Rolling exhaust device

Abstract

The utility model relates to the technical field of specimen bags, in particular to a rolling exhaust device which comprises a specimen bag, a front sliding rod and a rear sliding rod are arranged at the front end and the rear end of the specimen bag respectively, a front cavity and a rear cavity are formed in the front sliding rod and the rear sliding rod respectively, a front moving shell is connected into the front cavity in a sliding mode, and a rear moving shell is connected into the rear sliding rod in a sliding mode. A front moving shell is slidably connected into the front cavity, a rear moving shell is slidably connected into the rear cavity, a right connecting block is fixedly connected between the right end of the front moving shell and the right end of the rear moving shell, a left connecting block is fixedly connected between the left end of the front sliding rod and the left end of the rear sliding rod, and a sealing device is arranged between the front sliding rod and the rear sliding rod. When the device is used, the gas push plate pushes the gas pipe to move leftwards, at the moment, the rear elastic air bag and the front elastic air bag expand quickly, then the specimen bag is extruded, and when the front sliding rod and the rear sliding rod move upwards, the rear elastic air bag and the front elastic air bag are made of elastic materials, so that the specimen bag cannot be damaged; and air in the specimen bag can be completely discharged outwards.

Description

Technical Field

[0001] The utility model relates to the technical field of specimen bags, and particularly relates to a rolling exhaust device. Background Art

[0002] When using various cryopreservation bags or specimen bags to place specimens, in most cases, it is necessary to empty the excess air in the bags, which is beneficial to the storage of specimens. Most of the existing exhaust methods are manual extrusion of the bags for exhaust. When manually squeezing the bags during exhaust, the bag mouth will be touched, which may cause contamination of the specimens in the bags. In addition, during the process of manual extrusion exhaust, the air in the bags may not be completely discharged, and a part of the air remains in the bags, which may cause the bags to burst during cryopreservation or use, thereby damaging the specimens.

[0003] Therefore, the utility model provides a rolling exhaust device to solve the above problems. Summary of the Utility Model

[0004] In order to solve the above problems, the utility model provides a rolling exhaust device, which effectively solves the problems of incomplete exhaust and specimen contamination during manual exhaust of existing specimen bags.

[0005] To achieve the above object, the technical solution adopted by the utility model is as follows:

[0006] A rolling exhaust device includes a specimen bag. The front and rear ends of the specimen bag are respectively provided with a front slide bar and a rear slide bar. The interiors of the front slide bar and the rear slide bar are respectively provided with a front cavity and a rear cavity. A front moving shell is slidably connected in the front cavity, and a rear moving shell is slidably connected in the rear cavity. A right connecting block is fixedly connected between the right ends of the front moving shell and the rear moving shell. A left connecting block is fixedly connected between the left ends of the front slide bar and the rear slide bar. A sealing device is arranged between the front slide bar and the rear slide bar.

[0007] Preferably; a positioning cavity is arranged at the front end of the front slide bar. A driving block is slidably connected in the positioning cavity. An adjusting screw rod is rotatably connected to the front slide bar and threadedly connected to the driving block. A connecting body is fixedly connected between the front moving shell and the driving block.

[0008] Preferably; the sealing device includes a rear elastic airbag and a front elastic airbag. The rear elastic airbag is arranged in the rear moving shell, and the front elastic airbag is arranged in the front moving shell. An installation cavity is arranged in the right connecting block. A ventilation pipe is connected between the rear elastic airbag and the front elastic airbag.

[0009] Preferably, a limiting cavity is formed in the rear sliding rod, a gas pipe is arranged in the limiting cavity, a gas push plate is slidably connected in the gas pipe, a threaded push rod is rotatably connected to the gas push plate, and a positioning block is fixedly connected in the limiting cavity.

[0010] Preferably, protective compression shells are fixedly connected to the right ends of the front sliding rod and the rear sliding rod respectively.

[0011] Preferably, convex blocks are fixedly connected to the left bottom parts of the front sliding rod and the rear sliding rod respectively. First pressing plates are rotatably connected to the two convex blocks respectively. Extension shafts are fixedly connected to the left ends of the two first pressing plates respectively. A pressing rod is arranged on the left connecting block. A cross block is fixedly connected to the bottom of the pressing rod. Push connecting rods are respectively connected between the two extension shafts and the corresponding cross blocks.

