Biological safety cabinet with dust cover

Abstract

The utility model discloses a biosafety cabinet with a dust cover, which comprises positioning support blocks fixedly connected to the left side and the right side of the biosafety cabinet, the surfaces of the two positioning support blocks are rotatably connected with positioning connecting pieces, and the dust cover is fixedly connected between the two positioning connecting pieces. The left side of the dust cover is fixedly connected with a thickened connecting block, the rear side of the thickened connecting block is welded with a round head plate, the left side of the biological safety cabinet is fixedly connected with a perforated L-shaped plate through a bolt, and an inner cavity of the perforated L-shaped plate is slidably connected with a round rod. The dust cover pushes the round rod to slide backwards, then the resilience force of the spring pushes the round rod and the inclined surface block to reset, and then the positions of the round head plate and the dust cover are fixed, so that the purpose that the operation window is subjected to dust prevention treatment before and after use, and the interior of the biological safety cabinet can be better kept in a clean state can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the biological safety cabinet technical field, especially, it is a kind of biological safety cabinet with dust cover. BACKGROUND

[0002] Biological safety cabinet is the box-shaped negative pressure air purification safety equipment used when handling dangerous microorganisms, and is a biological safety protection device designed to avoid infectious aerosols and splashes generated during exposure operation from causing harm to people, samples and the environment.

[0003] The biological safety cabinet is mainly applied to medical health, pharmaceutical, scientific research and other fields, and the dust cover is added to the operation window of the biological safety cabinet, so that the operation window of the biological safety cabinet is protected from dust, and the cooperation of the round head plate, round rod and inclined surface block can fix the position of the dust cover after unfolding, avoid the deflection of the dust cover during experimental operation, and perform dust treatment on the operation window before and after use to keep the interior of the biological safety cabinet clean. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a biological safety cabinet with dust cover, which can perform dust treatment on the operation window before and after use to keep the interior of the biological safety cabinet clean, to solve the above background technical problems.

[0005] The technical scheme for solving the above technical problems is as follows: a biological safety cabinet with dust cover includes positioning support blocks fixedly connected to the left and right sides of the biological safety cabinet; positioning connecting pieces are rotatably connected to the surfaces of the two positioning support blocks; a dust cover is fixedly connected between the two positioning connecting pieces; a thickened connecting block is fixedly connected to the left side of the dust cover; a round head plate is welded to the rear side of the thickened connecting block; an open hole L-shaped plate is fixedly connected to the left side of the biological safety cabinet by bolts; a round rod is slidably connected in the inner cavity of the open hole L-shaped plate; an inclined surface block is fixedly connected to the front end of the round rod; a spring is welded between the rear side of the inclined surface block and the front side of the open hole L-shaped plate; and a dust plate is slidably connected in the inner cavity of the biological safety cabinet.

[0006] Preferably, limit heads are fixedly connected to the left and right sides of the top of the dust plate; and two pull handles are fixedly connected to the front side of the dust plate.

[0007] Preferably, a rotating round wheel is rotatably connected to the surface of the round head plate; and the surface of the rotating round wheel is slidably connected to the surface of the inclined surface block.

[0008] Preferably, the rear end of the round rod is fixedly connected with a limiting disc, and the rear end of the limiting disc is fixedly connected with a leverage ring.

[0009] Preferably, the bottom of the biological safety cabinet is fixedly connected with a lifting support frame through bolts.

[0010] Preferably, the bottom of the lifting support frame is provided with universal wheels, and the bottom of the lifting support frame is fixedly connected with a reinforcing support leg through bolts.

[0011] The beneficial effects of the present application are as follows:

[0012] 1. The dust cover is upwardly rotated to push the round rod to slide backward, and then the rebound force of the spring pushes the round rod and the inclined block to reset, thereby fixing the positions of the round head plate and the dust cover, so that the dustproof treatment is performed on the operation window before and after use, and the interior of the biological safety cabinet can be better kept in a clean state.

