Fireproof safety cabinet

Abstract

The invention relates to the technical field of fireproof cabinets, in particular to a fireproof safety cabinet. The safety cabinet comprises a cabinet body and a cabinet door; the cabinet body comprises a top plate, a left side plate, a right side plate, a bottom plate and a back plate; one side face of the cabinet body is of an open structure. The cabinet door is installed on one side face of the open structure of the cabinet body. The left side plate and the right side plate are both made of first plates; the first plate is of a multi-layer structure and comprises at least one layer of metal plate, two layers of fireproof plates and one layer of air interlayer; an isolation plate is arranged in the cabinet body, and the isolation plate is arranged below the top plate; and a cabinet top cavity is formed among the isolation plate, the top plate, the left side plate, the right side plate and the back plate. The air interlayers in the left and right side plates can not only improve the fireproof performance of the left and right side plates, but also realize an air circulation system in the safety cabinet. In a normal state, the indoor temperature storage standard of the safety cabinet is realized; and when a fire occurs, the fire-resistant time of the safety cabinet is prolonged.

Description

Technical Field

[0001] The invention belongs to the technical field of fireproof cabinets, and in particular relates to a fireproof safety cabinet. Background Art

[0002] Fireproof cabinets are an important part of safe storage. According to their application areas, they can be divided into flammable liquid fireproof cabinets, flammable liquid fireproof cabinets and weakly corrosive flammable liquid fireproof cabinets.

[0003] The current EU EN14470-1 standard requires that the test be conducted at 900-1000 degrees Celsius. This standard is subdivided into different requirements for fire resistance of 30 minutes, 60 minutes and 90 minutes to ensure that the safety of stored items can be effectively protected in the event of a fire.

[0004] However, as the application scenarios continue to expand, the performance requirements for fireproof cabinets are also increasing. Increasing the fire resistance of fireproof cabinets has always been an important part of fireproof cabinet research. Summary of the invention

[0005] In view of the above problems, the present invention provides a fireproof safety cabinet, which comprises a cabinet body and a cabinet door;

[0006] The cabinet body comprises a top plate, a left side plate, a right side plate, a bottom plate and a back plate; one side of the cabinet body is an open structure; the cabinet door is installed on one side of the open structure of the cabinet body;

[0007] The left side plate and the right side plate are both made of the first plate; the top plate and the bottom plate are both made of the second plate; the back plate is made of the first plate or the second plate;

[0008] The first plate is a multi-layer structure, including at least one metal plate, two fireproof plates and an air interlayer;

[0009] The second plate material is a multi-layer structure, including at least one metal plate and two fireproof plates;

[0010] An isolation plate is arranged in the cabinet body, and the isolation plate is arranged below the top plate; a cabinet top cavity is formed between the isolation plate, the top plate, the left side plate, the right side plate and the back plate.

[0011] Furthermore, the cabinet door includes at least one layer of metal plate and three layers of fireproof board.

[0012] Furthermore, the cabinet door includes two layers of metal plates and three layers of fireproof panels, wherein one layer of metal plate is located at the outermost side of the cabinet door, and the other layer of metal plate is located between any two layers of fireproof panels; and the two layers of metal plates are an integrally formed structure after the metal plates are bent.

[0013] Furthermore, the safety cabinet also includes a door closing assembly, which is arranged in the cabinet top cavity and is connected to the cabinet door and the cabinet body respectively; when the trigger condition is met, the door closing assembly controls the cabinet door to close.

[0014] Furthermore, the door closing assembly includes a door closer, a pull rope and a fire-retardant pull rod assembly; the fire-retardant pull rod assembly is installed in the cabinet top cavity, one end of the door closer is installed on the inner side of the cabinet door, and the other end is installed in the cabinet top cavity; the fire-retardant pull rod assembly is connected to one end of the door closer located on the cabinet door through a pull rope.

[0015] Furthermore, the safety cabinet further comprises an air circulation system, which comprises two fire dampers, both of which are arranged in the cabinet top cavity; one end of each fire damper passes through the top plate and can be connected to the outside of the cabinet, and the other end is installed on the isolation plate;

[0016] The isolation plate comprises two layers of decorative plates and an air interlayer arranged between the two layers of decorative plates; two ends of the air interlayer in the isolation plate are respectively connected with the air interlayers in the left plate and the right plate; each fire damper is installed at one end of the isolation plate and is connected with the air interlayer in the isolation plate.

