Heat-insulating and fireproof door and its manufacturing method

Abstract

The present invention discloses a heat-insulating and fire-proof door and a manufacturing method thereof, which relates to the field of fire-fighting technology. The heat-insulating and fire-proof door includes a heat-insulating and fire-proof door shell, and an observation glass plate is clamped at an observation port on the right side of the surface of the heat-insulating and fire-proof door shell; a main sprocket is rotatably connected inside the heat-insulating and fire-proof door shell, and the number of the main sprockets is four. An articulated frame is articulated on the surface of the main sprocket, and a clamping rod is articulated at one end of the articulated frame away from the main sprocket. The surface of the clamping rod is slidably connected with a sliding hole of the heat-insulating and fire-proof door shell; a limiting frame is welded on the right side inside the heat-insulating and fire-proof door shell, and a baffle is slidably connected inside the limiting frame. Transmission rods are welded at the top and bottom on the left side of the baffle. Through the transmission of the structure, the baffle can be driven to cover the observation glass plate. When the observation glass plate is damaged, the baffle can close the observation port for heat insulation and fire prevention, and the clamping rod can clamp the heat-insulating and fire-proof door shell on the door frame to fix the heat-insulating and fire-proof door shell.

Description

Technical Field

[0001] The present invention relates to the field of fire protection technology, and particularly to a heat-insulating and fire-proof door and a manufacturing method thereof. Background Art

[0002] A patent with application number 201710504623.6 discloses a heat-insulating and fire-proof door and a manufacturing method thereof, which includes a door frame with fire-proof function and at least one door leaf. The door leaves are respectively rotatably arranged on the opposite inner sides of the door frame. The door frame includes a door frame cover plate made of metal material, and a matrix frame made of fire-proof material is arranged inside the door frame cover plate; the door leaf includes a door leaf skeleton made of fire-proof material and / or metal material, an insulating door core made of heat-insulating material is filled inside the door leaf skeleton, at least one layer of door leaf inner plate made of fire-proof material is arranged on both sides of the door leaf skeleton, and a door leaf outer plate made of metal material is arranged on the outer side of the door leaf inner plate. The advantages are as follows: the multi-layer structure design of the door frame and the door leaf can effectively prevent the fire-proof door from deforming, and has good fire-proof effect; the manufacturing method has simple steps and can ensure the fire-proof effect of the manufactured heat-insulating and fire-proof door at the same time.

[0003] However, there are also some problems with this heat-insulating and fire-proof door and its manufacturing method. For example, glass is installed on the door to facilitate light transmission and observation. Although these glasses can be made heat-resistant, they are prone to breakage in a high-temperature environment or when fire-fighting water is sprayed, thus losing the heat-insulating and fire-proof effect. Moreover, the door panel is prone to lose the clamping effect with the door frame when heated and is prone to looseness. Summary of the Invention

[0004] The purpose of the present application is to provide a heat-insulating and fire-proof door and a manufacturing method thereof to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present application provides the following technical solutions: a heat-insulating and fire-proof door, including a heat-insulating and fire-proof door shell, and an observation glass plate is clamped at an observation port on the right side of the surface of the heat-insulating and fire-proof door shell;

[0006] A main sprocket is rotatably connected inside the heat-insulating and fire-proof door shell. The number of main sprockets is four. An articulated frame is hinged on the surface of the main sprocket. One end of the articulated frame away from the main sprocket is hinged with a clamping rod, and the surface of the clamping rod is slidably connected with a sliding hole of the heat-insulating and fire-proof door shell;

[0007] A limiting frame is welded on the right side inside the heat-insulating and fire-proof door shell. A baffle is slidably connected inside the limiting frame. Transmission rods are welded at the top and bottom on the left side of the baffle. The left ends of the transmission rods extend to the left side of the limiting frame. An adjusting mechanism is bolted on the left side of the bottom inside the heat-insulating and fire-proof door shell. The adjusting mechanism meshes with the main sprocket, and the transmission mechanism is hinged with the transmission rod.

