A warehouse closure door and handle therefor

Abstract

The application discloses a warehouse sealing door and a handle thereof, relates to the technical field of sealing doors, and comprises a door frame, a first door body rotatably connected to the inner cavity of the door frame, and a second door body arranged in the inner cavity of the door frame and slidably connected to the first door body. The top end of the first door body is provided with a rotating assembly, the outer surface of the door frame is fixedly provided with a limiting assembly, and the inner walls of the two sides of the door frame are provided with sealing assemblies. When a fire breaks out, the handle assembly drives the alarm mechanism to issue an alarm due to the change of indoor pressure, reminding the staff to take timely measures to avoid the spread of the fire. The two doors are quickly opened through the rotating assembly, and the doors are prevented from sliding under the action of the limiting assembly, so that the sliding of the doors when entering or leaving the warehouse is avoided. The sealing assembly makes the sealing strips between the door and the door frame closely adhere to each other, and prevents the spread of the fire when the fire breaks out.

Description

Technical Field

[0001] The present application relates to the technical field of sealed doors, and in particular to a storage sealed door and a handle thereof. Background Art

[0002] Warehousing is the storage and safekeeping of goods and items in warehouses. "Warehouse" is a general term for buildings and sites used to store, keep, and store items. These can be buildings, caves, large containers, or specific locations, and are used to store and protect items. "Chu" (to store or reserve) signifies the collection and storage of items for future use, encompassing the concept of storage, safekeeping, and delivery. Warehousing typically involves sealed doors to protect items within, facilitating daily access.

[0003] The existing technology still has the following problems:

[0004] 1. Warehouses usually pay great attention to fire prevention, but the current warehouse doors do not have automatic fire alarm function, which makes it difficult to issue an alarm in time after a fire occurs. The fire will not be discovered until the situation is serious, resulting in serious losses of stored goods and even casualties.

[0005] 2. When using existing storage closed doors, it is inconvenient to open only one door for large goods to enter and exit, and it is more time-consuming to open both doors. In addition, the doors are prone to sliding after being opened, which can easily block the transportation of goods when moving them.

[0006] 3. There is a gap between the existing sealed doors and the door frame, resulting in poor sealing. Some sealed doors are equipped with sealing strips between the door and the door frame. After long-term use, the sealing strips are squeezed and the effect becomes worse and worse, affecting the storage of goods. Summary of the Invention

[0007] The present application provides a closed warehouse door and its handle, which solves the problems in the prior art that an alarm cannot be issued in time when a fire occurs, when the door is opened for transporting goods, the sliding of the door affects the entry and exit of the warehouse, and the gap between the door and the door frame is poorly sealed. The application realizes that an automatic alarm can be issued when a fire occurs, and the two doors can be quickly opened and fixed, making it more convenient for goods to enter and exit the warehouse, and the sealing between the door and the door frame is better.

[0008] The present application provides a warehouse sealed door, including a door frame, the inner cavity of the door frame is rotatably connected to the first door body, the inner cavity of the door frame is provided with a second door body, the second door body and the first door body are slidably connected, the top of the first door body is provided with a rotating assembly, the outer surface of the door frame is fixedly installed with a limiting assembly, the inner walls on both sides of the door frame are provided with a sealing assembly, the outer surface of the second door body is fixedly installed with a fixing plate, the outer surface of the fixing plate is fixedly installed with a limiting rod, the rotating assembly includes a connecting plate, the middle part of the connecting plate is provided with a second sliding groove, one end of the second sliding groove is provided with a connecting groove, the upper surface of the first door body is slidably connected to a third slider, the upper surface of the third slider is fixedly installed with a sliding rod, one end of the third slider is fixedly installed with a rack, the bottom end of the connecting plate is fixedly installed with a second fixing rod, and the outer surface of the second fixing rod is fixedly sleeved with a gear.

[0009] Furthermore, a groove is provided at the top of the door frame, the gap of the groove is larger than the diameter of the sliding rod, the third slider is fixedly connected to the second door body, the rack and the gear are meshed, the connecting plate and the door frame are fixedly connected, the second fixed rod and the first door body are rotatably connected, and the gap of the connecting groove is larger than the width of the third slider and the diameter of the sliding rod.

[0010] Furthermore, the limit assembly includes a fixed seat, the two ends of the fixed seat are fixedly installed with a limit seat, the inner cavity of the limit seat is inserted with a pressure rod, the outer surface of the pressure rod is sleeved with a fifth spring, and one end of the fifth spring is fixedly installed with a second limit block.