[0017] Furthermore, a lower vent connected to the internal air layer is provided at the lower portion of the inner panel surface of the left panel; an upper vent connected to the internal air layer is provided at the upper portion of the inner panel surface of the right panel.

[0018] Furthermore, a supporting baffle is provided at the bottom of the cabinet; the supporting baffle includes three vertically arranged baffles, which are respectively installed on both sides and the front of the bottom of the cabinet; and the three baffles are spliced ​​and connected in sequence.

[0019] Furthermore, a sealing layer is provided on the edge of the open structure on the cabinet.

[0020] The beneficial effects of the present invention are:

[0021] 1. By setting air interlayers in the left and right side panels, the fireproof performance of the left and right side panels is improved without increasing the cost of fireproof materials.

[0022] 2. When the cabinet door is closed, the inner panel of the cabinet door fits with one side of the isolation board, and the cabinet top cavity and the storage space in the cabinet are isolated from each other. The isolation board, cabinet top cavity and top plate cooperate to achieve the fireproof effect of the first plate. The cabinet top cavity is equivalent to the air interlayer in the first plate, which improves the fireproof performance of the top plate to the same level as the fireproof performance of the left and right plates.

[0023] 3. The support baffle can not only raise the height of the cabinet, but also form a barrier at the bottom of the cabinet, forming an air layer at the bottom of the cabinet, which can effectively prevent liquid flammable materials from flowing directly onto the cabinet and burning, further improving the fire resistance of the safety cabinet.

[0024] 4. An air circulation system is built inside the cabinet to keep the temperature inside the cabinet at room temperature and meet storage requirements. In addition, an air interlayer is set inside the isolation board, and a cabinet top cavity is set on the top of the cabinet, which is equivalent to setting two layers of air interlayers on the top of the cabinet, further improving the fire resistance of the cabinet top.

[0025] 5. The air interlayer in the left and right side panels can not only improve the fireproof performance of the left and right side panels, but also realize the air circulation system in the safety cabinet. Under normal conditions, the indoor temperature storage standard of the safety cabinet is achieved; when a fire occurs, the fire resistance time of the safety cabinet is extended. The fireproof safety cabinet provided by the present invention has a fire resistance time of more than 120 minutes in the EU EN14470-1 fire resistance combustion test environment specification.

[0026] Other features and advantages of the present invention will be described in the following description, and partly become obvious from the description, or be understood by implementing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 A front view showing an open state of a safety cabinet according to an embodiment of the present invention is shown;

[0029] Figure 2 A front cross-sectional view of a safety cabinet according to an embodiment of the present invention is shown;

[0030] Figure 3 A top cross-sectional view of a safety cabinet according to an embodiment of the present invention is shown;

[0031] Figure 4 Shows Figure 2 A magnified schematic diagram of the middle part;

[0032] Figure 5 Shows Figure 2 The enlarged schematic diagram of the middle B part;

[0033] Figure 6 Shows Figure 3 Enlarged schematic diagram of middle C part;

[0034] Figure 7 A schematic diagram showing the structure of a door closing assembly according to an embodiment of the present invention is shown.

[0035] Figure 8 Shows Figure 2 The enlarged schematic diagram of the middle D part;

[0036] Fig. 9 A schematic diagram of the structure of the left side plate of an embodiment of the present invention is shown;

[0037] Fig.10 A schematic diagram of the structure of the right side panel of an embodiment of the present invention is shown;

[0038] Fig.11 A schematic diagram of the air circulation path inside the safety cabinet of an embodiment of the present invention is shown.

[0039] In the figure: 1-cabinet body; 101-top plate; 102-left side plate; 103-right side plate; 104-bottom plate; 105-back plate; 2-cabinet door; 3-door closing assembly; 301-door closer; 302-pull rope; 303-fire-blocking pull rod assembly; 4-fire-blocking damper; 5-metal plate; 6-fireproof board; 7-air interlayer; 8-decorative board; 9-isolation board; 10-cabinet top cavity; 11-storage partition; 12-magnetic door stopper; 13-lower vent; 14-upper vent; 15-support baffle. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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.

