Automatic closing device for medical waste bag

Abstract

The application discloses a medical waste bag automatic closing device, which comprises a supporting module, two closing clamps, a driving module, a first fixing component, a movable hook and a first closing rubber band. The two closing clamps can move towards each other to close the closing channel. The first closing rubber band is sleeved on the first fixing component and the movable hook and is in a taut state. When the two closing clamps move towards each other and contact the first movable hook, the first closing rubber band is loosened. By controlling the two closing clamps to move towards each other, the two closing clamps can clamp the waste bag, the automatic closing function of the waste bag is realized, and the risk of personnel infection caused by gas overflow in the waste bag due to artificial knotting of the waste bag can be avoided. When the two closing clamps move, the first movable hook is triggered to move, the first closing rubber band is loosened, the first closing rubber band guides the waste bag, the waste bag is prevented from being squeezed into the gap of the closing clamp, and the stability of the automatic closing is improved.

Description

Technical Field

[0001] This invention relates to the field of trash can technology, and more particularly to an automatic closing device for medical waste bags. Background Technology

[0002] During the collection of medical waste, especially infectious waste, infectious aerosols can spill into the air when the trash can is opened, potentially contaminating surrounding personnel and the environment. In hospital wards and other areas with high patient density, medical waste is typically generated at a few specific times. When the waste hasn't reached its packaging capacity, it's stored in medical waste bags inside the trash can. However, during atmospheric pressure storage, the seals between the trash can lid and the waste bag are not always airtight, posing a risk of infectious aerosol spillage. Furthermore, during manual collection and packaging of medical waste, the tying process often causes gas to escape from the waste bag, increasing the risk of infection for personnel.

[0003] Existing smart trash cans have automatic clamping and even heat-sealing devices, but medical waste bags require gooseneck knots and cannot be sealed using heat-sealing. Current technologies for closing trash bags mostly use clamping in two vertical directions within a horizontal plane, requiring two drive systems. Some existing technologies use a shutter mechanism similar to a camera for closing, such as patent 201710512410.8. Many existing technologies also use a single drive system to achieve coordinated closing in two directions, with drive methods including gears, lead screws, synchronous belts, and steel cables, such as patents 202210651717.7, 202222821221.8, and 202010982104.2. These existing solutions are relatively complex, require high system assembly precision, have complex force transmission, and may even have issues with insufficient pressure angle. Most importantly, these interlaced closing rods can embed into the medical waste bag during actual operation.

[0004] Therefore, existing technologies need to be improved and developed. Summary of the Invention

[0005] In view of the above-mentioned defects in the prior art, the purpose of the present invention is to provide an automatic closing device for medical waste bags, so as to solve the technical problem that the waste bag gets stuck in the closing device when the interlaced bars of the existing automatic closing waste bin are clamped.

[0006] The technical solution adopted by the present invention to solve the above problems is as follows:

[0007] An automatic closing device for medical waste bags includes: a support module, wherein the support module is provided with a closing channel, one end of the closing channel is used to connect with a trash can, and the other end is used to fit a trash bag;

[0008] Two clamps are provided on the support module. The two clamps are respectively located on both sides of the closing channel and can move towards each other to close the closing channel.

[0009] A drive module, mounted on the support module, is used to drive the tying clamp;

[0010] Two first fixed components and two first movable hooks are arranged alternately in a ring around the closing channel to form a quadrilateral frame; and the line connecting the two first movable hooks is perpendicular to the moving direction of the tying clip.

[0011] The first elastic band is fitted onto the quadrilateral frame and is taut.

[0012] The first elastic band is hung on the first movable hook. When the two elastic bands move toward each other, they come into contact with the first movable hook, causing the first elastic band to loosen.