[0012] Preferably, sliding cavities are respectively arranged in the two first pressing plates, second pressing plates are respectively arranged in the two sliding cavities, strip-shaped notches are respectively arranged on the two sliding cavities, and extrusion strips are fixedly connected to the two second pressing plates respectively.

[0013] The beneficial effects of the utility model are as follows:

[0014] 1. The gas push plate pushes the gas pipe to move leftward. At this time, the rear elastic airbag and the front elastic airbag will expand rapidly, thereby squeezing the specimen bag. When the front sliding rod and the rear sliding rod move upward, since the rear elastic airbag and the front elastic airbag are made of elastic materials, the specimen bag will not be damaged, and the air in the specimen bag can be completely discharged outward.

[0015] 2. The first pressing plate and the extrusion strip can squeeze and clamp the specimen bag, which can prevent external air from reversely entering the specimen bag. When the specimen bag is frozen, it will not burst, nor will the specimen in the specimen bag be contaminated. Description of the Drawings

[0016] Figure 1 is a three-dimensional schematic diagram of the utility model;

[0017] Figure 2 is an installation schematic diagram of the rear elastic airbag of the utility model;

[0018] Figure 3 is an installation schematic diagram of the gas pipe of the utility model;

[0019] Figure 4 is an installation schematic diagram of the adjusting screw rod of the utility model;

[0020] Figure 5 is a schematic diagram of the push connecting rod structure of the utility model;

[0021] Figure 6Schematic diagram of the installation of the first extrusion plate of the present utility model;

[0022] Figure 7 Schematic diagram of the sliding cavity structure of the present utility model;

[0023] Figure 8 For the present utility model Figure 5 Enlarged schematic diagram of part A in it.

[0024] Reference numerals: 1, specimen bag; 2, front sliding rod; 3, rear sliding rod; 4, front cavity; 5, rear cavity; 6, front moving shell; 7, rear moving shell; 8, right connecting block; 9, left connecting block; 10, positioning cavity; 11, driving block; 12, adjusting screw rod; 13, connecting body; 14, rear elastic airbag; 15, front elastic airbag; 16, installation cavity; 17, ventilation pipe; 18, limiting cavity; 19, gas pipe; 20, gas push plate; 21, threaded push rod; 22, positioning block; 23, protective compression shell; 24, convex block; 25, first extrusion plate; 26, extension shaft; 27, pressing rod; 28, cross block; 29, pushing connecting rod; 30, sliding cavity; 31, second extrusion plate; 32, strip-shaped notch; 33, extrusion strip. Detailed implementation manners

[0025] Next, each embodiment of the present utility model will be described in detail with reference to Figures 1 to 8 as follows.

[0026] As Figures 1 - 4 shown, a rolling exhaust device includes a specimen bag 1, and here the specimen bag 1 can also be replaced with a cryopreservation bag. A front sliding rod 2 is provided at the front end of the specimen bag 1, and a rear sliding rod 3 is provided at the rear end of the specimen bag 1. The front sliding rod 2 and the rear sliding rod 3 have the same specifications and are located on the same plane. A front cavity 4 is opened at the rear end of the front sliding rod 2, and a rear cavity 5 is provided at the front end of the rear sliding rod 3. The front cavity 4 and the rear cavity 5 are correspondingly arranged. A front moving shell 6 is slidably connected left and right in the front cavity 4, and a bearing cavity is opened at the rear end of the front moving shell 6. A rear moving shell 7 is slidably connected left and right in the rear cavity 5, and a placement cavity is opened at the front end of the rear moving shell 7. The bearing cavity and the placement cavity are communicated with each other. A right connecting block 8 is fixedly connected between the right ends of the front moving shell 6 and the rear moving shell 7, and a left connecting block 9 is fixedly connected between the left ends of the front sliding rod 2 and the rear sliding rod 3. A sealing device is provided between the front sliding rod 2 and the rear sliding rod 3;

