Experimental waste collecting device

Abstract

The utility model provides an experimental waste collecting device. The experimental waste collecting device comprises a bag feeding bin and a storage bin, the bottom of the bag feeding bin communicates with the top of the storage bin, and the storage bin is provided with a bin door capable of being opened and closed; the two film winding assemblies are located on the two sides of the top of the bag inlet bin correspondingly and used for winding films and continuously releasing the films into the bag inlet bin, and the films on the two faces are subjected to heat sealing to form a storage unit. The transverse heat sealing assembly is arranged at the bottom of the bag feeding bin and horizontally distributed, the vertical heat sealing assemblies are arranged on the two sides of the bag feeding bin and vertically distributed, the vertical heat sealing assemblies are used for conducting heat sealing on the two side edges of the films on the two faces, and the transverse heat sealing assembly is used for conducting heat sealing on the bottom edges and the top edges of the films on the two faces in sequence to form a sealed storage unit. According to the utility model, the orderly formation of the storage unit, the storage of experimental wastes and the sealing can be ensured, the infection risk caused by direct contact with the external environment and personnel can be avoided, and meanwhile, the structure is relatively simple, the occupied space is smaller, and the manufacturing cost is lower.

Description

Technical Field

[0001] The utility model relates to the technical field of experimental waste collection, in particular to an experimental waste collection device. Background Art

[0002] When packing garbage in a traditional trash can, the steps usually include taking out the inner barrel of the trash can, rolling up the edge of the storage bag, tightening the bag mouth and putting it aside, putting a new storage bag on the inner barrel of the trash can, rolling up the edge, and putting the inner barrel into the outer barrel of the trash can. This method is relatively troublesome, accompanied by odor and unsanitary. Especially for the storage of experimental waste, long-term placement will put the surrounding environment at risk of infection, and this risk is further increased for the packing personnel.

[0003] The prior art discloses an automatic trash can (garbage collection device), in which a storage bag sealing device is arranged on the lid, and some also include a garbage transfer chamber. The garbage transfer chamber includes a cover plate and a bottom plate that can be opened and closed, and the area below the bottom plate becomes a sealed garbage holding area. When the trash can receives garbage thrown in by the user, the cover plate is opened first, and the cover plate is closed after the garbage enters the garbage transfer chamber. Then the bottom plate of the garbage transfer chamber is opened, and the thrown garbage falls into the garbage holding area. Then the bottom plate of the transfer chamber is closed, and the thrown garbage is sealed in the garbage holding area. At the same time, the automatic trash can can realize the functions of automatic packaging and sealing and automatic replacement of storage bags through the storage bag sealing component and the storage bag automatic bag feeding component.

[0004] For this type of automatic trash can, the prior art usually requires the installation of an automatic bag feeding assembly, using fan air pressure feeding, roller feeding or other automatic bag feeding methods. This undoubtedly increases the complexity of the structure, increases the cost, and also takes up the layout space of the trash can. At the same time, the storage bag sealing assembly of this type of automatic trash can usually only seals the entrance of the storage bag, and the storage bag itself is stored in the form of three-sided sealing by the storage bag storage assembly. The storage bag also needs to be expanded by the corresponding assembly later, etc., which can be optimized and improved.

[0005] The existing technology lacks a dedicated collection device specifically for the treatment of experimental waste, and the waste generated in the laboratory is prone to cross-contamination. Frequent recycling of experimental waste will increase the corresponding workload, and the pollution caused by experimental waste that cannot be handled in time will also affect the environment in the laboratory, and will affect the detection accuracy of subsequent experiments, thereby producing a series of negative effects. Utility Model Content

[0006] The purpose of the utility model is to provide an improved solution suitable for collecting experimental waste in view of the deficiencies existing in the above-mentioned background technology.

[0007] In order to achieve the above-mentioned purpose, the utility model provides an experimental waste collection device, including a bag feeding bin, a storage bin, a film winding assembly, a transverse heat sealing assembly and a vertical heat sealing assembly;

[0008] The bottom of the bag feeding bin is connected to the top of the storage bin, and the storage bin is provided with a bin door that can be opened and closed;

[0009] The film winding assembly is provided in two groups and is respectively located on both sides of the top of the bag feeding bin. The film winding assembly is used to wind the film and continuously release it into the bag feeding bin. The two sides of the film are heat-sealed to form a storage unit.

