A cast aluminum door with door mirror fire protection device

Abstract

This invention provides a cast aluminum door with a fireproof peephole, relating to the field of cast aluminum door technology. The cast aluminum door with a fireproof peephole includes a main body with a movable cavity inside. A rotating shaft is rotatably connected to the rear wall of the movable cavity. A rotating rod is fixedly connected to the front end of the rotating shaft and is located on the front side of the main body. A baffle plate is fixedly connected to the bottom end of the rotating rod, and a toggle lever is fixedly connected to the front end of the baffle plate. A rotating block is fixedly connected to the circumference of the rotating shaft. A peephole assembly and a baffle assembly are fixedly connected to the bottom of the rotating block, with the peephole assembly located to the left of the baffle assembly. This effectively solves the problem of the peephole assembly melting in a fire, thus preventing flames and smoke from spreading outwards through the external and internal openings. Furthermore, when not observing the outside, the baffle assembly always blocks the external and internal openings, effectively preventing outsiders from peeping into the interior.

Description

Technical Field

[0001] The invention relates to the technical field of cast aluminum doors, in particular to a cast aluminum door with a door mirror fire protection device. Background Art

[0002] Cast aluminum doors are made using modern high-tech processing technology, solid cast aluminum, and the entire cast is formed. The various villa doors and apartment doors manufactured are novel, beautiful, elegant, unique, luxurious and spectacular. Cast aluminum doors have a series of superior properties due to the particularity of their materials and production process. They are corrosion-resistant, windproof and heat-insulating, noise-proof, strong toughness, and beautiful in appearance. Therefore, cast aluminum doors are often used in the field of fire doors.

[0003] In order to facilitate observation of the situation outside the door, a door mirror structure is often installed on the cast aluminum door during the manufacturing process. However, when a fire occurs, the door mirror structure will be gradually melted by the fire, causing flames and smoke to spread outward from the door mirror installation hole, causing the fire door to lose its function, posing certain safety hazards. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a cast aluminum door with a door mirror fire protection device, which solves the problem that the existing door mirror structure is easily melted by the fire when a fire breaks out, thereby causing the fire door to lose its function.

[0005] Technical solution, in order to achieve the above purpose, the present invention is implemented through the following technical solution: a cast aluminum door with a door mirror fire prevention device, comprising a cast aluminum door body, a movable cavity is arranged inside the cast aluminum door body, a rotating shaft is rotatably connected to the rear wall of the movable cavity, a rotating rod is fixedly connected to the front end of the rotating shaft, and the rotating rod is located on the front side of the cast aluminum door body, a shielding plate is fixedly connected to the bottom end of the rotating rod, a toggle rod is fixedly connected to the front end of the shielding plate, a rotating block is fixedly connected to the circumferential surface of the rotating shaft, a door mirror assembly and a shielding assembly are fixedly connected to the bottom of the rotating block, the door mirror assembly is located on the left side of the shielding assembly, and the shielding assembly and the shielding plate are arranged correspondingly, and a counterweight is fixedly connected to the bottom of the shielding assembly;

[0006] A first positioning rod and a second positioning rod are fixedly connected between the front and rear inner walls of the movable cavity, the first positioning rod is located on the left side of the rotating block, the second positioning rod is located on the right side of the rotating block, a second magnetic block is fixedly connected to the bottom of the first positioning rod, a groove is provided on the left side wall of the rotating block, and the first magnetic block is fixedly connected inside the groove;

[0007] An inner hole is arranged on the front side wall of the cast aluminum door body, and an outer hole is arranged on the rear side wall of the cast aluminum door body. The diameter of the outer hole is the same as that of the inner hole, and the outer hole and the inner hole are arranged correspondingly.

