A sealing film cutting device for laboratory

Abstract

The utility model discloses a sealing film cutting device for a laboratory, comprising a shell with a film outlet groove on one side and a cutting knife component located above the film outlet groove, the film outlet groove is located on one side of the shell inner cavity and is provided with a first guide roller and a second guide roller connected by two inner side plates, the shell inner cavity is provided with two oppositely arranged support frames, the two support frames are connected with detachable rollers, and a limiting component is provided on the side of the roller facing the film outlet groove, the limiting component comprises two oppositely arranged limiting plates and a first limiting end located at both ends of the limiting plate and limiting one side of the film roll and a second limiting end located at both ends of the limiting plate, and the sealing film is pulled out of the film outlet groove after passing through the first guide roller and the second guide roller and is cut by the cutting knife component. The utility model can prevent hand injuries during cutting, can match sealing films of different styles, ensure the cutting accuracy and width of the sealing film, and the size of the sealing film after cutting is consistent, thereby improving the sealing effect of the sealing film.

Description

Technical Field

[0001] The utility model relates to the technical field of laboratory sealing films, in particular to a sealing film cutting device used in laboratories. Background Art

[0002] Sealing film is an essential and frequently used experimental consumable in biological laboratories. It is an ideal choice for laboratory sealing work and can minimize the flow of water. It plays an excellent sealing and protective role for samples in experimental equipment such as tilted bottles, narrow-necked bottles, reagent bottles, EP tubes and culture dishes. It is often used in hospital laboratories and biomedical storage fields, and is also an indispensable material for sealed containers in cell laboratories. This is because, after the container is opened and filled with liquid substances, directly tightening it cannot guarantee the sealing of the container, thereby increasing the risk of contamination of the container and the reagents in the container. After tightening, wrapping the bottle mouth with sealing film to strengthen the sealing of the container cap and the bottle body can reduce the risk of liquid leakage in the container, thereby reducing the risk of contamination.

[0003] When the sealing film is used in the laboratory, it needs to be cut according to the requirements of different sealing sizes. Due to the thickness of the sealing film and its strong tensile toughness, the cutting method of the sealing film cannot be similar to the cutting method of food wrap. Therefore, in the laboratory, the experimenters generally use scissors to cut the sealing film and seal the experimental equipment after cutting. However, this method is easy to hurt the hands when cutting, and manual cutting cannot guarantee the cutting accuracy and width, resulting in inconsistent sizes of the sealing film after cutting, and also affecting the sealing effect of the sealing film. Utility Model Content

[0004] In order to solve the technical problems in the prior art that hands are easily injured during cutting, cutting accuracy and width cannot be guaranteed, resulting in inconsistent sizes of the sealing film after cutting, and affecting the sealing effect of the sealing film, the utility model provides the following technical solutions.

[0005] The utility model discloses a sealing film cutting device for a laboratory, comprising a shell body with a film outlet groove on one side and a cutting knife component located above the film outlet groove, wherein the film outlet groove is located at one side of the inner cavity of the shell body and is provided with a first guide roller and a second guide roller which are rotatably connected by two inner side plates and guide the sealing film, the inner cavity of the shell body is provided with two supporting frames which are arranged opposite to each other, the two supporting frames are connected with a detachable roller which is used for movably connecting a film roll, and a limiting component is provided on the side of the roller facing the film outlet groove, the limiting component comprises two limiting plates which are arranged opposite to each other and a first limiting end which is located at two ends of the limiting plate and limits one side of the film roll respectively, and a second limiting end which limits one side of the first guide roller and the second guide roller, the sealing film is pulled out from the film outlet groove after passing through the first guide roller and the second guide roller and is cut by the cutting knife component.

[0006] As a further technical solution, the limiting component includes a fixing plate fixedly connected to the inner wall of the shell, and two sliding grooves with oppositely arranged inner cavities having fixed sliding rods are provided on both sides of the upper surface of the fixing plate, and the fixed sliding rod is slidably connected to a sliding block fixedly connected to the limiting plate, and a second spring is provided on one side of the sliding block and is sleeved on the outer periphery of the fixed sliding rod.

[0007] As a further technical solution, the cutting knife component comprises a knife holder fixed to one side of the shell and provided with a receiving cavity, and the receiving cavity receives a cutting knife that can be raised and lowered.

[0008] As a further technical solution, a guide column fixedly connected to the cutting knife is slidably connected to the upper part of the knife holder, a first spring is sleeved on the outer periphery of the guide column, and a lower pressure plate with a handle is fixedly connected to the upper end of the guide column.

[0009] As a further technical solution, a cutting frame fixedly connected to one side of the shell is provided below the film outlet groove, and the cutting frame is provided with a cutting groove corresponding to the cutting knife.

[0010] As a further technical solution, a plurality of suction cups are provided at the lower portion of the shell to facilitate stable placement of the shell.