[0027] During specific use, the personnel first disinfect the entire device, and then place the specimen bag 1 filled with specimens between the front sliding rod 2 and the rear sliding rod 3, making the top surfaces of the front sliding rod 2 and the rear sliding rod 3 3 to 8 millimeters lower than the specimen liquid. This can avoid air retention in the bag. Then, the sealing device squeezes the front and rear surfaces of the specimen bag 1 to an appropriate degree. One hand holds the bottom of the bag, and the other hand pinches the front sliding rod 2 and the rear sliding rod 3 and slowly moves them upward. During the movement of the sealing device, due to the extrusion of the sealing device, the air in the specimen bag 1 can be completely discharged outward. When the air in the specimen bag 1 is completely discharged, the personnel use the corresponding components to seal the specimen bag 1. Since the sealing device exhausts the air in the specimen bag 1, direct contact of the hand is avoided, which can prevent the specimen bag 1 from being contaminated and improve work efficiency.

[0028] As Figure 2 , Figure 5 , Figure 8 As shown, a positioning cavity 10 is opened at the front end of the front sliding rod 2. The positioning cavity 10 is arranged in the left-right direction. A driving block 11 is arranged in the positioning cavity 10. The driving block 11 is slidably connected to the inner wall of the positioning cavity 10 in the left-right direction. An adjusting screw rod 12 is rotatably connected between the left and right inner walls of the positioning cavity 10. A driving disk is coaxially and fixedly connected to the adjusting screw rod 12. The driving block 11 is threadedly connected to the adjusting screw rod 12. A guiding hole communicating with the positioning cavity 10 is opened on the front cavity 4. A connecting body 13 located in the guiding hole is fixedly connected to the driving block 11. The connecting body 13 is fixedly connected to the front moving shell 6;

[0029] During specific use, when it is necessary to adjust the lengths of the front sliding rod 2 and the rear sliding rod 3, manually rotate the driving disk. At this time, the adjusting screw rod 12 drives the driving block 11 and the connecting body 13 to move. At this time, the front moving shell 6, the right connecting block 8, and the rear moving shell 7 synchronously move to the right to an appropriate degree, thereby adapting to specimen bags 1 of various specifications and improving convenience.

[0030] As Figure 2 , Figure 5 As shown, the sealing device includes a rear elastic airbag 14 and a front elastic airbag 15. The rear elastic airbag 14 and the front elastic airbag 15 are made of existing elastic materials, such as elastic rubber, so that the rear elastic airbag 14 and the front elastic airbag 15 have the characteristics of stretching and compression. The rear elastic airbag 14 is arranged in the placement cavity of the rear moving shell 7. The front elastic airbag 15 is arranged in the bearing cavity of the front moving shell 6. The right ends of the rear elastic airbag 14 and the front elastic airbag 15 are respectively rotatably connected to the left end surface of the right connecting block 8. A right installation cavity 16 is opened on the right end surface of the right connecting block 8. The ventilation pipe 17 is fixedly connected in the installation cavity 16. Both ends of the ventilation pipe 17 are fixedly communicated with fixing rings. The left ends of the rear elastic airbag 14 and the front elastic airbag 15 are respectively rotatably connected to the corresponding fixing rings.

[0031] As Figure 3 、 Figure 5 shown, a limiting cavity 18 is formed at the rear end of the rear sliding rod 3. A gas pipe 19 is fixedly connected inside the limiting cavity 18. The right end of the gas pipe 19 is fixedly communicated with a hose, and the other end of the hose is fixedly communicated with a corresponding fixing ring. A gas push plate 20 is slidably connected left and right inside the gas pipe 19. A sealing ring is fixedly connected to the upper part of the gas push plate 20, and the sealing ring contacts the inner wall of the gas pipe 19. A threaded push rod 21 is rotatably connected to the left end of the gas push plate 20. A positioning block 22 is fixedly connected inside the limiting cavity 18, and the threaded push rod 21 is threadedly connected to the positioning block 22;

