Buffering energy-absorbing structure of steel anti-knock door for petrochemical industry

Abstract

The utility model discloses a buffering and energy-absorbing structure of a steel anti-knock door for petrochemical industry, relates to the technical field of anti-knock doors, and aims to solve the technical problems that an existing steel anti-knock door is insufficient in buffering and energy-absorbing performance, explosion impact force is inconvenient to effectively absorb, and the steel anti-knock door is easy to deform and damage. Comprising a fixed door body, a buffer door body and a buffer mechanism arranged in the fixed door body, a first mounting cavity is formed in the front end of the fixed door body, the buffer door body is mounted at the front end of the fixed door body, the buffer mechanism comprises mounting rods mounted in the first mounting cavity at equal intervals, buffer springs are symmetrically arranged on the mounting rods, and the buffer springs are arranged in the first mounting cavity. And compression rings are symmetrically arranged on the mounting rod. The steel anti-knock door has the advantages that the steel anti-knock door can be buffered and absorbed energy for many times, explosion impact force borne by the steel anti-knock door can be effectively absorbed, the possibility that the door body deforms and is damaged due to explosion impact is greatly reduced, and therefore the service life of the steel anti-knock door is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of explosion-proof door technology, and more specifically, to a buffer energy-absorbing structure for steel explosion-proof doors used in the petrochemical industry. Background Technology

[0002] Steel blast-resistant doors are special doors made primarily of steel, possessing high strength and excellent impact resistance. Their robust structure, coupled with specialized hardware and sealing materials, effectively withstands the shockwaves and debris generated by explosions. Commonly used in petrochemical, military, and nuclear power plants and other locations with explosion risks, they ensure personnel safety and facility integrity, providing a reliable safety barrier for critical areas.

[0003] Steel blast-resistant doors are primarily used to withstand explosive impacts. However, current steel blast-resistant doors lack sufficient energy absorption capacity. The main solution involves filling the steel door with concrete, perlite, or similar materials to increase its strength, but this is ineffective at absorbing explosive forces and easily leads to deformation and damage. Therefore, we propose a buffer energy absorption structure for steel blast-resistant doors used in the petrochemical industry. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a buffer energy absorption structure for steel explosion-proof doors used in the petrochemical industry, so as to solve the technical problems of insufficient buffer energy absorption performance of current steel explosion-proof doors, which makes it inconvenient to effectively absorb the impact force of explosions and easily causes deformation and damage to steel explosion-proof doors.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a buffer energy-absorbing structure for a steel explosion-proof door used in the petrochemical industry, comprising a fixed door body and a buffer door body, and a buffer mechanism disposed within the fixed door body. The front end of the fixed door body is provided with a first mounting cavity, the buffer door body is mounted on the front end of the fixed door body, the rear end of the buffer door body is provided with a second mounting cavity, and a filling cavity is disposed within the buffer door body. The buffer mechanism includes mounting rods equidistantly mounted within the first mounting cavity, buffer springs symmetrically arranged on the mounting rods, and compression rings symmetrically arranged on the mounting rods, the compression rings being connected to the buffer springs.

[0006] Preferably, the front end of the fixed door body is provided with positioning grooves on both sides of the first mounting cavity, and positioning plates are symmetrically arranged in the second mounting cavity, with the positioning plates inserted into the positioning grooves.

[0007] Preferably, the two ends of the mounting rod are straight rods, and the mounting rod is arranged in an arc shape that bends forward from both ends toward the middle, and the overall shape of the mounting rod is bow-shaped.

[0008] Preferably, a pressure rod is installed at the front end of the compression ring, the pressure rod is bent twice along the long axis, and the end of the pressure rod is rotatably connected to the buffer door.

[0009] Preferably, a buffer opening is provided at the middle of the front end of the mounting rod, and a first elastic metal rod is installed on the side end of the compression ring, the first elastic metal rod being located inside the buffer opening.

[0010] Preferably, a second elastic metal rod is installed at equal intervals in the second mounting cavity. The second elastic metal rod is located in the buffer opening and is in contact with the first elastic metal rod. The first and second elastic metal rods are curved in an arch shape along their long axis.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model, through the design of a buffer spring, a first elastic metal rod, and a second elastic metal rod structure, allows the pressure rod to rotate and push the compression ring when subjected to an explosive impact, compressing the buffer spring. This directly absorbs and buffers a portion of the impact force, providing initial buffering. The first and second elastic metal rods are compressed by the buffer door body, undergoing elastic deformation. Their arched structure disperses and transmits external force along the curve of the arch, allowing the entire metal rod to share the force, avoiding excessive local stress, and further absorbing the impact force. Working together with the buffer spring, multiple buffering and energy absorption are achieved, effectively absorbing the explosive impact force on the steel explosion-proof door. This significantly reduces the possibility of deformation and damage to the door body due to the explosive impact, thereby improving the service life of the steel explosion-proof door. It solves the problem of insufficient buffering and energy absorption performance of current steel explosion-proof doors, which makes it difficult to effectively absorb explosive impact forces and easily causes deformation and damage to the steel explosion-proof door.