[0008] Preferably, the shielding assembly includes a fixed column, a first extrusion cavity, an extrusion block, a telescopic rod, a first spring, an extrusion rod, a storage cavity, a fireproof sealing block, a limit block, a support rod, an extrusion disk, a sliding hole, a second extrusion cavity, a cone block, a second spring, a connecting rod, a third spring and a blocking block, the fixed column is fixedly connected to the bottom of the rotating block, the first extrusion cavity is arranged in the middle position inside the fixed column, the extrusion block is slidably connected to the inside of the first extrusion cavity, the telescopic rod is fixedly connected to the top of the first extrusion cavity, and the bottom end of the telescopic rod is fixedly connected to the extrusion block, the first spring is sleeved on the telescopic rod, the extrusion rod is fixedly connected to the bottom end of the extrusion block, and the bottom end of the extrusion rod is located below the fixed column, the number of the storage cavities is two, and they are symmetrically arranged on the front and rear side walls of the fixed column, the fireproof sealing block slides The first extrusion cavity is movably connected to the inside of the storage cavity, the limit block is fixedly connected to the inner wall of the storage cavity, the support rod is fixedly connected to the side of the fireproof sealing block close to the first extrusion cavity, the extrusion disk is fixedly connected to the other end of the support rod, the sliding hole is arranged in the middle position of the extrusion disk, the number of the second extrusion cavities is two, and they are symmetrically arranged on the front and rear side walls of the first extrusion cavity, the cone block is slidably connected to the inside of the first extrusion cavity, the connecting rod is fixedly connected to the side of the cone block away from the first extrusion cavity, the connecting rod is slidably connected to the inside of the sliding hole, the blocking block is fixedly connected to the other end of the connecting rod, and the blocking block is located on the side of the extrusion disk close to the fireproof sealing block, the second spring and the third spring are both sleeved on the connecting rod, the second spring is located inside the second extrusion cavity, and the third spring is located inside the storage cavity.

[0009] Preferably, the fireproof sealing block, extrusion plate, conical block, second spring, connecting rod, third spring and blocking block are each provided with two in number and are symmetrically arranged on the front and rear sides of the first extrusion cavity, and each of the storage cavities is provided with two limit blocks and two support rods.

[0010] Preferably, the extrusion rod is slidably connected to the fixed column, and the bottom end of the extrusion rod is conical, the cross-sectional shapes of the sliding hole and the connecting rod are both square, and the diameter of the fireproof sealing block is larger than the diameters of the outer hole and the inner hole.

[0011] Preferably, there are two counterweights, which are symmetrically arranged on the front and rear sides of the extrusion rod, and the elastic force of the second spring is greater than the elastic force of the third spring.

[0012] Preferably, a top plate is fixedly connected between the front and rear inner walls of the movable cavity, and the top plate is located below the outer hole and the inner hole, and the top plate is used in conjunction with the extrusion rod.

[0013] Preferably, the door mirror assembly includes a lens barrel, a mounting hole, a concave mirror and a convex mirror, the lens barrel is also fixedly connected to the bottom of the rotating block, the mounting hole is arranged inside the lens barrel, a plurality of concave mirrors are arranged and are equidistantly installed inside the mounting hole, the convex mirror is also arranged inside the mounting hole, and the convex mirror is located on the front side of the concave mirror.

[0014] Preferably, the diameter of the concave mirror is the same as the diameter of the convex mirror, and the diameters of the concave mirror and the convex mirror are both larger than the diameters of the outer hole and the inner hole.

[0015] Preferably, an installation groove is provided at the edge of the front side wall of the cast aluminum door body, a fireproof sealing pad is fixedly connected to the inside of the installation groove, a fixed handle is fixedly connected to the rear side wall of the cast aluminum door body, a rotating handle is also provided on the rear side wall of the cast aluminum door body, and the fixed handle and the rotating handle are symmetrically arranged.

[0016] Preferably, the cross-sectional shape of the rotating block is fan-shaped.

