High-leakproofness glue sealing safety protection door

Abstract

The utility model relates to a high-leakproofness glue sealing safety protection door which comprises a protection door body and a door frame, the door frame is connected with a rotating shaft through a fixing support, a rotating support is arranged on the side edge of the protection door body and matched with the rotating shaft, and a kidney-shaped hole is formed in the rotating support. The rotating support has translation freedom degree relative to the rotating shaft through the kidney-shaped hole, and the translation direction is perpendicular to the rotating shaft and the plane where the door frame is located. A double-layer sealing rubber strip is fixed to the side, facing the door frame, of the door body, and a hollow inner cavity is formed between the outer layer and the inner layer of the sealing rubber strip. A kidney-shaped hole is formed in the rotating support, so that the rotating support can horizontally move relative to the rotating shaft, the horizontal moving direction faces the door frame, the door body can be integrally close to the door frame, a small and consistent gap can be kept between the door body and the door frame, and the sealing rubber strip is arranged on the side face of the door body, so that enough sealing performance between the door body and the door frame is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the field of civil air defense safety, and in particular relates to a highly airtight glue-sealed safety protection door. Background Art

[0002] Civil air defense safety doors are special doors designed and manufactured for civil air defense projects. They are used to ensure the safety of life, material reserves and protection of important facilities in emergency situations. Civil air defense safety doors are usually driven by electricity or operated manually during use, and the mechanical structure is used to rotate the door leaf to open or close the civil air defense project.

[0003] Most of the existing civil air defense safety doors rotate horizontally. After the civil air defense safety door is closed, in order to ensure the airtightness between the door body and the door frame, a sealing strip is provided at the contact portion between the door body and the door frame to improve the closing sealing of the civil air defense safety door.

[0004] However, for the horizontally rotating civil air defense safety door, the rotation amplitude of the side of the door body close to the rotating shaft is small, and the rotation amplitude of the side away from the rotating shaft is large. Therefore, the sealing effect of the sealing strip on the side away from the rotating shaft is good, while the sealing effect of the sealing strip on the side close to the rotating shaft is poor, which will bring safety hazards to civil air defense safety.

[0005] Most of the existing sealing strips are fixed on the door frame, and the sealing strips are solid structures, the overall thickness is thin, and the deformation ability is weak. After the door body is closed, the phenomenon of partial poor sealing is easy to occur, so it is necessary to improve this existing problem. Summary of the invention

[0006] The utility model solves the defect in the prior art that, during the horizontal rotation of the civil air defense safety door, there is an unbalanced sealing phenomenon between the door body and the door frame, which affects the civil air defense safety effect. A highly airtight rubber-sealed safety protection door is provided, which adopts a sealing rubber strip with a hollow structure to improve the deformation ability of the rubber strip and increase the sealing performance. A translation structure is arranged at the rotating part of the door body, so that in addition to the rotation, the door body also adds a translation action toward the door frame, thereby ensuring the contact sealing effect between the door body and the door frame.

[0007] The specific technical scheme of the utility model is: a highly airtight rubber-sealed safety protective door, including a protective door body and a door frame, the door frame is connected to a rotating shaft through a fixed support, a rotating support is arranged on the side of the protective door body, the rotating support cooperates with the rotating shaft, a waist-shaped hole is arranged on the rotating support, and the rotating support has translational freedom relative to the rotating shaft through the waist-shaped hole, and the translational direction is perpendicular to the rotating shaft and to the plane where the door frame is located; a double-layer sealing rubber strip is fixed on the side of the door body facing the door frame, and a hollow inner cavity is provided between the outer layer and the inner layer of the sealing rubber strip.

[0008] The fixed support is fixed to the door frame, the rotating support is connected to the door body, and the fixed support and the rotating support are connected by a rotating shaft. The rotating support drives the door body to rotate relative to the rotating shaft, thereby realizing the closing and opening of the door body; a waist-shaped hole is arranged on the rotating support, so that the rotating support can rotate relative to the rotating shaft and can also translate relative to the rotating shaft, and the translation direction is toward the door frame, so that the door body rotates relative to the rotating shaft to close, and then translates relative to the rotating shaft, so that the door body can be moved closer to the door frame as a whole, so that a small and consistent gap can be maintained between the door body and the door frame, and the door body A sealing strip is arranged on the side to ensure that there is sufficient sealing between the door body and the door frame. Since the door body moves horizontally relative to the door frame as a whole, the compressibility of the sealing strip remains consistent, thereby ensuring the contact sealing effect between the door body and the door frame. The sealing strip adopts a double-layer structure, and a hollow inner cavity is arranged inside the sealing strip. When the sealing strip is compressed, the hollow inner cavity provides the sealing strip with sufficient deformation. At the same time, there is air in the hollow inner cavity, and the air has a good heat-insulating effect. Thus, an air heat-insulating ring is formed between the door body and the door frame, thereby improving the heat-insulating effect of the safety protection door.

