Device and method for quickly tearing off a large number of culture dish sealing films

Abstract

The present invention belongs to the technical field of experimental tools, and specifically is: a device for quickly tearing off a large number of culture dish sealing films, comprising a control box, a handle is threadedly connected to the top of the control box, a protective cover is sleeved on the bottom of the control box, a fixed frame is fixedly connected to the bottom of the protective cover, and a movable cutting knife and a fixed cutting knife are installed on the control box: the present invention can quickly and massively cut the sealing film by arranging a plurality of adjustable movable cutting knives, and can ensure that the width of the cut sealing film strips is uniform, and the situation of different widths will not occur. The device is simple and convenient to operate, simple in structure, low in cost, and worthy of vigorous promotion.

Description

Technical Field

[0001] The invention belongs to the technical field of experimental tools, and in particular relates to a device and a method for quickly tearing off sealing films of a large number of culture dishes. Background Art

[0002] In scientific research experiments related to microorganisms, culture dishes are used for culturing bacteria and fungi, liquid plating, screening antagonistic bacteria, confrontation experiments, etc. After the experiment, the culture dishes need to be sealed. At present, sealing films are mostly used to seal culture dishes in related experiments. Sealing films of this material are all rolled up on the market. When sealing the culture dishes, they need to be cut with scissors and cut into strips of appropriate width for use. When less than 10 culture dishes are used in the experiment, it is not time-consuming to cut with scissors, but when there are more than 10 culture dishes, it is very time-consuming to cut them one by one with scissors. In addition, it is difficult for experimenters who do not often operate this experimental step to grasp the width of the sealing film cut with scissors. Most of the time, the width is uneven, some are wide, some are narrow, some are wide at the top and narrow at the bottom, some are narrow at the top and wide at the bottom, and sometimes the wide ones are too wide and the narrow ones are too narrow, resulting in unnecessary waste.

[0003] When the sealing film is rolled up, the films are separated by plastic paper, which effectively prevents the films from sticking together. When we use the sealing film to seal, we need to peel off the plastic paper, similar to double-sided tape. When we use double-sided tape, we need to peel off the plastic paper. Usually, the way experimenters do this step is to first cut a certain number of sealing films into strips with scissors, and then peel off the plastic paper one by one. There is no gap between the plastic paper and the sealing film, and the connection is very tight. It takes time to peel it off, which slows down the efficiency of the experiment.

[0004] In view of the above problems, a device and method for quickly tearing off a large number of culture dish sealing films are proposed. The device and method can cut multiple culture dish sealing films at one time, which can greatly save time. The cut sealing films are uniform in width, which is both beautiful and avoids waste. The device and method in this patent are used in combination, and about 30 minutes can be saved in cutting and peeling off the sealing films of 100 culture dishes, and the work efficiency can be improved by about 95%. Summary of the invention

[0005] To solve the problems raised in the above background technology, the present invention provides a device and method for quickly tearing off a large number of culture dish sealing films, which can cut multiple culture dish sealing films at one time, greatly saving time, and the cut sealing films are uniform in width, which is both beautiful and avoids waste.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for quickly tearing off the sealing films of a large number of culture dishes, comprising a control box, a handle being threadedly connected to the top of the control box, a protective sleeve being provided on the bottom of the control box, a fixing frame being fixedly connected to the bottom of the protective sleeve, a mounting frame being fixedly connected to the inside of the control box, a first through hole being provided on the mounting frame, a first bearing being installed in the first through hole, a first rotating shaft being passed through the first bearing, two supporting frames being fixedly installed on the left and right sides of the mounting frame, each of the supporting frames being provided with a second through hole, a second bearing being fixedly installed in each of the second through holes, a second rotating shaft being passed through each of the second bearings, four supporting frames and one mounting frame dividing the control interior into six movable bins, each of the movable bins being provided with a screw, and each of the screws being threaded A matching threaded sleeve is connected, the first rotating shaft and the second rotating shaft adjacent to it and the two second rotating shafts on the same side are connected by the screw rod, third through holes are opened on the left and right sides of the control, third bearings are fixedly installed in the two third through holes, third rotating shafts are passed through the two third bearings, the inward ends of the two third rotating shafts are fixedly connected to the screw rods adjacent to them, the free end of the third rotating shaft on the left is fixedly connected to an adjusting knob, six connecting ports are opened at the bottom of the control box, each of the connecting ports corresponds to one of the movable bins, a matching connecting rod is arranged in each of the connecting ports, each of the connecting rods is connected to one of the threaded sleeves, a movable cutting knife is fixedly connected to the free end of each connecting rod, and a fixed cutting knife is fixedly connected to the bottom of the control box.