[0013] Optionally, the support module has a receiving cavity communicating with the closing channel, and the two tying clips, the drive module, the first fixing component, the first movable hook and the first tying elastic band are all located in the receiving cavity;

[0014] The automatic sealing device for medical waste bags also includes:

[0015] Two second fixed components and two second movable hooks are disposed within the receiving cavity and located above the tying clip. The second fixed components and the second movable hooks are arranged alternately in a ring around the closing channel to form a quadrilateral frame. Furthermore, the line connecting the two second movable hooks is perpendicular to the moving direction of the tying clip.

[0016] The second elastic band is fitted onto the quadrilateral frame and is taut.

[0017] Optionally, the first active hook includes:

[0018] A first base is fixed to the bottom wall of the accommodating cavity, and a limiting groove is provided on the upper part of the first base;

[0019] The first rotating shaft is disposed within the limiting groove;

[0020] The first pull rod has an end that is rotatably connected to the first rotating shaft. The front end has a first groove with an upward opening. The first groove is connected to the first elastic band. The upper surface of the middle part has a first protrusion. When the two elastic bands move towards each other, the lower surface of one of the elastic bands contacts the first protrusion.

[0021] The first elastic element has one end connected to the bottom wall of the accommodating cavity and the other end connected to the lower surface of the middle part of the pull rod.

[0022] Optionally, the second active hook includes:

[0023] The second base is fixed to the top wall of the accommodating cavity;

[0024] The second rotation axis is provided on the second base;

[0025] The second pull rod is rotatably connected to the second rotating shaft in the middle. The front end is provided with a second groove with an upward opening. The second groove is connected to the second tying elastic band. The lower surface of the end is provided with a second protrusion. When the two tying clips move towards each other, the second protrusion on the upper surface of the other tying clip abuts against it.

[0026] A fixing block is connected to the base;

[0027] The second elastic element has one end connected to the upper surface of the end of the second pull rod and the other end connected to the lower surface of the fixed block.

[0028] Optional,

[0029] The two said clamps include:

[0030] The first tying clip has a semi-circular arc opening on one side facing the closing channel, and a first pressing part is provided on the lower surface of the first tying clip, which is used to abut against the first protrusion.

[0031] The second tying clip is located above the second tying clip. The second tying clip has a semi-circular arc opening on one side facing the closing channel. The upper surface of the second tying clip has a second pressing part, which is used to abut against the second protrusion.

[0032] Optionally, the driving module includes:

[0033] Drive wheel;

[0034] The driven wheel is arranged opposite to the driving wheel;

[0035] A synchronous belt is installed at both ends on the driving pulley and the driven pulley respectively. The portion of the synchronous belt below the driving pulley and the driven pulley is connected to the first tie clamp, and the portion above the driving pulley and the driven pulley is connected to the second tie clamp, for driving the first tie clamp and the second tie clamp to move synchronously towards each other.

[0036] A drive motor is located on the bottom wall of the accommodating cavity, and the shaft of the drive motor is connected to the drive wheel.

[0037] Optionally, the drive module further includes:

[0038] A support rod is arranged parallel to the timing belt and located on the side of the timing belt away from the first and second clamps;

[0039] The first connector has one end slidably connected to the support rod and the other end connected to the first buckle clip. The middle part of the first connector is connected to the portion of the timing belt located below the driving pulley and the driven pulley.

[0040] The second connector has one end slidably connected to the support rod and the other end connected to the second clamp. The middle part of the second connector is connected to the portion of the timing belt located above the driving pulley and the driven pulley.

[0041] Optionally, the drive module further includes a sensor located at the bottom of the support module, at the edge of the first closure clip facing away from the closing channel and / or at the edge of the second closure clip facing away from the closing channel.

[0042] Optionally, the support module includes:

[0043] The support frame, with the trash can positioned below it.

[0044] An installation frame is provided on the support frame, and the installation frame is provided with the closing channel and a receiving cavity communicating with the closing channel;

[0045] A sealing cap, hinged to the top of the mounting frame, is used to open or close the sealing channel.

[0046] Optionally, the support module further includes a sealing cover plate, which is disposed on the top of the mounting frame and has an avoidance opening communicating with the closing channel.