[0011] The beneficial effect of the utility model is that after the sealing film is pulled out from the shell, the cutting knife component cooperates with the cutting groove to cut the sealing film coming out of the film groove, which can prevent hand injuries during cutting. A limiting component is provided in the shell to limit the position of the film roll and the sealing film from the first guide roller and the second guide roller. The limiting component keeps the film roll and the sealing film in a normal direction, can match sealing films of different manufacturers and various styles, ensure the cutting accuracy and width of the sealing film, ensure the consistent size of the sealing film after cutting, and improve the sealing effect of the sealing film. The cutter can cooperate with the bottom paper of the sealing film to cut at will according to the required size, providing a more accurate cutting scale. In addition, the sealing film is placed in a closed shell and will not be contaminated by other substances such as external dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of a sealing film cutting device used in a laboratory according to the utility model;

[0013] Figure 2 This is a schematic diagram of the interior of a housing of a sealing film cutting device for a laboratory of the utility model;

[0014] Figure 3 It is a schematic diagram of a cutting blade component of a sealing film cutting device used in a laboratory according to the utility model;

[0015] Figure 4 It is a schematic diagram of the bottom of the shell of the sealing film cutting device used in the laboratory of the utility model;

[0016] Figure 5 It is a schematic diagram of the limiting component of the sealing film cutting device used in the laboratory of the utility model;

[0017] In the figure: 1-shell; 101-film outlet slot; 102-paper box; 103-cutting frame; 104-cutting slot; 105-inner plate; 2-cover plate; 3-cutter component; 301-knife frame; 302-accommodating chamber; 303-cutter; 304-guide column; 305-first spring; 306-lower pressure plate; 307-handle; 4-support frame; 5-roller; 6-limiting component; 601-fixed plate; 602-slide groove; 603-fixed slide rod; 604-slider; 605-second spring; 606-limiting plate; 607-first limiting end; 608-second limiting end; 7-first guide roller; 8-second guide roller; 9-film roll; 10-suction cup. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0019] In the description of the present invention, it should be understood that the terms "upper", "lower" and "both sides" are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second" and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0020] like Figure 1 and Figure 4 As shown, the utility model is a sealing film cutting device for laboratory, comprising a shell 1 and four suction cups 10 located at the bottom of the shell 1, so as to facilitate the stable placement of the shell 1 and ensure the stability of the sealing film when cutting.

[0021] like Figure 1 and Figure 4As shown, in a preferred embodiment, a film outlet groove 101 is provided on one side of the upper part of the housing 1, a cutting knife component 3 is provided above the film outlet groove 101, and a cutting frame 103 fixedly connected to one side of the housing 1 is provided below the film outlet groove 101. The upper surface of the cutting frame 103 is flush with the film outlet groove 101, and the cutting frame 103 is provided with a cutting groove 104 corresponding to the cutting knife 303. After the sealing film is pulled out from the film outlet groove 101, the cutting knife component 3 is operated, and the cutting knife of the cutting knife component 3 cuts the sealing film from the cutting groove 104.

[0022] like Figure 1 and Figure 3 As shown, in a preferred embodiment, the cutter component 3 includes a cutter holder 301 fixed to one side of the housing 1. The cutter holder 301 is an inverted U-shaped structure. A housing chamber 302 is provided at the lower part of the cutter holder 301. The housing chamber 302 accommodates a cutter 303 that can be lifted up and down. When not in use, the cutter 303 is hidden in the housing chamber 302. A guide column 304 fixedly connected to the cutter 303 is slidably connected to the upper part of the cutter holder 301. A first spring 305 is sleeved on the outer periphery of the guide column 304. A lower pressing plate 306 provided with a handle 307 is fixedly connected to the upper end of the guide column 304. When cutting the sealing film, the handle 307 is pressed, and the lower pressing plate 306 drives the guide column 304 to descend, and the cutter 303 descends and extends out from the housing chamber 302 to cut the sealing film. After cutting, under the action of the first spring 305, the cutter 303 rises and retracts into the housing chamber 302.

[0023] like Figure 2 and Figure 5 As shown, in a preferred embodiment, the film outlet groove 101 is located on one side of the inner cavity of the shell 1 and is provided with a first guide roller 7 and a second guide roller 8 for guiding the sealing film. At this time, the inner cavity of the shell 1 is provided with two inner plates 105, and the two inner plates 105 are located on both sides of the film outlet groove 101. The first guide roller 7 and the second guide roller 8 are rotatably connected to the two inner plates 105, and the sealing film extends from the gap between the first guide roller 7 and the second guide roller 8 to the outside of the film outlet groove 101.

[0024] The inner cavity of the housing 1 is provided with two support frames 4 arranged opposite to each other, and the support frames 4 are fixed to the bottom of the housing 1. The two support frames 4 are connected with a detachable roller 5, and the roller 5 is used to flexibly connect the film roll 9. The roller 5 can be relatively immovable relative to the support frame 4, or can be relatively rotatable, and there is no special limitation on this. A limiting component 6 is provided on the side of the roller 5 facing the film outlet groove 101, and the limiting component 6 is used to limit the film outlet direction of the film roll 9 and the sealing film to prevent deviation during film outlet.