[0041] The present invention provides a fireproof safety cabinet, such as Figure 1 , Figure 2 and Figure 3 As shown, the safety cabinet includes a cabinet body 1 and a cabinet door 2.

[0042] The cabinet body 1 is a rectangular parallelepiped as a whole, including a top plate 101, a left side plate 102, a right side plate 103, a bottom plate 104 and a back plate 105; one side of the cabinet body 1 is an open structure; the cabinet door 2 is installed on one side of the open structure of the cabinet body 1.

[0043] Furthermore, the left side plate 102 and the right side plate 103 are both made of a first plate; the first plate is a multi-layer structure, including at least one layer of metal plate 5, two layers of fireproof board 6 and one layer of air interlayer 7.

[0044] For example, Figure 4 As shown, the first plate includes a metal plate 5, two fireproof plates 6, an air interlayer 7 and a decorative plate 8 stacked in sequence; wherein the metal plate 5 is located on the outside of the cabinet 1, and the decorative plate 8 is located on the inside of the cabinet 1.

[0045] It should be noted that the number of layers of fireproof panels 6 in the first plate can be greater than or equal to 2, and the position of the air interlayer 7 in the first plate is not limited. For example, the first plate includes a metal plate 5, three fireproof panels 6 and an air interlayer 7; wherein the metal plate 5 is located at the outermost layer; and the air interlayer 7 can be arranged between any two layers of fireproof panels 6.

[0046] By providing air interlayers between the left and right side panels, the fireproof performance of the left and right side panels is improved without increasing the cost of fireproof materials.

[0047] Furthermore, the top plate 101 and the bottom plate 104 are both made of a second plate material; the second plate material is a multi-layer structure, including at least one layer of metal plate 5 and two layers of fireproof plate 6.

[0048] For example, Figure 5 As shown, the second plate material includes a metal plate 5 , two fireproof plates 6 and a decorative plate 8 which are stacked in sequence; wherein the metal plate 5 is located on the outside of the cabinet 1 , and the decorative plate 8 is located on the inside of the cabinet 1 .

[0049] Further, such as Figure 1 As shown, an isolation plate 9 is arranged in the cabinet body 1, and the isolation plate 9 is arranged below the top plate 101; the cabinet top cavity 10 is formed between the isolation plate 9, the top plate 101, the left side plate 102, the right side plate 103 and the back plate 105; the storage space is formed between the isolation plate 9, the bottom plate 104, the left side plate 102, the right side plate 103 and the back plate 105.

[0050] Specifically, a plurality of storage partitions 11 may be provided in the cabinet 1 for storing articles.

[0051] When the cabinet door is closed, the inner panel of the cabinet door fits with one side of the isolation board, and the cabinet top cavity and the storage space in the cabinet are isolated from each other. The isolation board, the cabinet top cavity and the top plate cooperate to achieve the fireproof effect of the first plate. The cabinet top cavity is equivalent to the air interlayer in the first plate, which improves the fireproof performance of the top plate to the same level as the fireproof performance of the left and right plates.

[0052] It should be noted that the base plate is generally placed on the ground, and the ground has a fire retardant effect, so there is no need to set an air layer in the base plate.

[0053] Preferably, Figure 1 As shown, a support baffle 15 is provided at the bottom of the cabinet 1; the support baffle 15 includes three vertically arranged baffles, which are respectively installed on both sides and the front of the bottom of the cabinet 1; and the three baffles are spliced ​​and connected in sequence.

[0054] The support baffle not only raises the height of the cabinet, but also forms a fence at the bottom of the cabinet. When the back of the safety cabinet is placed against the wall, an air layer is formed at the bottom of the cabinet. The fence can effectively prevent liquid flammables from flowing directly onto the cabinet and burning, further improving the fire resistance of the safety cabinet.

[0055] Further preferably, the baffle located on the bottom front of the cabinet 1 is a detachable structure.

[0056] The front baffle plays a decorative and protective role, and when transported by a forklift, the front baffle can be removed to facilitate forklift operation.

[0057] Further preferably, the supporting baffle 15 includes four vertically arranged baffles, which are respectively installed on four side surfaces of the bottom of the cabinet 1; and the four baffles are spliced ​​and connected in sequence.