[0047] In summary, the beneficial effects of this invention are:

[0048] The automatic sealing device for medical waste bags of the present invention controls two sealing clamps to move towards each other, clamping the waste bag and achieving automatic sealing of the waste bag. This avoids the risk of gas leakage and infection caused by manual knotting of the waste bag. By applying a pre-tightening force to the first sealing elastic band and contacting the first movable hook during the movement of the two sealing clamps, the first sealing elastic band is released, releasing the pre-tightening force and limiting the waste bag. This limitation prevents the waste bag from being squeezed into the gaps of the sealing clamps, improving the stability of the automatic sealing. Attached Figure Description

[0049] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0050] Figure 1 This is a structural diagram of the automatic medical waste bag sealing device of the present invention;

[0051] Figure 2 This is a schematic diagram of the structure of the first movable hook and the first binding elastic band in this invention;

[0052] Figure 3 This is a cross-sectional view of the closure clip and the first movable hook in this invention;

[0053] Figure 4 This is a schematic diagram of the structure of the first movable hook in this invention;

[0054] Figure 5 This is a schematic diagram of the structure of the second movable hook in this invention;

[0055] Figure 6 This is a schematic diagram of the drive module in this invention.

[0056] Wherein: 100, support module; 110, support frame; 120, mounting frame; 130, sealing cap; 200, first clamping clip; 210, first pressing section; 300, second clamping clip; 310, second pressing section; 400, drive module; 410, synchronous belt; 420, drive wheel; 421, driven wheel; 430, drive motor; 440, support rod; 450, second connecting piece; 460, first connecting piece; 470, sensor; 500, first fixing piece. 600, First movable hook; 610, First base; 620, First rotating shaft; 630, First pull rod; 640, First elastic element; 650, First protrusion; 660, First groove; 700, First binding elastic band; 800, Second movable hook; 810, Second base; 820, Second rotating shaft; 830, Second pull rod; 840, Fixing block; 850, Second elastic element; 860, Second protrusion; 870, Second groove; 900, Second binding elastic band. Detailed Implementation

[0057] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative effort are all within the scope of protection of the present invention.

[0058] Please see Figure 1 , Figure 2 and Figure 3 In one embodiment of the present invention, an automatic closing device for medical waste bags is disclosed, comprising a support module 100, wherein the support module 100 is provided with a closing channel, one end of which is used to connect with a waste bin, and the other end is used to fit a waste bag; two tying clips are disposed on the support module 100, the two tying clips are respectively disposed on both sides of the closing channel and can move towards each other to close the closing channel; a drive module 400 is disposed on the support module 100 for driving the tying clips; two first fixed components and two first movable components. Hook 600, the first fixed component and the first movable hook 600 are arranged alternately in a ring around the closing channel to form a quadrilateral frame; and the line connecting the two first movable hooks 600 is perpendicular to the moving direction of the tying clip; the first tying elastic band 700 is sleeved on the quadrilateral frame and is in a taut state; wherein, the first tying elastic band 700 is hung on the first movable hook 600, and when the two tying clips move towards each other, they come into contact with the first movable hook 600, causing the first tying elastic band 700 to loosen.

[0059] Specifically, the opening edge of the garbage bag is located at the top of the closing channel, and the bottom of the garbage bag passes through the closing channel into the garbage bin. When the garbage in the garbage bin reaches the preset capacity, the control drive module 400 drives the two sealing clamps to move towards each other. When the two sealing clamps move, they contact the first movable hook 600, causing the first sealing elastic band 700 to loosen. The two sides of the first sealing elastic band 700 move towards each other, so that the first sealing elastic band 700 forms a long strip-shaped guide channel, confining the garbage bag within the guide channel. The two sealing clamps clamp the garbage bag from both ends of the guide channel toward the middle of the guide channel, thereby realizing the automatic closing of the garbage bag.