[0011] Furthermore, the middle position of the fixing seat is at the same height as the limiting rod, the fixing seat is fixedly connected to the door frame, the limiting rod and the second limiting block are engaged when the second door body rotates, and the fifth spring is located between the limiting seat and the second limiting block.

[0012] Furthermore, the sealing assembly includes a clamping strip, which is slidably connected to the inner cavity of the door frame, and the clamping strip is fixedly connected to the inner cavity of the door frame near the sixth spring, and one end of the sixth spring is fixedly connected to the clamping strip, and the other end is fixedly connected to the inner wall of the door frame, and a sealing strip is fixedly installed on the side of the clamping strip away from the sixth spring, and the sealing strip is exposed on the outer surface of the door frame, and the sealing strips on both sides of the door frame are in close contact with the first door body and the second door body when closed.

[0013] A handle for the above-mentioned sealed storage door includes a handle assembly, the handle assembly is fixedly sleeved with a second door body, the handle assembly includes a connecting sleeve, a first handle is sleeved on one side of the connecting sleeve, a second handle is sleeved on the other side of the connecting sleeve, the first handle and the second handle are slidably connected to the upper and lower ends of the first slider, the inner cavity of the connecting sleeve is fixedly sleeved with an alarm mechanism, the outer surface of the first slider is fixedly connected to a connecting strip, the connecting strip is slidably connected to the first handle and the second handle, the first slider on the first handle and the first slider on the second handle are fixedly connected via the connecting strip, a lock tongue is fixedly installed on the outer surface of the connecting sleeve, the inner cavity of the lock tongue is slidably connected to a first limit block, the upper and lower ends of the connecting sleeve are fixedly installed with a fourth spring, one end of the first limit block is fixedly connected to the fourth spring, both sides of the first limit block and the side away from the fourth spring are fixedly installed with connecting rods, the connecting rods on both sides of the first limit block are slidably connected to the first handle and the second handle, the connecting rod on the side of the first limit block away from the fourth spring is fixedly connected to the connecting strip, and a fixing groove is opened in the inner cavity of the door frame, and the fixing groove is engaged with the first limit block.

[0014] Furthermore, the first handle includes a handle block, a baffle is fixedly installed on the outer surface of the handle block, a first fixed rod is fixedly installed on the outer surface of the handle block, a first spring is sleeved on the outer surface of the first fixed rod, a slidable connection is made to the outer surface of the first fixed rod, a dredging disk is fixedly installed on one side of the dredging disk, and a hand dial block is fixedly installed on the side of the dredging disk away from the dredging rod.

[0015] Furthermore, the first spring is located between the handle block and the dredging plate, there is a gap between the dredging rod and the alarm mechanism, the shielding plate is located directly above the end of the alarm mechanism, and the first handle is located inside the warehouse space when installed.

[0016] Furthermore, the alarm mechanism includes a connecting cylinder, one end of the connecting cylinder is provided with a ventilation hole, the inner cavity of the connecting cylinder is slidably connected to a piston block, the side of the piston block away from the ventilation hole is fixedly connected to a second spring, the outer surface of the connecting cylinder is provided with a first sliding groove, the inner cavity of the first sliding groove is slidably connected to a second sliding block, the end of the second spring away from the piston block is fixedly connected to a pressure ring, the end of the pressure ring away from the second spring is fixedly installed with a third spring, the end of the third spring away from the pressure ring is fixedly connected to an extrusion ring, the end of the connecting cylinder away from the ventilation hole is fixedly sleeved with a piston cover, the inner cavity of the piston cover is rotatably connected to a threaded rod, the upper surface of the second sliding block is fixedly installed with a fixing block, the outer surface of the second handle is fixedly installed with a fixing frame, the inner wall of the fixing frame is provided with a button, and the outer surface of the second door body is fixedly installed with an alarm.

[0017] Furthermore, the ventilation hole and the clearing rod are plugged in, the piston cover and the threaded rod are connected by threads, the extrusion ring and the connecting tube are slidingly connected, the top of the fixed block is located in the middle part of the button, the button and the alarm are electrically connected, the button is used to control the alarm of the alarm, and the second slider and the pressure ring are fixedly connected.

[0018] The technical solution provided by this application has at least the following technical effects or advantages:

[0019] 1. The use of the handle assembly effectively solves the problem that warehouses usually pay great attention to fire prevention, but current warehouse doors do not have an automatic fire alarm function, which makes it difficult to issue an alarm in time after a fire occurs. The fire will not be discovered until the situation is serious, resulting in serious losses of stored goods and even casualties. The present invention uses the handle assembly to drive the alarm mechanism to sound an alarm due to the change in indoor pressure when a fire occurs, reminding staff to take timely measures to prevent the spread of fire.