[0009] Preferably, a rubber strip installation component connected end to end is provided on the side of the door body, the rubber strip installation component is groove-shaped, the sealed rubber strip is embedded in the rubber strip installation component, and adhesive is provided at the contacting part. The rubber strip installation component is a channel steel structure, fixed to the side of the door body by welding, the sealed rubber strip is embedded in the groove of the rubber strip installation component, and is fixed by adhesive, which increases the sealing between the sealed rubber strip and the rubber strip installation component and prevents the sealed rubber strip from falling off.

[0010] Preferably, the side edge of the opening of the rubber strip installation component is provided with a relative rib, and a stop structure is formed between the rib and the sealed rubber strip. The rib reduces the width of the opening of the rubber strip installation component, and the stop structure can be formed after the sealed rubber strip is embedded.

[0011] Preferably, the sealing strip is T-shaped, the horizontal part is the connecting part, the vertical part is the sealing part, the end of the sealing part is an arc protrusion, and the inner layer and the outer layer form a hollow cavity in the end of the sealing part. The shape of the sealing strip is exactly consistent with the structure of the narrowed width of the opening of the strip installation component. The vertical part of the sealing strip, i.e., the sealing part, is perpendicular to the door body. When the door body moves toward the door frame, the sealing part first contacts the door frame and is squeezed.

[0012] Preferably, the end of the inner layer at the sealing part is bifurcated, and the bifurcated direction is toward the two sides of the sealing strip. When the sealing part is squeezed, the bifurcated end of the inner layer is separated from the two sides, thereby increasing the contact area between the sealing part and the door frame and improving the sealing protection.

[0013] Preferably, the rotating shaft is divided into two sections, the upper section and the lower section are connected by a coupling sleeve and a pin; both the upper section and the lower section are provided with a pillow block, and the rotating shaft is supported and matched with the fixed support and the rotating support through the pillow block. The rotating shaft is divided into two sections, the upper section and the lower section are connected by a coupling sleeve and a pin, mainly because the rotating shaft is provided with a pillow block for supporting the fixed support and the rotating support, which facilitates the assembly of the rotating shaft with the rotating support and the fixed support, so that the upper section can be separately assembled with the fixed support and the rotating support, and the lower section can also be separately assembled with the fixed support and the rotating support.

[0014] Preferably, the fixed support has a connecting plate and a rotating table fixed on the connecting plate, the rotating table is provided with a rotating hole matched with the rotating shaft, and the hole diameter of the rotating hole is adapted to the outer diameter of the rotating shaft.

[0015] Preferably, the rotating support is divided into an angle-adjusting rotating support for adjusting the angle and a supporting rotating support for supporting. The angle-adjusting rotating support is used to adapt the angle relationship of the door body relative to the rotating axis, so that the door body rotates more smoothly; the supporting rotating support is used to support the door body.

[0016] Preferably, the angle-adjustable rotating support includes a connecting plate and a connecting seat, the connecting plate is matched with the rotating shaft through a self-aligning bearing, the connecting plate is provided with the waist-shaped hole, and the connecting seat is connected to the connecting plate through the waist-shaped hole and the pin. The self-aligning bearing is provided on the connecting plate, and the self-aligning bearing can adapt to the angle between the rotating shaft and the door body, and the angle can be adjusted so that the door body and the rotating shaft remain parallel, and the connecting seat is translated relative to the connecting plate through the waist-shaped hole.

[0017] As a preferred embodiment, the supporting rotating support comprises a bearing seat, a ball bearing bottom plate arranged below the bearing seat through balls, and the supporting rotating seat is supported on the rotating shaft through a thrust cylindrical roller bearing; the bearing seat is provided with the waist-shaped hole, and the rotating shaft passes through the waist-shaped hole. The bearing seat generates translation relative to the rotating shaft through the waist-shaped hole.