[0060] In this embodiment, by controlling the two sealing clamps to move towards each other, the two sealing clamps clamp the garbage bag, realizing the automatic sealing function of the garbage bag. This avoids the risk of gas leakage and personnel infection caused by manual knotting of the garbage bag. By applying a pre-tightening force to the first sealing elastic band 700, and by the two sealing clamps contacting the first movable hook 600 during the movement, the first sealing elastic band 700 is released, releasing the pre-tightening force. This allows the first sealing elastic band 700 to limit the garbage bag, preventing the garbage bag from being squeezed into the gaps of the sealing clamps and improving the stability of the automatic sealing.

[0061] Please see Figure 2 and Figure 3 The support module 100 has a receiving cavity communicating with the closing channel. The two sealing clips, the drive module 400, the first fixing component, the first movable hook 600, and the first sealing elastic band 700 are all located in the receiving cavity. The automatic sealing device for medical waste bags also includes two second fixing components and two second movable hooks 800. The two second fixing components and two second movable hooks 800 are located in the receiving cavity and above the sealing clips. The second fixing components and the second movable hooks 800 are arranged alternately in a ring around the closing channel to form a quadrilateral frame. Furthermore, the line connecting the two second movable hooks 800 is perpendicular to the moving direction of the sealing clip. The second sealing elastic band 900 is sleeved on the quadrilateral frame and is in a taut state.

[0062] Specifically, the control drive module 400 drives the two sealing clamps to move towards each other. When the two sealing clamps move, they contact the second movable hook 800, causing the second sealing elastic band 900 to loosen. The two sides of the second sealing elastic band 900 move towards each other, so that the second sealing elastic band 900 forms a long strip-shaped guide channel, which confines the garbage bag within the guide channel. The two sealing clamps clamp the garbage bag from both ends of the guide channel toward the middle of the guide channel, thereby realizing the automatic closing of the garbage bag.

[0063] In this embodiment, by setting a first sealing elastic band 700 and a second sealing elastic band 900 above and below the two sealing clips respectively, the shape and size of the garbage bag neck between the two sealing elastic bands are consistent, so that the two sealing clips can clamp better.

[0064] Please see Figure 4The first movable hook 600 includes a first base 610 fixed to the bottom wall of the accommodating cavity, with a limiting groove on the upper part of the first base 610; a first rotating shaft 620 disposed in the limiting groove; a first pull rod 630, the end of which is rotatably connected to the first rotating shaft 620, and the front end of which is provided with a first groove 660 opening upwards, the first groove 660 being connected to the first tying elastic band 700, and the upper surface of the middle part being provided with a first protrusion 650, when the two tying clips move towards each other, the lower surface of one of the two tying clips contacts the first protrusion 650; and a first elastic element 640, one end of which is connected to the bottom wall of the accommodating cavity, and the other end of which is connected to the lower surface of the middle part of the pull rod.

[0065] In this embodiment, the first protrusion 650 can be configured as a bullseye ball bearing, which is installed on the upper surface of the middle part of the first pull rod 630 and fully exposes the sliding ball bearing.

[0066] Specifically, when the two ties move, the lower surface of one of the ties first contacts the bullseye ball fixed to the upper surface of the middle part of the first pull rod 630, thereby causing the first pull rod to rotate clockwise. The first elastic element 640 is pressed against the bottom wall of the accommodating cavity. At the same time, the front end of the first pull rod 630 rotates downward, thereby releasing the first ties elastic band 700 provided in the first groove 660. After the lower surface of the other ties ends its contact with the second protrusion 860, the first elastic element 640 returns to its original position, lifting the first pull rod 630 and causing the front end of the first pull rod 630 to rise.

[0067] In this embodiment, the first elastic band 700 is automatically popped out by setting the first protrusion 650 and the first pull rod 630, which is simple in structure.