[0020] 2. The use of a rotating assembly effectively solves the problem that when using existing warehouse closed doors, it is inconvenient for large goods to enter and exit when only one door is opened, and it is time-consuming to open both doors. In addition, the doors are prone to sliding after opening, which can easily block the transportation of goods when moving goods. The present invention quickly opens the two doors through the rotating assembly, and prevents the doors from sliding under the action of the limit assembly, thereby avoiding the impact of door sliding on entering and exiting the warehouse.

[0021] 3. The use of the sealing assembly effectively solves the problem of a gap between the door and the door frame of existing sealed doors, resulting in poor sealing. Some sealed doors are provided with a sealing strip between the door and the door frame. After long-term use, the sealing strip is squeezed and the effect becomes worse and worse, affecting the storage of goods. The sealing assembly of the present invention makes the sealing strip between the door and the door frame fit tightly, preventing the spread of fire in the event of a fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of Example 1 of the present application;

[0023] Figure 2 This is a schematic diagram of the second door structure in Example 1 of the present application;

[0024] Figure 3 This is a schematic structural diagram of the sealing assembly in Example 1 of the present application;

[0025] Figure 4 This is a schematic diagram of the structure of the rotating assembly in Example 1 of the present application;

[0026] Figure 5 This is a schematic diagram of the rack structure in Example 1 of the present application;

[0027] Figure 6 This is a schematic diagram of the structure of the limiting component in Example 1 of the present application;

[0028] Figure 7 This is a partial schematic diagram of the sealing assembly structure in Example 1 of the present application;

[0029] Figure 8 This is a schematic diagram of the fixed plate structure in Example 2 of the present application;

[0030] Figure 9 This is a schematic diagram of the structure of the handle assembly in Example 2 of the present application;

[0031] Figure 10 This is Example 2 of the present application Figure 9 A schematic diagram of the structure at center A;

[0032] Figure 11 This is a schematic diagram of the lock tongue structure in Example 2 of the present application;

[0033] Figure 12 This is a schematic diagram of the connecting bar structure in Example 2 of the present application;

[0034] Figure 13 This is Example 2 of the present application Figure 12 A magnified schematic diagram of the structure at B in the middle;

[0035] Figure 14 This is a schematic cross-sectional diagram of the alarm mechanism structure in Example 2 of the present application.

[0036] In the figure: 1. door frame; 2. first door body; 3. second door body; 4. handle assembly; 41. connecting sleeve; 42. first handle; 421. handle block; 422. shielding plate; 423. first fixing rod; 424. first spring; 425. dredging plate; 426. dredging rod; 427. hand dial block; 43. second handle; 44. first slider; 45. alarm mechanism; 451. connecting cylinder; 452. ventilation hole; 453. piston block; 454. second spring; 455. first slide groove; 456. second slider; 457. pressure ring; 458. third spring; 459. extrusion ring; 4510. piston cover; 4511. threaded rod; 4512, fixed block; 4513, fixed frame; 4514, button; 4515, alarm; 46, connecting strip; 47, lock tongue; 48, first limit block; 49, fourth spring; 410, connecting rod; 5, rotating assembly; 51, connecting plate; 52, second slide groove; 53, connecting groove; 54, third slider; 55, slide rod; 56, rack; 57, second fixed rod; 58, gear; 6, limit assembly; 61, fixed seat; 62, limit seat; 63, pressure rod; 64, fifth spring; 65, second limit block; 7, sealing assembly; 71, clamping strip; 72, sixth spring; 73, sealing strip; 8, fixed plate; 9, limit rod. DETAILED DESCRIPTION

[0037] In case that an automatic alarm cannot be sounded when a fire occurs, the present invention uses a handle assembly to promptly sound an alarm when a fire occurs to control the spread of the fire; in case that the door moves when opening, affecting the entry and exit of goods, the present invention uses a rotating assembly and a limiting assembly to quickly open and limit the door, making it more convenient for goods to enter and exit the warehouse; in case that the sealing between the door and the door frame is poor, the present invention uses a sealing assembly to make the door and the door frame fit tightly, preventing early smoke, toxic gases and hot gases from harming the human body during a fire and controlling the spread of the fire.