[0010] The transverse heat sealing assembly is arranged at the bottom of the bag feeding bin and is distributed horizontally, the vertical heat sealing assembly is arranged on both sides of the bag feeding bin and is distributed vertically, the vertical heat sealing assembly is used to heat seal the two side edges of the two-sided film, and the transverse heat sealing assembly is used to heat seal the bottom edge and the top edge of the two-sided film in sequence to form the sealed storage unit.

[0011] Furthermore, the film winding assembly includes a reel and a reel support shaft, a film is wound on the reel, an outer end of the film extends downward into the bag feeding bin, the reel is rotatably connected to the reel support shaft, and the reel support shaft is fixedly connected to the top of the bag feeding bin.

[0012] Furthermore, a guiding slope is also provided on the top of the bag feeding bin, and the guiding slope is arranged in one-to-one correspondence with the roll, and the guiding slope is inclined toward the center of the bag feeding bin, so as to guide the film released from the roll into the bag feeding bin.

[0013] Furthermore, the film winding assembly also includes a sensor for detecting the rotation angle of the roll.

[0014] Further, the transverse heat sealing assembly includes heat sealing cross bars arranged on opposite sides of the bag feeding bin, first heat sealing guide rails arranged corresponding to the two ends of the heat sealing cross bars, and a heat sealing driving mechanism for driving the heat sealing cross bars to move, and a heating wire is arranged inside the heat sealing cross bars;

[0015] The vertical heat sealing components are arranged in two groups, and each group of the vertical heat sealing components includes heat sealing vertical rods arranged on opposite sides of the bag feeding bin, second heat sealing guide rails arranged corresponding to the two ends of the heat sealing vertical rods, and a heat sealing driving mechanism that drives the heat sealing vertical rods to move; electric heating wires are arranged in the heat sealing vertical rods.

[0016] Furthermore, the heat sealing drive mechanism includes a screw, two nuts with opposite rotation directions and a screw driving motor. The output end of the screw driving motor is transmission-connected to the screw, the two nuts with opposite rotation directions cooperate with the screw, and the two nuts with opposite rotation directions are respectively connected to the heat sealing vertical rod or the heat sealing horizontal rod on opposite sides.

[0017] Furthermore, the experimental waste collection device is also provided with a clamping adjustment component, which includes a clamping head, a clamping shaft, a clamping connecting arm and a clamping control unit. The clamping head is provided in pair, and the root of the clamping head is rotatably connected to the clamping shaft. The clamping shaft sleeve is provided with a first reset torsion spring, and the two ends of the first reset torsion spring are respectively connected to the two clamping heads. The clamping shaft is fixedly arranged at the first end of the clamping connecting arm, and the second end of the clamping connecting arm is connected to the clamping control unit, and the clamping control unit is used to control the retraction of the clamping head.

[0018] Furthermore, the clamping control part includes a clamping lifting plate connected to the second end of the clamping connecting arm and a control pedal arranged on the clamping lifting plate; the storage bin is provided with a control groove, the clamping lifting plate is arranged in the control groove and movably connected to the control groove, and a return spring is also arranged between the clamping lifting plate and the control groove; the clamping lifting plate is rotatably provided with a pedal shaft, the control pedal is connected to the pedal shaft, the pedal shaft sleeve is provided with a second return torsion spring, and the two ends of the second return torsion spring are respectively fixed to the pedal shaft and the clamping lifting plate; a control steel wire is arranged between the pedal shaft and the clamping head.

[0019] Furthermore, the pedal shaft is fixedly connected to the retractable wheel, the clamping connecting arm is rotatably connected to the guide wheel, the control steel wire includes a first control steel wire and a second control steel wire, the first ends of the first control steel wire and the second control steel wire are respectively connected to the two clamping heads, the second ends of the first control steel wire and the second control steel wire are combined into one and fixedly connected to the retractable wheel, and the first control steel wire and the second control steel wire are guided and bent by the guide wheel.

