Explosion-proof ventilation cabinet

Abstract

The utility model discloses an explosion-proof ventilation cabinet which comprises a cabinet body, the cabinet body is provided with an operation space, the front side, facing the cabinet body, of the operation space is provided with a window, the cabinet body is provided with a through groove, the through groove is communicated with the operation space and the upper end face of the cabinet body, the cabinet body is provided with a baffle capable of ascending and descending, the baffle penetrates through the through groove and can seal the window, and the cabinet body is provided with a groove. The cabinet body is provided with a groove, the groove is located in the bottom face of the operation space, the lower end of the baffle can be inserted into the groove, the cabinet body is provided with a wire groove, the wire groove is located in the bottom face of the operation space, the wire groove penetrates through the groove, the wire groove is communicated with the operation space and the front side face of the cabinet body, and a power line penetrates through the wire groove. And a power line of experimental equipment in the operation space can be guided and fixed through the wire slot, so that the window can be completely closed by the baffle plate, and a better explosion-proof effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to experimental equipment technical field more specifically, relate to a kind of explosion-proof fume hood. BACKGROUND

[0002] In the development experiment of drug, fume hood is indispensable equipment to guarantee the safety of experiment, can discharge the various gas generated in experiment in time, can guarantee the safety of experiment, and some experiments can possibly exist the security risk of explosion, so explosion-proof becomes one of the functions that fume hood must, the existing fume hood is set to the transparent explosion-proof material baffle of lifting in front side opening, can be lowered in experimental process, prevent explosion in experiment, but since the power cord of experimental equipment needs to be connected into external socket, this will lead to the baffle cannot completely close the front side window of cabinet, there is security risk, therefore a kind of technical scheme is needed to solve the above problems. SUMMARY

[0003] The utility model aims at overcoming the deficiency of above-mentioned prior art, can completely close the window of cabinet front side, has eliminated the security risk, provides a kind of explosion-proof fume hood.

[0004] In order to achieve the above object, the utility model adopts the following technical scheme:

[0005] The utility model discloses an explosion-proof fume hood, including cabinet, the cabinet is equipped with operating space, the operating space is towards the front side of the cabinet and is equipped with window, the cabinet is equipped with through groove, the through groove is connected with the upper end surface of the operating space and the cabinet, the cabinet is installed the baffle of lifting, the baffle passes through the through groove, the baffle can close the window, the cabinet is equipped with recess, the recess is located the bottom surface of the operating space, the lower end of the baffle can be inserted into the recess, the cabinet is equipped with wire slot, the wire slot is located the bottom surface of the operating space, the wire slot passes through the recess, the wire slot is connected with the operating space and the front side of the cabinet, and the wire slot is passed through by power cord.

[0006] Further, the two side faces of the wire slot are equipped with clamping groove, the clamping groove is installed clamping strip, the clamping strip is located at least partially in the wire slot, and the clamping strip has the elastic deformation ability.

[0007] Further, the upper end surface of the clamping strip is flush with the bottom surface of the recess.

[0008] Further, the bottom surface of the operating space is equipped with the work plane that is concave downward, and the wire slot is connected with the work plane and the front side of the cabinet.

[0009] Further, the cabinet body is internally provided with a fan, the fan is located above the operation space, the top of the cabinet body is provided with an air outlet hole, the air outlet hole is communicated with the fan, the cabinet body is provided with a partition plate, the partition plate is installed on the side wall of the operation space away from the window, a gap is arranged between the partition plate and the side wall of the operation space, and the partition plate is provided with a plurality of exhaust holes.

[0010] Further, the cabinet body is internally provided with a fan, the fan is located above the operation space, the top of the cabinet body is provided with an air outlet hole, the air outlet hole is communicated with the fan, the cabinet body is provided with a partition plate, the partition plate is installed on the side wall of the operation space away from the window, a gap is arranged between the partition plate and the side wall of the operation space, and the partition plate is provided with a plurality of exhaust holes.

[0011] Further, the side wall of the connecting seat is provided with two oppositely arranged limiting grooves, the connecting column is provided with buckles corresponding to the limiting grooves, the buckles can slide along the limiting grooves, and the buckles can be elastically deformed.

[0012] Further, the top of the operation space is provided with a limiting plate between the partition plate and the side wall of the operation space.

[0013] The cabinet body has the advantages that:

[0014] The cabinet body has the advantages that: BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic view of the embodiment.

[0016] Figure 2 It is a sectional view of the embodiment. Figure 1 It is an enlarged view of position A in the middle.

[0017] Figure 3 It is a sectional view of the embodiment.

[0018] Figure 4 It is an enlarged view of position B in the middle. Figure 3

[0019] It is a sectional view of the embodiment. Figure 5 Figure 4 It is a sectional view of the embodiment.

