Explosion-proof door capable of being plugged through pressure relief

Abstract

The utility model relates to an anti-explosion door capable of being plugged through pressure relief, which belongs to the technical field of anti-explosion doors and comprises an anti-explosion door frame, an anti-explosion door body is hinged to the inner side of the anti-explosion door frame through hinges, a door assembly is mounted on the front face of the anti-explosion door body, and a pressure relief assembly is mounted in the anti-explosion door body. The pressure relief assembly comprises two pressure relief boxes penetrating through and fixed to the front face of the explosion door body, two equipment boxes penetrating through and fixed to the front face of the explosion door body, air guide impellers fixedly installed on the inner sides of the pressure relief boxes, and pressure relief pipes fixedly installed at the output ends of the air guide impellers. The air inlet pipe is fixedly installed at the input end of the air guide impeller, the supporting block is fixed to the inner bottom wall of the equipment box, and the lead screw is rotationally connected between the back face of the supporting block and the corresponding inner rear side wall of the equipment box through a bearing. According to the explosion-proof door capable of being blocked through pressure relief, the safety of technicians during operation can be improved, and pressure relief work can be normally and effectively conducted.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof doors, in particular to an explosion-proof door capable of pressure relief and sealing. Background Art

[0002] Explosion-proof doors are explosion-proof protective equipment designed to resist accidental explosions of equipment outside industrial buildings, ensure the safety of personnel and the integrity of equipment inside industrial buildings, protect them from the harm of explosion shock waves, and effectively prevent the continuation of explosion hazards.

[0003] According to a sealing and pressure relief structure for a mine explosion-proof door disclosed in Chinese patent publication No. CN219451932U, it includes a mounting block, a fixed plate is provided on the mounting block, a first threaded rod is provided on the top of the fixed plate, a movable plate is provided on the first threaded rod, an arc plate is provided at the bottom of the movable plate, a first gear is provided on the top of the first threaded rod, a second gear is provided on the left side of the first gear, and a transmission shaft is provided on the top of the second gear, a cavity is provided in the middle of the mounting block, an air inlet is provided on the right side of the bottom of the cavity, a connecting shaft is provided on the inner wall of the cavity, a blade is provided on the outer wall of the connecting shaft, and an air outlet is provided on the left side of the top of the cavity. By increasing the pressure between the arc plate and the transmission shaft when the arc plate moves downward, the friction between the arc plate and the transmission shaft is increased, the rotation speed of the transmission shaft is controlled, the speed of the airflow through the cavity is controlled, and the speed of the pressure relief is directly and effectively controlled.

[0004] Although this patent can discharge pressure, it still has certain shortcomings during actual use. During actual operation, after the staff evacuates, professional technicians arrive at the scene and open the air outlet to release pressure by rotating the threaded sleeve. The direction of the air outlet and the direction of operation are the same, which may cause high-speed air to cause harm to the technicians when discharged. In this regard, the present application provides an explosion-proof door that can relieve pressure and seal to solve the above problem. Utility Model Content

[0005] (1) Technical problems solved

[0006] In response to the shortcomings of the existing technology, the utility model provides an explosion-proof door that can relieve pressure and seal. It has the advantages of being able to improve the safety of technicians during operation and being able to perform pressure relief work normally and effectively. It solves the problem that the existing explosion-proof door sealing and pressure relief structure may cause harm to technicians during actual operation, resulting in low safety during actual operation.

[0007] (2) Technical solution

[0008] In order to achieve the above-mentioned purpose of improving the safety of technicians during operation and enabling normal and effective pressure relief work, the utility model provides the following technical solutions: an explosion-proof door capable of pressure relief and sealing, comprising an explosion-proof door frame, an explosion-proof door body hingedly connected to the inner side of the explosion-proof door frame by a hinge, a door assembly installed on the front of the explosion-proof door body, and a pressure relief assembly installed inside the explosion-proof door body;