[0008] With the above structure, the transmission of the structure can drive the baffle to cover the observation glass plate. When the observation glass plate is damaged, the baffle can close the observation port for heat insulation and fire prevention, and the clamping rod can clamp the heat insulation and fire prevention door shell on the door frame to fix the heat insulation and fire prevention door shell.

[0009] Preferably, the adjusting mechanism includes a reduction motor, a worm, a worm gear and a transmission component;

[0010] The bottom of the reduction motor is bolted to the left side of the inner bottom end of the heat insulation and fire prevention door shell. The output end of the reduction motor is connected to the bottom end of the worm through a coupling. The number of both the worm gear and the transmission component is two. The top and bottom ends of the surface of the worm are respectively meshed with the left sides of the two worm gears. The worm gear is hinged to the transmission component, and the transmission component is meshed with the main sprocket.

[0011] Furthermore, when the power supply of the reduction motor is turned on, the reduction motor is fixed by the heat insulation and fire prevention door shell to ensure the smooth operation of the reduction motor. The reduction motor can drive the worm to rotate, the worm can drive the two worm gears to rotate, and the worm gears can drive the transmission component to rotate.

[0012] Preferably, the transmission component includes a transmission frame, a sprocket disc and a chain;

[0013] The left end of the transmission frame is hinged to the left side of the surface of the worm gear. The right end of the transmission frame is hinged to the surface of the sprocket disc. The axis of the sprocket disc is rotatably connected to the inside of the heat insulation and fire prevention door shell. The teeth of the sprocket disc are meshed with the surface of the chain. The two sides inside the chain are respectively meshed with the teeth of the two main sprockets.

[0014] Furthermore, an eccentric structure is formed between the surface of the worm gear and the left end of the transmission frame. The worm gear can drive the transmission frame to move leftward. The transmission frame can drive the sprocket disc to rotate. The sprocket disc is of a fan-shaped structure. The sprocket disc can drive the chain to rotate, and the chain can drive the two main sprockets to rotate.

[0015] Preferably, the top end of the worm is rotatably sleeved with the inner top end of the heat insulation and fire prevention door shell. The axis of the worm gear is rotatably connected to the inside of the heat insulation and fire prevention door shell. The axis of the sprocket disc is rotatably connected to the inside of the heat insulation and fire prevention door shell. The sprocket disc is of a fan-shaped structure.

[0016] Furthermore, the worm is rotatably arranged on the heat insulation and fire prevention door shell through a bearing to ensure the smooth rotation of the worm. The worm gear is rotatably arranged on the heat insulation and fire prevention door shell through a bearing to ensure the smooth rotation of the worm gear. The sprocket disc is rotatably arranged on the heat insulation and fire prevention door shell through a bearing to ensure the smooth rotation of the sprocket disc.

[0017] Preferably, the transmission mechanism includes a main bevel gear, a sub-bevel gear, a lead screw and a driving component;

[0018] The surface of the worm is key-connected to the axis of the main bevel gear. The teeth of the main bevel gear mesh with the teeth of the secondary bevel gear. The axis on the right side of the secondary bevel gear is key-connected to the left end of the lead screw. The lead screw is thread-connected to the drive assembly, and the drive assembly is hinged to the transmission rod.

[0019] Further, the worm can drive the main bevel gear to rotate, the main bevel gear can drive the secondary bevel gear to rotate, the secondary bevel gear can drive the lead screw to rotate, the lead screw can drive the drive assembly to rotate, and the drive assembly can drive the transmission rod to move.