[0068] Please see Figure 5 The second movable hook 800 includes: a second base 810, fixed to the top wall of the accommodating cavity; a second rotating shaft 820, disposed on the second base 810; a second pull rod 830, rotatably connected to the second rotating shaft 820 in the middle, with a second groove 870 opening upward at the front end, the second groove 870 being connected to the second tying elastic band 900, and a second protrusion 860 on the lower surface of the end, which abuts against the second protrusion 860 on the upper surface of the other tying clip when the two tying clips move toward each other; a fixing block 840, connected to the base; and a second elastic element 850, one end of which is connected to the upper surface of the end of the second pull rod 830, and the other end of which is connected to the lower surface of the fixing block 840.

[0069] In this embodiment, the second protrusion 860 can be configured as a bullseye ball bearing, which is installed on the lower surface of the end of the second pull rod 830 and fully exposes the sliding ball bearing.

[0070] Specifically, when the two ties move, the upper surface of the other ties first contacts the bullseye ball fixed to the lower surface of the end of the second pull rod 830, thereby causing the second pull rod 830 to rotate clockwise. The second elastic element 850 is pressed against the fixed block 840. At the same time, the front end of the second pull rod 830 descends, and the second ties elastic band 900 located in the second groove 870 is released. After the upper surface of one of the ties ends its contact with the second protrusion 860, the second elastic element 850 returns to its original position, pressing down on the end of the second pull rod 830, and the front end of the second pull rod 830 rises.

[0071] In this embodiment, the second protrusion 860 and the second pull rod 830 are set to realize the automatic pop-out of the second binding elastic band 900. The structure is simple. The installation of bullseye ball bearings makes the contact between the bullseye ball bearings and the binding clip smoother, improving the stability of the closing process.

[0072] Please see Figure 3 and Figure 6 The two clamps include: a first clamp 200, which has a semi-circular opening on one side facing the closing channel, and a first pressing part 210 on the lower surface of the first clamp 200, which is used to abut against the first protrusion 650; and a second clamp 300, which is located above the first clamp 200, and has a semi-circular opening on one side facing the closing channel, and a second pressing part 310 on the upper surface of the second clamp 300, which is used to abut against the second protrusion 860.

[0073] In this embodiment, the contact surface of the first extrusion part 210 has a structure with slopes on both sides and a plane in the middle.

[0074] Specifically, the second sealing clip 300 is located above the first sealing clip 200, forming an interlaced clamping method. When the closing channel is open, the semi-circular opening of the first sealing clip 200 and the semi-circular opening of the second sealing clip 300 form a circular clamping space. When the first sealing clip 200 and the second sealing clip 300 move towards each other, the circular clamping space gradually shrinks until the first sealing clip 200 and the second sealing clip 300 clamp the garbage bag, completing the closing of the garbage bag. When the first sealing clamp 200 and the second sealing clamp 300 move toward each other, the first squeezing part 210 gradually approaches the first protrusion 650, and then squeezes the first protrusion 650, triggering the first sealing elastic band 700 on the first pull rod 630 to pop out. At the same time, the second squeezing part 310 gradually approaches the second protrusion 860, and then squeezes the second protrusion 860, triggering the second sealing elastic band 900 on the second pull rod 830 to pop out, thus guiding the garbage bag. When the first sealing clamp 200 and the second sealing clamp 300 continue to move toward each other, the first squeezing part 210 moves away from the first protrusion 650, and the first elastic element 640 resets the first pull rod 630. The second squeezing part 310 moves away from the second protrusion 860, and the second elastic element 850 resets the second pull rod 830.

[0075] In this embodiment, the automatic medical waste bag closing device forms an opening for the waste bag to pass through when the collection connection is normal. It does not require leaving a space between the first closing clamp 200 and the second closing clamp 300 for the waste bag to pass through, thus saving the space occupied by the drive execution module.