[0020] The above solution of the utility model has the following beneficial effects:

[0021] The experimental waste collection device provided by the utility model can heat-seal in the bag-feeding bin to form a storage unit to accommodate the experimental waste through the arrangement of the bag-feeding bin, the storage bin, the film winding component, the horizontal heat-sealing component, and the vertical heat-sealing component. In the process of gradually loading the experimental waste, the experimental waste will sink under the action of gravity and gradually enter the storage bin from the bottom of the bag-feeding bin, while the film on the roll will be further pulled into the bag-feeding bin. When the storage unit is about to completely enter the storage bin, its top edge will align with the horizontal heat-sealing component, and the horizontal heat-sealing component will heat-seal the top edge of the storage unit to form a completely sealed space inside it. At the same time, the top edge of this storage unit can also be regarded as the bottom edge of the two-sided film currently in the bag inlet bin. The vertical heat-sealing component heat-seals the side edges of the two-sided film in the bag inlet bin at the same time, thereby forming a second storage unit to re-accommodate the experimental waste and carry out the aforementioned cycle process, ensuring the automatic, continuous and orderly replenishment of the storage unit. In the end, the storage bin collects multiple storage units in a continuous and integrated form. When the storage bin is full, the multiple storage units can be conveniently taken out and removed as a whole. During this process, each storage unit remains completely sealed to ensure that there is no risk of infection caused by direct contact with the external environment or personnel;

[0022] The experimental waste collection device provided by the utility model, through the setting of the clamping adjustment component, when the storage unit cannot be lowered into the storage bin under the action of gravity, the previous storage unit is pulled downward by the clamping adjustment component, so that the storage unit connected in the bag inlet bin is lowered into the storage bin, ensuring the smooth sinking process of the storage unit, further improving the reliability and convenience of use of the device;

[0023] The experimental waste collection device provided by the utility model has a relatively simple structure, occupies a small space, and has a relatively low manufacturing cost;

[0024] Other beneficial effects of the present invention will be described in detail in the subsequent specific implementation sections. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 It is a schematic diagram of the overall structure of the utility model (initial state);

[0027] Figure 3 This is a schematic diagram of the overall structure of the utility model (the first storage unit is sealed);

[0028] Figure 4 It is a schematic diagram of a transverse heat sealing component (or a vertical heat sealing component) of the utility model;

[0029] Figure 5 for Figure 2 A magnified image of point A;

[0030] Figure 6 for Figure 2 Enlarged view of point B.

[0031] [Description of Reference Numerals]

[0032] 1-bag inlet bin; 2-storage bin; 3-bin door; 4-storage unit; 5-reel; 6-reel support shaft; 7-heat-sealing crossbar; 8-first heat-sealing guide rail; 9-screw; 10-nut; 11-screw drive motor; 12-heat-sealing vertical rod; 13-second heat-sealing guide rail; 14-guide ramp; 15-clamping head; 16-clamping shaft; 17-clamping connecting arm; 18-first reset torsion spring; 19-clamping lifting plate; 20-control pedal; 21-reset spring; 22-pedal shaft; 23-second reset torsion spring; 24-first control wire; 25-second control wire; 26-retracting wheel; 27-guide wheel. DETAILED DESCRIPTION

[0033] In order to make the technical problems, technical solutions and advantages to be solved by the utility model clearer, the following will be described in detail with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. In addition, the technical features involved in the different embodiments of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0034] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, 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 "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a locking connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] like Figure 1 , Figure 2 As shown, an embodiment of the utility model provides an experimental waste collection device, comprising a bag inlet bin 1 and a storage bin 2. The bag inlet bin 1 is arranged on the upper layer, and the storage bin 2 is arranged on the lower layer. The bottom of the bag inlet bin 1 is connected to the top of the storage bin 2. The storage bag and the experimental waste contained therein can enter the storage bin 2 from the bag inlet bin 1 for temporary storage. When the storage bag in the storage bin 2 is full, the bin door 3 on the side wall of the storage bin 2 can be opened to transfer the storage bag.

[0037] In this embodiment, the storage bag is formed by heat-sealing the film that constitutes the storage bag. The specific method used in the formation process is: first, the bottom edge and two side edges of the two-sided film are heat-sealed to form a storage unit 4, and when the storage unit 4 is full, the top edge of the storage unit 4 is heat-sealed to ensure that the storage unit 4 is stored in the storage bin 2 in a completely sealed state, and when the bin door 3 is opened for transfer later, it will not directly contact the external environment or personnel to cause infection risks. Based on this, the device is also provided with a film winding assembly, and two groups of film winding assemblies are provided and are respectively located on both sides of the top of the bag inlet bin 1.

