Civil air defense door frame

By using a snap-fit ​​connection method with barbs and triangular supports in the air-raid shelter door frame, the problem of poor stability of the door frame is solved, achieving higher fixing stability and installation efficiency, and enhancing the sealing effect.

CN223881001UActive Publication Date: 2026-02-06SHANGHAI SONGYANG CIVIL DEFENSE ENG EQUIP CO LTD
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Patent Information

Application Number
CN202423240586.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-26
Publication Date
2026-02-06
Estimated Expiration
2034-12-26

AI Technical Summary

Technical Problem

The existing door frames of air-raid shelters have poor stability when fixed to the wall, and there is a need for improvement.

Method used

Several barbs are installed between the outer frame and the inner frame, and the connection is enhanced by the insertion and snapping of the barbs and the triangular support. The barbs are located in the concrete for traction and fixation, and the connection strength is improved by combining the X-shaped support and the conical sleeve.

Benefits of technology

It improves the stability and installation efficiency of the civil defense door frame, reduces the risk of deformation and breakage at the joints, and enhances the sealing effect.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223881001U_ABST
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Abstract

The utility model discloses a civil air defense door frame, relates to the technical field of civil air defense doors, solves the problem that the existing civil air defense door frame is usually fixed on a wall body, and the stability is poor due to the mode of directly installing the door frame, and comprises an outer frame body and an inner frame body fixedly installed on one side of the outer frame body, a rubber strip fixing groove is formed in the other side of the outer frame body, the inner frame body is perpendicular to the outer frame body, and a plurality of barbs arranged at equal intervals are installed between the outer frame body and the inner frame body. According to the utility model, the plurality of barbs are arranged between the outer frame body and the inner frame body, so that when the civil air defense door frame body is installed, the barbs are positioned inside concrete to play a role in pulling and fixing the door frame, and the fixing stability of the door frame is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of civil air defense door, especially to a civil air defense door frame. BACKGROUND

[0002] The civil air defense door is the door of the people's entrance, and the civil air defense door is classified as the ordinary single and double-leaf protective and airtight door, the movable door sill single and double-leaf and airtight door and various civil air defense equipment. Before installing the civil air defense door, the door frame needs to be welded and manufactured.

[0003] The existing civil air defense door frame is usually a rectangular frame structure, and the door frame is fixed on the wall during the installation of the civil air defense door. The door frame supports the door leaf better, but the direct installation of the door frame has the problem of poor stability, and there is room for improvement.

[0004] Therefore, the civil air defense door frame is provided. UTILITY MODEL CONTENTS

[0005] In order to improve the existing civil air defense door frame, the door frame is usually fixed on the wall, and the direct installation of the door frame has the problem of poor stability, the utility model provides a civil air defense door frame.

[0006] The utility model provides a civil air defense door frame, adopts the following technical scheme:

[0007] A civil air defense door frame, comprising an outer frame body and an inner frame body fixedly installed on one side of the outer frame body, a rubber strip fixing groove is formed on the other side of the outer frame body, the inner frame body is perpendicular to the outer frame body, and a plurality of equally spaced inverted hooks are installed between the outer frame body and the inner frame body.

[0008] By adopting the above technical scheme, the inverted hooks are located inside the concrete during the installation of the civil air defense door frame, which plays a traction and fixing role on the door frame and improves the fixing stability of the door frame.

[0009] Optionally, a plurality of triangular supports are fixedly installed between the outer frame body and the inner frame body.

[0010] By adopting the above technical scheme, the triangular supports are arranged, the connection strength between the outer frame body and the inner frame body is improved, so that the inner frame body and the outer frame body are not prone to deformation.

[0011] Optionally, the triangular support is internally provided with a slot, the bottom of the barb is fixedly provided with a connecting plate, the bottom of the connecting plate is fixedly provided with a plug plate, the plug plate is inserted into the slot, both sides of the plug plate are provided with a clamping groove, both sides of the triangular support are fixedly provided with a shell in communication with the slot, the shell is internally slidably provided with a clamping plate, one end of the clamping plate and the inner wall of the shell are fixedly provided with a spring, the other end of the clamping plate is inserted into the clamping groove.

