Waste liquid bag weighing structure

Abstract

The utility model provides a waste liquid bag weighing structure, which comprises a base, a weighing sensor arranged on one side of the base and a hook assembly rotationally connected with the base, the weighing sensor is used for being electrically connected with external equipment, and an abutting piece is arranged on the weighing sensor; the hook assembly comprises bearings symmetrically arranged on the two sides of the base, a rotating shaft matched with the two bearings, a connecting block fixedly connected with the rotating shaft and at least one hook inserted into the rotating shaft, an abutting pin is arranged at the end, away from the rotating shaft, of the connecting block and located under the abutting piece, and the abutting piece is connected with the rotating shaft. And a gap is formed between the end part of the abutting pin and the abutting piece. The weight change of the waste liquid bag can be transmitted to external equipment in real time, the weight of the waste liquid bag can be detected in real time, and medical staff do not need to pay attention to the waste liquid collection condition of the waste liquid bag all the time.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and particularly relates to a weighing structure for a waste liquid bag. Background Art

[0002] An autologous blood recovery and separation device is a medical device used in medical processes such as blood transfusion, dialysis, and extracorporeal circulation. During its use, it usually needs to be equipped with disposable blood recovery and separation consumables. The disposable blood recovery and separation consumables can recover and process the extracted blood to ensure safety and hygiene during the treatment process.

[0003] The existing disposable blood recovery and separation consumables include a centrifuge cup, a pipeline, and a waste liquid bag connected to the centrifuge cup through the pipeline. Among them, the waste liquid bag is used to collect waste liquid. During actual use, medical staff often need to constantly monitor the collection amount of waste liquid in the waste liquid bag to prevent the waste liquid from overflowing the waste liquid bag and flowing back into the centrifuge cup through the pipeline to contaminate the blood, which greatly affects the work efficiency of medical staff. Content of the Utility Model

[0004] Based on this, the purpose of the utility model is to provide a weighing structure for a waste liquid bag, aiming to solve the technical problem that in the prior art, the use of the waste liquid bag often requires medical staff to constantly monitor the collection amount of waste liquid in the waste liquid bag to prevent the waste liquid from overflowing the waste liquid bag and flowing back into the centrifuge cup through the pipeline to contaminate the blood, which greatly affects the work efficiency of medical staff.

[0005] The purpose of the utility model is to provide a weighing structure for a waste liquid bag, which includes a base, a weighing sensor arranged on one side of the base, and a hook assembly rotatably connected to the base. The weighing sensor is used for electrically connecting with an external device, and an abutting member is arranged on the weighing sensor;

[0006] The hook assembly includes bearings symmetrically arranged on both sides of the base, a rotating shaft adapted to the two bearings, a connecting block fixedly connected to the rotating shaft, and at least one hook inserted on the rotating shaft. An abutting pin is arranged at one end of the connecting block away from the rotating shaft. The abutting pin is directly below the abutting member, and there is a gap between the end of the abutting pin and the abutting member.

[0007] Compared with the prior art, the beneficial effects of the waste liquid bag weighing structure of the present utility model are as follows: By setting a hook assembly and a weighing sensor, the weight of the waste liquid bag is transmitted to external equipment in real time to achieve real-time detection of the weight of the waste liquid bag. There is no need for medical staff to constantly monitor the waste liquid collection situation of the waste liquid bag, which can effectively avoid the situation where the waste liquid overflows from the waste liquid bag and enters the centrifuge cup to contaminate the blood. Specifically, the weighing sensor is used for electrical connection with external equipment. There is an abutting member on the weighing sensor. The hook assembly includes two bearings, a rotating shaft, a connecting block and at least one hook. One end of the connecting block away from the rotating shaft is provided with an abutting pin. The abutting pin is directly below the abutting member, and there is a gap between the end of the abutting pin and the abutting member. During actual use, the hook is used to hang the waste liquid bag. When the waste liquid capacity in the waste liquid bag changes continuously, the rotating shaft connected to the hook will rotate relative to the base under the action of the bearings, and drive the end of the connecting block provided with the abutting pin to move upward. The abutting pin contacts the abutting member, causing the weighing sensor to receive a squeezing force and transmitting the received squeezing force to the external equipment in real time for reception, thereby realizing real-time detection of the weight of the waste liquid bag.

[0008] In addition, according to the above waste liquid bag weighing structure of the present utility model, the following additional technical features may also be provided:

[0009] Further, the base includes a connecting plate portion, a mounting plate portion provided on one side of the connecting plate portion, and a convex platform portion connected to the mounting plate portion. The connecting plate portion is provided with at least one through hole. Bearing mounting holes are respectively provided on two opposite sides of the mounting plate portion. The bearing mounting holes are adapted to the bearings. The end of the convex platform portion away from the mounting plate portion is fixedly connected with the weighing sensor.

[0010] Further, the mounting plate portion is a U-shaped plate structure. The horizontal part of the U-shaped plate structure is connected with the convex platform portion, and the vertical part of the U-shaped plate structure is provided with the bearing mounting holes.