[0013] 2. The round head plate can slide on the surface of the inclined block, the friction between the surface of the round head plate and the surface of the inclined block is reduced, and the dust cover can be more smoothly turned over.

[0014] 3. The limiting disc is arranged, so that the sliding range of the round rod is limited, and the round rod can be prevented from being separated from the inner cavity of the L-shaped plate. BRIEF DESCRIPTION OF DRAWINGS

[0015] Among them:

[0016] Figure 1 is a left view schematic diagram of an embodiment of the present application;

[0017] Figure 2 is a right view schematic diagram of an embodiment of the present application;

[0018] Figure 3 is a left view schematic diagram of an embodiment of the present application;

[0019] Figure 4 is an embodiment of the present application Figure 3 is a local enlarged view of point A in the embodiment of the present application.

[0020] In the drawings, the components represented by the numbers are listed as follows:

[0021] 1, biological safety cabinet, 2, positioning support block, 3, positioning connecting piece, 4, dust cover, 5, thickened connecting block, 6, round head plate, 7, perforated L-shaped plate, 8, round rod, 9, inclined block, 10, spring, 11, dustproof plate, 12, limiting head, 13, pull handle, 14, rotating round wheel, 15, limiting round piece, 16, leverage ring, 17, lifting support frame, 18, universal wheel, 19, reinforced support foot. DETAILED DESCRIPTION

[0022] Hereinafter, an embodiment of the biological safety cabinet with dust cover of the utility model will be described with reference to the drawings.

[0023] Example one:

[0024] Figures 1-4 The biological safety cabinet with dust cover of an embodiment of the utility model is shown, which comprises: positioning support blocks 2 fixedly connected to the left and right sides of the biological safety cabinet 1; the surfaces of the two positioning support blocks 2 are rotatably connected with positioning connecting pieces 3, and the two positioning connecting pieces 3 are fixedly connected with a dust cover 4; the left side of the dust cover 4 is fixedly connected with a thickened connecting block 5, and the rear side of the thickened connecting block 5 is welded with a round head plate 6; the left side of the biological safety cabinet 1 is fixedly connected with a perforated L-shaped plate 7 through bolts; the inner cavity of the perforated L-shaped plate 7 is slidably connected with a round rod 8, and the front end of the round rod 8 is fixedly connected with an inclined block 9; the rear side of the inclined block 9 and the front side of the perforated L-shaped plate 7 are welded with a spring 10; the inner cavity of the biological safety cabinet 1 is slidably connected with a dustproof plate 11, and the left and right sides of the top of the dustproof plate 11 are fixedly connected with limiting heads 12; the front side of the dustproof plate 11 is fixedly connected with two pull handles 13; the surface of the round head plate 6 is rotatably connected with a rotating round wheel 14, and the surface of the rotating round wheel 14 is slidably connected with the surface of the inclined block 9; through the setting of the rotating round wheel 14, the friction between the surface of the round head plate 6 and the surface of the inclined block 9 can be reduced during the sliding process of the round head plate 6 on the surface of the inclined block 9, and the dust cover 4 can be turned over more smoothly.

[0025] Example two:

[0026] Figures 1-4The biological safety cabinet with the dust cover shown in an embodiment of the utility model, it includes: the positioning support block 2 that is fixedly connected to the left and right sides of biological safety cabinet 1, the surface of two positioning support blocks 2 is all rotationally connected with positioning connecting piece 3, dust cover 4 is fixedly connected with the left side of dust cover 4, and thickened connecting block 5 is fixedly connected with the rear side welding of thickened connecting block 5 Round head plate 6, the left side of biological safety cabinet 1 is fixedly connected with the aperture L-shaped plate 7 through bolt, and the inner chamber of aperture L-shaped plate 7 is slidably connected with round rod 8, and the front end of round rod 8 is fixedly connected with inclined surface block 9, and the rear side of inclined surface block 9 is welded with spring 10 between the front side of aperture L-shaped plate 7, and the inner chamber of biological safety cabinet 1 is slidably connected with dust plate 11, and the rear end of round rod 8 is fixedly connected with limit round piece 15, through the setting of limit round piece 15, can make round rod 8 and inclined surface block 9 under the action of spring 10 rebound force, when sliding, the limit range of round rod 8 sliding can be limited, the surface of round rod 8 can be avoided from the inner chamber of aperture L-shaped plate 7, the rear end of limit round piece 15 is fixedly connected with the leverage circular ring 16, the bottom of biological safety cabinet 1 is fixedly connected with the lifting support frame 17 through bolt, and the bottom of lifting support frame 17 is installed with universal wheel 18, and the bottom of lifting support frame 17 is fixedly connected with reinforcing support leg 19 through bolt.