[0018] The beneficial effects of the utility model are as follows: a waist-shaped hole is arranged on the rotating support, so that the rotating support can rotate relative to the rotating shaft, and can also translate relative to the rotating shaft, and the translation direction is toward the door frame, so that the door body rotates relative to the rotating shaft to close, and then translates relative to the rotating shaft, so that the door body can be close to the door frame as a whole, so that a small and consistent gap can be maintained between the door body and the door frame, and a sealing strip is arranged on the side of the door body to ensure that there is sufficient sealing between the door body and the door frame, and because the door body translates as a whole relative to the door frame, the compressibility of the sealing strip remains consistent, thereby ensuring the contact sealing effect between the door body and the door frame; the sealing strip adopts a double-layer structure, and a hollow inner cavity is arranged inside the sealing strip, so that when the sealing strip is compressed, the hollow inner cavity provides the sealing strip with sufficient deformation, and at the same time, there is air in the hollow inner cavity, and the air has a good heat-insulating effect, so that an air heat-insulating ring is formed between the door body and the door frame, thereby improving the heat-insulating effect of the safety protection door. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 This is a structural schematic diagram of a sealing rubber strip of the utility model;

[0021] Figure 3 This is a structural schematic diagram of an angle-adjustable rotating support of the utility model;

[0022] Figure 4 It is a structural schematic diagram of a rotating plate of the utility model;

[0023] Figure 5 This utility model Figure 3 The schematic diagram of adjusting the translation of the rotating support is shown;

[0024] Figure 6 This is a structural schematic diagram of a supporting rotating support of the utility model;

[0025] Figure 7 It is a structural schematic diagram of a load-bearing seat of the utility model;

[0026] Figure 8 This utility model Figure 6 A schematic diagram of the translation of the supporting rotating support shown;

[0027] In the figure: 1. door body, 2. sealing rubber strip, 3. rubber strip installation component, 4. fixed support, 5. angle adjustment rotating support, 6. rotating shaft, 7. supporting rotating support, 8. coupling sleeve, 9. pillow block, 10. jack, 11. rib, 12. outer layer, 13. hollow inner cavity, 14. inner layer, 15. sleeve, 16. self-aligning bearing, 17. connecting plate, 18. connecting seat, 19. waist round hole, 20. locking hole, 21. locking pin, 22. load-bearing seat, 23. ball, 24. ball base plate, 25. thrust cylindrical roller bearing, 26. waist round hole, 27. ball slide plate, 28. ball slide, 29. ball baffle. DETAILED DESCRIPTION

[0028] The present invention will be further described below through specific embodiments in conjunction with the accompanying drawings. Example

[0029] like Figure 1 As shown, a highly airtight rubber-sealed safety protection door comprises a protection door body 1 and a door frame. A rotating shaft 6 is connected to the door frame through a fixed support 4. A rotating support is arranged on the side of the protection door body. The rotating support cooperates with the rotating shaft. The rotating support has a translational freedom relative to the rotating shaft, and the translational direction is perpendicular to the rotating shaft and the plane where the door frame is located. The rotating shaft is divided into two sections, the upper section and the lower section are connected by a coupling sleeve 8 and a pin shaft, and the ends of the upper section and the lower section are inserted into the two ends of the coupling sleeve respectively and fixed by the pin shaft. Countersunk holes are arranged at both ends of the coupling sleeve, and sinking platforms are arranged at the lower end of the upper section and the upper end of the lower section of the rotating shaft. The sinking platforms cooperate with the countersunk holes and form axial support. A shaft block 9 is arranged on both the upper section and the lower section, and the rotating shaft establishes support cooperation with the fixed support and the rotating support through the shaft block. There are four fixed supports and four rotating supports on the rotating shaft, and one fixed support and one rotating support form a group. There are two groups on the upper section of the rotating shaft and two groups on the lower section of the rotating shaft. The lower end of the lower section of the rotating shaft is connected with a jack 10 .

[0030] like Figure 2 As shown, a rubber strip installation component 3 connected end to end is provided on the side of the door body, and the rubber strip installation component is in a groove shape, and a double-layer sealed rubber strip 2 is embedded in the groove of the rubber strip installation component, and an adhesive is provided at the position where the groove bottom of the rubber strip installation component contacts the sealed rubber strip. A relative retaining edge 11 is provided on the opening side of the rubber strip installation component, and a stop structure is formed between the retaining edge and the sealed rubber strip. The sealed rubber strip is in a T shape, the horizontal part is the connecting part, the vertical part is the sealing part, and the end of the sealing part is an arc protrusion. The sealed rubber strip includes an outer layer and an inner layer, and the inner layer and the outer layer form a hollow inner cavity 13 in the end of the sealing part. The end of the inner layer at the sealing part is a forked structure, and the direction of the fork is toward the two sides of the sealed rubber strip. The elastic modulus of the inner layer is greater than the elastic modulus of the outer layer, and the outer layer completely covers the inner layer.