[0013] 2. This utility model also improves upon the design of the mounting rod structure by creating a mounting rod that bends forward from both ends toward the middle in an arc shape. This increases the length of the mounting rod within a limited space. At the same time, the forward bend facilitates the compression ring's compression of the buffer spring, reducing friction on the mounting rod caused by the movement of the compression ring. Attached Figure Description

[0014] Figure 1 This is a front view structural diagram of the present utility model;

[0015] Figure 2 This is a frontal sectional view of the present invention.

[0016] Figure 3 This is a side view sectional structural diagram of the present invention;

[0017] Figure 4This is a schematic diagram of the fixed door structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the buffer mechanism structure of this utility model;

[0019] Figure 6 This is a schematic diagram of the buffer door structure of this utility model.

[0020] The following are the labels in the diagram: 101, Fixed door body; 102, Buffer door body; 103, Filling cavity; 104, Positioning groove; 105, First mounting cavity; 106, Second mounting cavity; 107, Positioning plate; 200, Buffer mechanism; 201, Mounting rod; 202, Buffer spring; 203, Buffer opening; 204, Compression ring; 205, First elastic metal rod; 206, Second elastic metal rod; 207, Pressure rod. Detailed Implementation

[0021] like Figures 1 to 6 As shown, this utility model relates to a buffer energy-absorbing structure for steel explosion-proof doors used in the petrochemical industry. It includes a fixed door body 101, a buffer door body 102, and a buffer mechanism 200 disposed within the fixed door body 101. A first mounting cavity 105 is provided at the front end of the fixed door body 101. The buffer door body 102 is mounted at the front end of the fixed door body 101, and a second mounting cavity 106 is provided at the rear end of the buffer door body 102. A filling cavity 103 is provided inside the buffer door body 102. The buffer mechanism 200 includes mounting rods 201 equidistantly mounted within the first mounting cavity 105. Buffer springs 202 are symmetrically arranged on the mounting rods 201, and compression rings 204 are symmetrically arranged on the mounting rods 201. The compression rings 204 are connected to the buffer springs 202. This utility model can buffer and absorb energy multiple times for steel explosion-proof doors, effectively absorbing the explosive impact force received by the steel explosion-proof door, greatly reducing the possibility of deformation and damage to the door body due to explosive impact, thereby improving the service life of the steel explosion-proof door.

[0022] Specifically, the front end of the fixed door 101 has positioning grooves 104 on both sides of the first mounting cavity 105, and positioning plates 107 are symmetrically arranged in the second mounting cavity 106, with the positioning plates 107 inserted into the positioning grooves 104. The positioning plates 107 and positioning grooves 104 ensure the accuracy and stability of the installation of the buffer door 102 and the fixed door 101, enabling them to work together better when subjected to impact, thus ensuring the overall performance of the buffer energy absorption structure.

[0023] Furthermore, the two ends of the mounting rod 201 are straight rods, and the mounting rod 201 is designed to bend forward in an arc shape from both ends towards the middle, giving the overall shape of the mounting rod 201 an arc shape. The forward-bending arc shape of the mounting rod 201 from both ends towards the middle increases its length within a limited space. Simultaneously, the forward bend facilitates the compression ring 204's compression of the buffer spring 202, reducing friction on the mounting rod 201 caused by the movement of the compression ring 204.

[0024] It is worth noting that a pressure rod 207 is installed at the front end of the compression ring 204. The pressure rod 207 is bent twice along its long axis, and its end is rotatably connected to the buffer door 102. When transmitting the pressure of the buffer door 102, the pressure rod 207 can transmit the force to the compression ring 204 and the buffer spring 202 through its own rotation, which can directly absorb and buffer a part of the impact force, playing a preliminary buffering role.

[0025] It is worth mentioning that a buffer opening 203 is provided at the middle of the front end of the mounting rod 201, through which the mounting rod 201 passes. A first elastic metal rod 205 is installed on the side end of the compression ring 204, and the first elastic metal rod 205 is located inside the buffer opening 203. The buffer opening 203 facilitates the installation of the first elastic metal rod 205 and the second elastic metal rod 206.