[0076] Please see Figure 6 The drive module 400 includes a drive wheel 420, a driven wheel 421, a synchronous belt 410, and a drive motor 430. The driven wheel 421 is disposed opposite to the drive wheel 420. The two ends of the synchronous belt 410 are respectively mounted on the drive wheel 420 and the driven wheel 421. The portion of the synchronous belt 410 located below the drive wheel 420 and the driven wheel 421 is connected to the first cable tie 200, and the portion located above the drive wheel 420 and the driven wheel 421 is connected to the second cable tie 300, for driving the first cable tie 200 and the second cable tie 300 to move synchronously towards each other. The drive motor 430 is disposed on the bottom wall of the accommodating cavity, and the rotating shaft of the drive motor 430 is connected to the drive wheel 420.

[0077] Specifically, the drive motor 430's shaft drives the drive wheel 420 to rotate. The outer surface of the drive wheel 420 meshes with the inner surface of the synchronous belt 410, causing the synchronous belt 410 to rotate. When the synchronous belt 410 rotates clockwise, the portion of the synchronous belt 410 located below the drive wheel 420 and the driven wheel 421 moves to the left, thereby driving the first sealing clamp 200 to move to the left. Simultaneously, the portion of the synchronous belt 410 located above the drive wheel 420 and the driven wheel 421 moves to the right, thereby driving the second sealing clamp 300 to move to the right. This achieves synchronous opposite movement of the first sealing clamp 200 and the second sealing clamp 300, clamping or loosening the medical waste bag.

[0078] In this embodiment, by connecting the first clamp 200 and the second clamp 300 to different positions of the synchronous belt 410, only one synchronous belt 410 needs to be driven to rotate to achieve synchronous movement of the two clamps in opposite directions. There is no need to consider the speed difference between the two clamps. The structure is simple and the effect is stable.

[0079] In this embodiment, the drive module 400 further includes a support rod 440, which is arranged parallel to the synchronous belt 410; a first connector 460, one end of which is slidably connected to the support rod 440 via a linear bearing, and the other end of which is connected to the first clamp 200; the middle part of the first connector 460 is connected to the portion of the drive pulley 420 and the driven pulley 421 located below the synchronous belt 410 pulley; a second connector 450, one end of which is slidably connected to the support rod 440 via a linear bearing, and the other end of which is connected to the second clamp 300; the middle part of the second connector 450 is connected to the portion of the synchronous belt 410 located above the drive pulley 420 and the driven pulley 421.

[0080] Specifically, when the timing belt 410 rotates clockwise, the timing belt 410 drives the first connector 460 to move to the left, the first connector 460 drives the first tether clamp 200 to move to the left, and at the same time, the second connector 450 moves to the right, the second connector 450 drives the second tether clamp 300 to move to the right, so that the first tether clamp 200 and the second tether clamp 300 move synchronously towards each other.

[0081] Since the timing belt 410 is made of a soft material, and both the first and second sealing clamps 200 and 300 are driven only on one side, the first and second sealing clamps 200 and 300 are prone to tilting in the horizontal direction during the movement of the timing belt 410, which can cause jamming. In this embodiment, by setting the first connector 460 to connect to the first sealing clamp 200 and the second connector 450 to connect to the second sealing clamp 300, the support rod 440 limits the first connector 460 and the second connector 450 in the horizontal direction, preventing the first sealing clamp 200 and the second sealing clamp 300 from rotating in the horizontal direction, thereby improving the stability of the garbage bag closing process.

[0082] In this embodiment, two support rods 440 are provided, and the two support rods 440 are arranged opposite each other on both sides of the closing channel. One support rod 440 is connected to the first connector 460 and the second connector 450, and the other support rod 440 is connected to the first knot clamp 200 through a third connector and to the second knot clamp 300 through a fourth connector. The support rods 440 are provided on both sides of the knot clamp to make the movement of the knot clamp more stable.

[0083] In this embodiment, the drive execution module further includes a sensor 470, which is disposed at the bottom of the support module 100, located at the edge position of the first closure clip 200 opposite to the closing channel and / or the edge position of the second closure clip 300 opposite to the closing channel.