[0031] The pillow block of the rotating shaft is at the lower position, that is, the pillow block of the upper rotating shaft is at the lower position of the upper section, and the pillow block of the lower rotating shaft is at the lower position of the lower section. The upper rotating shaft is equipped with two sets of fixed supports and rotating supports, and the lower rotating shaft is equipped with two sets of fixed supports and rotating supports.

[0032] The fixed support has a connecting plate and a rotating table fixed on the connecting plate. The rotating table is provided with a rotating hole matched with the rotating shaft, and the hole diameter of the rotating hole is adapted to the outer diameter of the rotating shaft. The fixed support is located at the upper end of the rotating shaft and the lower part of the pillow block of the rotating shaft, and the lower fixed support supports the pillow block. The upper end of the upper rotating shaft is sleeved with a shaft sleeve 15, which radially passes through the pin shaft and is fixed to the rotating shaft. The lower end of the shaft sleeve is fixed to the upper surface of the rotating table.

[0033] The rotating support is divided into an angle-adjusting rotating support 5 for adjusting the angle and a supporting rotating support 7 for supporting. The angle-adjusting rotating support is grouped with the fixed support located above and is located below the corresponding fixed support, and the supporting rotating support is grouped with the fixed support located below and is located above the pillow block.

[0034] like Figure 3 Figure 4 As shown, the upper end of the upper rotating shaft cooperates with the angle-adjusting rotating support, and the angle-adjusting rotating support includes a connecting plate 17 and a connecting seat 18. The connecting plate is plate-shaped, and a bearing mounting hole is arranged on the side of the connecting plate ( Figure 4 The left side is in the middle), a self-aligning bearing 16 is installed in the bearing mounting hole, a bearing cover plate is fixed on the surface of the connecting plate, and the rotating shaft passes through the connecting plate, the self-aligning bearing and the bearing cover plate. A waist hole 19 ( Figure 4 The long axis of the oval hole is parallel to the other side of the connecting plate ( Figure 4 The right side in the figure), a locking hole 20 is also provided on the connecting plate at a position coaxial with the long axis of the waist circular hole, and the locking hole is at the lower side in the figure. The connecting seat includes a mounting plate and two ear seat plates fixed on the mounting plate by a vertical mounting plate, and the distance between the two ear seat plates is equal to the thickness of the connecting plate. The right side of the connecting plate is inserted into the position between the two ear seat plates, and a circular through hole is provided on the ear seat plate, and the diameter of the circular through hole is equal to that of the waist circular hole 19, and a pin shaft is inserted into the circular through hole and the waist circular hole. A circular hole is provided on the side of the circular through hole on the ear seat plate, and a locking pin 21 is inserted into the circular hole. As shown Figure 5As shown, after the connecting plate and the connecting seat are plugged, the pin shaft passes through the circular through hole and the waist round hole, the end of the pin shaft is limited by the split pin, the connecting seat is fixed to the side of the door body, after the door body is horizontally rotated to the right position, the connecting seat is translated relative to the connecting plate, and the pin shaft is translated from one end of the waist round hole to the other end of the waist round hole, in the figure, from the upper end of the waist round hole to the lower end of the waist round hole, after being translated to the right position, the locking pin is aligned with the locking hole and inserted into the locking hole. In this way, the door body is translated toward the door frame.

[0035] like Figure 6 Figure 7 As shown, the supporting rotating support includes a bearing seat 22, a ball bottom plate 24 arranged below the bearing seat through a ball 23, and the supporting rotating seat is supported on the pillow block of the rotating shaft through a thrust cylindrical roller bearing 25. The bearing seat is welded and fixed by steel plates, and includes a square frame and a mounting plate extending from the side. The upper plate and the lower plate of the square frame are both provided with a waist-shaped hole 26, the aperture of which is adapted to the outer diameter of the rotating shaft, and the translation distance of the rotating shaft in the waist-shaped hole is equal to the translation distance of the pin shaft on the angle adjustment rotating support in the waist-shaped hole. A ball slide plate 27 is fixed below the lower plate, and a plurality of parallel ball slides 28 are provided on the lower surface of the ball slide plate, and the ball slides are adapted to the balls, and the depth of the ball slides is less than the radius of the balls. Two ball baffles 29 are fixed below the square frame, and the ball baffles are located at both ends of the ball slide plate, and the height of the ball baffles is greater than the thickness of the ball slide plate. A circular hole matched with the rotating shaft is arranged on the ball bearing bottom plate, and the upper surface of the ball bearing bottom plate is provided with the same ball bearing slideway, and the ball is located between the upper and lower ball bearing slideways.