[0032] When it is necessary to squeeze the specimen bag 1, an operator drives the threaded push rod 21 to rotate. The gas push plate 20 pushes the air in the gas pipe 19 to move leftward. Then the air enters the corresponding fixing ring through the hose, so as to inflate the rear elastic airbag 14 and the front elastic airbag 15 through the ventilation pipe 17. The rear elastic airbag 14 and the front elastic airbag 15 gradually expand until the specimen bag 1 is squeezed to an appropriate degree. Then, manually move the front sliding rod 2 and the rear sliding rod 3 upward slowly. The rear elastic airbag 14 and the front elastic airbag 15 will roll along the outer end face of the specimen bag 1. During the rolling process, the air in the specimen bag 1 can be completely discharged outward. Since the rear elastic airbag 14 and the front elastic airbag 15 are in direct contact with the specimen bag 1, it can avoid contamination of the specimen bag 1 and will not damage the specimen bag 1, improving the practicability; since the rear elastic airbag 14 and the front elastic airbag 15 are elastic, they can be stretched according to the specifications of the specimen bag 1.

[0033] As Figure 2 shown, protective compression shells 23 are respectively fixedly connected to the right ends of the front sliding rod 2 and the rear sliding rod 3. Notches are respectively formed between the opposite end faces of the two protective compression shells 23. The front moving shell 6 and the rear moving shell 7 are respectively located in the corresponding notches. The protective compression shell 23 has the characteristics of stretching and compressing and can be stretched and compressed as required. The protective compression shell 23 can protect the front moving shell 6 and the rear moving shell 7 from being damaged.

[0034] As Figure 6As shown, convex blocks 24 are respectively fixedly connected to the left bottom parts of the front sliding rod 2 and the rear sliding rod 3. First pressing plates 25 are respectively rotatably connected to the right end faces of the two convex blocks 24. Extension shafts 26 are respectively fixedly connected to the left end faces of the two first pressing plates 25. A limiting hole penetrating up and down is formed in the left connecting block 9. A pressing rod 27 is slidably connected up and down in the limiting hole. A spring is sleeved on the pressing rod 27. One end of the spring is fixedly connected to the top end of the pressing rod 27, and the other end is fixedly connected to the top end of the left connecting block 9. A cross block 28 is fixedly connected to the bottom end of the pressing rod 27. Push connecting rods 29 are respectively rotatably connected to each extension shaft 26. The other ends of each push connecting rod 29 are respectively rotatably connected to the cross block 28.

[0035] As Figure 7 As shown, sliding cavities 30 are respectively arranged at the right ends of the two first pressing plates 25. Second pressing plates 31 are respectively slidably connected left and right in the two sliding cavities 30. Two three-dimensional blocks are fixedly connected to the bottom end of the right connecting block 8. The right end of each second pressing plate 31 is respectively rotatably connected to the corresponding three-dimensional block. The two second pressing plates 31 can adapt to the specifications of a variety of specimen bags 1. Strip-shaped notches 32 are respectively formed at the bottom ends of the two sliding cavities 30. Extrusion strips 33 are respectively fixedly connected to the bottom ends of the two second pressing plates 31. Each extrusion strip 33 is respectively located in the corresponding strip-shaped notch 32, and the extrusion strip 33 can slide left and right in the corresponding strip-shaped notch 32.

[0036] The working principle of the present utility model:

[0037] During use, the user first disinfects the entire device. The pressing rod 27 slides downward, and the spring is compressed. The cross block 28 pushes the bottoms of the two first pressing plates 25 away from each other through the corresponding push connecting rods 29 and extension shafts 26. Then, the specimen bag 1 filled with specimens is placed between the front sliding rod 2 and the rear sliding rod 3. The user drives the threaded push rod 21 to rotate, and the gas push plate 20 pushes the air in the gas pipe 19 to move leftward. The air enters the corresponding fixing ring through the hose, and then inflates the rear elastic airbag 14 and the front elastic airbag 15 through the air pipe 17 until the rear elastic airbag 14 and the front elastic airbag 15 squeeze the specimen bag 1 to an appropriate degree. Since the rear elastic airbag 14 and the front elastic airbag 15 are made of elastic materials, they will not damage the specimen bag 1, and can also make the front and rear inner surfaces of the specimen bag 1 fully contact.

