A fast opening and closing weathertight steel door

Abstract

The invention relates to a fast-opening and closing weatherproof steel door, comprising a door plate, the edge of which extends to one side to form a first extension portion, the first extension portion is annular in shape and has an arc-shaped cross section; a sealing ring is sleeved on the first extension portion, and the cross-sectional shape of the sealing ring matches the cross-sectional shape of the first extension portion. The fast-opening and closing weatherproof steel door provided by the invention has good sealing performance.

Description

Technical Field

[0001] The invention belongs to the technical field of marine accessories, and in particular relates to a fast-opening and closing weathertight steel door. Background Art

[0002] Ships are means of transportation on water. With the development of transportation, the requirements for supporting equipment of ships are getting higher and higher. Among them, weatherproof steel doors are one of the important accessories. During the use of ships, it is required that the weatherproof doors cannot get water in the case of wind and waves. Existing weatherproof doors are all plate-shaped structures, and the sealing is achieved by the sealing strips on the edge of the weatherproof steel doors. However, due to the entry and exit of staff, the weatherproof steel doors are often opened and closed, which makes the sealing strips frequently rub against the corresponding parts of the door frame and the corresponding parts of the weatherproof steel door, making the corresponding parts of the sealing strips and the door frame easily damaged and the sealing effect of the corresponding parts of the door frame deteriorated. How to solve this problem has been studied. Summary of the invention

[0003] In view of the problems existing in the above-mentioned prior art, the present invention provides a fast opening and closing weathertight steel door to solve the above-mentioned technical problems.

[0004] In order to achieve the above-mentioned object of the invention, a technical solution provided by the present invention is as follows:

[0005] A fast-opening and closing weatherproof steel door comprises a door panel, the edge of which extends to one side to form a first extension portion, the first extension portion is annular in shape and has an arc-shaped cross section; a sealing ring is sleeved on the first extension portion, and the cross-sectional shape of the sealing ring matches the cross-sectional shape of the first extension portion.

[0006] Preferably, a fixing groove is provided on the outer side surface of the first extension portion, a protrusion is provided on the bottom surface of the fixing groove, and a groove matching the protrusion is provided on the inner side of the sealing ring, and the depth of the groove is greater than the height of the protrusion; the inner side of the sealing ring is stuck in the fixing groove, and the outer side is exposed outside the fixing groove and is chamfered at one end away from the door panel; a thickened portion is provided on the inner side of the first extension portion at a position corresponding to the fixing groove, a sealing plate is fixed on the inner side surface of the thickened portion, and an airbag is provided between the sealing plate and the door panel; a connecting channel is provided on the protrusion, and the connecting channel is connected with the airbag.

[0007] Preferably, an inner recess is provided at the top of one end of the first extension portion away from the door panel, and a second extension portion extending outward is provided at the bottom.

[0008] Preferably, the fixing groove is located in the middle of the first extension part or close to the door panel; a V-shaped groove is provided on the outer side surface of the first extension part at a position close to the fixing groove, and the V-shaped groove is located on the side of the fixing groove away from the door panel; a guide channel is provided at one end of the first extension part away from the door panel, and the guide channel is connected to the V-shaped groove.

[0009] Preferably, a fixing groove is provided on the outer side surface of the first extension portion, and the fixing groove is located at a portion of the first extension portion away from the door panel, a protrusion is provided on the bottom surface of the fixing groove, and a groove matching the protrusion is provided on the inner side of the sealing ring, and the depth of the groove is greater than the height of the protrusion; a guide portion is provided on the top surface of the first extension portion on the side away from the door panel, the inner side of the sealing ring is stuck in the fixing groove, and a third extension portion is provided on the outer side exposed outside the fixing groove and away from the door panel, and the third extension portion covers a portion of the guide portion; a thickened portion is provided on the inner side of the first extension portion corresponding to the position of the fixing groove, a sealing plate is fixed on the inner side surface of the thickened portion, and an airbag is provided between the sealing plate and the door panel; a connecting channel is provided on the protrusion, and the connecting channel is connected with the airbag.

[0010] Preferably, an inner recess is arranged at the top of one end of the first extension portion away from the door panel, and a second extension portion extending outward is arranged at the bottom.