[0020] Preferably, the drive assembly includes a chute block, a slider, a movable frame, and a hinge rod;

[0021] The surface of the lead screw is thread-connected to the threaded hole of the chute block. The number of sliders, movable frames, and hinge rods is two. The rear sides of the two sliders are slidably connected to the chute of the chute block. The surface of the slider is hinged to the rear side of the movable frame. The hole at the rear side of the movable frame is rotatably connected to the inside of the heat-insulating and fire-proof door shell. The end of the movable frame away from the slider is hinged to the left end of the hinge rod, and the right end of the hinge rod is hinged to the left end of the transmission rod.

[0022] Further, the lead screw can drive the chute block to move leftward. The chute block can drive the slider to move leftward. The slider can slide in the chute of the chute block and drive the movable frame to rotate arcuately. The movable frame is rotatably arranged with the heat-insulating and fire-proof door shell through a bearing to ensure the smooth rotation of the movable frame. The movable frame can drive the hinge rod to move rightward, and the hinge rod can drive the transmission rod to move rightward.

[0023] Preferably, both ends of the lead screw are rotatably sleeved with the inside of the heat-insulating and fire-proof door shell. A stabilizing frame is slidably connected to the rear side of the chute block, and the rear side of the stabilizing frame is bolted to the inside of the heat-insulating and fire-proof door shell.

[0024] Further, the lead screw is rotatably arranged with the heat-insulating and fire-proof door shell through a bearing to ensure the smooth rotation of the lead screw. The chute block is slidably arranged with the stabilizing frame through a slide rail to guide the chute block and facilitate the chute block to drive the slider.

[0025] Preferably, a guide frame is slidably connected to the surface of the clamping rod. The rear side of the guide frame is bolted to the inside of the heat-insulating and fire-proof door shell. Two main sprockets are in a group, and the two groups of main sprockets are respectively located at the top and bottom inside the heat-insulating and fire-proof door shell.

[0026] Further, the clamping rod is slidably arranged with the guide frame through a chute to guide the clamping rod, and the main sprocket facilitates the transmission of the structure.

[0027] Preferably, the observation glass plate is located inside the limit frame. The baffle is corresponding to the observation glass plate. Fire-proof rubber pads are bonded to the front side and the rear side of the baffle. The surface of the transmission rod is slidably connected to the hole on the left side of the limit frame.

[0028] Further, after the observation glass plate is located inside the limit frame, the baffle is used to block the observation glass plate, which facilitates heat insulation and fire prevention of the baffle. The fireproof rubber pad of the baffle can produce a sealing effect to prevent smoke from entering. The transmission rod is slidably arranged with the limit frame through a chute.

[0029] The present invention also proposes a manufacturing method of the heat insulation and fireproof door, including the following steps:

[0030] S1: The heat insulation and fireproof door shell is integrally cast from a steel plate into a frame plate and a sealing steel plate, and the limit frame is welded well;

[0031] S2: Slide holes are opened at both the top and bottom of the frame plate, a total of four slide holes are opened, and heat-resistant rubber sleeves are used for sealing between the slide holes and the clamping rods. Then, an adjusting mechanism, a main sprocket, a hinge bracket, and a clamping rod are installed, and heat insulation materials are arranged between the reduction motor and the frame plate;

[0032] S3: An observation port is opened on the sealing steel plate, and the observation glass plate is clamped in. The observation glass plate is made of heat-resistant and fireproof glass, and the transmission mechanism is installed;

[0033] S4: The sealing steel plate is covered on the opening of the frame plate and welded to seal the heat insulation and fireproof door shell.

[0034] In summary, the technical effects and advantages of the present invention are as follows:

[0035] 1. The adjusting mechanism can drive the transmission rod to move through the transmission mechanism, and the transmission rod can isolate and limit the observation glass plate inside the limit frame through the baffle;

[0036] 2. The adjusting mechanism can drive the hinge bracket to move through the main sprocket, and the hinge bracket can clamp and fix the heat insulation and fireproof door shell through the clamping rod;