[0017] Beneficial effects: The present invention provides a cast aluminum door with a door mirror fire protection device. It has the following beneficial effects:

[0018] The present invention, by arranging an active cavity, a rotating shaft, a rotating rod, a shielding plate, a toggle rod, a rotating block and a counterweight block, and a door mirror assembly and a shielding assembly are arranged at the bottom of the rotating block. When the householder needs to observe the external situation, the toggle rod controls the rotating shaft to drive the rotating block to rotate, and moves the door mirror assembly to the outer hole and the inner hole. After the observation is completed, the toggle rod is released. At this time, the shielding assembly controls the rotating shaft to drive the rotating block to rotate under the action of the counterweight block, and blocks the outer hole and the inner hole, so that the outer hole and the inner hole are always in a blocked state when not observed, effectively solving the problem that the door mirror assembly is melted by the fire when a fire comes, thereby preventing flames and smoke from spreading outward from the outer hole and the inner hole. In addition, when the external situation is not observed, the shielding assembly always blocks the outer hole and the inner hole, effectively preventing outsiders from spying on the indoor situation.

[0019] The present invention, by providing the first positioning rod, the second positioning rod, the groove, the first magnetic block and the second magnetic block, facilitates limiting the rotation angle of the rotating block, so that the door mirror assembly and the shielding assembly can be accurately rotated to the position of the outer hole and the inner hole. In addition, the provision of the first magnetic block and the second magnetic block can fix the rotating block to prevent the rotating block from rotating on its own during the process of opening or closing the door, thereby ensuring that the shielding assembly always blocks the outer hole and the inner hole.

[0020] According to the present invention, when the shielding assembly is rotated to the position of the outer hole and the inner hole, the fireproof sealing block inside it is always tightly fitted with the cast aluminum door body under the action of the third spring, thereby ensuring the sealing performance; when the shielding assembly is moved away from the position of the outer hole and the inner hole, the second spring controls the cone block, the connecting rod and the blocking block to move, and at the same time the blocking block pulls the extrusion plate to separate the fireproof sealing block from the aluminum door body, thereby avoiding damage caused by friction between the fireproof sealing block and the aluminum door body; in addition, it is convenient for the householder to control the rotation of the rotating shaft, which is more labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure from a first-view perspective of a cast aluminum door with a door mirror fire protection device proposed by the present invention;

[0022] Figure 2 A schematic diagram of the overall structure of a cast aluminum door with a door mirror fire protection device proposed by the present invention from a second viewing angle;

[0023] Figure 3 for Figure 1 A partial structural cross-sectional view;

[0024] Figure 4 This is a left side cross-sectional view of a shielding assembly of a cast aluminum door with a door mirror fire protection device proposed by the present invention;

[0025] Figure 5 This is a left side cross-sectional view of a door mirror assembly of a cast aluminum door with a door mirror fire protection device proposed by the present invention;

[0026] Figure 6 for Figure 3 Schematic diagram of the structure of A;

[0027] Figure 7 A front cross-sectional view of a partial rotating block of a cast aluminum door with a door mirror fire protection device proposed by the present invention;

[0028] Figure 8 This is a schematic cross-sectional diagram of an extruded disk of a cast aluminum door with a door mirror fire protection device proposed by the present invention.

[0029] Among them, 1. cast aluminum door body; 2. movable cavity; 3. rotating shaft; 4. rotating rod; 5. shielding plate; 6. toggle rod; 7. rotating block; 8. door mirror assembly; 9. shielding assembly; 10. counterweight block; 11. outer hole; 12. inner hole; 13. first positioning rod; 14. second positioning rod; 15. groove; 16. first magnetic block; 17. second magnetic block; 18. top plate; 19. rotating handle; 20. fixed handle; 21. installation groove; 22. fireproof sealing pad; 801, mirror barrel; 802, Mounting hole; 803, concave mirror; 804, convex mirror; 901, fixing column; 902, first extrusion cavity; 903, extrusion block; 904, telescopic rod; 905, first spring; 906, extrusion rod; 907, storage cavity; 908, fireproof sealing block; 909, limit block; 910, support rod; 911, extrusion disk; 912, sliding hole; 913, second extrusion cavity; 914, cone block; 915, second spring; 916, connecting rod; 917, third spring; 918, blocking block. DETAILED DESCRIPTION