[0011] Further, the hook includes a plug rod portion and a spherical portion provided at one end of the plug rod portion. The end of the plug rod portion away from the spherical portion passes through the through hole and is inserted into the rotating shaft.

[0012] Further, the diameter of the plug rod portion is smaller than the aperture of the through hole.

[0013] Further, the hook further includes a stop portion. The stop portion is provided on the plug rod portion and is arranged adjacent to the spherical portion.

[0014] Further, the abutting member is a flat head screw, and the flat head screw is screwed to the bottom of the weighing sensor.

[0015] Further, the abutting pin is a round head setscrew, the round head setscrew is screwed to the connecting block, and the round head end of the round head setscrew is used to abut against the flat head screw. Description of the Drawings

[0016] Figure 1 It is a three-dimensional structure diagram of the waste liquid bag weighing structure of the present invention from the first perspective;

[0017] Figure 2 It is a three-dimensional structure diagram of the waste liquid bag weighing structure of the present invention from the second perspective;

[0018] Figure 3 It is a side view of the waste liquid bag weighing structure of the present invention.

[0019] Among them, the above-mentioned drawings include the following reference numerals: 10 - base; 11 - connecting plate part; 12 - mounting plate part; 13 - boss part; 101 - through hole; 20 - weighing sensor; 21 - abutting member; 31 - bearing; 32 - rotating shaft; 33 - hook; 331 - spherical part; 332 - inserting rod part; 333 - stopping part; 34 - connecting block; 35 - abutting pin.

[0020] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. Specific Embodiments

[0021] For the convenience of understanding the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs. The terms used herein in the description of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0024] Please refer to Figures 1 to 3The waste liquid bag weighing structure of the utility model includes a base 10, a weighing sensor 20 disposed on one side of the base 10, and a hook assembly rotatably connected to the base 10. The weighing sensor 20 is used to be electrically connected to an external device (not shown), and the external device is used to receive the signal change fed back by the weighing sensor 20 to achieve real-time detection of the weight change of the waste liquid bag. Further, the weighing sensor 20 is provided with an abutment 21. As a specific example, in this embodiment, the abutment 21 is a flat head screw, which is screwed to the bottom of the weighing sensor 20.

[0025] As an example, the base 10 includes a connecting plate portion 11, a mounting plate portion 12 disposed on one side of the connecting plate portion 11, and a boss portion 13 connected to the mounting plate portion 12. The connecting plate portion 11 is provided with at least one through hole 101. In this embodiment, the connecting plate portion 11 is provided with three through holes 101 evenly spaced along its length direction, and the through holes 101 are used to pass through the hook 33. Two opposite sides of the mounting plate portion 12 are respectively provided with bearing mounting holes, which are adapted to the bearing 31, and one end of the boss portion 13 away from the mounting plate portion 12 is fixedly connected with a weighing sensor 20.

[0026] Furthermore, the mounting plate portion 12 is a U-shaped plate structure, the two vertical portions of the U-shaped plate structure are respectively provided with bearing mounting holes, and one end of the boss portion 13 is connected to the side of the horizontal portion of the U-shaped plate structure away from the vertical portion.

[0027] As an example, the hook assembly includes bearings 31 symmetrically arranged on both sides of the base 10, a rotating shaft 32 adapted to the two bearings 31, a connecting block 34 fixedly connected to the rotating shaft 32, and at least one hook 33 inserted on the rotating shaft 32. An abutment pin 35 is provided at one end of the connecting block 34 away from the rotating shaft 32. The abutment pin 35 is located directly below the abutment member 21, and a gap is provided between the end of the abutment pin 35 and the abutment member 21. Specifically, a bearing 31 is installed in the bearing mounting hole, and the rotating shaft 32 is inserted into the two bearings 31 to realize the rotation connection between the rotating shaft 32 and the base 10. The hook 33 passes through the through hole 101 on the connecting plate portion 11 and is inserted into the rotating shaft 32. In actual use, when no heavy objects such as waste liquid bags are hung on the hook 33, the horizontal parts of the connecting block 34 and the mounting plate portion 12 are parallel to each other, and a gap is provided between the end of the abutment pin 35 and the abutment member 21; when a heavy object is hung on the hook 33, the hook 33 is forced to fall downward, and the rotating shaft 32 connected to the hook 33 will rotate counterclockwise relative to the mounting plate portion 12 under the action of the bearing 31. At this time, the connecting block 34 will also rotate accordingly, and the specific changes that occur are: the end of the connecting block 34 away from the rotating shaft 32, that is, the end provided with the abutment pin 35 will move upward, and the abutment pin 35 will contact the abutment member 21 on the weighing sensor 20, so that the bottom of the weighing sensor 20 is subjected to a squeezing force.

[0028] In this embodiment, the hook assembly includes three hooks 33. Specifically, the hooks 33 are used to hang the waste liquid bag. The hook 33 includes an insertion rod portion 332 and a spherical portion 331 provided at one end of the insertion rod portion 332. The end of the insertion rod portion 332 away from the spherical portion 331 passes through the through hole 101 and is inserted into the rotating shaft 32.