[0038] Specifically in this embodiment, the film winding assembly includes a reel 5 and a reel support shaft 6. A film is wound on the reel 5, and the outer end of the film extends downward into the bag inlet bin 1. The reel support shaft 6 is fixedly connected to the top of the bag inlet bin 1, and the reel 5 and the reel support shaft 6 are freely rotatably connected. Under the force applied to the end of the film (under the film tension), the reel 5 can rotate to continuously release the film to continuously provide materials constituting the storage unit 4.

[0039] At the same time, a vertical heat sealing component and a horizontal heat sealing component are arranged in the bag feeding bin 1. In the process of conveying the film to the bag feeding bin 1, the vertical heat sealing component heat seals the two side edges of the film on both sides, and the horizontal heat sealing component heat seals the bottom edges of the film on both sides, and then heat seals the top edges after filling, thereby forming a sealed storage unit 4. Based on the fact that the film winding component is continuously conveyed into the bag feeding bin 1, in this embodiment, the horizontal heat sealing component is arranged at the bottom of the bag feeding bin 1 and is horizontally distributed, and the vertical heat sealing component is arranged on both sides of the bag feeding bin 1 and is vertically distributed, and the bottom edges and top edges of the film on both sides are sealed by a single horizontal heat sealing component.

[0040] Based on this setting, the formation process of the storage bag is as follows: at the initial moment, the bottom edges of the two films are located at the bottom of the bag inlet bin 1 and aligned with the transverse heat sealing component. The transverse heat sealing component heat-seals the bottom edges of the two films and connects them into one. At the same time, the vertical heat sealing component heat-seals the side edges of the two films. At this time, the two films located in the bag inlet bin 1 are already in a three-side sealed state, while the top edge position is still open, which is regarded as an unsealed storage unit 4. Therefore, experimental waste can be put into the top of the bag inlet bin 1 and be accommodated by the storage unit 4.

[0041] At the same time Figure 3 As shown, in the process of gradually loading the storage unit 4 with experimental waste, the storage unit 4 will sink under the gravity of the experimental waste, and thus will gradually enter the storage bin 2 from the bottom of the bag inlet bin 1. Since the storage unit 4 and the film wound on the reel 5 are still continuous and unbroken, it will pull the film on the reel 5 further into the bag inlet bin 1. When this storage unit 4 is about to completely enter the storage bin 2, its top edge will align with the transverse heat sealing component, and the transverse heat sealing component will heat seal the top edge of this storage unit 4 to form a completely sealed space inside. At the same time, the top edge of this storage unit 4 can also be regarded as the bottom edge of the two-sided film currently existing in the bag inlet bin 1, and the vertical heat sealing component will heat seal the side edges of the two-sided film in the bag inlet bin 1 at the same time, thereby forming a second storage unit 4 to accommodate the experimental waste again and carry out the aforementioned cycle process.

[0042] Finally, the storage bin 2 collects a plurality of storage units 4 in a continuous and integrated form. When the storage bin 2 is full, the plurality of storage units 4 can be conveniently taken out and removed as a whole. During this process, each storage unit 4 remains completely sealed to ensure that there is no risk of infection due to direct contact with the external environment or personnel.

[0043] At the same time Figure 4 As shown, in this embodiment, the transverse heat sealing assembly includes heat sealing cross bars 7 arranged on opposite sides of the bag feeding bin 1, first heat sealing guide rails 8 arranged corresponding to the two ends of the heat sealing cross bars 7, and a heat sealing driving mechanism that drives the heat sealing cross bars 7 to move. The heat sealing cross bars 7 are arranged along the Y direction, the first heat sealing guide rails 8 are arranged along the X direction, and the two ends of the heat sealing cross bars 7 are slidably connected to the first heat sealing guide rails 8 to move along the first heat sealing guide rails 8 under the drive of the heat sealing driving mechanism. When the two are close to each other and contact each other along the X direction, the two-sided films between them can be heat-sealed as one and sealed.