[0030] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0031] Example: Figure 1-Figure 8As shown, the embodiment of the present invention provides a cast aluminum door with a door mirror fire prevention device, including a cast aluminum door body 1, a movable cavity 2 is arranged inside the cast aluminum door body 1, and the arrangement of the movable cavity 2 facilitates the rotating block 7 to drive the door mirror assembly 8 and the shielding assembly 9 to rotate. A rotating shaft 3 is rotatably connected to the rear wall of the movable cavity 2, and a rotating rod 4 is fixedly connected to the front end of the rotating shaft 3, and the rotating rod 4 is located at the front side of the cast aluminum door body 1. A shielding plate 5 is fixedly connected to the bottom end of the rotating rod 4, and the shielding plate 5 mainly blocks the inner hole 12, but the shielding plate 5 does not contact the cast aluminum door body 1, so as to prevent the shielding plate 5 from causing scratches on the surface of the cast aluminum door body 1 during the rotation process. A toggle rod 6 is fixedly connected to the front end of the shielding plate 5, and the toggle rod 6 is mainly used to control the shielding plate 5 to open, and at the same time control the rotating rod 4 to drive the rotating shaft 3 to rotate, thereby controlling the rotating block 7 to drive the door mirror assembly 8 and the shielding assembly 9 to rotate, and rotate the door mirror assembly 8 to the position of the outer hole 11 and the inner hole 12. The door mirror assembly 8 and the shielding assembly 9 are fixedly connected to each other on the circumferential surface of the rotating shaft 3, and the door mirror assembly 8 and the shielding assembly 9 are fixedly connected to each other on the bottom of the rotating block 7. The door mirror assembly 8 is located on the left side of the shielding assembly 9, and the shielding assembly 9 is arranged corresponding to the shielding plate 5. The door mirror assembly 8 and the shielding assembly 9 are not in contact with the inner wall of the active cavity 2. The bottom of the shielding assembly 9 is fixedly connected with a counterweight block 10. When the householder releases the toggle rod 6 after the observation, the rotating block 7 rotates again under the action of the counterweight block 10, and the shielding assembly 9 is automatically rotated to the position of the outer hole 11 and the inner hole 12, so that the outer hole 11 and the inner hole 12 are blocked, which effectively solves the problem that the door mirror assembly 8 is melted by the fire when a fire comes, thereby preventing the flame and smoke from spreading outward from the outer hole 11 and the inner hole 12. In addition, when the external situation is not observed, the shielding assembly 9 always blocks the outer hole 11 and the inner hole 12, effectively preventing people outside from spying on the indoor situation.

[0032] A first positioning rod 13 and a second positioning rod 14 are fixedly connected between the front and rear inner walls of the movable cavity 2. The main function of the first positioning rod 13 and the second positioning rod 14 is to limit the rotation angle of the rotating block 7 to ensure that the door mirror assembly 8 and the shielding assembly 9 can accurately move to the positions of the outer hole 11 and the inner hole 12. When the rotating block 7 contacts the first positioning rod 13, the shielding assembly 9 is located at the positions of the outer hole 11 and the inner hole 12. When the rotating block 7 contacts the second positioning rod 14, the door mirror assembly 8 is located at the positions of the outer hole 11 and the inner hole 12. The first positioning rod 13 is located on the left side of the rotating block 7, the second positioning rod 14 is located on the right side of the rotating block 7, the bottom of the first positioning rod 13 is fixedly connected to the second magnetic block 17, a groove 15 is provided on the left side wall of the rotating block 7, and the first magnetic block 16 is fixedly connected inside the groove 15. By providing the first magnetic block 16 and the second magnetic block 17, the rotating block 7 is mainly fixed to prevent the rotating block 7 from rotating automatically during the process of opening or closing the door, and ensure that the shielding component 9 always blocks the outer hole 11 and the inner hole 12;