[0007] Preferably, the protective sleeve is made of stainless steel, and both the front and back sides of the protective sleeve are pure planes.

[0008] Preferably, when the screw rotates, the left and right moving distances of the threaded sleeve matched therewith are arranged from left to right according to the rule of 3:2:1:1:2:3.

[0009] Preferably, the fixed cutting knife and the movable cutting knife are completely identical, and the fixed cutting knife is located at the bottom center of the control box.

[0010] Preferably, the movable cutting knife comprises a knife housing and a blade, the blade is inserted into the knife housing, and the blade is replaceable.

[0011] A method for using a device for quickly tearing off a large number of culture dish sealing films, characterized in that the method comprises the following steps:

[0012] (). First, remove the protective cover from the control box by pulling the fixing frame, place the protective cover flat on the table, and then adjust the distance between each of the movable cutting knives and the distance between the movable cutting knives and the fixed cutting knives according to the required width of the sealing film;

[0013] (2) Turn the adjusting knob, which drives the screw to rotate through the third rotating shaft. The screw is linked to the first rotating shaft through the second rotating shaft. When the screw rotates, the threaded sleeve drives the movable cutting knife to move left and right through the connecting rod, thereby adjusting the position of the movable cutting knife;

[0014] (3) Pull out the sealing film and place it on the protective cover. Then hold the sealing film with one hand and grab the handle with the other hand to cut the sealing film. When cutting the sealing film, you can directly cut it into strips, or you can cut it according to the "head-leaving method", leaving about 0.5 cm at the edge without cutting it. When you need it, you can tear off the remaining part by hand.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention can cut the sealing film quickly and in large quantities by arranging a plurality of adjustable movable cutting knives, and can ensure that the cut sealing film strips have uniform widths without varying widths. The device is easy and convenient to operate, has a simple structure, and has a low cost, and is worthy of vigorous promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 It is a schematic structural diagram of a front cross-section of the present invention;

[0019] Figure 2 It is a structural schematic diagram of the present invention;

[0020] Figure 3 For the present invention Figure 1 The structural diagram at A in the middle;

[0021] Figure 4 For the present invention Figure 1 Schematic diagram of the structure at B in the middle;

[0022] Figure 5 For the present invention Figure 1 The structural diagram at C in the middle;

[0023] Figure 6 For the present invention Figure 1 Schematic diagram of the structure at D in the middle;

[0024] In the figure: 1. control box; 2. adjustment knob; 3. connection port; 4. fixing frame; 5. protective cover; 6. connecting rod; 7. movable compartment; 8. threaded sleeve; 9. screw; 10. support frame; 11. handle; 12. third rotating shaft; 13. third bearing; 14. third through hole; 15. movable cutting knife; 151. knife housing; 152. blade; 16. fixed cutting knife; 17. mounting frame; 18. first rotating shaft; 19. first through hole; 20. first bearing; 21. second through hole; 22. second bearing; 23. second rotating shaft. DETAILED DESCRIPTION