[0012] By adopting the above technical scheme, the plug plate is inserted into the slot of the triangular support, the clamping plate is stably inserted into the clamping groove of the plug plate under the action of the spring, the plug plate is fixed, and the installation of the barb is realized.

[0013] Optionally, the upper surface of the clamping plate near the one end of the plug plate is provided with a slope structure.

[0014] By adopting the above technical scheme, when the plug plate is inserted into the slot of the triangular support, the plug plate is inserted between the two clamping plates.

[0015] Optionally, the clamping plate is internally rotatably provided with a plurality of rolling balls near the one end of the plug plate.

[0016] By adopting the above technical scheme, the rolling balls are arranged, the friction between the end of the clamping plate and the surface of the plug plate is greatly reduced when the plug plate moves between the two clamping plates, and the movement of the plug plate is facilitated.

[0017] Optionally, the number of the barbs is two, the two barbs are symmetrically arranged on the connecting plate, and an X-shaped support is fixedly arranged between the two barbs.

[0018] By adopting the above technical scheme, the structural connection stability between the two barbs is improved by arranging the X-shaped support, the barbs are not easy to deform and bend during transportation or installation of the door frame, and the use effect is improved.

[0019] Optionally, the surface of the bottom of the barb is fixedly provided with a conical sleeve, and the bottom of the conical sleeve is welded with the connecting plate.

[0020] By adopting the above technical scheme, the conical sleeve is welded on the surface of the bottom of the barb, and then the bottom of the conical sleeve is welded with the connecting plate, so that the connection strength between the bottom of the barb and the connecting plate is improved, and the barb and the connecting plate are not easy to be disconnected due to bending.

[0021] In summary, the present application has the following advantages:

[0022] 1. The utility model discloses a plurality of barbs are installed between the outer frame body and the inner frame body, when the civil air defense door frame body is installed, the barb is located in the inside of concrete, and the traction fixing effect is played to the door frame, and the fixed stability of door frame is improved.

[0023] 2. The utility model discloses the plug -in board of barb below is inserted to the inside of the triangular support's insertion slot, and the clamping plate is inserted to the clamping groove of plug -in board under the action force of spring stably, the fixing of plug -in board is fixed to the barb installation, and this kind of insertion clamping connection mode greatly improves the installation efficiency of staff to barb, and does not need to help other tools in the installation process, and it is very convenient. DRAWINGS

[0024] Figure 1 It is the front view cross section structure schematic drawing of the utility model.

[0025] Figure 2 It is the overhead connection structure schematic drawing of the utility model outer frame body, inner frame body and triangular support.

[0026] Figure 3 It is the structure schematic drawing of the utility model clamping groove.

[0027] Figure 4 It is the structure schematic drawing of the utility model clamping plate

[0028] Mark explanation:

[0029] 1, outer frame body, 2, inner frame body, 3, adhesive tape fixed groove, 4, barb, 5, triangular support, 6, insertion slot, 7, connecting plate, 8, plug -in board, 9, clamping groove, 10, shell, 11, clamping plate, 12, spring, 13, ball, 14, X-shaped support, 15, conical sleeve. Specific implementation

[0030] The following combines the drawings of the utility model embodiment in the utility model embodiment, Figures 1-4 The technical scheme in the utility model embodiment is clearly and completely described, obviously, the described embodiment only is a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the range of the utility model protection.

[0031] Please refer to Figures 1-2The utility model provides a civil air defence door frame, including outer frame body 1 and fixedly installed inner frame body 2 in one side of outer frame body 1, and inner frame body 2 and outer frame body 1 are integrally structured design, and a plurality of triangular supports 5 are fixedly installed between outer frame body 1 and inner frame body 2, the setting of triangular support 5 improves the connecting strength between outer frame body 1 and inner frame body 2, so that inner frame body 2 and outer frame body 1 are not prone to deformation condition between. The other side of outer frame body 1 is provided with adhesive tape fixed groove 3, and adhesive tape fixed groove 3 is used to install sealing adhesive tape, so that when installing civil air defence door in later period, it is favorable to improve the sealing effect between civil air defence door and outer frame body 1. Inner frame body 2 is perpendicular to outer frame body 1.