[0038] Next, manually press the pressing rod 27. The two first pressing plates 25 remain in the unfolded state, causing the front sliding rod 2 and the rear sliding rod 3 to move upward slowly. The rear elastic airbag 14 and the front elastic airbag 15 will roll along the outer end surface of the specimen bag 1. When the bottom end surfaces of the two first pressing plates 25 are higher than the specimen liquid, release the pressing rod 27. Due to the rebounding force of the spring, the bottom surface of each first pressing plate 25 and the extrusion strip 33 simultaneously squeeze and clamp the outside of the specimen bag 1, which can again prevent external air from flowing back into the specimen bag 1. During the rolling process of the rear elastic airbag 14 and the front elastic airbag 15, at this time, the bottom surface of the first pressing plate 25 and the extrusion strip 33 will slide along the front and rear outer surfaces of the specimen bag 1, which can completely discharge the air in the specimen bag 1 to the outside. When the specimen bag 1 is frozen, it will not burst, nor will it cause the specimen in the specimen bag 1 to be contaminated.

[0039] It should be noted that in the description of the present invention, the terms indicating directions or positional relationships such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0040] In addition, it should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present invention.

Claims

1. A rolling exhaust device, comprising a specimen bag (1), characterized in that, The front and rear ends of the specimen bag (1) are respectively provided with a front sliding rod (2) and a rear sliding rod (3). The interiors of the front sliding rod (2) and the rear sliding rod (3) are respectively provided with a front cavity (4) and a rear cavity (5). A front moving shell (6) is slidably connected in the front cavity (4), and a rear moving shell (7) is slidably connected in the rear cavity (5). A right connecting block (8) is fixedly connected between the right ends of the front moving shell (6) and the rear moving shell (7). A left connecting block (9) is fixedly connected between the left ends of the front sliding rod (2) and the rear sliding rod (3). A sealing device is provided between the front sliding rod (2) and the rear sliding rod (3).

2. The rolling exhaust device according to claim 1, wherein A positioning cavity (10) is provided at the front end of the front sliding rod (2). A driving block (11) is slidably connected in the positioning cavity (10). An adjusting screw rod (12) that is rotatably connected and threadedly connected to the driving block (11) is provided on the front sliding rod (2). A connecting body (13) is fixedly connected between the front moving shell (6) and the driving block (11).

3. The rolling exhaust device according to claim 1, characterized in that, The sealing device includes a rear elastic airbag (14) and a front elastic airbag (15). The rear elastic airbag (14) is arranged in the rear moving shell (7), and the front elastic airbag (15) is arranged in the front moving shell (6). An installation cavity (16) is provided in the right connecting block (8). A ventilation pipe (17) is connected between the rear elastic airbag (14) and the front elastic airbag (15).

4. The rolling exhaust device according to claim 3, characterized in that, A limiting cavity (18) is provided on the rear sliding rod (3). A gas pipe (19) is provided in the limiting cavity (18). A gas push plate (20) is slidably connected in the gas pipe (19). A threaded push rod (21) is rotatably connected to the gas push plate (20). A positioning block (22) is fixedly connected in the limiting cavity (18).

5. A rolling exhaust device according to claim 1, wherein Protective compression shells (23) are respectively fixedly connected to the right ends of the front sliding rod (2) and the rear sliding rod (3).

6. The rolling exhaust device according to claim 1, characterized in that, Convex blocks (24) are respectively fixedly connected to the left bottom parts of the front sliding rod (2) and the rear sliding rod (3). First extrusion plates (25) are respectively rotatably connected to the two convex blocks (24). Extension shafts (26) are respectively fixedly connected to the left ends of the two first extrusion plates (25). A pressing rod (27) is provided on the left connecting block (9). A cross block (28) is fixedly connected to the bottom of the pressing rod (27). Push connecting rods (29) are respectively connected between the two extension shafts (26) and the corresponding cross blocks (28).

7. A rolling exhaust device according to claim 1, wherein, Sliding cavities (30) are respectively provided in the two first extrusion plates (25). Second extrusion plates (31) are respectively provided in the two sliding cavities (30). Strip-shaped notches (32) are respectively provided on the two sliding cavities (30). Extrusion strips (33) are respectively fixedly connected to the two second extrusion plates (31).

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