[0027] Working principle: when the utility model is used, the user drives round rod 8 to slide back in the inner chamber of aperture L-shaped plate 7 by pulling the leverage circular ring 16, then makes round rod 8 and inclined surface block 9 end the position limitation of round head plate 6, so that dust cover 4 can be turned over, and then the operating window of biological safety cabinet 1 is dustproof shielded, when needing to use, round rod 8 is made to slide back by the upward rotation of dust cover 4, and the surface of round head plate 6 contacts the surface of inclined surface block 9, the special shape of the surface of inclined surface block 9 will slide back under the downward pressure of round head plate 6, then pushes round rod 8 to slide back, when the position of round head plate 6 slides to the lower side of round rod 8, the rebound force of spring 10 resets round rod 8 and inclined surface block 9, then the position of round head plate 6 and dust cover 4 is fixed, so that the operating window thereof can be dustproof treated before and after use, so that the inside of biological safety cabinet 1 can better keep clean state.

[0028] In conclusion: the biological safety cabinet with the dust cover, by the upward rotation of dust cover 4, dust cover 4 pushes round rod 8 to slide back, then the rebound force of spring 10 resets round rod 8 and inclined surface block 9, then the position of round head plate 6 and dust cover 4 is fixed, so that the operating window thereof can be dustproof treated before and after use, so that the inside of biological safety cabinet 1 can better keep clean state.

Claims

1. A biological safety cabinet with a dust cover, characterized by, The utility model relates to a dustproof device of biosafety cabinet, including the positioning support block (2) fixed connection in the left and right sides of biosafety cabinet (1), the surface of two positioning support blocks (2) all are rotatably connected with positioning connecting piece (3), two positioning connecting piece (3) between the dust cover (4) of fixed connection have in common, the left side fixed connection of dust cover (4) has thickened connecting block (5), the rear side welding of thickened connecting block (5) has round head board (6), the left side fixed connection of biosafety cabinet (1) has the opening L shaped board (7) through bolt, the inner chamber sliding connection of opening L shaped board (7) has round rod (8), the front end fixed connection of round rod (8) has inclined surface block (9), the rear side welding between inclined surface block (9) and the front side of opening L shaped board (7) has spring (10), the inner chamber sliding connection of biosafety cabinet (1) has dustproof board (11).

2. The biological safety cabinet with a dust cover according to claim 1, characterized in that, The left and right sides of the top of dustproof board (11) are fixedly connected with limit head (12), and the front side of dustproof board (11) is fixedly connected with two pull handles (13).

3. The biological safety cabinet with a dust cover according to claim 2, characterized in that, The surface of round head board (6) is rotatably connected with rotating round wheel (14), and the surface of rotating round wheel (14) is slidably connected with the surface of inclined surface block (9).

4. The biological safety cabinet with a dust cover according to claim 3, characterized in that, The rear end of round rod (8) is fixedly connected with limit round piece (15), and the rear end of limit round piece (15) is fixedly connected with leverage circular ring (16).

5. The biological safety cabinet with a dust cover according to claim 4, wherein, The bottom of biosafety cabinet (1) is fixedly connected with lifting support frame (17) through bolts.

6. The biological safety cabinet with a dust cover according to claim 5, characterized in that, The bottom of lifting support frame (17) is provided with universal wheels (18), and the bottom of lifting support frame (17) is fixedly connected with reinforced support legs (19) through bolts.

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