[0032] With reference to Figure 1 And Figure 3 A plurality of equidistantly arranged barbs 4 are installed between outer frame body 1 and inner frame body 2, by installing a plurality of barbs 4 between outer frame body 1 and inner frame body 2, when installing civil air defence door frame body, the barb 4 is located inside concrete, and the door frame is fixed by traction, and the fixed stability of the door frame is improved. The inside of triangular support 5 is provided with a slot 6, the bottom of barb 4 is fixedly installed with a connecting plate 7, the number of barb 4 is two, two barbs 4 are symmetrically arranged on the connecting plate 7, and X-shaped support 14 is fixedly installed between the two barbs 4, by the setting of X-shaped support 14, the structural connection stability between the two barbs 4 is improved, and the barb 4 is not prone to deformation bending during transportation or the installation of door frame, to improve the use effect. The surface of the bottom of barb 4 is fixedly installed with a tapered sleeve 15, the bottom of tapered sleeve 15 is welded with connecting plate 7, by welding tapered sleeve 15 on the surface of the bottom of barb 4, then welding the bottom of tapered sleeve 15 with connecting plate 7, it is favorable to improve the connecting strength between the bottom of barb 4 and connecting plate 7, and the connecting portion of barb 4 and connecting plate 7 is not prone to breakage due to bending.

[0033] With reference to Figure 1 And Figure 4The bottom of the connecting plate 7 is fixedly provided with an insertion plate 8, the size of the insertion plate 8 is matched with the size of the insertion slot 6, and the insertion plate 8 is inserted into the inside of the insertion slot 6. The two sides of the insertion plate 8 are provided with clamping grooves 9, the two sides of the triangular support 5 are fixedly provided with housings 10 which are communicated with the inside of the insertion slot 6, the housings 10 are slidably provided with clamping plates 11, one end of the clamping plate 11 is fixedly provided with a spring 12 between the inner wall of the housing 10, the other end of the clamping plate 11 is inserted into the inside of the clamping groove 9, the clamping plate 11 is stably inserted into the clamping groove 9 of the insertion plate 8 under the action force of the spring 12, the insertion plate 8 is fixed, and the installation of the barb 4 is realized, the insertion and clamping connection mode greatly improves the installation efficiency of the barb 4 by workers, and other tools are not needed in the installation process, and the installation is very convenient. The upper surface of one end of the clamping plate 11 close to the insertion plate 8 is provided with a slope structure, the insertion plate 8 is inserted between the two clamping plates 11 when the insertion plate 8 is inserted into the insertion slot 6 of the triangular support 5, and the insertion plate 8 is inserted between the two clamping plates 11. A plurality of rolling balls 13 are rotatably arranged in the inside of one end of the clamping plate 11 close to the insertion plate 8, the friction force between the end of the clamping plate 11 and the surface of the insertion plate 8 is greatly reduced when the insertion plate 8 moves between the two clamping plates 11, and the movement of the insertion plate 8 is facilitated.