[0029] Furthermore, the hook 33 further includes a stop portion 333. The stop portion 333 is provided on the insertion rod portion 332 and is disposed adjacent to the spherical portion 331. During actual use, the waste liquid bag can be hung in the gap between the stop portion 333 and the spherical portion 331, which can prevent the waste liquid bag from sliding during use.

[0030] Furthermore, the diameter of the insertion rod portion 332 is smaller than the aperture of the through hole 101. When no heavy objects such as waste liquid bags are hung on the hook 33, the insertion rod portion 332 of the hook 33 is located at the central position of the through hole 101, so that the rotating shaft 32 can be driven to rotate during the process of the hook 33 falling due to the hanging of heavy objects.

[0031] Furthermore, the abutting pin 35 is a round head set screw. The round head set screw is screwed with the connecting block 34, and the round head end of the round head set screw is used to abut against the flat head screw. It should be noted that the structures of the abutting member and the abutting pin in the present utility model are not limited to the structures in the above embodiments, and can also be other structures that can achieve the purpose of the present utility model.

[0032] In the actual use process, the working principle of the waste liquid bag weighing structure of the present utility model can be as follows: Hang the waste liquid bag on three hooks 33. Specifically, pass the hanging hole on the waste liquid bag through the spherical part 331 of the hook 33, and make the waste liquid bag located between the spherical part 331 and the stop part 333 of the hook 33 to prevent the waste liquid bag from sliding during use. When the waste liquid volume in the waste liquid bag changes, that is, when the overall weight of the waste liquid bag changes, the hook 33 will drop under the action of the gravity of the waste liquid bag. The rotating shaft 32 connected to the hook 33 will rotate relative to the base 10 under the action of the bearing 31, specifically showing a counterclockwise rotation. During the rotation of the rotating shaft 32, since one end of the connecting block 34 is fixedly arranged on the rotating shaft 32, the connecting block 34 will also rotate synchronously. Specifically, the end of the connecting block 34 provided with the abutting pin 35 will move upward, so that the abutting pin 35 contacts the abutting member 21 on the weighing sensor 20. The bottom of the weighing sensor 20 will receive a squeezing force and feedback the received squeezing force to the external device in real time, thereby realizing the real-time detection of the gravity change of the waste liquid bag. It should be noted that when the gravity value received by the external device exceeds the preset warning value, the external device will send a warning signal to prompt the medical staff to replace the waste liquid bag in time, without the medical staff constantly paying attention to the waste liquid collection situation of the waste liquid bag, thereby effectively avoiding the phenomenon that the waste liquid overflows from the waste liquid bag and enters the centrifuge cup to contaminate the blood.

[0033] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0034] The above embodiments only represent several implementation manners of the present utility model, and their descriptions are relatively specific and detailed, but should not be construed as limiting the scope of the present utility model application. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model application should be subject to the appended claims.

Claims

1. A waste liquid bag weighing structure, characterized in that: It includes a base, a weighing sensor arranged on one side of the base, and a hook assembly rotatably connected to the base, wherein the weighing sensor is used to be electrically connected to an external device, and an abutment member is arranged on the weighing sensor; The hook assembly includes bearings symmetrically arranged on both sides of the base, a rotating shaft adapted to the two bearings, a connecting block fixedly connected to the rotating shaft, and at least one hook inserted on the rotating shaft, an abutment pin is provided at one end of the connecting block away from the rotating shaft, the abutment pin is located directly below the abutment member, and a gap is provided between the end of the abutment pin and the abutment member.

2. The waste liquid bag weighing structure according to claim 1, characterized in that: The base includes a connecting plate portion, a mounting plate portion arranged on one side of the connecting plate portion, and a boss portion connected to the mounting plate portion, the connecting plate portion is provided with at least one through hole, and two opposite sides of the mounting plate portion are respectively provided with bearing mounting holes, the bearing mounting holes are adapted to the bearings, and the weighing sensor is fixedly connected to one end of the boss portion away from the mounting plate portion.

3. The waste liquid bag weighing structure according to claim 2, characterized in that: The mounting plate portion is a U-shaped plate structure, the horizontal portion of the U-shaped plate structure is connected to the boss portion, and the vertical portion of the U-shaped plate structure is provided with the bearing mounting hole.

4. The waste liquid bag weighing structure according to claim 2, characterized in that: The hook comprises an insertion rod portion and a spherical portion arranged at one end of the insertion rod portion, and the end of the insertion rod portion away from the spherical portion passes through the through hole and is inserted into the rotating shaft.

5. The waste liquid bag weighing structure according to claim 4, characterized in that: The diameter of the rod insertion portion is smaller than the aperture of the through hole.

6. The waste liquid bag weighing structure according to claim 4, characterized in that: The hook further comprises a stopper, which is arranged on the inserting rod portion and is disposed adjacent to the spherical portion.

7. The waste liquid bag weighing structure according to claim 1, characterized in that: The abutment member is a flat head screw, and the flat head screw is screwed to the bottom of the weighing sensor.

8. The waste liquid bag weighing structure according to claim 7, characterized in that: The abutment pin is a round head top screw, the round head top screw is threadedly connected to the connection block, and the round head end of the round head top screw is used to abut against the flat head screw.

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