[0025] 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. Example

[0026] See also Figure 1-6The present invention provides the following technical solutions: a device for quickly tearing off a large number of culture dish sealing films, comprising a control box 1, the top of the control box 1 is threadedly connected to a handle 11, the handle 11 can be removed from the control box 1, when the control box 1 or the handle 11 is damaged, only the damaged part needs to be replaced, the bottom of the control box 1 is provided with a protective sleeve 5, the bottom of the protective sleeve 5 is fixedly connected to a fixing frame 4, by setting the fixing frame 4, it is convenient to remove the protective sleeve 5 from the control box 1, the control box 1 is fixedly connected to a mounting frame 17, The mounting frame 17 is provided with a first through hole 19, in which a first bearing 20 is installed, in which a first rotating shaft 18 is passed, and two support frames 10 are fixedly installed on the left and right sides of the mounting frame 17, each of the support frames 10 is provided with a second through hole 21, in which a second bearing 22 is fixedly installed, and in which a second rotating shaft 23 is passed, and the four support frames 10 and the one mounting frame 17 divide the control interior into six movable parts. The movable bin 7 is provided with a screw rod 9 in each movable bin 7, and a matching threaded sleeve 8 is threadedly connected to each screw rod 9. The first rotating shaft 18 and the second rotating shaft 23 adjacent thereto and the two second rotating shafts 23 on the same side are connected by the screw rod 9. The left and right sides of the control are provided with third through holes 14, and third bearings 13 are fixedly installed in the two third through holes 14. The third rotating shafts 12 are penetrated in the two third bearings 13, and the inner side of the two third rotating shafts 12 is provided with a third bearing 13. The ends are fixedly connected to the screw rod 9 adjacent thereto, the free end of the third rotating shaft 12 on the left is fixedly connected with the adjusting knob 2, six connecting ports 3 are opened at the bottom of the control box 1, each of the connecting ports 3 corresponds to one of the movable bins 7, a matching connecting rod 6 is arranged in each of the connecting ports 3, each of the connecting rods 6 is connected to one of the threaded sleeves 8, the free end of each of the connecting rods 6 is fixedly connected with a movable cutting knife 15, and the bottom of the control box 1 is fixedly connected with a fixed cutting knife 16.

[0027] Specifically, the protective cover 5 is made of stainless steel, and both the front and back sides of the protective cover 5 are pure planes. Cutting a sealing film on the protective cover 5 can prevent the desktop from being scratched.

[0028] Specifically, when the screw 9 rotates, the left and right moving distances of the corresponding threaded sleeve 8 are arranged from left to right according to the rule of 3:2:1:1:2:3. When the movable cutting knife 15 is adjusted by adjusting the knob 2, the distance between the movable cutting knives 15 always remains the same as the distance between the fixed cutting knife 16 and the movable cutting knives 15 on both sides.

[0029] Specifically, the fixed cutting knife 16 is completely identical to the movable cutting knife 15 , and the fixed cutting knife 16 is located at the bottom center of the control box 1 .

[0030] Specifically, the movable cutting knife 15 includes a knife housing 151 and a blade 152. The blade 152 is inserted into the knife housing 151. The blade 152 is replaceable. By providing a replaceable blade 152, it is avoided that the blade 152 is damaged and affects the cutting of the sealing film.

[0031] A method for using a device for quickly tearing off a large number of culture dish sealing films, characterized in that the method comprises the following steps:

[0032] (1) First, remove the protective cover 5 from the control box 1 by pulling the fixing frame 4, place the protective cover 5 flat on the table, and then adjust the distance between each of the movable cutting knives 15 and the distance between the movable cutting knives 15 and the fixed cutting knives 16 according to the required width of the sealing film;

[0033] (2) Turn the adjusting knob 2, which drives the screw 9 to rotate through the third rotating shaft 12. The screw 9 is linked to the first rotating shaft 18 through the second rotating shaft 23. When the screw 9 rotates, the threaded sleeve 8 drives the movable cutting knife 15 to move left and right through the connecting rod 6, thereby adjusting the position of the movable cutting knife 15;