[0037] Through the transmission of the structure, the baffle can be driven to cover the observation glass plate. When the observation glass plate is damaged, the baffle can close the observation port for heat insulation and fire prevention, and the clamping rod can clamp the heat insulation and fireproof door shell on the door frame to fix the heat insulation and fireproof door shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 is the front view structural schematic diagram of the embodiment of the present application;

[0039] Figure 2 is the structural schematic diagram of the adjusting mechanism of the embodiment of the present application;

[0040] Figure 3 is the structural schematic diagram of the transmission mechanism of the embodiment of the present application;

[0041] Figure 4 is the top view structural schematic diagram of the sprocket disc of the embodiment of the present application;

[0042] Figure 5 Schematic diagram of the rear view structure of the chain for the embodiment of the present application;

[0043] Figure 6 Schematic three-dimensional diagram of the worm for the embodiment of the present application;

[0044] Figure 7 Schematic three-dimensional diagram of the main bevel gear for the embodiment of the present application;

[0045] Figure 8 Schematic three-dimensional diagram of the chute block for the embodiment of the present application.

[0046] In the figure: 1, heat-insulating and fire-proof door shell; 2, adjusting mechanism; 21, reduction motor; 22, worm; 23, worm gear; 24, transmission frame; 25, sprocket disc; 26, chain; 3, transmission mechanism; 31, main bevel gear; 32, auxiliary bevel gear; 33, lead screw; 34, chute block; 35, slider; 36, movable frame; 37, articulated rod; 4, observation glass plate; 5, main sprocket; 6, articulated frame; 7, clamping rod; 8, transmission rod; 9, baffle; 10, limiting frame Specific embodiments

[0047] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0048] Embodiment

[0049] Refer to Figure 1-8 , in this embodiment, a heat-insulating and fire-proof door is proposed, including a heat-insulating and fire-proof door shell 1, and an observation glass plate 4 is clamped at the observation port on the right side of the surface of the heat-insulating and fire-proof door shell 1;

[0050] A main sprocket 5 is rotatably connected inside the heat-insulating and fire-proof door shell 1. The number of the main sprockets 5 is four. An articulated frame 6 is articulated on the surface of the main sprocket 5. One end of the articulated frame 6 away from the main sprocket 5 is articulated with a clamping rod 7, and the surface of the clamping rod 7 is slidably connected with the sliding hole of the heat-insulating and fire-proof door shell 1;

[0051] A limiting frame 10 is welded on the right side inside the heat-insulating and fire-proof door shell 1. A baffle 9 is slidably connected inside the limiting frame 10. Transmission rods 8 are welded at the top and bottom on the left side of the baffle 9. The left ends of the transmission rods 8 extend to the left side of the limiting frame 10. An adjusting mechanism 2 is bolted on the left side at the bottom inside the heat-insulating and fire-proof door shell 1. The adjusting mechanism 2 is engaged with the main sprocket 5, and a transmission mechanism 3 is articulated with the transmission rod 8.

[0052] Through the above mechanism, the baffle 9 can be driven to cover the observation glass plate 4 through the transmission of the structure. When the observation glass plate 4 is damaged, the baffle 9 can close the observation port for heat insulation and fire prevention, and the clamping rod 7 can clamp the heat insulation and fire prevention door shell 1 on the door frame to fix the heat insulation and fire prevention door shell 1.

[0053] As a preferred implementation manner of this embodiment, the adjusting mechanism 2 includes a reduction motor 21, a worm 22, a worm wheel 23 and a transmission assembly;

[0054] The bottom of the reduction motor 21 is bolted to the left side of the inner bottom end of the heat insulation and fire prevention door shell 1. The output end of the reduction motor 21 is connected to the bottom end of the worm 22 through a coupling. The number of the worm wheels 23 and the transmission assemblies is two. The top and bottom ends of the surface of the worm 22 are respectively meshed with the left sides of the two worm wheels 23. The worm wheels 23 are hinged to the transmission assemblies, and the transmission assemblies are meshed with the main sprockets 5.