[0009] The pressure relief assembly includes two pressure relief boxes that are passed through and fixed on the front of the explosion-proof door body, two equipment boxes that are passed through and fixed on the front of the explosion-proof door body, an air guide impeller fixedly installed on the inner side of the pressure relief box, a pressure relief pipe fixedly installed on the output end of the air guide impeller, an air intake pipe fixedly installed on the input end of the air guide impeller, a support block fixed on the bottom wall of the equipment box, a screw rod rotatably connected between the back of the support block and the corresponding rear side wall of the equipment box through a bearing, a moving block threadedly connected to the outside of the screw rod, a connecting rod fixed at one end of the front of the screw rod, an installation shaft fixed at one end of the front of the connecting rod, a fixed plate fixed at the top of the moving block, several corner blocks fixed on the outside of the fixed plate, several connecting columns fixed on the back of the fixed plate, a blocking block fixed between the backs of the corresponding four connecting columns, and an air pressure sensor fixed on the back of the blocking block.

[0010] Furthermore, the top of the equipment box and the bottom of the corresponding pressure relief box are fixedly connected, and a sliding hole for the corresponding fixed plate to slide is provided between the top of the equipment box and the bottom of the corresponding pressure relief box. The inner side of the sliding hole is fixedly connected to a limiting rod passing through the front side of the corresponding fixed plate, and a handwheel is detachably installed on the outer side of the mounting shaft.

[0011] Furthermore, the door assembly includes a door lock fixedly installed between the front of the explosion-proof door body and the front of the explosion-proof door frame, and a display screen fixedly installed on the front of the explosion-proof door body.

[0012] Furthermore, the display screen and the air pressure sensor are electrically connected, and a movable hole corresponding to the position of the corresponding sliding hole is opened at the bottom of the air inlet pipe for the corresponding fixed plate to slide, and the end of the mounting shaft passes through the front of the corresponding equipment box.

[0013] Furthermore, one front end of the pressure relief pipe passes through the front of the pressure relief box and bends upward to extend, and the end of the air intake pipe passes through the back of the pressure relief box.

[0014] Furthermore, one end of the back side of the air intake pipe is open, and the inner side is truncated cone-shaped. The outer shape of the blocking block is truncated cone-shaped and can abut against the back side of the inside of the air intake pipe.

[0015] Furthermore, one end of the front side of the connecting rod passes through the front side of the corresponding support block and is rotatably connected to the inner front side wall of the corresponding equipment box through a bearing. A corner block is fixed on the front and back sides of the fixed plate. The bottom of the corner block is fixedly connected to the top of the movable block. Four connecting columns are fixed on the back side of each of the fixed plates.

[0016] (3) Beneficial effects

[0017] Compared with the prior art, the present invention provides an explosion-proof door that can relieve pressure and seal, which has the following beneficial effects:

[0018] The explosion-proof door capable of pressure relief and sealing can improve the safety of technical personnel during operation through the coordinated use of the explosion-proof door body, door assembly and pressure relief assembly on the inner side of the explosion-proof door frame, and can perform pressure relief work normally and effectively, allowing technical personnel to perform pressure relief operations safely and make a preliminary judgment on the pressure, so that technical personnel can take different operating measures according to actual conditions. At the same time, the pressure relief operation is also very simple, which greatly improves the convenience of pressure relief work, thereby effectively improving the practicality of the explosion-proof door capable of pressure relief and sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a right side cross-sectional schematic diagram of the pressure relief box connection structure in the structure of the present utility model;

[0021] Figure 3 For the utility model structure Figure 2 Schematic diagram of the three-dimensional structure of the fixed plate connection.