[0025] Specifically, the limiting component 6 includes a fixed plate 601 fixedly connected to the inner wall of the housing 1, two slide grooves 602 arranged opposite to each other are arranged on both sides of the upper surface of the fixed plate 601, the inner cavities of the two slide grooves 602 are fixed with fixed slide bars 603, the fixed slide bars 603 are slidably connected with sliders 604, the sliders 604 are fixedly connected with limiting plates 606, the two limiting plates 606 are also arranged opposite to each other, one side of the slider 604 is provided with a second spring 605 sleeved on the outer periphery of the fixed slide bar 603, the second spring 605 can be located on the left and right sides of the slider 604, as long as the two second springs 605 are arranged opposite to each other, there is no special limitation on this. Under the action of the second spring 605, the two limiting plates 606 can move towards each other or move away from each other.

[0026] The two ends of the limiting plate 606 are respectively provided with a first limiting end 607 for limiting one side of the film roll 9 and a second limiting end 608 for limiting one side of the first guide roller 7 and the second guide roller 8, so that the two first limiting ends 607 keep the film roll 9 in the correct position, and the two second limiting ends 608 ensure that the sealing film is in the correct direction when it moves forward. Afterwards, the sealing film is pulled out of the film outlet groove 101 after passing through the first guide roller 7 and the second guide roller 8 and is cut by the cutting knife component 3.

[0027] When the utility model is in use, the film roll 9 is sleeved on the outer circumference of the roller 5. Under the action of the second spring 605, the two first limit ends 607 keep the film roll 9 in the correct position from the two ends of the film roll 9, and the film roll 9 is torn open, so that the sealing film is pulled out from the film outlet groove 101 after passing through the first guide roller 7 and the second guide roller 8. When cutting is required, a sealing film of a certain size is pulled out according to the scale of the bottom paper of the sealing film, and then the handle 307 is pressed, the lower pressure plate 306 drives the guide column 304 to descend, and the cutter 303 descends and extends out from the accommodating chamber 302 to cut the sealing film. After cutting, under the action of the first spring 305, the cutter 303 rises and retracts into the accommodating chamber 302 to complete the cutting of the sealing film.

[0028] The preferred specific implementation modes and embodiments of the utility model are described in detail above in conjunction with the accompanying drawings, but the utility model is not limited to the above implementation modes and embodiments, and various changes or equivalent substitutions can be made within the knowledge scope of those skilled in the art without departing from the concept of the utility model. Therefore, the utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the utility model.

Claims

1. A sealing film cutting device for laboratory, characterized in that: The invention comprises a shell (1) with a film outlet groove (101) on one side and a cutting knife component (3) located above the film outlet groove (101); the film outlet groove (101) is located on one side of the inner cavity of the shell (1) and is provided with a first guide roller (7) and a second guide roller (8) for guiding the sealing film, which are rotatably connected by two inner plates (105); the inner cavity of the shell (1) is provided with two support frames (4) arranged opposite to each other; the two support frames (4) are connected with detachable rollers (5) for movably connecting a film roll (9); the rollers (5) A limiting component (6) is provided on one side of the film outlet groove (101), and the limiting component (6) includes two limiting plates (606) arranged opposite to each other and a first limiting end (607) located at both ends of the limiting plate (606) for limiting one side of the film roll (9) and a second limiting end (608) for limiting one side of the first guide roller (7) and the second guide roller (8). The sealing film is pulled out of the film outlet groove (101) after passing through the first guide roller (7) and the second guide roller (8) and is cut by the cutting knife component (3).

2. The sealing film cutting device for laboratory use according to claim 1, characterized in that: The limiting component (6) includes a fixing plate (601) fixedly connected to the inner wall of the shell (1), two sliding grooves (602) are arranged on both sides of the upper surface of the fixing plate (601) and the inner cavity is fixed with a fixed sliding rod (603) which is arranged opposite to each other, the fixed sliding rod (603) is slidably connected to a sliding block (604) fixedly connected to the limiting plate (606), and a second spring (605) is provided on one side of the sliding block (604) and is sleeved on the outer periphery of the fixed sliding rod (603).

3. The sealing film cutting device for laboratory use according to claim 1, characterized in that: The cutting knife component (3) comprises a knife holder (301) fixed to one side of the housing (1) and provided with a receiving cavity (302); the receiving cavity (302) receives a cutting knife (303) that can be raised and lowered.

4. The sealing film cutting device for laboratory use according to claim 3, characterized in that: A guide column (304) fixedly connected to the cutting knife (303) is slidably connected to the upper part of the knife holder (301); a first spring (305) is sleeved on the outer periphery of the guide column (304); and a lower pressing plate (306) provided with a handle (307) is fixedly connected to the upper end of the guide column (304).

5. The sealing film cutting device for laboratory use according to claim 3, characterized in that: A cutting frame (103) fixedly connected to one side of the shell (1) is provided below the film outlet groove (101), and the cutting frame (103) is provided with a cutting groove (104) corresponding to the cutting knife (303).

6. The sealing film cutting device for laboratory use according to claim 1, characterized in that: A plurality of suction cups (10) are provided at the lower part of the shell (1) to facilitate stable placement of the shell (1).

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