[0055] Connect the power supply of the reduction motor 21. The reduction motor 21 is fixed by the heat insulation and fire prevention door shell 1 to ensure the smooth operation of the reduction motor 21. The reduction motor 21 can drive the worm 22 to rotate. The worm 22 can drive the two worm wheels 23 to rotate. The worm wheels 23 can drive the transmission assemblies to rotate. The transmission assemblies can drive the main sprockets 5 to rotate. The worm 22 can drive the transmission mechanism 3 to rotate.

[0056] In this embodiment, the transmission assembly includes a transmission frame 24, a sprocket disc 25 and a chain 26;

[0057] The left end of the transmission frame 24 is hinged to the left side of the surface of the worm wheel 23. The right end of the transmission frame 24 is hinged to the surface of the sprocket disc 25. The axis of the sprocket disc 25 is rotatably connected to the inside of the heat insulation and fire prevention door shell 1. The teeth of the sprocket disc 25 are meshed with the surface of the chain 26. The two sides inside the chain 26 are respectively meshed with the teeth of the two main sprockets 5.

[0058] An eccentric structure is formed between the surface of the worm wheel 23 and the left end of the transmission frame 24. The worm wheel 23 can drive the transmission frame 24 to move. The transmission frame 24 can drive the sprocket disc 25 to rotate. The sprocket disc 25 is of a fan-shaped structure. The sprocket disc 25 can drive the chain 26 to rotate. The chain 26 can drive the two main sprockets 5 to rotate.

[0059] In this embodiment, the top end of the worm 22 is rotatably sleeved with the inner top end of the heat insulation and fire prevention door shell 1. The axis of the worm wheel 23 is rotatably connected to the inside of the heat insulation and fire prevention door shell 1. The axis of the sprocket disc 25 is rotatably connected to the inside of the heat insulation and fire prevention door shell 1. The sprocket disc 25 is of a fan-shaped structure.

[0060] The worm 22 is rotatably arranged with the heat-insulating and fire-proof door shell 1 through bearings to ensure the smooth rotation of the worm 22. The worm wheel 23 is rotatably arranged with the heat-insulating and fire-proof door shell 1 through bearings to ensure the smooth rotation of the worm wheel 23. The sprocket disc 25 is rotatably arranged with the heat-insulating and fire-proof door shell 1 through bearings to ensure the smooth rotation of the sprocket disc 25.

[0061] In this embodiment, the transmission mechanism 3 includes a main bevel gear 31, a sub-bevel gear 32, a lead screw 33 and a driving assembly;

[0062] The surface of the worm 22 is key-connected to the axis of the main bevel gear 31. The teeth of the main bevel gear 31 are meshed with the teeth of the sub-bevel gear 32. The axis on the right side of the sub-bevel gear 32 is key-connected to the left end of the lead screw 33. The lead screw 33 is thread-connected to the driving assembly, and the driving assembly is hinged to the transmission rod 8.

[0063] The worm 22 can drive the main bevel gear 31 to rotate. The main bevel gear 31 can drive the sub-bevel gear 32 to rotate. The sub-bevel gear 32 can drive the lead screw 33 to rotate. The lead screw 33 can drive the driving assembly to rotate. The driving assembly can drive the transmission rod 8 to move.

[0064] In this embodiment, the driving assembly includes a chute block 34, a slider 35, a movable frame 36 and a hinge rod 37;

[0065] The surface of the lead screw 33 is thread-connected to the screw hole of the chute block 34. The number of the sliders 35, the movable frames 36 and the hinge rods 37 is two. The rear sides of the two sliders 35 are slidably connected to the chute of the chute block 34. The surface of the slider 35 is hinged to the rear side of the movable frame 36. The hole at the rear side of the movable frame 36 is rotatably connected to the inside of the heat-insulating and fire-proof door shell 1. The end of the movable frame 36 away from the slider 35 is hinged to the left end of the hinge rod 37. The right end of the hinge rod 37 is hinged to the left end of the transmission rod 8.

