A type of lightweight explosion-proof door for home use

Abstract

This utility model relates to a lightweight explosion-proof door for household use, including a door frame and a door leaf. The door frame includes a first side door frame and a second side door frame arranged vertically, and an upper door frame and a lower door frame arranged horizontally between the first side door frame and the second side door frame. The door leaf is hinged to the first side door frame. Multiple fixed anti-pry pins are arranged vertically at intervals on the side of the door leaf closest to the first side door frame, and a movable anti-pry pin is arranged on the side of the door leaf closest to the second side door frame. An explosion-proof lock connected to the movable anti-pry pin is also provided on the side of the door leaf closest to the second side door frame. Rotating the explosion-proof lock controls the extension and retraction of the movable anti-pry pin. Multiple reinforcing square tubes are provided inside the door leaf, and the reinforcing square tubes are welded and fixed to the interior of the door leaf. This utility model uses fixed and movable anti-pry pins between the door leaf and the door frame to strengthen the connection strength and anti-theft capability between the door leaf and the door frame, and the reinforcing square tubes further enhance the overall resistance of the door leaf.

Description

Technical Field

[0001] This utility model relates to the field of explosion-proof door technology, and in particular to a household lightweight explosion-proof door. Background Technology

[0002] In the existing technology, explosion-proof doors on the market are generally made of double-layer metal with filling material sandwiched in between, and have a single function. Many explosion-proof doors are made of composite materials of inner fireproof steel plate, fireproof material plate and outer fireproof steel plate. Although this type of security door can play a certain role in fire prevention and explosion prevention, it is easy to deform when encountering fire or explosion, and the upper limit of the explosive shock wave it can withstand is relatively low. For example, Chinese patent application number CN201410381163.9 discloses a method for manufacturing a luxury fireproof and explosion-proof door, including a door leaf, a decorative panel and a door frame. The four sides of the door leaf are wrapped with square tubes, and the square tubes are filled with thick carbon fiber board and high-strength PE non-woven stitching layer with unidirectional cloth. The door leaf is sealed with metal plate and flame-retardant multilayer board on both sides. The decorative panel is attached to the outside of the flame-retardant multilayer board. The door frame is wrapped around the top and bottom ends of the door leaf. The square tubes on the left and right sides of the door leaf are sealed with flame-retardant solid wood strips.

[0003] This fireproof and explosion-proof door has fireproof materials installed on the outside and inside of the door leaf, and square tubes are wrapped around the four sides of the door leaf. However, it has the following defects: First, although the inside of the door leaf is filled with fireproof materials, the internal strength of the door leaf itself is insufficient, and it cannot ensure that the door leaf can maintain its integrity when subjected to pressure or impact. Second, there is no reinforced connection between the door leaf and the door frame, which cannot ensure the anti-theft capability of the door leaf during use, and the door frame cannot improve the door leaf's resistance to external impacts when subjected to impacts. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a lightweight explosion-proof door for home use with strong impact resistance. It not only sets up a reinforcing square tube inside the door leaf to improve the overall strength of the door frame, but also sets a fixed anti-pry pin and a movable anti-pry pin between the door leaf and the door frame to improve the connection strength between the door leaf and the door frame.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A household lightweight explosion-proof door includes a door frame and a door leaf. The door frame includes a first side door frame and a second side door frame arranged vertically, and an upper door frame and a lower door frame arranged horizontally between the first side door frame and the second side door frame. The door leaf is hinged to the first side door frame. On the side of the door leaf near the first side door frame, a plurality of fixed anti-pry pins are arranged vertically at intervals. On the side of the door leaf near the second side door frame, a movable anti-pry pin is provided. On the side of the door leaf near the second side door frame, an explosion-proof lock connected to the movable anti-pry pin is also provided. Rotating the explosion-proof lock can control the extension and retraction of the movable anti-pry pin. The interior of the door leaf is provided with a plurality of reinforcing square tubes, which are welded and fixed to the interior of the door leaf.

[0007] Furthermore, the first side door frame has anti-pry holes spaced vertically along the side near the door leaf for each fixed anti-pry pin to be inserted into.

[0008] Furthermore, the movable anti-pry pin includes an anti-pry pin head and a movable connecting rod, and a guide sleeve is provided on the outer side of the anti-pry pin head.

[0009] Furthermore, the explosion-proof lock includes a steering screw and a handle, and the movable connecting rod is connected to the steering screw. Rotating the handle drives the steering screw, thereby realizing the movement of the movable anti-pry pin in the horizontal direction.