[0022] In the figure: 1 explosion-proof door frame, 200 door assembly, 201 door lock, 202 display screen, 300 pressure relief assembly, 301 pressure relief box, 302 equipment box, 303 air guide impeller, 304 pressure relief pipe, 305 air intake pipe, 306 support block, 307 screw rod, 308 moving block, 309 connecting rod, 310 mounting shaft, 311 fixing plate, 312 corner block, 313 connecting column, 314 blocking block, 315 air pressure sensor, 316 sliding hole, 317 limit rod, 318 handwheel, 4 explosion-proof door body. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figures 1 to 3 The utility model provides a technical solution: an explosion-proof door with pressure relief and sealing, comprising an explosion-proof door frame 1, an explosion-proof door body 4 hingedly connected to the inner side of the explosion-proof door frame 1 by a hinge, a door assembly 200 installed on the front of the explosion-proof door body 4, and a pressure relief assembly 300 installed inside the explosion-proof door body 4; through the coordinated use of the explosion-proof door body 4, the door assembly 200 and the pressure relief assembly 300 on the inner side of the explosion-proof door frame 1, the safety of technical personnel during operation can be improved, and the pressure relief work can be carried out normally and effectively, allowing technical personnel to safely perform pressure relief operations, and also to make a preliminary judgment on the pressure, so that technical personnel can take different operating measures according to actual conditions, and at the same time, the pressure relief operation is also very simple, which greatly improves the convenience of pressure relief work, thereby effectively improving the practicality of the explosion-proof door with pressure relief and sealing.

[0025] In this embodiment, the pressure relief assembly 300 is a structure for safely discharging airflow.

[0026] like Figure 1 、 Figure 2 and Figure 3 As shown, the pressure relief assembly 300 includes two pressure relief boxes 301 that are passed through and fixed on the front of the explosion-proof door body 4, two equipment boxes 302 that are passed through and fixed on the front of the explosion-proof door body 4, an air guide impeller 303 fixedly installed on the inner side of the pressure relief box 301, a pressure relief pipe 304 fixedly installed on the output end of the air guide impeller 303, an air inlet pipe 305 fixedly installed on the input end of the air guide impeller 303, a support block 306 fixed to the inner bottom wall of the equipment box 302, and a support block 306 that is rotatably connected to the back of the support block 306 and the inner rear side wall of the corresponding equipment box 302 through a bearing. A screw rod 307 is provided between the screw rod 307, a moving block 308 is threadedly connected to the outside of the screw rod 307, a connecting rod 309 is fixed to the front end of the screw rod 307, a mounting shaft 310 is fixed to the front end of the connecting rod 309, a fixed plate 311 is fixed to the top of the moving block 308, a plurality of corner blocks 312 are fixed to the outside of the fixed plate 311, a plurality of connecting columns 313 are fixed to the back of the fixed plate 311, a blocking block 314 is fixed between the backs of the corresponding four connecting columns 313, and an air pressure sensor 315 is fixedly installed on the back of the blocking block 314.

[0027] It should be noted that the top of the equipment box 302 and the bottom of the corresponding pressure relief box 301 are fixedly connected, and a sliding hole 316 for the corresponding fixed plate 311 to slide is provided between the top of the equipment box 302 and the bottom of the corresponding pressure relief box 301. The inner side of the sliding hole 316 is fixedly connected with a limit rod 317 that passes through the front of the corresponding fixed plate 311. A handwheel 318 is detachably installed on the outer side of the mounting shaft 310. A movable hole for the corresponding fixed plate 311 to slide and corresponding to the position of the corresponding sliding hole 316 is provided at the bottom of the air intake pipe 305, so that the fixed plate 311 can move normally in the corresponding movable hole and the inner side of the sliding hole 316.

[0028] At the same time, the end of the installation shaft 310 passes through the front of the corresponding equipment box 302, so that the handwheel 318 can rotate on the front of the equipment box 302. When the actual pressure is large, the handwheel 318 can be replaced with a servo motor. Specifically, the output shaft of the servo motor and the end of the installation shaft 310 are connected, and the servo motor is fixedly installed on the front of the equipment box 302. Then, the servo motor can be started to control the installation shaft 310 to rotate away from the explosion-proof door body 4, thereby further improving the safety of the work. Remote control can be carried out by wireless control or wired extension line control, and it is an existing public control technology, so I will not elaborate on it.