[0044] The heat sealing drive mechanism can be driven by a cylinder or a screw 9. Since the two heat sealing cross bars 7 need to be driven to move toward or away from each other at the same time, it is preferred to use a screw 9 and two nuts 10 with opposite rotation directions to drive the heat sealing cross bars 7 so as to simplify the structure as much as possible. Based on this, the heat sealing drive mechanism includes a screw 9, two nuts 10 with opposite rotation directions, and a screw drive motor 11. The output end of the screw drive motor 11 is connected to the screw 9 (through a coupling) in a transmission manner, thereby driving the screw 9 to rotate and controlling the two nuts 10 with opposite rotation directions and the connected heat sealing cross bars 7 to move toward or away from each other.

[0045] Similarly, the vertical heat sealing assembly includes heat sealing vertical rods 12 arranged on opposite sides of the bag feeding bin 1, second heat sealing guide rails 13 arranged corresponding to the two ends of the heat sealing vertical rods 12, and a heat sealing drive mechanism that drives the heat sealing vertical rods 12 to move. Among them, the heat sealing vertical rods 12 are arranged vertically (Z direction), and the second heat sealing guide rails 13 are also arranged along the X direction. The two ends of the heat sealing vertical rods 12 are slidably connected to the second heat sealing guide rails 13 so as to move along the second heat sealing guide rails 13 under the drive of the heat sealing drive mechanism. When the two are close to each other and contact each other along the X direction, the two-sided film between them can be heat-sealed into one and sealed. The form of the heat sealing drive mechanism of the vertical heat sealing assembly is consistent with the above, and will not be repeated here. Among them, electric heating wires are arranged in the heat sealing cross bar 7 and the heat sealing vertical rods 12. After power is turned on, the electric heating wires generate heat to melt the film, and form an integrated seal after cooling. This part itself is the prior art.

[0046] It should be noted that in this embodiment, the reel 5 and the reel support shaft 6 are arranged along the Y direction, so the bottom edge and the top edge of the film released by them are also distributed along the Y direction. The bottom edge and the top edge of the film on both sides can be fully sealed by the heat sealing cross bar 7 arranged along the Y direction. Two groups of vertical heat sealing components are provided, which are respectively located at the front and rear sides of the bag feeding bin 1 shown in the figure, so as to heat seal the front and rear side edges of the film on both sides.

[0047] In this embodiment, the heat-sealing drive mechanisms of the transverse heat-sealing assembly and the vertical heat-sealing assembly are all controlled by a controller, that is, the controller controls the forward and reverse rotation of the screw drive motor 11, thereby controlling the action of the heat-sealing crossbar 7 or the heat-sealing vertical rod 12 to complete the heat-sealing of the two-sided film. It is understandable that the heat-sealing crossbar 7 or the heat-sealing vertical rod 12 needs to perform actions according to a certain rule so that the bottom and top positions of each storage unit 4 can be heat-sealed, and the side can also be heat-sealed, and it is not advisable to heat-seal too fast so that the size of the storage unit 4 is too small to reduce the experimental waste holding capacity. Therefore, it is necessary to control the length of the two-sided film so that after the bottom edge of the two-sided film is heat-sealed, the top edge is aligned with the transverse heat-sealing assembly after moving a fixed length to be heat-sealed, to ensure that each storage unit 4 is uniform and the stability of the heat-sealing control.

[0048] As mentioned above, it is necessary to determine the stroke of the film entering the bag feeding bin 1. When the film moves the specified stroke, the transverse heat sealing component performs heat sealing, and the vertical heat sealing component performs heat sealing synchronously (or slightly behind). There are two ideas. One is to directly measure the distance the film moves by a sensor; the other is to measure the rotation angle (number of cycles) of the reel 5, which can also be measured by a sensor, thereby indirectly obtaining the length of the released film. Considering that the film is easily deformed during the process of adding experimental waste, directly measuring the distance the film moves may be inaccurate. Therefore, it is preferred to obtain the length of the released film by measuring the rotation angle of the reel 5. When the length of the released film reaches the preset value, the controller controls the actions of the transverse heat sealing component and the vertical heat sealing component to complete a heat seal.