[0010] Furthermore, the lower end of the upper door frame and the upper end of the lower door frame are respectively provided with a slot along their length direction, and a sealing element is provided on the left and right sides of the slot. The upper and lower ends of the door leaf are respectively provided with a sealing groove that seals with the sealing element on the left and right sides of the side near the door frame.

[0011] Furthermore, a reinforcing frame is provided on the left and right sides of the upper and lower ends of the door leaf.

[0012] Furthermore, the reinforcing square tubes are evenly spaced at the top and bottom ends of the door leaf along the horizontal direction and evenly spaced at the left and right sides of the door leaf along the vertical direction.

[0013] Furthermore, the thickness of the door leaf is not less than 1mm, and the thickness of the door frame is not less than 2mm.

[0014] Furthermore, the door leaf is hinged and fixed to the first side door frame by multiple hinges, which are spaced apart in the vertical direction.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] First, the door leaf of this utility model is provided with a reinforcing frame around its four sides, and reinforcing square tubes are evenly spaced at the top and bottom ends and left and right sides inside the door leaf, which improves the overall strength and rigidity of the door leaf, thereby giving it strong explosion-proof performance and ensuring its ability to resist external impacts.

[0017] Secondly, fixed anti-pry pins and movable anti-pry pins are installed on the left and right sides of the door leaf, respectively, between the first and second side door frames. The explosion-proof lock is connected to the movable anti-pry pin, and the explosion-proof lock can control the extension and retraction of the movable anti-pry pin. The door frame and the door leaf are integrated into one piece, which further improves the strength and rigidity of the door leaf, thereby further improving its explosion-proof performance.

[0018] Finally, the upper and lower door frames are provided with slots on the side near the door leaf. Seals are provided on the left and right sides of the slots. When the upper and lower ends of the door leaf are inserted into the slots, the seals contact the door leaf to ensure the sealing between the door frame and the door leaf. Attached Figure Description

[0019] Figure 1 This is a front view of a household lightweight explosion-proof door according to this utility model.

[0020] Figure 2 This is a left-side view of a household lightweight explosion-proof door according to this utility model.

[0021] Figure 3 This is a cross-sectional view of the door frame of this utility model.

[0022] Figure 4 This is a cross-sectional schematic diagram of a household lightweight explosion-proof door according to this utility model. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the embodiments shown in the accompanying drawings.

[0024] like Figures 1 to 4 As shown, this utility model provides a household lightweight explosion-proof door, including a door frame 1 and a door leaf 2. The door frame 1 includes a first side door frame 11 and a second side door frame 12 arranged vertically, and an upper door frame 13 and a lower door frame 14 arranged horizontally between the first side door frame 11 and the second side door frame 12. The door leaf 2 is hinged to the first side door frame 11. On the side of the door leaf 2 near the first side door frame 11, a plurality of fixed anti-pry pins 3 are arranged vertically at intervals. On the side of the door leaf 2 near the second side door frame 12, a movable anti-pry pin 4 is arranged. The fixed anti-pry pins 3 and the movable anti-pry pins 4 add multiple security features to the door leaf 2, and have the functions of anti-theft and anti-violent intrusion. On the side of the door leaf 2 near the second side door frame 12, an explosion-proof lock 5 connected to the movable anti-pry pin 4 is also provided. Rotating the explosion-proof lock 5 can control the extension and retraction of the movable anti-pry pin 4. The interior of the door leaf 2 is provided with a plurality of reinforcing square tubes 21, which are welded and fixed to the interior of the door leaf 2.

[0025] In this embodiment, the first side door frame 11 is provided with anti-pry holes 111 at intervals along the vertical direction on the side near the door leaf 2, for each fixed anti-pry pin 3 to be inserted and cooperate.

[0026] In this embodiment, the movable anti-pry pin 4 includes an anti-pry pin head 41 and a movable connecting rod 42. A guide sleeve 43 is provided on the outer side of the anti-pry pin head 41 to ensure that the anti-pry pin head 41 can maintain smooth movement when it extends and retracts in the horizontal direction.

[0027] In this embodiment, the explosion-proof lock 5 includes a steering screw 51 and a handle 52. The movable connecting rod 42 is connected to the steering screw 51. Rotating the handle 52 drives the steering screw 51, thereby realizing the movement of the movable anti-pry pin 4 in the horizontal direction.

[0028] In this embodiment, a slot 15 is provided at the lower end of the upper door frame 13 and the upper end of the lower door frame 14 along their length direction. A sealing element 16 is provided on the left and right sides of the slot 15. The sealing element 16 adopts an airbag-type EPDM sealing strip with good compression rebound, which can maintain good elasticity and sealing performance under high temperature conditions. A sealing groove 22 is provided at the left and right ends of the upper and lower ends of the door leaf 2 near the side of the door frame 1, which is sealed and matched with the sealing element 16 to ensure the sealing performance at the joint between the door frame 1 and the door leaf 2. The excellent airtightness prevents harmful gases from seeping into the interior.