[0084] Specifically, in the initial state, the closing channel is open, and the first and second clamps 200 and 300 are in an open state. The first and second clamps 200 and 300 are concealed within the receiving cavity away from the closing channel, thus not obstructing the disposal of medical waste. When the sensor 470 detects that the first clamp 200 or the second clamp 300 is open to a preset position, the drive motor 430 stops. When the sensor 470 detects that the first clamp 200 or the second clamp 300 is closed to a preset position, the drive motor 430 stops.

[0085] Please see Figure 1 The support module 100 includes a support frame 110, the trash can is located below the support frame 110, and a mounting frame 120 is located on the support frame 110. The mounting frame 120 has the closing channel and a receiving cavity communicating with the closing channel. A sealing cover 130 is hinged to the top of the mounting frame 120 and is used to open or close the closing channel.

[0086] Specifically, the trash can is installed into the support frame 110, so that the opening of the trash can is sealed to the bottom of the closing channel. The sealing cover 130 is opened, and the trash bag is inserted into the trash can through the closing channel. The opening edge of the trash bag is fitted onto the top of the mounting frame 120, and the sealing cover 130 is closed.

[0087] In this implementation, the drive execution module and the elastic guide module are housed within the accommodating cavity to prevent them from colliding with other objects and to improve their service life.

[0088] In this embodiment, the support module 100 further includes a shielding ring, which is fixed to the inner side of the top wall of the support frame and is a certain distance away from the two clamps. The second base 810 is fixed to the lower end of the shielding ring.

[0089] In this embodiment, the support module 100 further includes a sealing cover 130 plate, which is disposed on the top of the mounting frame 120 and has a clearance opening communicating with the closing channel. The sealing cover 130 plate is provided at the top of the mounting space to ensure the sealing performance between the sealing cover 130 and the accommodating cavity when the sealing cover 130 is closed.

[0090] In summary, the automatic medical waste bag closing device of this embodiment includes a support module 100, two tying clips, a drive module 400, a first fixing component, a movable hook, and a first tying elastic band 700. The two tying clips can move towards each other to close the closing channel, and the first tying elastic band 700 is sleeved on the first fixing component 500 and the movable hook and is in a taut state. By controlling the two sealing clamps to move towards each other, the two clamps clamp the garbage bag, realizing the automatic sealing function of the garbage bag. This avoids the risk of gas leakage and infection caused by manual knotting of the garbage bag. By applying a pre-tightening force to the first sealing elastic band 700, and by the two sealing clamps contacting the first movable hook 600 during the movement, the first sealing elastic band 700 is released, releasing the pre-tightening force. This allows the first sealing elastic band 700 to limit the garbage bag, preventing the garbage bag from being squeezed into the gaps of the sealing clamps and improving the stability of the automatic sealing.

[0091] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0092] It should be noted that this invention uses an automatic medical waste bag sealing device as an example to introduce the specific structure and working principle of the invention, but the application of this embodiment is not limited to the automatic medical waste bag sealing device, and can also be applied to the production and use of other similar workpieces.