[0066] The lead screw 33 can drive the chute block 34 to move. The chute block 34 can drive the slider 35 to move. The slider 35 can slide in the chute of the chute block 34 and drive the movable frame 36 to rotate in an arc. The movable frame 36 is rotatably arranged with the heat-insulating and fire-proof door shell 1 through bearings to ensure the smooth rotation of the movable frame 36. The movable frame 36 can drive the hinge rod 37 to move. The hinge rod 37 can drive the transmission rod 8 to move.

[0067] In this embodiment, both ends of the lead screw 33 are rotatably sleeved with the inside of the heat-insulating and fire-proof door shell 1. A stabilizing frame is slidably connected to the rear side of the chute block 34, and the rear side of the stabilizing frame is bolted to the inside of the heat-insulating and fire-proof door shell 1.

[0068] The lead screw 33 is rotatably arranged with the heat-insulating and fire-proof door shell 1 through bearings to ensure the smooth rotation of the lead screw 33. The chute block 34 is slidably arranged with the stabilizing frame through a slide rail to guide the chute block 34, which is convenient for the chute block 34 to drive the slider 35.

[0069] In this embodiment, a guiding frame is slidably connected to the surface of the clamping rod 7. The rear side of the guiding frame is bolted to the inside of the heat-insulating and fire-proof door shell 1. Two main sprockets 5 are in a group, and the two groups of main sprockets 5 are respectively located at the top and bottom inside the heat-insulating and fire-proof door shell 1.

[0070] The clamping rod 7 is slidably arranged in the guiding frame through a sliding groove to guide the clamping rod 7, and the main sprocket 5 facilitates the transmission of the structure.

[0071] In this embodiment, the observation glass plate 4 is located inside the limiting frame 10. The baffle 9 corresponds to the observation glass plate 4. Fire-proof rubber pads are adhered to the front side and the rear side of the baffle 9. The surface of the transmission rod 8 is slidably connected to the hole on the left side of the limiting frame 10.

[0072] After the observation glass plate 4 is located inside the limiting frame 10, the baffle 9 is used to block the observation glass plate 4, which facilitates heat insulation and fire prevention of the baffle 9. The fire-proof rubber pads of the baffle 9 can produce a sealing effect to prevent smoke from entering. The transmission rod 8 is slidably arranged in the limiting frame 10 through a sliding groove.

[0073] The present invention also proposes a manufacturing method of the heat-insulating and fire-proof door, including the following steps:

[0074] S1: The heat-insulating and fire-proof door shell 1 is integrally die-cast from a steel plate into a frame plate and a sealing steel plate, and the limiting frame 10 is welded well;

[0075] S2: Slide holes are opened at both the top and the bottom of the frame plate, a total of four slide holes are opened. Heat-resistant rubber sleeves are used for sealing between the slide holes and the clamping rod 7. Then, the adjusting mechanism 2, the main sprocket 5, the hinge frame 6 and the clamping rod 7 are installed, and heat-insulating materials are arranged between the reduction motor 21 and the frame plate;

[0076] S3: An observation opening is opened on the sealing steel plate, and the observation glass plate 4 is clamped in. The observation glass plate 4 is made of heat-resistant and fire-proof glass, and the transmission mechanism 3 is installed;

[0077] S4: The sealing steel plate is covered on the opening of the frame plate and welded to seal the heat-insulating and fire-proof door shell 1.