[0058] When the safety cabinet is not set against the wall, the support baffle can not only raise the height of the cabinet, but also form a circular enclosure at the bottom of the cabinet, forming an air layer at the bottom of the cabinet. The enclosure can effectively prevent liquid flammables from flowing directly onto the cabinet and burning, further improving the fire resistance of the safety cabinet.

[0059] Furthermore, the back plate 105 can be made of the first plate or the second plate.

[0060] For example, if the back plate 105 of the safety cabinet is placed against a wall, the back plate 105 can be made of the second plate material because the wall has a fire retardant effect; if the back plate 105 of the safety cabinet is not placed against the wall, the back plate 105 can be made of the first plate material to ensure the fireproof effect of one side of the back plate 105 of the safety cabinet.

[0061] It should be noted that the outermost metal plates 5 of the top plate 101 , the left plate 102 , the right plate 103 , the bottom plate 104 and the back plate 105 are connected by welding, and there are no welding spots or welds at the connections between adjacent metal plates 5 .

[0062] Furthermore, the cabinet door 2 includes at least one layer of metal plate 5 and three layers of fireproof board 6 .

[0063] For example, Figure 6As shown, the cabinet door 2 includes a metal plate 5, three fireproof plates 6 and a decorative plate 8 which are stacked in sequence; wherein the metal plate 5 is located at the outermost side of the cabinet door 2, and the decorative plate 8 is located at the innermost side of the cabinet door 2.

[0064] As the cabinet door needs to be opened and closed frequently, the structural rigidity is required to be high. Therefore, no air interlayer is used in the cabinet door, but the number of fireproof board layers is increased to ensure the fireproof performance and overall rigidity of the cabinet door.

[0065] The safety cabinet provided by the present invention has excellent overall fireproof performance. The panels on the main fire-exposed surface of the cabinet are all provided with air interlayers to improve their fireproof performance; the top plate cooperates with the isolation plate and the cabinet top cavity to achieve the fireproof effect of the first plate; the cabinet door adopts more than three layers of fireproof board to ensure the fireproof performance and overall rigidity of the cabinet door.

[0066] Preferably, the cabinet door 2 includes two layers of metal plates 5 and three layers of fireproof panels 6, wherein one layer of metal plates 5 is located at the outermost side of the cabinet door 2, and the other layer of metal plates 5 is located between any two layers of fireproof panels 6; and the two layers of metal plates 5 are an integrally formed structure after the metal plates are bent.

[0067] For example, Figure 6 As shown, the cabinet door 2 includes three layers of fireproof boards 6 stacked in sequence. A metal plate layer is wrapped around the surface of the outermost fireproof board 6, so that a layer of metal plate 5 is provided on both sides of the outermost fireproof board 6, that is, the cabinet door 2 includes two layers of metal plates 5.

[0068] Since the door handle is usually installed on the outermost metal plate of the cabinet door, when the cabinet door is opened and closed, a push-pull force will be generated on the outermost metal plate. By sandwiching a metal plate between the multiple layers of fireproof panels of the cabinet door, and the metal plate and the outermost metal plate of the cabinet door are an integrated structure, the inner metal plate will evenly disperse the push-pull force transmitted from the door handle, so that the overall force of the cabinet door is balanced. The wear of the outermost metal plate is reduced, and the effective opening and closing times and service life of the cabinet door are increased.

[0069] It should be noted that the metal plate 5 can be made of but not limited to carbon steel plate, galvanized plate, stainless steel plate or cold-rolled plate; the fireproof board 6 can be made of but not limited to perlite board, fireproof gypsum board, calcium silicate fiberboard or glass wool board; the decorative board 8 can be made of but not limited to density board, gypsum board, plywood, integrated wood or blockboard.

[0070] Furthermore, the safety cabinet also includes a door closing assembly 3, which is arranged in the cabinet top cavity 10 and is connected to the cabinet door 2 and the cabinet body 1 respectively; when the trigger condition is met, the door closing assembly 3 controls the cabinet door 2 to close.