[0011] The fast opening and closing weathertight steel door provided by the present invention is used in conjunction with a door frame of a corresponding shape, such as Figure 8 As shown, the door frame generally includes a frame 19 matching the first extension portion, and a door opening 18 is formed in the middle of the frame. The fast opening and closing weathertight steel door has the following advantages:

[0012] 1. Good sealing performance. When the first extension part moves toward the door opening, the sealing strip does not contact the inner side of the frame. Only when the first extension part and the inner side of the frame are almost matched, the outer surface of the sealing strip contacts the inner surface of the frame and the outer surface of the sealing strip contacts the inner surface of the frame to compress the sealing strip, so that the first extension part and the frame are quickly sealed. Compared with the prior art, the wear of the sealing strip and the door frame can be reduced;

[0013] 2. The fixing groove and the protrusion on the bottom of the fixing groove fix the inner side surface of the sealing strip and the surfaces on both sides of the inner side surface, reducing the relative movement between the sealing strip, the first extension part and the sealing strip, thereby reducing the friction between the first extension part and the sealing strip, thereby further reducing the wear of the sealing strip.

[0014] 3. The first extension part is arc-shaped. In the process of opening outward, since the side close to the door panel is narrower than the other side, the process of driving the steel door to open can be to swing to one side while opening outward, so as to speed up the opening of the door. Of course, a driving device for directly driving the door panel to open outward is also provided in the ship cabin. After opening, people can enter and exit from both sides, which is more convenient.

[0015] 4. The air pressure in the groove is adjusted by the airbag. Specifically, when the sealing ring is under great pressure, the air pressure in the groove can be pressed into the airbag until the pressure is balanced with that in the airbag, so as to reduce the wear of the sealing ring by the frame.

[0016] If the sealing ring is slightly worn, the gas pressure in the groove makes the outer side of the sealing ring still bulge outward, and the airbag replenishes the gas in the groove to achieve the balance between the air pressure in the groove and the air pressure in the airbag. The more serious the wear on the outer side of the sealing ring is, the greater the internal air pressure squeezes and deforms it, thereby maintaining the sealing ring in close contact with the frame, ensuring the sealing effect of the steel door;

[0017] In addition, the airbag can be connected to a pressurizing device to decompress the airbag when the airtight steel door is closed so that the gas in the groove flows into the airbag, causing the sealing ring to deform rapidly under the pressure of the inner side of the frame to reduce the extrusion and wear between the sealing ring and the inner side of the frame. When the airtight steel door is closed in place, the airbag is pressurized so that the sealing ring is in full contact with the inner side of the frame to ensure the sealing effect of the airtight steel door. When the airtight steel door is opened, the reverse operation can be performed. This can also greatly reduce the wear of the sealing ring.

[0018] 5. By setting the chamfer, the portion of the outer side of the sealing ring outside the groove is not easily squeezed out of the fixing groove due to deformation when it is squeezed, so that the edge of the sealing ring is not easily squeezed and damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front structural schematic diagram of the fast opening and closing weathertight steel door of the present invention;

[0020] Figure 2 for Figure 1 One of the AA section views;

[0021] Figure 3 for Figure 2 A magnified view at point A;

[0022] Figure 4 for Figure 1 The second AA section view;

[0023] Figure 5 for Figure 4 Enlarged view at B;

[0024] Figure 6 for Figure 1AA section view 3;

[0025] Figure 7 for Figure 6 Enlarged view at C;

[0026] Figure 8 It is a schematic diagram of the structure of the door frame that matches the fast-opening and closing weathertight steel door;

[0027] Reference numerals in the figure: door panel 1, first extension portion 2, sealing ring 3, fixing groove 4, protrusion 5, groove 6, chamfer 7, thickened portion 8, sealing plate 9, airbag 10, connecting channel 11, recessed portion 12, second extension portion 13, V-shaped groove 14, guide channel 15, guide portion 16, third extension portion 17, first door opening 18, frame 19. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0029] Embodiment 1, the present invention provides a fast opening and closing weathertight steel door, see Figure 1-Figure 3 , comprising a door panel 1, the edge of the door panel extends to one side to form a first extension portion 2, the shape of the first extension portion is annular, and the cross section is arc-shaped, which can generally be understood as a section of a semi-ellipse or semicircle, and it can be understood that the cross section described here is the longitudinal cross section of the first extension portion; the outer side surface of the first extension portion is provided with a fixing groove 4, the bottom surface of the fixing groove is provided with a protrusion 5, the first extension portion is sleeved with a sealing ring 3, the cross-sectional shape of the sealing ring matches the cross-sectional shape of the first extension portion, so that when the sealing ring is squeezed, the outer side surface and the outer side surface of the first extension portion smoothly transition, the inner side of the sealing ring is provided with a groove 6 matching the protrusion, and the depth of the groove is greater than the height of the protrusion; the inner side of the sealing ring is stuck in the fixing groove, and the outer side is exposed outside the fixing groove and is provided with a chamfer 7 at one end away from the door panel; the inner side of the first extension portion is provided with a thickened portion 8 corresponding to the position of the fixing groove, and a sealing plate 9 is fixed to the inner side surface of the thickened portion, and an airbag 10 is provided between the sealing plate and the door panel; a connecting channel 11 is provided on the protrusion, and the connecting channel is connected to the airbag.