[0033] An inner hole 12 is provided on the front side wall of the cast aluminum door body 1, and an outer hole 11 is provided on the rear side wall of the cast aluminum door body 1. The diameter of the outer hole 11 is the same as that of the inner hole 12, and the outer hole 11 and the inner hole 12 are provided correspondingly.

[0034] The shielding assembly 9 includes a fixed column 901, a first extrusion cavity 902, an extrusion block 903, a telescopic rod 904, a first spring 905, an extrusion rod 906, a storage cavity 907, a fireproof sealing block 908, a limit block 909, a support rod 910, an extrusion disc 911, a sliding hole 912, a second extrusion cavity 913, a cone block 914, a second spring 915, a connecting rod 916, a third spring 917 and a blocking block 918, wherein the first extrusion cavity 902 is provided, The extrusion block 903 is convenient for moving up and down. The telescopic rod 904 itself has a telescopic function. The telescopic rod 904 mainly positions the first spring 905 to prevent the first spring 905 from bending. The first spring 905 is always in a compressed state, and the elastic force of the first spring 905 is used to squeeze the extrusion block 903, so that the extrusion block 903 releases the cone block 914. The limit block 909 mainly limits the fireproof sealing block 908, thereby realizing the cone block 914. The first spring 915 is used to limit the contact between the cone block 914 and the first spring 905. The support rod 910 mainly plays a connecting role, connecting the fireproof sealing block 908 and the extrusion plate 911 together. The setting of the extrusion plate 911 is convenient for the blocking block 918 to pull the fireproof sealing block 908 to move, so that the fireproof sealing block 908 is separated from the cast aluminum door body 1, and the fireproof sealing block 908 and the cast aluminum door body 1 are prevented from being damaged by friction. In addition, it is convenient for the householder to control the rotation of the shaft 3, which is more labor-saving. The second spring 915 mainly pushes the cone block 914 out of the second extrusion cavity 913, thereby controlling the blocking block 918 to pull the fireproof sealing block 908 to move. The setting of the cone block 914 is convenient for the extrusion block 903 to extrude, so that the blocking block 918 loosens the fireproof sealing block 908. When the blocking block 918 loosens the fireproof sealing block 908, the third spring 917 squeezes the extrusion plate 911, so that the fireproof sealing block 908 is tightly fitted with the cast aluminum door body 1;

[0035] The fixed column 901 is fixedly connected to the bottom of the rotating block 7, the first extrusion chamber 902 is arranged in the middle position inside the fixed column 901, the extrusion block 903 is slidably connected to the inside of the first extrusion chamber 902, the telescopic rod 904 is fixedly connected to the top of the first extrusion chamber 902, and the bottom end of the telescopic rod 904 is fixedly connected to the extrusion block 903, the first spring 905 is sleeved on the telescopic rod 904, the extrusion rod 906 is fixedly connected to the bottom end of the extrusion block 903, and the bottom end of the extrusion rod 906 is located below the fixed column 901, the number of storage chambers 907 is provided with two, and they are symmetrically arranged on the front and rear side walls of the fixed column 901, the fireproof sealing block 908 is slidably connected to the inside of the storage chamber 907, the limit block 909 is fixedly connected to the inner wall of the storage chamber 907, and the support rod 910 is fixedly connected to the fireproof sealing block 908 near the first extrusion chamber On one side of the cavity 902, the extrusion disk 911 is fixedly connected to the other end of the support rod 910, the sliding hole 912 is arranged in the middle position of the extrusion disk 911, the number of the second extrusion cavity 913 is provided with two, and they are symmetrically arranged on the front and rear side walls of the first extrusion cavity 902, the cone block 914 is slidably connected to the inside of the first extrusion cavity 902, the connecting rod 916 is fixedly connected to the side of the cone block 914 away from the first extrusion cavity 902, the connecting rod 916 is slidably connected to the inside of the sliding hole 912, the blocking block 918 is fixedly connected to the other end of the connecting rod 916, and the blocking block 918 is located on the side of the extrusion disk 911 close to the fireproof sealing block 908, the second spring 915 and the third spring 917 are both sleeved on the connecting rod 916, the second spring 915 is located inside the second extrusion cavity 913, and the third spring 917 is located inside the storage cavity 907;