[0038] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0039] Example 1

[0040] See also Figure 1 、 Figure 2 and Figure 3 As shown, a storage closed door includes a door frame 1, the inner cavity of the door frame 1 is rotatably connected to the first door body 2, the inner cavity of the door frame 1 is provided with a second door body 3, the second door body 3 and the first door body 2 are slidably connected, a rotating component 5 is provided on the top of the first door body 2, the outer surface of the door frame 1 is fixedly installed with a limit component 6, the inner walls on both sides of the door frame 1 are provided with a sealing component 7, the outer surface of the second door body 3 is fixedly installed with a fixing plate 8, the outer surface of the fixing plate 8 is fixedly installed with a limit rod 9, the door frame 1 is connected to the wall when in use, and the second door body 3 is moved in the door by sliding The frame 1 moves to open the second door body 3. At this time, the first door body 2 and the second door body 3 are close to overlapping. When the second door body 3 moves further, the first door body 2 and the second door body 3 are rotated under the action of the rotating component 5, so that the entire space of the door frame 1 is exposed, which is convenient for carrying goods. The limiting rod 9 on the second door body 3 and the limiting component 6 on the door frame 1 will engage when the second door body 3 rotates, fixing the second door body 3 to prevent the first door body 2 and the second door body 3 from moving and affecting the entry and exit of goods into the warehouse.

[0041] See also Figure 3 、 Figure 4 and Figure 5As shown, the rotating assembly 5 includes a connecting plate 51, a second sliding groove 52 is provided in the middle part of the connecting plate 51, a connecting groove 53 is provided at one end of the second sliding groove 52, a third slider 54 is slidably connected to the upper surface of the first door body 2, a sliding rod 55 is fixedly installed on the upper surface of the third slider 54, a rack 56 is fixedly installed at one end of the third slider 54, a second fixed rod 57 is fixedly installed at the bottom end of the connecting plate 51, a gear 58 is fixedly sleeved on the outer surface of the second fixed rod 57, a groove is provided at the top of the door frame 1, the groove gap is larger than the diameter of the sliding rod 55, the third slider 54 is fixedly connected to the second door body 3, the rack 56 and the gear 58 are engaged, the connecting plate 51 is fixedly connected to the door frame 1, the second fixed rod 57 is rotatably connected to the first door body 2, the gap of the connecting groove 53 is larger than the width of the third slider 54 and the diameter of the sliding rod 55, when the first door body 2 and the second door body 3 are opened, When the second door body 3 and the first door body 2 are almost overlapped, the rack 56 and the second fixed rod 57 are meshed, and the gear 58 and the door frame 1 always remain in a relatively fixed state. As a result, during the movement of the rack 56, the rack 56 rotates to drive the first door body 2 and the second door body 3 to rotate, and the slide bar 55 comes out from the connecting groove 53 and the groove on the door frame 1 to prevent the first door body 2 and the second door body 3 from being blocked during rotation. In this way, the first door body 2 and the second door body 3 can be opened. According to actual usage, the second door body 3 can be slid when only one door needs to be opened. If both doors need to be opened, the second door body 3 can be slid to drive the first door body 2 to rotate on the door frame 1, which is convenient for the transportation of goods.

[0042] See also Figure 3 and Figure 6As shown, the limiting assembly 6 includes a fixed seat 61, and the limiting seats 62 are fixedly installed at both ends of the fixed seat 61. A pressure rod 63 is inserted into the inner cavity of the limiting seat 62. The outer surface of the pressure rod 63 is sleeved with a fifth spring 64. A second limiting block 65 is fixedly installed at one end of the fifth spring 64. The middle position of the fixed seat 61 is at the same height as the limiting rod 9. The fixed seat 61 is fixedly connected to the door frame 1. When the second door body 3 rotates, the limiting rod 9 and the second limiting block 65 are engaged. The fifth spring 64 is located between the limiting seat 62 and the second limiting block 65. When the first door body 2 and the second door body 3 are opened, the limiting rod 9 on the second door body 3 and The limit assembly 6 is engaged, and during the rotation of the second door body 3, the limit rod 9 on the fixed plate 8 approaches the limit assembly 6. During the rotation of the second door body 3, the limit rod 9 is inserted between the second limit blocks 65, so that the fifth spring 64 is squeezed toward both ends. At this time, the second limit block 65 is engaged and fixed to the limit rod 9, and the second door body 3 will be fixed to the side of the door frame 1 to prevent the first door body 2 and the second door body 3 from moving when the goods enter and exit the warehouse. By pulling the pressure rod 63 to move the pressure rod 63 on the limit seat 62, the limit rod 9 and the second limit block 65 are disengaged, and the first door body 2 and the second door body 3 can be restored to their original positions.