[0093] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

[0094] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic sealing device for medical waste bags, characterized in that, include: The support module is provided with a closing channel, one end of which is used to connect with the trash can, and the other end is used to fit a trash bag. Two clamps are provided on the support module. The two clamps are respectively located on both sides of the closing channel and can move towards each other to close the closing channel. A drive module, mounted on the support module, is used to drive the tying clamp; Two first fixed components and two first movable hooks are arranged alternately in a ring around the closing channel to form a quadrilateral frame; and the line connecting the two first movable hooks is perpendicular to the moving direction of the tying clip. The first elastic band is fitted onto the quadrilateral frame and is taut. Wherein, the first elastic band is hung on the first movable hook, and when the two elastic bands move toward each other, they come into contact with the first movable hook, causing the first elastic band to loosen; The support module has a receiving cavity that communicates with the closing channel. The two tying clips, the drive module, the first fixing component, the first movable hook, and the first tying elastic band are all located in the receiving cavity. The automatic sealing device for medical waste bags also includes: Two second fixed components and two second movable hooks are disposed within the receiving cavity and located above the tying clip. The second fixed components and the second movable hooks are arranged alternately in a ring around the closing channel to form a quadrilateral frame. Furthermore, the line connecting the two second movable hooks is perpendicular to the moving direction of the tying clip. The second elastic band is fitted onto the quadrilateral frame and is taut. The first active hook includes: A first base is fixed to the bottom wall of the accommodating cavity, and a limiting groove is provided on the upper part of the first base; The first rotating shaft is disposed within the limiting groove; The first pull rod has an end that is rotatably connected to the first rotating shaft. The front end has a first groove with an upward opening. The first groove is connected to the first elastic band. The upper surface of the middle part has a first protrusion. When the two elastic bands move towards each other, the lower surface of one of the elastic bands contacts the first protrusion. The first elastic element has one end connected to the bottom wall of the accommodating cavity and the other end connected to the lower surface of the middle part of the first pull rod; The second active hook includes: The second base is fixed to the top wall of the accommodating cavity; The second rotation axis is provided on the second base; The second pull rod is rotatably connected to the second rotating shaft in the middle. The front end is provided with a second groove with an upward opening. The second groove is connected to the second tying elastic band. The lower surface of the end is provided with a second protrusion. When the two tying clips move towards each other, the second protrusion on the upper surface of the other tying clip abuts against it. The fixing block is connected to the first base; The second elastic element has one end connected to the upper surface of the end of the second pull rod and the other end connected to the lower surface of the fixed block.

2. The automatic sealing device for medical waste bags according to claim 1, characterized in that, The two said clamps include: The first tying clip has a semi-circular arc opening on one side facing the closing channel, and a first pressing part is provided on the lower surface of the first tying clip, which is used to abut against the first protrusion. The second tying clip is located above the first tying clip. The second tying clip has a semi-circular opening on one side facing the closing channel. The upper surface of the second tying clip has a second pressing part, which is used to abut against the second protrusion.

3. The automatic sealing device for medical waste bags according to claim 2, characterized in that, The driving module includes: Drive wheel; The driven wheel is arranged opposite to the driving wheel; A synchronous belt is installed at both ends on the driving pulley and the driven pulley respectively. The portion of the synchronous belt below the driving pulley and the driven pulley is connected to the first tie clamp, and the portion above the driving pulley and the driven pulley is connected to the second tie clamp, for driving the first tie clamp and the second tie clamp to move synchronously towards each other. A drive motor is located on the bottom wall of the accommodating cavity, and the shaft of the drive motor is connected to the drive wheel.

4. The automatic sealing device for medical waste bags according to claim 3, characterized in that, The driver module also includes: The support rod is arranged parallel to the timing belt; The first connector has one end slidably connected to the support rod and the other end connected to the first buckle clip. The middle part of the first connector is connected to the portion of the timing belt located below the driving pulley and the driven pulley. The second connector has one end slidably connected to the support rod and the other end connected to the second clamp. The middle part of the second connector is connected to the portion of the timing belt located above the driving pulley and the driven pulley.

5. The automatic sealing device for medical waste bags according to claim 2, characterized in that, The drive module also includes a sensor, which is located at the bottom of the support module, at the edge of the first closure clip opposite to the closing channel and / or at the edge of the second closure clip opposite to the closing channel.

6. The automatic sealing device for medical waste bags according to claim 1, characterized in that, The support module includes: The support frame, with the trash can positioned below it. An installation frame is provided on the support frame, and the installation frame is provided with the closing channel and a receiving cavity communicating with the closing channel; A sealing cap, hinged to the top of the mounting frame, is used to open or close the sealing channel.

7. The automatic sealing device for medical waste bags according to claim 6, characterized in that, The support module also includes a sealing cover plate, which is located on the top of the mounting frame and has an opening that communicates with the closing channel.

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