[0034] The implementation principle of the utility model is: through installing a plurality of barbs 4 between the outer frame body 1 and the inner frame body 2, the barbs 4 are located in the inside of the concrete when the civil air defense door frame body is installed, the barbs 4 play a traction fixing role on the door frame, the fixing stability of the door frame is improved, the other side of the outer frame body 1 is provided with a rubber strip fixing groove 3, the rubber strip fixing groove 3 is used for installing a sealing rubber strip, thereby being beneficial to improving the sealing effect between the civil air defense door and the outer frame body 1 when the civil air defense door is installed later, further, X-shaped supports 14 are fixedly installed between the two barbs 4, the structural connection stability between the two barbs 4 is improved through the setting of the X-shaped supports 14, the barbs 4 are not prone to deformation and bending during transportation or the installation of the door frame, thereby improving the use effect, at the same time, the bottom surface of the tapered sleeve 15 is welded and fixed on the bottom of the barb 4, then the bottom of the tapered sleeve 15 is welded and fixed with the connecting plate 7, which is beneficial to improving the connecting strength between the bottom of the barb 4 and the connecting plate 7, and the connecting part of the barb 4 and the connecting plate 7 is not prone to breaking due to bending, in addition, a plurality of triangular supports 5 are fixedly installed between the outer frame body 1 and the inner frame body 2, the connecting strength between the outer frame body 1 and the inner frame body 2 is improved through the setting of the triangular supports 5, so that the inner frame body 2 and the outer frame body 1 are not prone to deformation;

[0035] When the barb 4 is installed, the insertion plate 8 under the barb 4 is inserted into the insertion slot 6 of the triangular support 5, the clamping plate 11 is stably inserted into the clamping slot 9 of the insertion plate 8 under the action of the spring 12, the insertion plate 8 is fixed, thereby the installation of the barb 4 is realized, the insertion and clamping connection mode greatly improves the installation efficiency of the barb 4 by the worker, and other tools are not needed in the installation process, which is very convenient, and in the process, the upper surface of the end of the clamping plate 11 close to the insertion plate 8 is provided with a slope structure, which is beneficial to insert the insertion plate 8 between the two clamping plates 11 when the insertion plate 8 is inserted into the insertion slot 6 of the triangular support 5, in addition, the inner end of the clamping plate 11 close to the insertion plate 8 is rotatably provided with a plurality of balls 13, the setting of the balls 13 greatly reduces the friction between the end of the clamping plate 11 and the surface of the insertion plate 8 when the insertion plate 8 moves between the two clamping plates 11, which is beneficial to the movement of the insertion plate 8.

[0036] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or equivalently replace some technical features. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A civil air defense door frame comprising an outer frame body (1) and an inner frame body (2) fixedly installed on one side of the outer frame body (1), characterized in that: The other side of the outer frame (1) is provided with a rubber strip fixing groove (3), the inner frame (2) is perpendicular to the outer frame (1), and a plurality of equally spaced hooks (4) are mounted between the outer frame (1) and the inner frame (2).

2. The civil defense door frame according to claim 1, characterized in that: A plurality of triangular supports (5) are fixedly installed between the outer frame (1) and the inner frame (2).

3. The civil defense door frame according to claim 2, wherein: The triangular support (5) is internally provided with a slot (6), the bottom of the hook (4) is fixedly installed with a connecting plate (7), the bottom of the connecting plate (7) is fixedly installed with a plug-in plate (8), the plug-in plate (8) is inserted into the slot (6), the both sides of the plug-in plate (8) are provided with clamping grooves (9), the both sides of the triangular support (5) are fixedly installed with housings (10) in communication with the slot (6), the clamping plate (11) is slidably installed in the housing (10), the spring (12) is fixedly installed between one end of the clamping plate (11) and the inner wall of the housing (10), and the other end of the clamping plate (11) is inserted into the clamping groove (9).

4. The civil defense door frame according to claim 3, wherein: The upper surface of the clamping plate (11) close to one end of the plug-in plate (8) is provided with a slope structure.

5. The civil defense door frame according to claim 3, wherein: A plurality of ball bearings (13) are rotatably installed in the inside of the clamping plate (11) close to one end of the plug-in plate (8).

6. The civil defense door frame according to claim 3, wherein: The number of hooks (4) is two, the two hooks (4) are symmetrically arranged on the connecting plate (7), and an X-shaped support (14) is fixedly installed between the two hooks (4).

7. The civil defense door frame according to claim 3, wherein: The surface of the bottom of the hook (4) is fixedly installed with a conical sleeve (15), and the bottom of the conical sleeve (15) is welded with the connecting plate (7).