[0071] Specifically, Figure 7As shown, the door closing assembly 3 includes a door closer 301, a pull rope 302 and a fire-retardant pull rod assembly 303; the fire-retardant pull rod assembly 303 is installed in the cabinet top cavity 10, one end of the door closer 301 is installed on the inner side of the cabinet door 2, and the other end is installed in the cabinet top cavity 10; the fire-retardant pull rod assembly 303 is connected to one end of the door closer 301 located on the cabinet door 2 through the pull rope 302.

[0072] Under normal conditions, when the cabinet door 2 is opened, the connecting rod of the door closer 301 will rotate along with the cabinet door 2. When the temperature sensing device in the fire-retardant pull rod assembly 303 detects that the ambient temperature exceeds the preset value, the pull rope 302 will be controlled to pull the door closer 301 installed at one end of the cabinet door 2 to close the cabinet door 2. This avoids the risk of operators failing to close the cabinet door 2 in time when a fire breaks out.

[0073] Furthermore, the door closing assembly 3 also includes a magnetic door catch 12 , and the magnetic door catch 12 is installed in the cabinet top cavity 10 .

[0074] The magnetic door stopper 12 can generate magnetic attraction to the metal plate 5 on the cabinet door 2, which can ensure that the cabinet door 2 is completely closed. In addition, when a fire occurs, the fire-blocking pull rod assembly 303 controls the cabinet door 2 to automatically close, and the magnetic door stopper 12 can accelerate the cabinet door 2 to close completely.

[0075] Furthermore, a sealing layer is provided at the edge of the open structure on the cabinet 1. The sealing layer is made of a heat-expandable sealing material. In the event of a fire, the sealing layer will expand and fill the gap between the cabinet door and the cabinet, blocking external flames and heat from entering the cabinet.

[0076] Further, such as Figure 1 As shown, the safety cabinet also includes an air circulation system, which includes two fire dampers 4, both of which are arranged in the cabinet top cavity 10; one end of each fire damper 4 passes through the top plate 101 and can be connected to the outside of the cabinet body 1, and the other end is installed on the isolation plate 9.

[0077] Specifically, Figure 8 As shown, the isolation plate 9 includes two layers of decorative plates 8 and an air interlayer 7 disposed between the two layers of decorative plates 8. The two ends of the air interlayer 7 in the isolation plate 9 are respectively connected to the air interlayer 7 in the left plate 102 and the right plate 103; one end of each fire damper 4 installed on the isolation plate 9 is connected to the air interlayer 7 in the isolation plate 9.

[0078] like Fig. 9 and Fig.10 As shown, the lower portion of the inner panel surface of the left side panel 102 is provided with a lower vent 13 communicating with the internal air interlayer 7 thereof; the upper portion of the inner panel surface of the right side panel 103 is provided with an upper vent 14 communicating with the internal air interlayer 7 thereof.

[0079] like Fig.11 As shown, in a normal environment, both fire dampers 4 are in an open state, and external air enters the cabinet 1 through a path of a fire damper 4, an air interlayer 7 in the isolation plate 9, an air interlayer 7 in the left plate 102, and a lower vent 13; and then is discharged from the cabinet 1 through a path of an upper vent 14, an air interlayer 7 in the right plate 103, an air interlayer 7 in the isolation plate 9, and another fire damper 4. When a fire occurs, when the fire damper 4 senses that the temperature exceeds a threshold, the fire damper 4 is closed. External air cannot enter the cabinet 1.

[0080] An air circulation system is built inside the cabinet to keep the temperature inside the cabinet at room temperature, meeting storage requirements. In addition, an air interlayer is set inside the isolation board, and a cabinet top cavity is set on the top of the cabinet, which is equivalent to setting two layers of air interlayers on the top of the cabinet, further improving the fire resistance of the cabinet top.

[0081] The air interlayer in the left and right side panels can not only improve the fireproof performance of the left and right side panels, but also realize the air circulation system in the safety cabinet. Under normal conditions, the indoor temperature storage standard of the safety cabinet is achieved; in the event of a fire, the fire resistance time of the safety cabinet is extended. The fireproof safety cabinet provided by the present invention has a fire resistance time of more than 120 minutes in the EU EN14470-1 fire resistance combustion test environment specification.

[0082] As shown in Table 1, after the fireproof safety cabinet provided by the present invention burns in a continuously heated environment of 23-1050°C for 120 minutes, the maximum temperature inside the cabinet is 192°C, which complies with the EU EN14470-1 standard.