[0036] like Figure 8 As shown, after the door body is horizontally rotated to the right position, the bearing seat moves relative to the rotation axis under the support of the ball, and the fit between the waist hole and the rotation axis moves from one end to the other, thus completing the process of the door body moving closer to the door frame. The translation amount of the bearing seat relative to the rotation axis is equal to the translation amount of the connecting seat relative to the connecting plate.

[0037] The above description is only a preferred embodiment of the present invention and does not constitute any limitation to the present invention. Any simple modification, change and equivalent transformation made to the above embodiments according to the technical essence of the present invention shall still fall within the protection scope of the technical solution of the present invention.

Claims

1. A highly airtight rubber-sealed safety protection door, characterized in that: The protective door body (1) comprises a protective door body and a door frame, wherein a rotating shaft (6) is connected to the door frame via a fixed support (4), a rotating support is arranged on the side of the protective door body, the rotating support cooperates with the rotating shaft, a waist-shaped hole is arranged on the rotating support, and the rotating support has a translational freedom relative to the rotating shaft through the waist-shaped hole, and the translational direction is perpendicular to the rotating shaft and perpendicular to the plane where the door frame is located; a double-layer sealing rubber strip (2) is fixed on the side of the door body facing the door frame, and a hollow inner cavity (13) is provided between the outer layer (12) and the inner layer (14) of the sealing rubber strip.

2. A highly airtight rubber-sealed safety protection door according to claim 1, characterized in that: The side of the door body is provided with a rubber strip installation component connected end to end, the rubber strip installation component is groove-shaped, the sealed rubber strip is embedded in the rubber strip installation component, and the contacting position is provided with adhesive glue.

3. A highly airtight rubber-sealed safety protection door according to claim 2, characterized in that: The side edge of the opening of the rubber strip installation component is provided with a corresponding retaining edge (11), and a stop structure is formed between the retaining edge and the sealing rubber strip.

4. A highly airtight rubber-sealed safety protection door according to claim 1, 2 or 3, characterized in that: The sealing strip is T-shaped, the horizontal part is the connecting part, the vertical part is the sealing part, the end of the sealing part is an arc protrusion, and the inner layer and the outer layer form a hollow cavity in the end of the sealing part.

5. A highly airtight rubber-sealed safety protection door according to claim 4, characterized in that: The end of the inner layer at the sealing portion is in a bifurcated structure, and the bifurcated direction is toward the two sides of the sealing rubber strip.

6. A highly airtight rubber-sealed safety protection door according to claim 1, characterized in that: The rotating shaft is divided into two sections, the upper section and the lower section are connected via a coupling sleeve (8) and a pin shaft; both the upper section and the lower section are provided with a pillow block (9), and the rotating shaft is supported and matched with the fixed support and the rotating support via the pillow block.

7. A highly airtight rubber-sealed safety protection door according to claim 1, 2, 3 or 6, characterized in that: The fixed support has a connecting plate and a rotating table fixed on the connecting plate. The rotating table is provided with a rotating hole matched with the rotating shaft, and the hole diameter of the rotating hole is adapted to the outer diameter of the rotating shaft.

8. A highly airtight rubber-sealed safety protection door according to claim 1, 2, 3 or 6, characterized in that: The rotating support is divided into an angle-adjusting rotating support (5) for adjusting the angle and a supporting rotating support (7) for supporting.

9. A highly airtight rubber-sealed safety protection door according to claim 8, characterized in that: The angle-adjustable rotating support comprises a connecting plate (17) and a connecting seat (18), wherein the connecting plate cooperates with the rotating shaft via a self-aligning bearing, the connecting plate is provided with the waist-shaped hole, and the connecting seat is connected to the connecting plate via the waist-shaped hole and a pin shaft.

10. A highly airtight rubber-sealed safety protection door according to claim 8, characterized in that: The supporting rotating support comprises a bearing seat (22) and a ball bearing base plate (24) arranged below the bearing seat via balls (23); the supporting rotating seat is supported on the rotating shaft via a thrust cylindrical roller bearing; the bearing seat is provided with the waist-shaped hole, and the rotating shaft passes through the waist-shaped hole.

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