[0049] As a preferred embodiment, in this embodiment, a guiding slope 14 is also provided at the top of the bag feeding bin 1. The guiding slope 14 is provided one-to-one with the roll 5 and is inclined toward the center of the bag feeding bin 1, so as to guide the film released by the roll 5 into the bag feeding bin 1 and improve the spreading degree of the film, so as to avoid the film flanging, winding and other effects on bagging and heat sealing as much as possible. At the same time, by providing the guiding slopes 14 on both sides, the two-sided films can be better aligned, so that the vertical heat sealing assembly and the horizontal heat sealing assembly can accurately heat seal the bottom edge, top edge and side edge of the two-sided films.

[0050] It is understandable that when the bottom and side edges of the two films are sealed by the horizontal heat-sealing component and the vertical heat-sealing component respectively, the two films may stick together, causing the top edge of the storage unit 4 to also stick together and making it difficult to put in the experimental waste. In this embodiment, by setting the guide slope 14, and there is a certain distance between the guide slopes 14, when the experimental waste is put in, the experimental waste can also move along the guide slope 14 and contact with the top edge position of the storage unit 4 (the top edge position of the storage unit 4 will be more evenly spread under the setting of the guide slope 14), and then the top edge position of the storage unit 4 is stretched open by its own gravity or by applying a certain external force, ensuring that the experimental waste falls smoothly into the storage unit 4, further improving the convenience of experimental waste delivery.

[0051] The experimental waste collection device provided in this embodiment is used. After the bottom and side edges of the two-sided film are heat-sealed to form a storage unit 4, the experimental waste is put into the storage unit 4 and the storage unit 4 is sunk by gravity until the top edge of the storage unit 4 is heat-sealed, and the next storage unit 4 cycle is performed. However, in actual use, the storage unit 4 may not be able to sink (overcoming film tension, friction, etc.) due to insufficient gravity for the experimental waste to be put in, so further improvement is needed.

[0052] At the same time Figure 5 , Figure 6As shown, the experimental waste collection device provided in this embodiment is also provided with a clamping adjustment assembly, including a clamping head 15, a clamping shaft 16, a clamping connecting arm 17 and a clamping control unit. Among them, a pair of clamping heads 15 are provided, and the root of the clamping head 15 is rotatably connected to the clamping shaft 16, and a first reset torsion spring 18 is provided, and the two ends of the first reset torsion spring 18 are respectively connected to the roots of the two clamping heads 15. The clamping shaft 16 is fixedly provided at the first end of the clamping connecting arm 17, and the second end of the clamping connecting arm 17 is connected to the clamping control unit.

[0053] In this embodiment, the clamping control unit includes a clamping lifting plate 19 connected to the second end of the clamping connecting arm 17, and a control pedal 20 arranged on the clamping lifting plate 19. Among them, the storage bin 2 is provided with a control slot, the clamping lifting plate 19 is placed in the control slot, and is movably connected to the control slot, and a return spring 21 is also arranged between the clamping lifting plate 19 and the control slot. The control pedal 20 is connected to a pedal shaft 22 on the clamping lifting plate 19, and the pedal shaft 22 is rotatably connected to the clamping lifting plate 19. At the same time, a second return torsion spring 23 is arranged on the pedal shaft 22, and the two ends of the second return torsion spring 23 are respectively fixed to the pedal shaft 22 and the clamping lifting plate 19.

[0054] The clamping adjustment assembly controls the closing and clamping of the clamping head 15 by controlling the steel wire, while the opening of the clamping head 15 is completed by elastic reset. Specifically, a first control steel wire 24 and a second control steel wire 25 are provided, and the first ends of the first control steel wire 24 and the second control steel wire 25 are respectively connected to the roots of the two clamping heads 15, and the second ends of the first control steel wire 24 and the second control steel wire 25 are integrated and fixedly connected to the retracting and releasing wheel 26 connected to the pedal shaft 22. Therefore, when the user steps on the control pedal 20, the second ends of the first control steel wire 24 and the second control steel wire 25 can be shortened, and the first ends of the first control steel wire 24 and the second control steel wire 25 move toward the second ends, thereby simultaneously driving the two clamping heads 15 to close and clamp the storage unit 4 therebetween (opposite to the rotation direction of the clamping shaft 16). Then, as the user steps down further, the clamping lifting plate 19 descends, driving the clamping connecting arm 17, the clamping shaft 16, and the clamping head 15 to descend as a whole, thereby sinking the storage unit 4 and avoiding the problem that the storage unit 4 cannot sink. After the storage unit 4 sinks into place, the user releases the control pedal 20. On the one hand, the control pedal 20 and the pedal shaft 22 are reset under the action of the second reset torsion spring 23, releasing the control wire, and the clamping head 15 is opened under the action of the first reset torsion spring 18; on the other hand, the clamping lifting plate 19 is reset under the action of the reset spring 21, so that the clamping head 15 rises to the initial position again, so as to be ready to assist when the storage unit 4 cannot sink in the future.