[0030] The above-mentioned fast opening and closing weathertight steel door is used in conjunction with a door frame of corresponding shape, such as Figure 8As shown, the door frame generally includes a frame 19 matching the first extension portion, and a door opening 18 is formed in the middle of the frame. The fast opening and closing weathertight steel door has the following advantages:

[0031] 1. Good sealing performance. When the first extension part moves toward the door opening, the sealing strip does not contact the inner side of the frame. Only when the first extension part and the inner side of the frame are almost matched, the outer surface of the sealing strip contacts the inner surface of the frame and the outer surface of the sealing strip contacts the inner surface of the frame to compress the sealing strip, so that the first extension part and the frame are quickly sealed. Compared with the prior art, the wear of the sealing strip and the door frame can be reduced;

[0032] 2. The fixing groove and the protrusion on the bottom of the fixing groove fix the inner side surface of the sealing strip and the surfaces on both sides of the inner side surface, reducing the relative movement between the sealing strip, the first extension part and the sealing strip, thereby reducing the friction between the first extension part and the sealing strip, thereby further reducing the wear of the sealing strip.

[0033] 3. The first extension part is arc-shaped. In the process of opening outward, since the side close to the door panel is narrower than the other side, the process of driving the steel door to open can be to swing to one side while opening outward, so as to speed up the opening of the door. Of course, a driving device for directly driving the door panel to open outward is also provided in the ship cabin. After opening, people can enter and exit from both sides, which is more convenient.

[0034] 4. The air pressure in the groove is adjusted by the airbag. Specifically, when the sealing ring is under great pressure, the air pressure in the groove can be pressed into the airbag until the pressure is balanced with that in the airbag, so as to reduce the wear of the sealing ring by the frame.

[0035] If the sealing ring is slightly worn, the gas pressure in the groove makes the outer side of the sealing ring still bulge outward, and the airbag replenishes the gas in the groove to achieve the balance between the air pressure in the groove and the air pressure in the airbag. The more serious the wear on the outer side of the sealing ring is, the greater the internal air pressure squeezes and deforms it, thereby maintaining the sealing ring in close contact with the frame, ensuring the sealing effect of the steel door;

[0036] In addition, the airbag can be connected to a pressurizing device to decompress the airbag when the airtight steel door is closed so that the gas in the groove flows into the airbag, causing the sealing ring to deform rapidly under the pressure of the inner side of the frame to reduce the extrusion and wear between the sealing ring and the inner side of the frame. When the airtight steel door is closed in place, the airbag is pressurized so that the sealing ring is in full contact with the inner side of the frame to ensure the sealing effect of the airtight steel door. When the airtight steel door is opened, the reverse operation can be performed. This can also greatly reduce the wear of the sealing ring.

[0037] 5. By setting the chamfer, the portion of the outer side of the sealing ring outside the groove is not easily squeezed out of the fixing groove due to deformation when it is squeezed, so that the edge of the sealing ring is not easily squeezed and damaged.

[0038] In actual use, in order to achieve better waterproof effect, the applicant also made the following design, see Figure 2 The first extension part is provided with an inner recess 12 at the top of one end away from the door panel, and the bottom of the inner recess can generally be set to be inclined. A second extension part 13 extending outward is provided at the bottom of the first extension part away from one end of the door panel. When this structure is in use, when the sealed steel door is combined with the frame, the top end extends inward due to the existence of the inner recess. When seawater or rainwater hits this position, water droplets are easy to slide down along the inner recess under the action of gravity, and are not easy to adhere to the joint and penetrate inward; due to the existence of the second extension part, the bottom end bulges outward, which is convenient for the upper water to flow downward and prevent water from gathering at the lower joint and seeping. Generally, the top surface of the second extension part can be slightly lower than the top surface of the first extension part.