[0036] There are two fireproof sealing blocks 908, extrusion discs 911, cone blocks 914, second springs 915, connecting rods 916, third springs 917 and blocking blocks 918, which are symmetrically arranged on the front and rear sides of the first extrusion chamber 902. Two limit blocks 909 and two support rods 910 are arranged inside each storage chamber 907. The extrusion rod 906 is slidably connected to the fixed column 901, and the bottom end of the extrusion rod 906 is conical, which is convenient for the top plate 18 to squeeze the extrusion rod 906. The cross-sectional shapes of the sliding hole 912 and the connecting rod 916 are both square, the diameter of the fireproof sealing block 908 is larger than the diameters of the outer hole 11 and the inner hole 12, the number of the counterweight blocks 10 is two, and they are symmetrically arranged on the front and rear sides of the extrusion rod 906, the elastic force of the second spring 915 is larger than the elastic force of the third spring 917, and a top plate 18 is fixedly connected between the front and rear inner walls of the movable chamber 2, and the top plate 18 is located below the outer hole 11 and the inner hole 12, and the top plate 18 is used in conjunction with the extrusion rod 906;

[0037] The working principle of the shielding component 9 is as follows: when the shielding component 9 moves to the position of the outer hole 11 and the inner hole 12, the extrusion rod 906 squeezes the extrusion block 903 under the action of the top plate 18, so that the extrusion block 903 slides inside the first extrusion cavity 902, thereby pressing the cone block 914 into the second extrusion cavity 913. When the cone block 914 enters the second extrusion cavity 913, the blocking block 918 moves and releases the extrusion disk 911. At the same time, the extrusion disk 911 controls the fireproof sealing block 908 to be tightly attached to the cast aluminum door body 1 under the action of the third spring 917. It fits tightly and seals the outer hole 11 and the inner hole 12. When the shielding component 9 is moved away from the outer hole 11 and the inner hole 12, the extrusion rod 906 is moved away from the top plate 18, and the extrusion block 903 loosens the cone block 914 under the action of the first spring 905, and the cone block 914 moves out from the inside of the second extrusion cavity 913 under the action of the second spring 915, and at the same time drives the blocking block 918 to move. The blocking block 918 moves and pulls the extrusion disk 911, thereby separating the fireproof sealing block 908 from the cast aluminum door body 1 and loosening the outer hole 11 and the inner hole 12.

[0038] The door mirror assembly 8 includes a lens barrel 801, a mounting hole 802, a concave mirror 803 and a convex mirror 804. The lens barrel 801 is also fixedly connected to the bottom of the rotating block 7. The mounting hole 802 is arranged inside the lens barrel 801. There are multiple concave mirrors 803, which are equidistantly installed inside the mounting hole 802. The convex mirror 804 is also arranged inside the mounting hole 802, and the convex mirror 804 is located on the front side of the concave mirror 803. The diameter of the concave mirror 803 is the same as the diameter of the convex mirror 804, and the diameters of the concave mirror 803 and the convex mirror 804 are both larger than the diameters of the outer hole 11 and the inner hole 12. The convex mirror 804 is an eyepiece and is located on one side of the room.