[0034] (3) Pull out the sealing film and place it on the protective cover 5, then fix the sealing film with one hand and grasp the handle 11 with the other hand to cut the sealing film. When cutting the sealing film, the sealing film can be directly cut into strips, or it can be cut according to the "head-leaving method", leaving about 0.5 cm at the edge without cutting it. When it is used, the reserved part that has not been cut can be directly torn off by hand.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for quickly tearing off the sealing films of a large number of culture dishes, comprising a control box (1), characterized in that: The top of the control box (1) is threadedly connected to a handle (11); the bottom of the control box (1) is sleeved with a protective sleeve (5); the protective sleeve (5) is made of stainless steel, and both the front and back sides of the protective sleeve (5) are pure planes; the bottom of the protective sleeve (5) is fixedly connected to a fixing frame (4); the control box (1) is internally fixedly connected to a mounting frame (17); a first through hole (19) is opened on the mounting frame (17); a first bearing (20) is installed in the first through hole (19); a first rotating shaft (18) is passed through the first bearing (20); two support frames (10) are fixedly installed on the left and right sides of the mounting frame (17); each support frame (1 0) are provided with a second through hole (21), a second bearing (22) is fixedly installed in each of the second through holes (21), a second rotating shaft (23) is passed through each of the second bearings (22), the four support frames (10) and the one mounting frame (17) divide the control into six movable bins (7), each of the movable bins (7) is provided with a screw rod (9), each of the screw rods (9) is threadedly connected with a matching threaded sleeve (8), the first rotating shaft (18) and the second rotating shaft (23) adjacent thereto and the two second rotating shafts (23) on the same side are connected by the screw rod (9), and the left and right sides of the control are A third through hole (14) is provided, and a third bearing (13) is fixedly installed in each of the two third through holes (14). A third rotating shaft (12) is passed through each of the two third bearings (13). The inward ends of the two third rotating shafts (12) are fixedly connected to a screw rod (9) adjacent thereto. The free end of the third rotating shaft (12) on the left is fixedly connected to an adjusting knob (2). Six connecting ports (3) are provided at the bottom of the control box (1), and each connecting port (3) corresponds to one of the movable bins (7). A matching connecting rod (6) is provided in each of the connecting ports (3), and each connecting rod (6) is connected to one of the threaded sleeves (8). The free end of the connecting rod (6) is fixedly connected to a movable cutting knife (15), and the bottom of the control box (1) is fixedly connected to a fixed cutting knife (16). When the screw rod (9) rotates, the left and right moving distances of the threaded sleeve (8) matched therewith are arranged from left to right in the order of 3:2:1:1:2:

3. The fixed cutting knife (16) and the movable cutting knife (15) are completely the same. The fixed cutting knife (16) is located at the center of the bottom of the control box (1). The movable cutting knife (15) comprises a knife housing (151) and a blade (152). The blade (152) is inserted into the knife housing (151), and the blade (152) is replaceable.

2. The method for using the device for quickly tearing off a large number of culture dish sealing films according to claim 1, characterized in that: The method of use includes the following steps: (1) First, the protective cover (5) is removed from the control box (1) by pulling the fixing frame (4), and the protective cover (5) is placed flat on the table. Then, the distance between each of the movable cutting knives (15) and the distance between the movable cutting knives (15) and the fixed cutting knives (16) are adjusted according to the required width of the sealing film; (2) rotating the adjusting knob (2), the adjusting knob (2) drives the screw rod (9) to rotate via the third rotating shaft (12), the screw rod (9) is linked to the first rotating shaft (18) via the second rotating shaft (23), when the screw rod (9) rotates, the threaded sleeve (8) drives the movable cutting knife (15) to move left and right via the connecting rod (6), thereby adjusting the position of the movable cutting knife (15); (3) Pull out the sealing film and place it on the protective cover (5), then fix the sealing film with one hand and grasp the handle (11) with the other hand to cut the sealing film. When cutting the sealing film, directly cut the sealing film into strips. When cutting according to the "head-leaving method", leave 0.5 cm at the edge without cutting it. When it is used, tear off the reserved part directly by hand.

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