[0055] It should be noted that in this embodiment, the clamping head 15 is arranged in the storage bin 2, and preferably the initial position is located at the top of the storage bin 2. Since the storage units 4 are continuous, when the aligned storage units 4 are pulled downward in the storage bin 2, the storage units 4 in the bag inlet bin 1 can be sunk accordingly. In addition, in order to facilitate the user's foot operation, the clamping lifting plate 19 should be set as low as possible while ensuring the travel. Therefore, in this embodiment, the clamping connecting arm 17 adopts an L shape, and a necessary guide wheel 27 is set at the corner position, so that the first control wire 24 or the second control wire 25 can turn by relying on the guide wheel 27 to connect the clamping head 15 and the retracting wheel 26.

[0056] It should also be noted that when the weight of the experimental waste is too heavy, it may cause the storage unit 4 to fall quickly. At this time, the transverse heat sealing component will not have time to heat seal the top edge of the storage unit 4, thus making the length of the storage unit 4 greater than the normal value. When the subsequent transverse heat sealing component is heat sealed, the heat-sealed position of the storage unit 4 is different from that of the normal storage unit 4, and the side is not completely heat sealed. Of course, the next storage unit 4 can still be heat-sealed normally and will not be affected, only the storage unit 4 is not in a completely sealed state. When the number of such storage units 4 is small, it is also acceptable. At the same time, for experimental waste, its weight is usually controllable, and there will be no overweight experimental waste or overweight experimental waste will not be placed in this device.

[0057] When the experimental waste collection device provided by the present embodiment is used to collect experimental waste, the bottom edge of the two-sided film released from the reel 5 is aligned with the horizontal heat sealing component, and the horizontal heat sealing component heat-seals the bottom edge of the two-sided film, and the vertical heat sealing component seals the side edge of the two-sided film, thereby forming the unsealed i-th storage unit 4. In the process of continuously feeding experimental waste into the device, the storage unit 4 continues to descend under the action of gravity and gradually enters the storage bin 2 until the top edge is aligned with the horizontal heat sealing component. The horizontal heat sealing component heat-seals the top edge of the storage unit 4, and the vertical heat sealing component seals the side edge of the two-sided film in the bag inlet bin 1 to form the (i+1)th storage unit 4, which is circulated in sequence until the storage bin 2 is full and then transferred. When the storage unit 4 cannot descend into the storage bin 2 under the action of gravity, the clamping adjustment component is used to pull the previous storage unit 4 downward, so that the next storage unit 4 connected in the bag inlet bin 1 is lowered into the storage bin 2, so as to ensure the smooth progress of the above process.

[0058] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. An experimental waste collection device, characterized in that: It comprises a bag feeding bin (1), a storage bin (2), a film winding assembly, a transverse heat sealing assembly and a vertical heat sealing assembly; The bottom of the bag inlet bin (1) is connected to the top of the storage bin (2), and the storage bin (2) is provided with a bin door (3) that can be opened and closed; The film winding assembly is provided in two groups and is respectively located on both sides of the top of the bag feeding bin (1). The film winding assembly is used to wind the film and continuously release it into the bag feeding bin (1). The two sides of the film are heat-sealed to form a storage unit (4); The transverse heat sealing component is arranged at the bottom of the bag feeding bin (1) and is distributed horizontally, and the vertical heat sealing component is arranged on both sides of the bag feeding bin (1) and is distributed vertically. The vertical heat sealing component is used to heat seal the two side edges of the two-sided film, and the transverse heat sealing component is used to heat seal the bottom edge and the top edge of the two-sided film in sequence to form the sealed storage unit (4).