[0039] Example 2, based on Example 1, see Figure 4 and Figure 5 , the fixing groove is located in the middle of the first extension part or close to the door panel. In this way, the sealing ring can contact the frame earlier when the airtight steel door is closed, so that the sealing ring can be fully squeezed and the sealing effect is better; the first extension part is provided with a V-shaped groove 14 on the outer side surface close to the fixing groove, and the V-shaped groove is located on the side of the fixing groove away from the door panel; the first extension part is provided with a guide channel 15 at one end away from the door panel, and the guide channel is connected to the V-shaped groove. This structure can also be used in combination with the optional structure in the embodiment, so that the guide channel is located in the inner recessed part to facilitate guide. By setting the V-shaped groove, once water penetrates through the gap, it first reaches the V-shaped groove and is discharged through the guide channel, thereby greatly improving the sealing performance of the airtight steel door.

[0040] Example 3, based on Example 1, see Figure 6 and Figure 7 The fixing groove may also be arranged at a position of the first extension away from the door panel, and a guide portion 16 may be arranged on a side of the top surface of the first extension away from the door panel. The guide portion may be as follows: Figure 7 The inclined arc surface shown is arranged as an inclined surface to facilitate water to flow downward. The outer side of the sealing ring that is exposed outside the fixing groove is provided with a third extension portion 17 at the end away from the door panel. The third extension portion covers a portion of the guide portion. In this way, the other part of the guide portion is used to guide water. The third extension portion is squeezed and cooperates with the frame to form a barrier with the water. The blocked water is discharged downstream along the guide portion to prevent water from entering.

[0041] The above-mentioned embodiments only express the implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A fast opening and closing weathertight steel door, comprising a door panel (1), characterized in that: The edge of the door panel extends to one side to form a first extension portion (2), the first extension portion is annular in shape and has an arc-shaped cross section; A sealing ring (3) is sleeved on the first extension portion, and the cross-sectional shape of the sealing ring matches the cross-sectional shape of the first extension portion; The outer side surface of the first extension portion is provided with a fixing groove (4), the bottom surface of the fixing groove is provided with a protrusion (5), and the inner side of the sealing ring is provided with a groove (6) matching the protrusion, and the depth of the groove is greater than the height of the protrusion; The inner side of the sealing ring is clamped in the fixing groove, and the outer side is exposed outside the fixing groove and is provided with a chamfer (7) at one end away from the door panel; A thickened portion (8) is provided on the inner side of the first extension portion at a position corresponding to the fixing groove, a sealing plate (9) is fixed to the inner side surface of the thickened portion, and an air bag (10) is provided between the sealing plate and the door panel; The protrusion is provided with a communication channel (11), and the communication channel is connected to the airbag.

2. A fast opening and closing weathertight steel door according to claim 1, characterized in that: An end of the first extension portion away from the door panel is provided with an inner recess (12) at the top, and a second extension portion (13) extending outward is provided at the bottom.

3. The fast opening and closing weathertight steel door according to claim 1, characterized in that: The fixing groove is located in the middle of the first extension portion or close to the door panel; A V-shaped groove (14) is provided on the outer side surface of the first extension portion at a position close to the fixing groove, and the V-shaped groove is located on a side of the fixing groove away from the door panel; A guide channel (15) is provided at one end of the first extension portion away from the door panel, and the guide channel is communicated with the V-shaped groove.

4. A fast opening and closing weathertight steel door, comprising a door panel (1), characterized in that: The edge of the door panel extends to one side to form a first extension portion (2), the first extension portion is annular in shape and has an arc-shaped cross section; A sealing ring (3) is sleeved on the first extension part, and the cross-sectional shape of the sealing ring matches the cross-sectional shape of the first extension part; a fixing groove (4) is provided on the outer side surface of the first extension part, a protrusion (5) is provided on the bottom surface of the fixing groove, and a groove (6) matching the protrusion is provided on the inner side of the sealing ring, the depth of the groove is greater than the height of the protrusion, and the fixing groove is located at a portion of the first extension part away from the door panel; A guide portion (16) is provided on the top surface of the first extension portion at a side away from the door panel, the inner side of the sealing ring is clamped in the fixing groove, and a third extension portion (17) is provided on the outer side exposed outside the fixing groove and at an end away from the door panel, the third extension portion covering a portion of the guide portion; A thickened portion (8) is provided on the inner side of the first extension portion at a position corresponding to the fixing groove, a sealing plate (9) is fixed to the inner side surface of the thickened portion, and an air bag (10) is provided between the sealing plate and the door panel; The protrusion is provided with a communication channel (11), and the communication channel is connected to the airbag.

5. The fast opening and closing weathertight steel door according to claim 4, characterized in that: An end of the first extension portion away from the door panel is provided with an inner recess (12) at the top, and a second extension portion (13) extending outward is provided at the bottom.

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