[0029] In this embodiment, a reinforcing frame 23 is provided on the left and right sides of the upper and lower ends of the door leaf 2. The reinforcing frame 23 is welded and fixed to the inside of the door leaf 2 around the perimeter, thereby improving the overall strength of the door leaf 2 and enhancing the impact resistance of the explosion-proof door.

[0030] In this embodiment, the reinforcing square tubes 21 are evenly spaced at the upper and lower ends of the door leaf 2 in the horizontal direction and evenly spaced at the left and right sides of the door leaf 2 in the vertical direction. Through the welding process holes designed in the door leaf 2, the reinforcing square tubes 21 are welded to the door leaf 2 to form a whole. The reinforcing square tubes 21 fix the front and rear door panels of the door leaf 2, which greatly improves the overall strength of the door leaf 2 and ensures that the door leaf 2 has a stronger resistance to external impacts.

[0031] In this embodiment, both the door frame 1 and the door leaf 2 are made of high-quality steel and bent into shape, which has excellent high temperature resistance and heat insulation performance. While ensuring strength, the overall weight is reduced and the load-bearing capacity of the explosion-proof door is improved. The thickness of the door leaf 2 is not less than 1mm, the thickness of the door frame 1 is not less than 2mm, and it has strong anti-theft performance.

[0032] In this embodiment, the door leaf 2 and the first side door frame 11 are hinged and fixed by multiple hinges 24, and the multiple hinges 24 are spaced apart in the vertical direction.

[0033] The above description is merely a preferred embodiment of the present utility model and should not be construed as limiting the scope of the present utility model. Any simple equivalent changes and modifications made in accordance with the scope of the present utility model patent application and the description of the utility model shall still fall within the scope of the present utility model patent.

Claims

1. A domestic light-weight explosion door comprising a door frame and a door leaf, the door frame comprising a first side door frame and a second side door frame arranged in a vertical direction and an upper door frame and a lower door frame arranged in a horizontal direction between the first side door frame and the second side door frame, characterized in that: The door leaf is hinged to the first side door frame. The side of the door leaf closest to the first side door frame is provided with multiple fixed anti-pry pins at vertical intervals. The side of the door leaf closest to the second side door frame is provided with a movable anti-pry pin. The side of the door leaf closest to the second side door frame is also provided with an explosion-proof lock connected to the movable anti-pry pin. Rotating the explosion-proof lock can control the extension and retraction of the movable anti-pry pin. The interior of the door leaf is provided with multiple reinforcing square tubes, which are welded and fixed to the interior of the door leaf.

2. A domestic light weight explosion vent according to claim 1, characterised in that: The first side door frame has anti-pry holes spaced vertically along the side near the door leaf, for each fixed anti-pry pin to be inserted and engaged.

3. A domestic light weight explosion vent according to claim 2, wherein: The movable anti-pry pin includes an anti-pry pin head and a movable connecting rod, and a guide sleeve is provided on the outer side of the anti-pry pin head.

4. A domestic light weight explosion vent according to claim 3 wherein: The explosion-proof lock includes a steering screw and a handle. The movable connecting rod is connected to the steering screw. Rotating the handle drives the steering screw, thereby realizing the movement of the movable anti-pry pin in the horizontal direction.

5. A light weight home use explosion door according to claim 1, characterized in that: The lower end of the upper door frame and the upper end of the lower door frame are each provided with a slot along their length. A sealing element is provided on the left and right sides of the slot. The upper and lower ends of the door leaf are provided with a sealing groove on the left and right sides of the side of the door frame that is in sealing cooperation with the sealing element.

6. A domestic light weight explosion vent according to claim 5 wherein: The door leaf has a reinforcing frame on the left and right sides at both the top and bottom ends.

7. A domestic light weight explosion vent according to claim 6 wherein: The reinforcing square tubes are evenly spaced at the top and bottom ends of the door leaf in the horizontal direction and evenly spaced at the left and right sides of the door leaf in the vertical direction.

8. A domestic light weight explosion vent according to claim 7, wherein: The thickness of the door leaf is not less than 1mm, and the thickness of the door frame is not less than 2mm.

9. A light weight home use explosion door according to claim 2, characterized in that: The door leaf is fixed to the first side door frame by multiple hinges, which are spaced apart along the vertical direction.

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