[0029] In addition, the air guide impeller 303 is a fan device without a power structure, which is used to guide the airflow and can also consume power by pushing the impeller through the airflow. The front end of the pressure relief pipe 304 passes through the front of the pressure relief box 301 and bends upward to extend, so that the pressure relief pipe 304 can discharge the airflow upward, thereby improving the safety of pressure relief. The end of the air intake pipe 305 passes through the back of the pressure relief box 301. The back end of the air intake pipe 305 is open and the inner side is frustum-shaped. The outer shape of the blocking block 314 is frustum-shaped and can be abutted against the back side of the inside of the air intake pipe 305, so that the air intake pipe 305 can provide a channel for airflow to enter. At the same time, the frustum-shaped setting can allow the blocking block 314 to be away from the back side so that the airflow can pass normally.

[0030] In addition, the front end of the connecting rod 309 passes through the front of the corresponding support block 306 and is rotatably connected to the inner front side wall of the corresponding equipment box 302 through a bearing, so that the connecting rod 309 can stably perform transmission and rotation. A corner block 312 is fixed on the front and back of the fixed plate 311. The bottom of the corner block 312 is fixedly connected to the top relative to the movable block 308, so that the pressure applied to the blocking block 314 can be effectively blocked under the support of the corner block 312. Four connecting columns 313 are fixed on the back of each fixed plate 311, so that the blocking block 314 can be stably fixed between the backs of the corresponding four connecting columns 313.

[0031] In this embodiment, the door assembly 200 is a structure used to enable the explosion-proof door body 4 to work normally and facilitate technicians to make preliminary judgments.

[0032] like Figure 1 As shown, the door assembly 200 includes a door lock 201 fixedly installed between the front of the explosion-proof door body 4 and the front of the explosion-proof door frame 1, and a display screen 202 fixedly installed on the front of the explosion-proof door body 4.

[0033] It should be noted that the display screen 202 and the air pressure sensor 315 are electrically connected, so that the display screen 202 can display the data of the air pressure sensor 315, which is convenient for technicians to make preliminary judgments.

[0034] The working principle of the above embodiment is:

[0035] When the airflow is blocked, the explosion-proof door body 4 is closed and locked by the door lock 201. The airflow on one side of the explosion-proof door body 4 will be blocked. Under the action of the air pressure sensor 315, the air pressure data can be preliminarily sensed and displayed on the display screen 202. When the relevant technical personnel arrive at the scene, they can make a preliminary judgment on the current air pressure through the data on the display screen 202. Turn the hand wheel 318 to rotate the mounting shaft 310 and drive the connecting rod 309 and the screw rod 307 to rotate. Under the limiting action of the limiting rod 317, the moving block 308 can drive the fixing plate 309 under the action of the outer thread rotation thrust of the screw rod 307. 11 is moved so that the blocking block 314 can be away from the opening of the air inlet pipe 305, so that the airflow outside the explosion-proof door body 4 can enter the interior of the pressure relief box 301 through the air inlet pipe 305, and in the process of air flow delivery and pushing, the air guide impeller 303 can be driven to move, so as to play a certain guiding role on the flowing airflow, so that it can enter the interior of the pressure relief pipe 304 through the air guide impeller 303 and then be discharged. According to actual conditions, the distance between the blocking block 314 and the opening of the air inlet pipe 305 can be changed, so as to control the area where the airflow enters, thereby achieving the effect of controlling the pressure relief rate, so that the pressure relief work can be carried out easily and simply.

[0036] Compared with the existing technology, the explosion-proof door with pressure relief and sealing can improve the safety of technicians during operation through the coordinated use of the explosion-proof door body 4 on the inner side of the explosion-proof door frame 1, the door assembly 200 and the pressure relief assembly 300, and can perform pressure relief work normally and effectively, allowing technicians to perform pressure relief operations safely, and can also make a preliminary judgment on the pressure, so that technicians can take different operating measures according to actual conditions. At the same time, the pressure relief operation is also very simple, which greatly improves the convenience of the pressure relief work, thereby effectively improving the practicality of the explosion-proof door with pressure relief and sealing, and solves the problem that the existing explosion-proof door with sealing and pressure relief structure may cause harm to technicians during actual operation, resulting in low safety during actual operation.

[0037] The electrical components appearing in this article are all electrically connected to the main controller and the power supply. The power supply can be a power supply device at the work site. The provision of power is common knowledge in this field. The main controller can be a conventional known device such as a PLC controller that plays a control role. It can be implemented through simple programming by technicians in this field. They are all existing publicly available power connection technologies and will not be described in detail in this article.