[0043] See also Figure 3 and Figure 7 As shown, the sealing assembly 7 includes a card strip 71, which is slidably connected to the inner cavity of the door frame 1. The card strip 71 is fixedly connected to the inner cavity of the door frame 1 with a sixth spring 72, and one end of the sixth spring 72 is fixedly connected to the card strip 71, and the other end is fixedly connected to the inner wall of the door frame 1. A sealing strip 73 is fixedly installed on the side of the card strip 71 away from the sixth spring 72. The sealing strip 73 is exposed on the outer surface of the door frame 1. The sealing strips 73 on both sides of the door frame 1 are in close contact with the first door body 2 and the second door body 3 when closed. When the second door body 3 and the door frame 1 are closed, the sealing assembly 7 is squeezed by the first door body 2 and the second door body 3, causing the retaining strip 71 to move in the inner cavity of the door frame 1. The elastic force of the sixth spring 72 squeezes the retaining strip 71 outward, and the first door body 2 and the second door body 3 squeeze the sealing strip 73, so that the sealing strip 73 is in close contact with the first door body 2 and the second door body 3. In the event of a fire, the sealing strip 73 is used to block the cracks in the door and cut off the air circulation between the two spaces, effectively preventing early smoke, toxic gases and hot gases from harming the human body and controlling the spread of fire.

[0044] Example 2

[0045] See also Figure 8 、 Figure 9 and Figure 11As shown, it includes a handle assembly 4, which is fixedly connected to the second door body 3, and the handle assembly 4 includes a connecting sleeve 41. One side of the connecting sleeve 41 is sleeved with a first handle 42, and the other side of the connecting sleeve 41 is sleeved with a second handle 43. The upper and lower ends of the first handle 42 and the second handle 43 are slidably connected with a first slider 44, and the inner cavity of the connecting sleeve 41 is fixedly sleeved with an alarm mechanism 45. The outer surface of the first slider 44 is fixedly connected with a connecting strip 46, and the connecting strip 46 is slidably connected to the first handle 42 and the second handle 43. The first slider 44 on the first handle 42 and the first slider 44 on the second handle 43 are fixedly connected through the connecting strip 46. A lock tongue 47 is fixedly installed on the outer surface of the connecting sleeve 41, and a first limit block 48 is slidably connected to the inner cavity of the lock tongue 47. A fourth spring 49 is fixedly installed at the upper and lower ends of the connecting sleeve 41, and one end of the first limit block 48 is fixedly connected to the fourth spring 49. Both sides of the first limit block 48 and the side away from the fourth spring 49 are fixedly installed with connecting strips. The connecting rod 410 and the connecting rods 410 on both sides of the first limit block 48 are slidably connected to the first handle 42 and the second handle 43. The first limit block 48 is fixedly connected to the connecting rod 410 and the connecting bar 46 on the side away from the fourth spring 49. The inner cavity of the door frame 1 is provided with a fixing groove, and the fixing groove and the first limit block 48 are engaged. During use, the second door body 3 and the door frame 1 are fitted together by the engagement of the first limit block 48 and the fixing groove, that is, the first door body 2 and the second door body 3 are closed. When opening, the first slider 44 is pressed to move the first slider 44 toward the direction of the alarm mechanism 45. At this time, the first slider 44 drives the connecting bar 46 to move. The movement of the connecting bar 46 drives the connecting rod 410 to squeeze the first limit block 48, so that the first limit block 48 is retracted to the inside of the lock tongue 47. At this time, the first limit block 48 is disengaged from the engagement with the fixing groove, and the second door body 3 can be slid from the door frame 1. When closing, the first limit block 48 and the fixing groove are engaged again under the elastic force of the fourth spring 49.

[0046] See also Figure 10As shown, the first handle 42 includes a handle block 421, and a baffle 422 is fixedly installed on the outer surface of the handle block 421, and a first fixed rod 423 is fixedly installed on the outer surface of the handle block 421. The outer surface of the first fixed rod 423 is sleeved with a first spring 424, and the outer surface of the first fixed rod 423 is slidably connected with a dredging disk 425, and a dredging rod 426 is fixedly installed on one side of the dredging disk 425, and a hand dial block 427 is fixedly installed on the side of the dredging disk 425 away from the dredging rod 426. The first spring 424 is located between the handle block 421 and the dredging disk 425, and there is a gap between the dredging rod 426 and the alarm mechanism 45. The baffle 422 is located directly above the end of the alarm mechanism 45. When the first handle 42 is installed, it is located inside the warehouse space to facilitate the air inlet connection between the storage room. In the cylinder 451, the dredging rod 426 can be used to dredge the ventilation hole 452, and the baffle 422 is used to block one end of the ventilation hole 452 to prevent dust from clogging the ventilation hole 452. When the ventilation hole 452 is blocked, the dredging disc 425 is moved toward the ventilation hole 452 by pressing the hand-shift block 427. At this time, the dredging rod 426 can be inserted into the ventilation hole 452 to dredge the ventilation hole 452. The first fixed rod 423 is used to limit the dredging disc 425 so that the dredging rod 426 is always inserted into the ventilation hole 452 when the dredging disc 425 moves on the first fixed rod 423. When released, the elastic force of the first spring 424 creates a gap between the dredging rod 426 and the ventilation hole 452 to prevent the dredging rod 426 from clogging the ventilation hole 452.