[0083] Table 1 Safety cabinet combustion test data

[0084]

[0085] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fireproof safety cabinet, characterized in that: The safety cabinet comprises a cabinet body (1) and a cabinet door (2); The cabinet (1) comprises a top plate (101), a left side plate (102), a right side plate (103), a bottom plate (104) and a back plate (105); one side of the cabinet (1) is an open structure; the cabinet door (2) is installed on one side of the open structure of the cabinet (1); The left side plate (102) and the right side plate (103) are both made of the first plate; the top plate (101) and the bottom plate (104) are both made of the second plate; the back plate 105 is made of the first plate or the second plate; The first plate material is a multi-layer structure, comprising at least one metal plate (5), two fireproof plates (6) and an air interlayer (7); The second plate material is a multi-layer structure, comprising at least one layer of metal plate (5) and two layers of fireproof plate (6); An isolation plate (9) is arranged in the cabinet body (1), and the isolation plate (9) is arranged below the top plate (101); a cabinet top cavity (10) is formed between the isolation plate (9), the top plate (101), the left side plate (102), the right side plate (103) and the back plate (105).

2. A fireproof safety cabinet according to claim 1, characterized in that: The cabinet door (2) comprises at least one layer of metal plate (5) and three layers of fireproof board (6).

3. A fireproof safety cabinet according to claim 2, characterized in that: The cabinet door (2) comprises two layers of metal plates (5) and three layers of fireproof panels (6), wherein one layer of metal plates (5) is located at the outermost side of the cabinet door (2), and another layer of metal plates (5) is located between any two layers of fireproof panels (6); and the two layers of metal plates (5) are an integrally formed structure after the metal plates are bent.

4. A fireproof safety cabinet according to claim 1, characterized in that: The safety cabinet further comprises a door closing assembly (3), wherein the door closing assembly (3) is arranged in a cabinet top cavity (10), and the door closing assembly (3) is respectively connected to the cabinet door (2) and the cabinet body (1); when a trigger condition is met, the door closing assembly (3) controls the cabinet door (2) to close.

5. A fireproof safety cabinet according to claim 4, characterized in that: The door closing assembly (3) comprises a door closer (301), a pull rope (302) and a fire-retardant pull rod assembly (303); the fire-retardant pull rod assembly (303) is installed in the cabinet top cavity (10); one end of the door closer (301) is installed on the inner side of the cabinet door (2), and the other end is installed in the cabinet top cavity (10); the fire-retardant pull rod assembly (303) is connected to one end of the door closer (301) located on the cabinet door (2) via the pull rope (302).

6. A fireproof safety cabinet according to claim 1, characterized in that: The safety cabinet further comprises an air circulation system, wherein the air circulation system comprises two fire dampers (4), and the two fire dampers (4) are both arranged in the cabinet top cavity (10); one end of each fire damper (4) passes through the top plate (101) and can be communicated with the outside of the cabinet body (1), and the other end is mounted on the isolation plate (9); The isolation plate (9) comprises two layers of decorative plates (8) and an air interlayer (7) arranged between the two layers of decorative plates (8); two ends of the air interlayer (7) in the isolation plate (9) are respectively connected to the air interlayer (7) in the left plate (102) and the right plate (103); one end of each fire damper (4) installed on the isolation plate (9) is connected to the air interlayer (7) in the isolation plate (9).

7. A fireproof safety cabinet according to claim 6, characterized in that: The lower portion of the inner plate surface of the left side plate (102) is provided with a lower vent (13) communicating with the internal air interlayer (7) thereof; the upper portion of the inner plate surface of the right side plate (103) is provided with an upper vent (14) communicating with the internal air interlayer (7) thereof.

8. A fireproof safety cabinet according to claim 1, characterized in that: The cabinet (1) is provided with a supporting baffle (15) at the bottom; the supporting baffle (15) comprises three vertically arranged baffles, which are respectively installed on the two side edges and the front of the bottom of the cabinet (1); and the three baffles are spliced ​​and connected in sequence.

9. A fireproof safety cabinet according to claim 1, characterized in that: The edge of the open structure on the cabinet (1) is provided with a sealing layer.

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