[0039] A mounting groove 21 is provided at the edge of the front side wall of the cast aluminum door body 1, and a fireproof sealing pad 22 is fixedly connected inside the mounting groove 21. The fireproof sealing pad 22 and the fireproof sealing block 908 are both made of fireproof materials. A fixed handle 20 is fixedly connected to the rear side wall of the cast aluminum door body 1. A rotating handle 19 is also provided on the rear side wall of the cast aluminum door body 1, and the fixed handle 20 and the rotating handle 19 are symmetrically arranged. The cross-sectional shape of the rotating block 7 is fan-shaped. The rotating handle 19 is located indoors and is mainly used to control the movement of the lock core inside the cast aluminum door body 1 and to open the cast aluminum door body 1 (the lock inside the cast aluminum door body 1 is not specifically drawn and belongs to the prior art). The fixed handle 20 is located outdoors. In addition, a lock hole is provided next to the fixed handle 20 (from Figure 2 It can be seen in the figure) that it is convenient for the householder to unlock the door.

[0040] Working principle: When the homeowner needs to observe the outdoor situation, he first controls the shielding plate 5 to open by the toggle rod 6, and at the same time controls the rotating rod 4 to drive the rotating shaft 3 to rotate, and then controls the rotating block 7 to drive the door mirror assembly 8 and the shielding assembly 9 to rotate, and rotates the door mirror assembly 8 to the position of the outer hole 11 and the inner hole 12. After the observation is completed, release the toggle rod 6. At this time, the rotating block 7 rotates again under the action of the counterweight block 10, and automatically rotates the shielding assembly 9 to the position of the outer hole 11 and the inner hole 12, thereby blocking the outer hole 11 and the inner hole 12. At the same time, the rotating block 7 is fixed under the action of the first magnetic block 16 and the second magnetic block 17. Therefore, when a fire occurs, the door mirror assembly 8 will not be directly baked and melted by the fire.

[0041] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cast aluminum door with a door mirror fire protection device, comprising a cast aluminum door body, characterized in that: The cast aluminum door body is provided with an active cavity inside, a rotating shaft is rotatably connected to the rear wall of the active cavity, a rotating rod is fixedly connected to the front end of the rotating shaft, and the rotating rod is located at the front side of the cast aluminum door body, a shielding plate is fixedly connected to the bottom end of the rotating rod, a toggle rod is fixedly connected to the front end of the shielding plate, a rotating block is fixedly connected to the circumferential surface of the rotating shaft, a door mirror assembly and a shielding assembly are fixedly connected to the bottom of the rotating block, the door mirror assembly is located on the left side of the shielding assembly, and the shielding assembly and the shielding plate are arranged correspondingly, and a counterweight is fixedly connected to the bottom of the shielding assembly; A first positioning rod and a second positioning rod are fixedly connected between the front and rear inner walls of the movable cavity, the first positioning rod is located on the left side of the rotating block, the second positioning rod is located on the right side of the rotating block, a second magnetic block is fixedly connected to the bottom of the first positioning rod, a groove is provided on the left side wall of the rotating block, and the first magnetic block is fixedly connected inside the groove; An inner hole is arranged on the front side wall of the cast aluminum door body, and an outer hole is arranged on the rear side wall of the cast aluminum door body. The diameter of the outer hole is the same as that of the inner hole, and the outer hole and the inner hole are arranged correspondingly; The shielding assembly includes a fixed column, a first extrusion cavity, an extrusion block, a telescopic rod, a first spring, an extrusion rod, a storage cavity, a fireproof sealing block, a limit block, a support rod, an extrusion disk, a sliding hole, a second extrusion cavity, a cone block, a second spring, a connecting rod, a third spring and a blocking block. The fixed column is fixedly connected to the bottom of the rotating block, the first extrusion cavity is arranged in the middle position inside the fixed column, the extrusion block is slidably connected to the inside of the first extrusion cavity, the telescopic rod is fixedly connected to the top of the first extrusion cavity, and the bottom end of the telescopic rod is fixedly connected to the extrusion block, the first spring is sleeved on the telescopic rod, the extrusion rod is fixedly connected to the bottom end of the extrusion block, and the bottom end of the extrusion rod is located below the fixed column, the number of the storing cavities is provided with two, and they are symmetrically arranged on the front and rear side walls of the fixed column, the fireproof sealing block is slidably connected to the Connected to the inside of the storage chamber, the limit block is fixedly connected to the inner wall of the storage chamber, the support rod is fixedly connected to the side of the fireproof sealing block close to the first extrusion chamber, the extrusion plate is fixedly connected to the other end of the support rod, the sliding hole is arranged in the middle position of the extrusion plate, the number of the second extrusion chambers is two, and they are symmetrically arranged on the front and rear side walls of the first extrusion chamber, the cone block is slidably connected to the inside of the first extrusion chamber, the connecting rod is fixedly connected to the side of the cone block away from the first extrusion chamber, the connecting rod is slidably connected to the inside of the sliding hole, the blocking block is fixedly connected to the other end of the connecting rod, and the blocking block is located on the side of the extrusion plate close to the fireproof sealing block, the second spring and the third spring are both sleeved on the connecting rod, the second spring is located inside the second extrusion chamber, and the third spring is located inside the storage chamber.