[0047] See also Figure 8 、 Figure 12 、 Figure 13 and Figure 14As shown, the alarm mechanism 45 includes a connecting cylinder 451, a ventilation hole 452 is provided at one end of the connecting cylinder 451, a piston block 453 is slidably connected to the inner cavity of the connecting cylinder 451, and a second spring 454 is fixedly connected to the side of the piston block 453 away from the ventilation hole 452, a first sliding groove 455 is provided on the outer surface of the connecting cylinder 451, a second slider 456 is slidably connected to the inner cavity of the first sliding groove 455, and a pressure ring 457 is fixedly connected to the end of the second spring 454 away from the piston block 453, and a third spring 458 is fixedly installed on the end of the pressure ring 457 away from the second spring 454, and the end of the third spring 458 away from the pressure ring 457 is fixed. The second handle 43 is fixedly mounted with a fixing frame 4513, and a button 4514 is provided on the inner wall of the fixing frame 4513. The outer surface of the second door body 3 is fixedly mounted with an alarm 4515. The ventilation hole 452 and the dredging rod 426 are plugged in. The piston cover 4510 and the threaded rod 4511 are connected by threads. The extrusion ring 459 and the connecting cylinder 451 are slidably connected. The fixing block 4512 is fixedly mounted on the upper surface of the second slider 456. The outer surface of the second handle 43 is fixedly mounted with a fixing frame 4513. The inner wall of the fixing frame 4513 is provided with a button 4514. The outer surface of the second door body 3 is fixedly mounted with an alarm 4515. The ventilation hole 452 and the dredging rod 426 are plugged in. The piston cover 4510 and the threaded rod 4511 are connected by threads. The extrusion ring 459 and the connecting cylinder 451 are slidably connected. The top of 4512 is located in the middle of button 4514. Button 4514 is electrically connected to alarm 4515. Button 4514 is used to control the alarm of alarm 4515. Second slider 456 is fixedly connected to pressure ring 457. When a fire occurs, the temperature in the storage room rises, the gas expands rapidly, and the pressure on the surrounding area is increased. When the air pressure increases, the gas will enter the connecting tube 451 from the ventilation hole 452, causing the piston block 453 to move under pressure. At this time, the piston block 453 squeezes the second spring 454, causing the second spring 454 to squeeze the pressure ring 457, and the pressure ring 457 squeezes the third spring 458. At this time, the pressure ring 458 is pressed. 57 drives the second slider 456 to move in the first slide groove 455, so that the fixed block 4512 on the second slider 456 contacts the button 4514 on the fixing frame 4513, thereby causing the alarm 4515 to sound an alarm, so that the staff can control the fire in time to prevent the fire from spreading. By rotating the threaded rod 4511, the extrusion ring 459 is moved to the appropriate position, so that the third spring 458 generates a certain pressure on the pressure ring 457, ensuring that there is a certain gap between the fixed block 4512 and the button 4514 at normal temperature and pressure. That is, the rotation of the threaded rod 4511 in the piston cover 4510 is used to control the initial position of the second slider 456.