[0078] Working principle: Connect the power supply of the reduction motor 21. The reduction motor 21 is fixed by the heat-insulating and fire-proof door shell 1 to ensure the smooth operation of the reduction motor 21. The reduction motor 21 can drive the worm 22 to rotate, and the worm 22 can drive two worm wheels 23 to rotate. There is an eccentric structure between the surface of the worm wheel 23 and the left end of the transmission frame 24. The worm wheel 23 can drive the transmission frame 24 to move leftward. The transmission frame 24 can drive the sprocket disc 25 to rotate. The sprocket disc 25 is of a fan-shaped structure. The sprocket disc 25 can drive the chain 26 to rotate. The chain 26 can drive two main sprockets 5 to rotate. The main sprockets 5 are rotatably arranged on the heat-insulating and fire-proof door shell 1 through bearings to ensure the smooth rotation of the main sprockets 5. There is an eccentric structure between the surface of the main sprocket 5 and the rear side of the hinge frame 6. The hinge frame 6 can drive the clamping rod 7 to move outward. The clamping rod 7 can protrude outward from the heat-insulating and fire-proof door shell 1 for clamping. The worm 22 can drive the main bevel gear 31 to rotate. The main bevel gear 31 can drive the secondary bevel gear 32 to rotate. The secondary bevel gear 32 can drive the lead screw 33 to rotate. The lead screw 33 can drive the chute block 34 to move leftward. The chute block 34 can drive the slider 35 to move leftward. The slider 35 can slide in the chute of the chute block 34 and drive the movable frame 36 to rotate arcuately. The movable frame 36 is rotatably arranged on the heat-insulating and fire-proof door shell 1 through bearings to ensure the smooth rotation of the movable frame 36. The movable frame 36 can drive the hinge rod 37 to move rightward. The hinge rod 37 can drive the transmission rod 8 to move rightward. The transmission rod 8 can drive the baffle 9 to move rightward. The baffle 9 can cover the observation glass plate 4 of the heat-insulating and fire-proof door shell 1.

[0079] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Heat-insulating and fireproof door, comprising a heat-insulating and fireproof door shell (1), characterized in that, An observation glass plate (4) is snap-connected to the observation port on the right side of the surface of the heat-insulating and fire-proof door shell (1); A main sprocket (5) is rotatably connected inside the heat-insulating and fire-proof door shell (1). The number of main sprockets (5) is four. An articulated frame (6) is hinged to the surface of the main sprocket (5). One end of the articulated frame (6) away from the main sprocket (5) is hinged to a clamping rod (7). The surface of the clamping rod (7) is slidably connected to the sliding hole of the heat-insulating and fire-proof door shell (1); A limiting frame (10) is welded to the right side inside the heat-insulating and fire-proof door shell (1). A baffle (9) is slidably connected inside the limiting frame (10). Transmission rods (8) are welded to the top and bottom of the left side of the baffle (9). The left ends of the transmission rods (8) extend to the left side of the limiting frame (10). An adjusting mechanism (2) is bolted to the left side of the bottom end inside the heat-insulating and fire-proof door shell (1). The adjusting mechanism (2) meshes with the main sprocket (5), and a transmission mechanism (3) is hinged to the transmission rod (8); The adjusting mechanism (2) includes a reduction motor (21), a worm (22), a worm gear (23) and a transmission component; the output end of the reduction motor (21) is connected to the bottom end of the worm (22) through a coupling. The top and bottom ends of the surface of the worm (22) are respectively meshed with the left sides of two worm gears (23); The transmission component includes a transmission frame (24), a sprocket disc (25) and a chain (26); the left end of the transmission frame (24) is hinged to the left side of the surface of the worm gear (23). The right end of the transmission frame (24) is hinged to the surface of the sprocket disc (25). The teeth of the sprocket disc (25) are meshed with the surface of the chain (26). The two sides inside the chain (26) are respectively meshed with the teeth of the two main sprockets (5); The transmission mechanism (3) includes a main bevel gear (31), a sub-bevel gear (32), a lead screw (33) and a driving component; the surface of the worm (22) is key-connected to the axis of the main bevel gear (31). The teeth of the main bevel gear (31) are meshed with the teeth of the sub-bevel gear (32). The axis of the right side of the sub-bevel gear (32) is key-connected to the left end of the lead screw (33). The lead screw (33) is threadedly connected to the driving component, and the driving component is hinged to the transmission rod (8); The driving component includes a chute block (34), a slider (35), a movable frame (36) and an articulated rod (37); the surface of the lead screw (33) is threadedly connected to the threaded hole of the chute block (34). The number of sliders (35), movable frames (36) and articulated rods (37) is two. The rear sides of the two sliders (35) are slidably connected to the chute of the chute block (34). The surface of the slider (35) is hinged to the rear side of the movable frame (36). One end of the movable frame (36) away from the slider (35) is hinged to the left end of the articulated rod (37). The right end of the articulated rod (37) is hinged to the left end of the transmission rod (8).