[0026] It is worth noting that second elastic metal rods 206 are equidistantly installed within the second mounting cavity 106. These second elastic metal rods 206 are located within the buffer opening 203 and are in contact with the first elastic metal rod 205. The first and second elastic metal rods 205 and 206 are curved along their long axis, forming an arch. The first and second elastic metal rods 205 and 206 will be compressed by the buffer door 102, undergoing elastic deformation. Their arched structure can disperse and transmit external forces along the curve of the arch, allowing the entire metal rod to share the force, preventing excessive localized stress, and further absorbing impact.

[0027] Working Principle: This embodiment provides a buffer energy-absorbing structure for steel explosion-proof doors used in the petrochemical industry. When the steel explosion-proof door is subjected to an explosion impact, the buffer door body 102 bears the main explosion impact force, causing the buffer door body 102 to be squeezed against the fixed door body 101. At this time, the pressure rod 207 will rotate, thereby pushing the compression ring 204 to compress the buffer spring 202 for buffer energy absorption. At the same time, the buffer door body 102 will squeeze the first elastic metal rod 205, and the second elastic metal rod 206 can buffer the pressure on the first elastic metal rod 205. Both the first elastic metal rod 205 and the second elastic metal rod 206 will... When subjected to pressure, the metal rod undergoes elastic deformation. The arched structure can disperse and transmit the external force along the curve of the arch. The force is transmitted to both ends along the shape of the arch, so that the entire metal rod bears the force, avoiding excessive local stress. This allows it to more effectively withstand and buffer external forces. The two ends of the first elastic metal rod 205 extend to both sides, thereby pushing the compression ring 204 to compress the buffer spring 202 for buffering and energy absorption. Through multiple buffering and energy absorption, it can effectively absorb the explosive impact force received by the steel explosion-proof door, preventing deformation and damage to the steel explosion-proof door caused by the explosion impact, and improving the service life of the steel explosion-proof door.

[0028] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A buffer energy-absorbing structure for steel explosion-proof doors used in the petrochemical industry, characterized in that, The device includes a fixed door body (101) and a buffer door body (102), and a buffer mechanism (200) disposed within the fixed door body (101). The front end of the fixed door body (101) is provided with a first mounting cavity (105). The buffer door body (102) is installed at the front end of the fixed door body (101). The rear end of the buffer door body (102) is provided with a second mounting cavity (106). The buffer door body (102) is provided with a filling cavity (103). The buffer mechanism (200) includes mounting rods (201) equidistantly installed within the first mounting cavity (105). Buffer springs (202) are symmetrically arranged on the mounting rods (201). Compression rings (204) are symmetrically arranged on the mounting rods (201). The compression rings (204) are connected to the buffer springs (202).

2. The buffer energy-absorbing structure for a steel explosion-proof door used in the petrochemical industry according to claim 1, characterized in that, The front end of the fixed door body (101) is provided with positioning grooves (104) on both sides of the first mounting cavity (105), and positioning plates (107) are symmetrically arranged in the second mounting cavity (106), and the positioning plates (107) are inserted into the positioning grooves (104).

3. The buffer energy-absorbing structure for a steel explosion-proof door used in the petrochemical industry according to claim 2, characterized in that, The two ends of the mounting rod (201) are straight rods, and the mounting rod (201) is curved forward from both ends to the middle in an arc shape. The overall shape of the mounting rod (201) is bow-shaped.

4. The buffer energy-absorbing structure for a steel explosion-proof door used in the petrochemical industry according to claim 3, characterized in that, A pressure rod (207) is installed at the front end of the compression ring (204). The pressure rod (207) is bent twice along the long axis. The end of the pressure rod (207) is rotatably connected to the buffer door (102).

5. The buffer energy-absorbing structure for a steel explosion-proof door used in the petrochemical industry according to claim 4, characterized in that, The mounting rod (201) has a buffer opening (203) at the middle of its front end, and a first elastic metal rod (205) is installed on the side end of the compression ring (204), which is located inside the buffer opening (203).

6. The buffer energy-absorbing structure for a steel explosion-proof door used in the petrochemical industry according to claim 5, characterized in that, The second elastic metal rod (206) is installed at equal intervals in the second mounting cavity (106). The second elastic metal rod (206) is located in the buffer opening (203) and is in contact with the first elastic metal rod (205). The first elastic metal rod (205) and the second elastic metal rod (206) are curved in an arc shape along the long axis direction and are arranged in an arch shape.

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