[0038] It should be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not preclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0039] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. An explosion-proof door capable of pressure relief and sealing, comprising an explosion-proof door frame (1), characterized in that: An explosion-proof door body (4) is hingedly connected to the inner side of the explosion-proof door frame (1), a door assembly (200) is installed on the front side of the explosion-proof door body (4), and a pressure relief assembly (300) is installed inside the explosion-proof door body (4); The pressure relief assembly (300) comprises two pressure relief boxes (301) passing through and fixed on the front of the explosion-proof door body (4), two equipment boxes (302) passing through and fixed on the front of the explosion-proof door body (4), an air guide impeller (303) fixedly installed on the inner side of the pressure relief box (301), a pressure relief pipe (304) fixedly installed on the output end of the air guide impeller (303), an air inlet pipe (305) fixedly installed on the input end of the air guide impeller (303), a support block (306) fixed on the inner bottom wall of the equipment box (302), and a screw rod rotatably connected between the back of the support block (306) and the inner rear side wall of the corresponding equipment box (302) through a bearing. (307), a moving block (308) threadedly connected to the outside of the screw rod (307), a connecting rod (309) fixed to one end of the front face of the screw rod (307), a mounting shaft (310) fixed to one end of the front face of the connecting rod (309), a fixing plate (311) fixed to the top of the moving block (308), a plurality of corner blocks (312) fixed to the outside of the fixing plate (311), a plurality of connecting columns (313) fixed to the back of the fixing plate (311), a blocking block (314) fixed between the backs of the corresponding four connecting columns (313), and an air pressure sensor (315) fixedly mounted on the back of the blocking block (314).

2. The explosion-proof door capable of pressure relief and sealing according to claim 1, characterized in that: The top of the equipment box (302) is fixedly connected to the bottom of the corresponding pressure relief box (301); a sliding hole (316) for the corresponding fixed plate (311) to slide is provided between the top of the equipment box (302) and the bottom of the corresponding pressure relief box (301); a limiting rod (317) penetrating the front of the corresponding fixed plate (311) is fixedly connected to the inner side of the sliding hole (316); and a hand wheel (318) is detachably installed on the outer side of the installation shaft (310).

3. The explosion-proof door capable of pressure relief and sealing according to claim 2, characterized in that: The door assembly (200) comprises a door lock (201) fixedly mounted between the front of the explosion-proof door body (4) and the front of the explosion-proof door frame (1), and a display screen (202) fixedly mounted on the front of the explosion-proof door body (4).

4. The explosion-proof door capable of pressure relief and sealing according to claim 3, characterized in that: The display screen (202) and the air pressure sensor (315) are electrically connected. A movable hole for sliding the corresponding fixed plate (311) and corresponding to the position of the corresponding sliding hole (316) is opened at the bottom of the air inlet pipe (305). The end of the mounting shaft (310) passes through the front of the corresponding equipment box (302).

5. The explosion-proof door capable of pressure relief and sealing according to claim 1, characterized in that: One front end of the pressure relief pipe (304) passes through the front of the pressure relief box (301) and bends upward to extend, and the end of the air inlet pipe (305) passes through the back of the pressure relief box (301).

6. The explosion-proof door capable of pressure relief and sealing according to claim 1, characterized in that: One end of the back side of the air inlet pipe (305) is open, and the inner side is truncated cone-shaped. The blocking block (314) has a truncated cone-shaped outer shape and can abut against the back side of the inside of the air inlet pipe (305).

7. The explosion-proof door capable of pressure relief and sealing according to claim 1, characterized in that: One end of the front side of the connecting rod (309) passes through the front side of the corresponding supporting block (306) and is rotatably connected to the inner front side wall of the corresponding equipment box (302) through a bearing. A corner block (312) is fixed on the front and back sides of the fixed plate (311). The bottom of the corner block (312) is fixedly connected to the top of the movable block (308). Four connecting columns (313) are fixed on the back side of each fixed plate (311).

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