[0048] In summary, by pulling the second door body 3, the third slider 54 on the second door body 3 slides in the inner cavity of the first door body 2. At this time, the slide bar 55 slides in the second slide groove 52 of the connecting plate 51. When the second door body 3 and the first door body 2 are close to overlapping, the rack 56 and the second fixed rod 57 are engaged, and the gear 58 and the door frame 1 always remain in a relatively fixed state. Therefore, during the movement of the rack 56, the rack 56 rotates to drive the first door body 2 and the second door body 3 to rotate. In this way, the first door body 2 and the second door body 3 can be opened to facilitate the transportation of goods. When the first door body 2 and the second door body 3 are opened, the limit on the fixed plate 8 is rotated during the rotation of the second door body 3. The positioning rod 9 is close to the limiting assembly 6. During the rotation of the second door body 3, the limiting rod 9 is inserted between the second limiting blocks 65, so that the fifth spring 64 is squeezed toward both ends. At this time, the second limiting blocks 65 clamp and fix the limiting rod 9 to prevent the first door body 2 and the second door body 3 from moving when the goods enter and exit the warehouse. When the first door body 2 and the second door body 3 are closed with the door frame 1, the sealing assembly 7 is squeezed by the first door body 2 and the second door body 3, so that the card strip 71 moves in the inner cavity of the door frame 1, and the elastic force of the sixth spring 72 squeezes the card strip 71 outward, and the first door body 2 and the second door body 3 squeeze the sealing strip 73, so that the sealing strip 73 is in close contact with the first door body 2 and the second door body 3, ensuring the overall To ensure tightness, by pressing the first slider 44, the first slider 44 moves toward the direction of the alarm mechanism 45. At this time, the first slider 44 drives the connecting rod 410 to squeeze the first limit block 48, so that the first limit block 48 shrinks to the inside of the lock tongue 47. At this time, the first limit block 48 is disengaged from the engagement with the fixed groove, and the second door body 3 can be slid from the door frame 1. The dredging rod 426 can be used to dredge the ventilation hole 452, and the shielding plate 422 is used to shield one end of the ventilation hole 452 to prevent dust from clogging the ventilation hole 452. When the ventilation hole 452 is blocked, the dredging disk 425 is moved toward the direction of the ventilation hole 452 by pressing the hand block 427. At this time, the dredging rod 426 can be inserted into the ventilation hole 452 to dredge the ventilation hole 452. When a fire occurs, the temperature in the storage room rises, the gas expands rapidly, and the pressure on the surrounding area is formed. When the air pressure increases, the gas will enter the connecting cylinder 451 from the ventilation hole 452, causing the piston block 453 to move under pressure. At this time, the piston block 453 squeezes the second spring 454 to make the second slider 456 move in the first slide groove 455, so that the fixing block 4512 on the second slider 456 contacts the button 4514 on the fixing frame 4513, thereby causing the alarm 4515 to sound an alarm, so that the staff can control the fire in time to prevent the fire from spreading.

[0049] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

[0050] The above is only a preferred specific implementation method of the embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and concept of the present application within the technical scope disclosed in the present application, and they should be covered by the scope of protection of the present application.

Claims

1. A closed storage door, comprising a door frame (1) and a handle, wherein the handle comprises a handle assembly (4), characterized in that: The inner cavity of the door frame (1) is rotatably connected to the first door body (2), the inner cavity of the door frame (1) is provided with a second door body (3), the second door body (3) and the first door body (2) are slidably connected, a rotating component (5) is provided at the top of the first door body (2), a limiting component (6) is fixedly installed on the outer surface of the door frame (1), sealing components (7) are provided on the inner walls of both sides of the door frame (1), a fixing plate (8) is fixedly installed on the outer surface of the second door body (3), and a limiting rod (9) is fixedly installed on the outer surface of the fixing plate (8); The rotating assembly (5) includes a connecting plate (51), a second sliding groove (52) is provided in the middle portion of the connecting plate (51), a connecting groove (53) is provided at one end of the second sliding groove (52), a third sliding block (54) is slidably connected to the upper surface of the first door body (2), a sliding rod (55) is fixedly installed on the upper surface of the third sliding block (54), a rack (56) is fixedly installed on one end of the third sliding block (54), a second fixed rod (57) is fixedly installed at the bottom end of the connecting plate (51), and a gear (58) is fixedly sleeved on the outer surface of the second fixed rod (57); The handle assembly (4) and the second door body (3) are fixedly sleeved, and the handle assembly (4) includes a connecting sleeve (41), a first handle (42) is sleeved on one side of the connecting sleeve (41), and a second handle (43) is sleeved on the other side of the connecting sleeve (41), and the upper and lower ends of the first handle (42) and the second handle (43) are slidably connected with a first slider (44), the inner cavity of the connecting sleeve (41) is fixedly sleeved with an alarm mechanism (45), and the outer surface of the first slider (44) is fixedly connected with a connecting strip (46), and the connecting strip (46) is slidably connected to the first handle (42) and the second handle (43), and the first slider (44) on the first handle (42) and the first slider (44) on the second handle (43) are fixedly connected through the connecting strip (46), and the connecting sleeve A lock tongue (47) is fixedly installed on the outer surface of (41), and the inner cavity of the lock tongue (47) is slidably connected to a first limit block (48), and the upper and lower ends of the connecting sleeve (41) are fixedly installed with a fourth spring (49), one end of the first limit block (48) is fixedly connected to the fourth spring (49), and both sides of the first limit block (48) and the side away from the fourth spring (49) are fixedly installed with a connecting rod (410), and the connecting rods (410) on both sides of the first limit block (48) are slidably connected to the first handle (42) and the second handle (43), and the connecting rod (410) on the side of the first limit block (48) away from the fourth spring (49) is fixedly connected to the connecting strip (46), and the inner cavity of the door frame (1) is provided with a fixing groove, and the fixing groove is engaged with the first limit block (48); The first handle (42) comprises a handle block (421), a shielding plate (422) is fixedly mounted on the outer surface of the handle block (421), a first fixing rod (423) is fixedly mounted on the outer surface of the handle block (421), a first spring (424) is sleeved on the outer surface of the first fixing rod (423), a dredging plate (425) is slidably connected to the outer surface of the first fixing rod (423), a dredging rod (426) is fixedly mounted on one side of the dredging plate (425), and a hand-operated block (427) is fixedly mounted on the side of the dredging plate (425) away from the dredging rod (426); The first spring (424) is located between the handle block (421) and the dredging plate (425), there is a gap between the dredging rod (426) and the alarm mechanism (45), the shielding plate (422) is located directly above the end of the alarm mechanism (45), and the first handle (42) is located inside the warehouse space when installed.