2. The cast aluminum door with a door mirror fire protection device according to claim 1, characterized in that: The fireproof sealing block, extrusion plate, cone block, second spring, connecting rod, third spring and blocking block are each provided with two in number and are symmetrically arranged on the front and rear sides of the first extrusion cavity. Two limit blocks and two support rods are arranged inside each of the storage cavities.

3. The cast aluminum door with a door mirror fire protection device according to claim 1, characterized in that: The extrusion rod is slidably connected to the fixed column, and the bottom end of the extrusion rod is conical. The cross-sectional shapes of the sliding hole and the connecting rod are both square. The diameter of the fireproof sealing block is larger than the diameters of the outer hole and the inner hole.

4. The cast aluminum door with a door mirror fire protection device according to claim 1, characterized in that: There are two counterweight blocks, which are symmetrically arranged at the front and rear sides of the extrusion rod. The elastic force of the second spring is greater than the elastic force of the third spring.

5. The cast aluminum door with door mirror fire protection device according to claim 1, characterized in that: A top plate is fixedly connected between the front and rear inner walls of the movable cavity, and the top plate is located below the outer hole and the inner hole, and the top plate is used in conjunction with the extrusion rod.

6. The cast aluminum door with door mirror fire protection device according to claim 1, characterized in that: The door mirror assembly includes a lens barrel, a mounting hole, a concave mirror and a convex mirror. The lens barrel is also fixedly connected to the bottom of the rotating block. The mounting hole is arranged inside the lens barrel. There are multiple concave mirrors, which are equidistantly installed inside the mounting hole. The convex mirror is also arranged inside the mounting hole, and the convex mirror is located on the front side of the concave mirror.

7. The cast aluminum door with door mirror fire protection device according to claim 6, characterized in that: The diameter of the concave mirror is the same as the diameter of the convex mirror, and the diameters of the concave mirror and the convex mirror are both larger than the diameters of the outer hole and the inner hole.

8. The cast aluminum door with door mirror fire protection device according to claim 1, characterized in that: A mounting groove is provided at the edge of the front side wall of the cast aluminum door body, a fireproof sealing pad is fixedly connected inside the mounting groove, a fixed handle is fixedly connected to the rear side wall of the cast aluminum door body, a rotating handle is also provided on the rear side wall of the cast aluminum door body, and the fixed handle and the rotating handle are symmetrically arranged.

9. The cast aluminum door with a door mirror fire protection device according to claim 1, characterized in that: The cross-section of the rotating block is fan-shaped.

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