[0020] ​Attached reference numerals: 1. Cabinet; 11. Operating space; 111. Window; 112. Guide groove; 113. Groove; 114. Working surface; 115. Cable trough; 116. Slot; 12. Through groove; 13. Air outlet; 14. Connecting seat; 141. Guide hole; 142. Limiting groove; 15. Cavity; 16. Limiting plate; 2. Baffle; 3. Partition; 31. Exhaust vent; 32. Connecting column; 321. Buckle; 4. Locking strip; 5. Fan; 6. Spring. Detailed Implementation

[0021] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] like Figure 1 , Figure 2 As shown, this embodiment discloses an explosion-proof ventilation hood, including a cabinet body 1. The cabinet body 1 has an operating space 11, and the operating space 11 has a window 111 facing the front of the cabinet body 1. The cabinet body 1 has a through groove 12, which connects the operating space 11 and the upper surface of the cabinet body 1. The cabinet body 1 is equipped with a liftable baffle 2. The cabinet body 1 has a motor-driven screw lifting mechanism inside, which drives the baffle 2 to move up and down. The baffle 2 passes through the through groove 12. The cabinet body 1 has a recess 113, which is located on the bottom surface of the operating space 11. The lower end of the baffle 2 can be inserted into the recess. When the baffle 2 is in the lowest position inside the groove 113, the lower end of the baffle 2 is in the groove 113. Guide grooves 112 are opened on both sides of the operating space 11. At least a part of the baffle 2 is located in the guide groove 112. The baffle 2 can close the window 111. The four edges of the baffle 2 can be blocked by the through groove 12, the guide groove 112, and the groove 113. When an explosion occurs inside the operating space 11 during the experiment, the baffle 2 can completely block the operating space 11, improving the safety of the experiment. The cabinet 1 is equipped with an operation button on the outside to control the raising and lowering of the baffle 2.

[0023] like Figure 1 , Figure 2As shown, the bottom surface of the operation space 11 is provided with a downwardly recessed work plane 114, which can temporarily store the leaked liquid from the experimental process, preventing the leaked liquid from directly flowing out of the window 111. The cabinet 1 is provided with a wire slot 115 located at the bottom surface of the operation space 11, which penetrates the groove 113 and communicates the operation space 11 with the front side of the cabinet 1. The wire slot 115 is provided with a clamping groove 116 on both sides, in which a clamping strip 4 is installed. The clamping strip 4 is at least partially located in the wire slot 115 and has elastic deformation capability. The clamping strip 4 is made of rubber or silicone material and is installed in the clamping groove 116 by plug-in installation. A gap is provided between the two clamping strips 4, through which the power cord can be clamped into the wire slot 115. The elastic deformation of the two clamping strips 4 restores the limit above the power cord. More preferably, the lower end of the wire slot 115 is lower than the groove 113, and the upper end surface of the clamping strip 4 is flush with the bottom surface of the groove 113. The upper end surface of the clamping strip 4 forms a plane against the baffle 2, which separates the power cord and the baffle 2 by the clamping strip 4, so that the baffle 2 cannot be interfered by the power cord and can completely close the window 111.

[0024] More preferably, the wire slot 115 communicates the work plane 114 with the front side of the cabinet 1. The power cord of the experimental equipment in the operation space 11 can pass through the wire slot 115 from one end of the wire slot 115 located on the work plane 114. The work plane 114 is lower than the lower end surface of the wire slot 115 to prevent the leaked liquid from flowing out of the wire slot 115 during the experimental process.

[0025] As shown in Figure 3 , Figure 4 , Figure 5 The cabinet 1 is provided with a fan 5 installed inside, which is located above the operation space 11. The cabinet 1 is provided with a cavity 15 located at the top of the operation space 11, and the fan 5 is located at the top of the cavity 15. The top of the cabinet 1 is provided with an air outlet hole 13 communicating with the fan 5. The cabinet 1 is provided with a partition plate 3 installed on the side wall of the operation space 11 away from the window 111. A gap is provided between the partition plate 3 and the side wall of the operation space 11. The partition plate 3 is provided with a plurality of exhaust holes 31. The fan 5 communicates with the gap between the partition plate 3 and the side wall of the operation space 11. The fan 5 can form a negative pressure in the cavity 15 to form a negative pressure suction force between the partition plate 3 and the side wall. The plurality of exhaust holes 31 of the partition plate 3 can disperse the negative pressure in the cavity 15 to the entire area covered by the partition plate 3, and the suction force generated by the fan 5 covers a more comprehensive area.