2. The experimental waste collection device according to claim 1, characterized in that: The film winding assembly comprises a reel (5) and a reel support shaft (6), a film is wound on the reel (5), the outer end of the film extends downward into the bag feeding bin (1), the reel (5) is rotatably connected to the reel support shaft (6), and the reel support shaft (6) is fixedly connected to the top of the bag feeding bin (1).

3. The experimental waste collection device according to claim 2, characterized in that: A guiding slope (14) is also provided at the top of the bag feeding bin (1), and the guiding slope (14) is arranged one-to-one with the roll (5). The guiding slope (14) is inclined toward the center of the bag feeding bin (1) and is used to guide the film released from the roll (5) into the bag feeding bin (1).

4. The experimental waste collection device according to claim 2, characterized in that: The film winding assembly also includes a sensor for detecting the rotation angle of the roll (5).

5. The experimental waste collection device according to claim 1, characterized in that: The transverse heat sealing assembly comprises heat sealing cross bars (7) arranged on opposite sides of the bag feeding bin (1), first heat sealing guide rails (8) arranged corresponding to the two ends of the heat sealing cross bars (7), and a heat sealing driving mechanism for driving the heat sealing cross bars (7) to move, and a heating wire is arranged inside the heat sealing cross bars (7).

6. The experimental waste collection device according to claim 5, characterized in that: Two groups of the vertical heat-sealing components are provided, and each group of the vertical heat-sealing components comprises heat-sealing vertical rods (12) arranged on two opposite sides of the bag feeding bin (1), second heat-sealing guide rails (13) arranged corresponding to the two ends of the heat-sealing vertical rods (12), and a heat-sealing driving mechanism for driving the heat-sealing vertical rods (12) to move, and electric heating wires are arranged inside the heat-sealing vertical rods (12).

7. The experimental waste collection device according to claim 6, characterized in that: The heat sealing drive mechanism comprises a screw (9), two nuts (10) with opposite rotation directions and a screw driving motor (11); the output end of the screw driving motor (11) is drivingly connected to the screw (9); the two nuts (10) with opposite rotation directions cooperate with the screw (9); and the two nuts (10) with opposite rotation directions are respectively connected to the heat sealing vertical rods (12) or the heat sealing horizontal rods (7) on opposite sides.

8. The experimental waste collection device according to claim 1, characterized in that: The experimental waste collection device is also provided with a clamping adjustment component, which includes a clamping head (15), a clamping shaft (16), a clamping connecting arm (17) and a clamping control unit. The clamping head (15) is provided in pair, and the root of the clamping head (15) is rotatably connected to the clamping shaft (16). The clamping shaft (16) is sleeved with a first reset torsion spring (18), and the two ends of the first reset torsion spring (18) are respectively connected to the two clamping heads (15). The clamping shaft (16) is fixedly arranged on the first end of the clamping connecting arm (17), and the second end of the clamping connecting arm (17) is connected to the clamping control unit, and the clamping control unit is used to control the retraction of the clamping head (15).

9. The experimental waste collection device according to claim 8, characterized in that: The clamping control part comprises a clamping lifting plate (19) connected to the second end of the clamping connecting arm (17), and a control pedal (20) arranged on the clamping lifting plate (19); the storage bin (2) is provided with a control slot, the clamping lifting plate (19) is arranged in the control slot and is movably connected to the control slot, and a return spring (21) is also arranged between the clamping lifting plate (19) and the control slot; the clamping lifting plate (19) is rotatably provided with a pedal shaft (22), the control pedal (20) is connected to the pedal shaft (22), and the pedal shaft (22) is sleeved with a second return torsion spring (23), and the two ends of the second return torsion spring (23) are respectively fixed to the pedal shaft (22) and the clamping lifting plate (19); a control steel wire is arranged between the pedal shaft (22) and the clamping head (15); The pedal shaft (22) is fixedly connected to a retractable wheel (26), the clamping connecting arm (17) is rotatably connected to a guide wheel (27), the control steel wire comprises a first control steel wire (24) and a second control steel wire (25), the first ends of the first control steel wire (24) and the second control steel wire (25) are respectively connected to the two clamping heads (15), the second ends of the first control steel wire (24) and the second control steel wire (25) are integrated into one and fixedly connected to the retractable wheel (26), and the first control steel wire (24) and the second control steel wire (25) are guided and bent by the guide wheel (27).

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