2. A storage airtight door according to claim 1, characterized in that: A groove is provided at the top of the door frame (1), the gap of the groove being larger than the diameter of the slide rod (55), the third slider (54) being fixedly connected to the second door body (3), the rack (56) being meshed with the gear (58), the connecting plate (51) being fixedly connected to the door frame (1), the second fixing rod (57) being rotatably connected to the first door body (2), and the gap of the connecting groove (53) being larger than the width of the third slider (54) and the diameter of the slide rod (55).

3. A storage airtight door according to claim 1, characterized in that: The limiting assembly (6) comprises a fixed seat (61), a limiting seat (62) is fixedly mounted at both ends of the fixed seat (61), a pressure rod (63) is inserted into the inner cavity of the limiting seat (62), a fifth spring (64) is sleeved on the outer surface of the pressure rod (63), and a second limiting block (65) is fixedly mounted at one end of the fifth spring (64).

4. A storage airtight door as claimed in claim 3, characterized in that: The middle position of the fixing seat (61) is at the same height as the limiting rod (9), the fixing seat (61) and the door frame (1) are fixedly connected, the limiting rod (9) and the second limiting block (65) are engaged when the second door body (3) rotates, and the fifth spring (64) is located between the limiting seat (62) and the second limiting block (65).

5. The storage airtight door according to claim 1, characterized in that: The sealing assembly (7) includes a clamping strip (71), the clamping strip (71) is slidably connected to the inner cavity of the door frame (1), the clamping strip (71) is fixedly connected to the inner cavity of the door frame (1) with a sixth spring (72), and one end of the sixth spring (72) is fixedly connected to the clamping strip (71), and the other end is fixedly connected to the inner wall of the door frame (1), and a sealing strip (73) is fixedly installed on the side of the clamping strip (71) away from the sixth spring (72), and the sealing strip (73) is exposed on the outer surface of the door frame (1), and the sealing strips (73) on both sides of the door frame (1) are in close contact with the first door body (2) and the second door body (3) when closed.

6. The storage airtight door according to claim 1, characterized in that: The alarm mechanism (45) includes a connecting tube (451), one end of the connecting tube (451) is provided with a ventilation hole (452), the inner cavity of the connecting tube (451) is slidably connected to a piston block (453), the side of the piston block (453) away from the ventilation hole (452) is fixedly connected to a second spring (454), the outer surface of the connecting tube (451) is provided with a first sliding groove (455), the inner cavity of the first sliding groove (455) is slidably connected to a second slider (456), the end of the second spring (454) away from the piston block (453) is fixedly connected to a pressure ring (457), and the end of the pressure ring (457) away from the second spring (454) is fixedly connected to the second spring (454). A third spring (458) is installed, and the end of the third spring (458) away from the pressure ring (457) is fixedly connected to the extrusion ring (459), the end of the connecting tube (451) away from the ventilation hole (452) is fixedly sleeved with a piston cover (4510), and the inner cavity of the piston cover (4510) is rotatably connected to a threaded rod (4511), a fixing block (4512) is fixedly installed on the upper surface of the second slider (456), a fixing frame (4513) is fixedly installed on the outer surface of the second handle (43), and a button (4514) is provided on the inner wall of the fixing frame (4513), and an alarm (4515) is fixedly installed on the outer surface of the second door body (3).

7. A storage airtight door according to claim 6, characterized in that: The ventilation hole (452) and the dredging rod (426) are plugged into each other, the piston cover (4510) and the threaded rod (4511) are connected by threads, the extrusion ring (459) and the connecting tube (451) are slidably connected, the top end of the fixed block (4512) is located in the middle of the button (4514), the button (4514) and the alarm (4515) are electrically connected, and the button (4514) is used to control the alarm of the alarm (4515), and the second slider (456) and the pressure ring (457) are fixedly connected.

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