[0026] The cabinet body 1 is provided with a plurality of connecting seats 14, the partition plate 3 is provided with a plurality of connecting columns 32 corresponding to the connecting seats 14, the connecting seat 14 comprises a guide hole 141, the connecting column 32 is at least partially located in the guide hole 141, the side wall of the connecting seat 14 is provided with two oppositely arranged limiting grooves 142, the connecting column 32 is provided with a buckle 321 corresponding to the limiting groove 142, the buckle 321 can slide along the limiting groove 142, the buckle 321 can be elastically deformed, the partition plate 3 is buckled by the connecting column 32 and the connecting seat 14 during installation, the connecting column 32 is in sliding connection with the connecting seat 14, the spring 6 is installed in the guide hole 141, the spring 6 abuts against the connecting column 32, the partition plate 3 can be close to or away from the side wall of the operation space 11 where the partition plate 3 is installed, when an explosion occurs inside the operation space 11, the partition plate 3 is subjected to the buffering effect of the spring 6 and is not easy to deform, so that the deformation of the partition plate 3 caused by the poor air suction efficiency of the fan 5 can be prevented.

[0027] The top of the operation space 11 is provided with a limiting plate 16, the limiting plate 16 is located between the partition plate 3 and the side wall of the operation space 11 where the partition plate 3 is installed, the limiting plate 16 can limit the upper edge of the partition plate 3, prevent the partition plate 3 from being too close to the side wall where it is installed, and block the gap between the upper end of the limiting plate 16 and the top of the operation space 11, so as to guide the suction force of the fan 5 downward.

[0028] The above only describes preferred embodiments of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solution falling within the concept of the present application belongs to the protection scope of the present application. It should be noted that, for ordinary technical personnel in the technical field, some improvements and decorations without departing from the principle of the present application are also considered to be within the protection scope of the present application.

Claims

1. An explosion-proof fume hood, characterized by, The cabinet (1) is provided with an operation space (11), a window (111) is opened on the front side of the cabinet (1), the cabinet (1) is provided with a through slot (12) which communicates the operation space (11) and the upper end surface of the cabinet (1), the cabinet (1) is installed with a liftable baffle (2) which penetrates the through slot (12), the baffle (2) can close the window (111), the cabinet (1) is provided with a recess (113) which is located on the bottom surface of the operation space (11), the lower end of the baffle (2) can be inserted into the recess (113), the cabinet (1) is provided with a wire slot (115) which is located on the bottom surface of the operation space (11), the wire slot (115) penetrates the recess (113), the wire slot (115) communicates the operation space (11) and the front side of the cabinet (1), and the wire slot (115) is used for passing power lines.

2. The explosion-proof fume hood according to claim 1, wherein, The two side surfaces of the wire slot (115) are provided with clamping grooves (116), the clamping grooves (116) are installed with clamping strips (4), the clamping strips (4) are located at least partially in the wire slot (115), and the clamping strips (4) have elastic deformation capacity.

3. The explosion-proof fume hood according to claim 2, wherein, The upper end surface of the clamping strip (4) is flush with the bottom surface of the recess (113).

4. The explosion-proof fume hood according to claim 1, wherein, The bottom surface of the operation space (11) is provided with a downwardly recessed work plane (114), and the wire slot (115) communicates the work plane (114) and the front side of the cabinet (1).

5. The explosion-proof fume hood according to claim 1, wherein, The inside of the cabinet (1) is installed with a fan (5), the fan (5) is located above the operation space (11), the top of the cabinet (1) is provided with an air outlet hole (13) which communicates the fan (5), the cabinet (1) is installed with a partition plate (3), the partition plate (3) is installed on the side wall of the operation space (11) away from the window (111), a gap is formed between the partition plate (3) and the side wall of the operation space (11), the partition plate (3) is provided with a plurality of exhaust holes (31), and the fan (5) communicates the gap between the partition plate (3) and the side wall of the operation space (11).

6. The explosion-proof fume hood according to claim 5, wherein, The cabinet (1) is installed with a plurality of connecting seats (14), the partition plate (3) is provided with a plurality of connecting columns (32) corresponding to the connecting seats (14), the connecting seat (14) comprises a guide hole (141), the connecting column (32) is located at least partially in the guide hole (141), the connecting column (32) is in sliding connection with the connecting seat (14), a spring (6) is installed in the guide hole (141) and abuts against the connecting column (32), and the partition plate (3) can be close to or away from the side wall of the operation space (11) on which the partition plate (3) is installed.

7. The explosion-proof fume hood according to claim 6, wherein, The side wall of the connecting seat (14) is provided with two oppositely arranged limiting grooves (142), the connecting column (32) is provided with a buckle (321) corresponding to the limiting groove (142), the buckle (321) can slide along the limiting groove (142), and the buckle (321) can be elastically deformed.

8. The explosion-proof fume hood according to claim 5, wherein, The top of the operation space (11) is provided with a limiting plate (16), and the limiting plate (16) is located between the partition plate (3) and the side wall of the operation space (11) on which the partition plate (3) is installed.

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