2. The heat-insulating and fire-proof door according to claim 1, characterized in that, The bottom of the reduction motor (21) is bolted to the left side of the bottom end inside the heat-insulating and fire-proof door shell (1). The number of worm gears (23) and transmission components is two. The worm gear (23) is hinged to the transmission component, and the transmission component meshes with the main sprocket (5).

3. The heat-insulating and fire-proof door according to claim 1, characterized in that, The axis of the sprocket disc (25) is rotatably connected to the inside of the heat-insulating and fire-proof door shell (1).

4. The heat-insulating and fire-proof door according to claim 1, wherein The top end of the worm (22) is rotatably sleeved with the top end inside the heat-insulating and fire-proof door shell (1), the axis of the worm wheel (23) is rotatably connected to the inside of the heat-insulating and fire-proof door shell (1), the axis of the sprocket disc (25) is rotatably connected to the inside of the heat-insulating and fire-proof door shell (1), and the sprocket disc (25) has a fan-shaped structure.

5. The heat-insulating and fire-proof door according to claim 1, wherein The hole at the rear side of the movable frame (36) is rotatably connected to the inside of the heat-insulating and fire-proof door shell (1).

6. The heat-insulating and fire-proof door according to claim 1, characterized in that, Both ends of the lead screw (33) are rotatably sleeved with the inside of the heat-insulating and fire-proof door shell (1). A stabilizing frame is slidably connected to the rear side of the chute block (34), and the rear side of the stabilizing frame is bolted to the inside of the heat-insulating and fire-proof door shell (1).

7. The heat-insulating and fire-proof door according to claim 1, characterized in that, A guiding frame is slidably connected to the surface of the clamping rod (7). The rear side of the guiding frame is bolted to the inside of the heat-insulating and fire-proof door shell (1). Two main sprockets (5) form a group, and two groups of main sprockets (5) are respectively located at the top end and the bottom end inside the heat-insulating and fire-proof door shell (1).

8. The heat-insulating and fire-proof door according to claim 1, characterized in that, The observation glass plate (4) is located inside the limiting frame (10). The baffle plate (9) corresponds to the observation glass plate (4). Fire-proof rubber pads are adhered to the front side and the rear side of the baffle plate (9). The surface of the transmission rod (8) is slidably connected to the hole on the left side of the limiting frame (10).

9. The manufacturing method of the heat-insulating and fire-proof door according to claim 1, characterized in that, It includes the following steps: S1: The heat-insulating and fire-proof door shell (1) is integrally die-cast from a steel plate into a frame plate and a sealing steel plate, and the limiting frame (10) is welded. S2: Slide holes are opened at both the top and the bottom of the frame plate, a total of four slide holes are opened. The slide holes and the clamping rod (7) are sealed with heat-resistant rubber sleeves. Then the adjusting mechanism (2), the main sprocket (5), the hinge frame (6) and the clamping rod (7) are installed, and heat-insulating materials are arranged between the reduction motor (21) and the frame plate. S3: An observation opening is opened on the sealing steel plate, and the observation glass plate (4) is clamped in. The observation glass plate (4) is made of heat-resistant and fire-proof glass, and the transmission mechanism (3) is installed. S4: The sealing steel plate is covered on the opening of the frame plate and welded to seal the heat-insulating and fire-proof door shell (1).

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