Cut-off adjusting device for infusion tube of infusion apparatus

Abstract

The utility model relates to the technical field of medical instruments, and discloses a cut-off adjusting device for an infusion tube of an infusion apparatus, which comprises a shell, a through hole is formed in the left end of the shell, a threaded hole is formed in the right end of the shell, first openings are formed in the upper sides of the through hole and the threaded hole, a hose is arranged in the middle of the shell, and a second opening is formed in the middle of the hose. Cover plates are arranged on the upper side and the lower side of the shell, inclined sliding grooves are formed in the front side and the rear side of the right end of each cover plate, a first sliding groove is formed in the middle of the right end of each cover plate, and pushing plates are arranged on the opposite sides of the right ends of the cover plates. According to the device, the pushing plate can push the movable rod to move leftwards in the inclined sliding groove, so that the material pressing roller is driven to move leftwards, the infusion tube is extruded, the flow speed of liquid is controlled, the threaded ring is in threaded connection with the threaded hole, and the phenomenon that when the infusion tube is extruded, the adjusting wheel retreats due to the counter-acting force of the infusion tube is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a cut-off adjusting device for an infusion tube of an infusion set. Background Art

[0002] The flow rate adjusting device of an infusion set is generally arranged on the infusion tube. The flow rate adjusting device is provided with an inclined surface on the shell, and the rolling adjusting wheel and the inclined surface cooperate with each other to change the flow diameter of the infusion tube pressed by it, so as to realize the flow rate adjustment of the liquid in the infusion tube.

[0003] After retrieval, an infusion set adjusting device with the publication number CN219835944U includes a regulator main body. A lower cover is arranged at the bottom of the regulator main body. A guide groove is formed on the inner wall of the lower cover. A pressing structure is arranged between the guide grooves. An infusion tube penetrating the lower cover is arranged below the pressing structure. An upper cover is connected above the lower cover. A waist-shaped groove is formed on the upper cover. A driving tooth that can move inside it is connected inside the waist-shaped groove. A first rotating shaft is connected between the lower cover and the upper cover. Two pressing rollers on the pressing structure are used to press the infusion tube, avoiding the problem that the regulator is affected by the force generated by the expansion of the infusion tube itself. Thus, the problem that the adjustment wheel will move in the opposite direction after being stressed due to the outward force generated by the infusion tube itself, resulting in incomplete pressing of the infusion tube, and thus the problem of inaccurate adjustment cannot be solved.

[0004] Based on the above patent, the infusion set regulator mentioned in its background art presses the infusion tube through an adjusting wheel. However, since the infusion tube itself will also generate an outward force, the adjusting wheel will move in the opposite direction after being stressed, resulting in the problem that the infusion tube cannot be completely pressed. In view of this technical problem, the present application proposes a cut-off adjusting device for an infusion tube of an infusion set. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art, and to propose a cut-off adjusting device for an infusion tube of an infusion set, which can effectively avoid the occurrence of the phenomenon that the adjusting wheel retreats due to the reaction force of the infusion tube when the infusion tube is squeezed.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A cut-off adjusting device for an infusion tube of an infusion set, comprising a housing. A through hole is provided at the left end of the housing, and a threaded hole is provided at the right end of the housing. First openings are provided on the upper sides of the through hole and the threaded hole. A flexible tube is arranged in the middle of the housing. Cover plates are arranged on both the upper and lower sides of the housing. Oblique sliding grooves are provided on the front and rear sides at the right end of the cover plate. A first sliding groove is provided in the middle at the right end of the cover plate. Pushing plates are arranged on the opposite sides at the right end of the cover plate. The pushing plates are connected to the housing through pushing components. Connecting grooves are provided in the middle on the opposite sides of the pushing plates. Second sliding grooves are provided at the front and rear ends of the pushing plates. Moving rods are jointly and movably connected inside the second sliding grooves at the same end. The two ends of the moving rod are respectively movably connected inside the oblique sliding grooves. Pressing rollers are rotatably connected to the middle parts of the outer walls of the moving rods.

[0008] Through the above technical solution, the pushing plates provided can push the moving rods to move leftward inside the oblique sliding grooves, thereby driving the pressing rollers to move leftward. Through the oblique "eight" design of the oblique sliding grooves, when the moving rods move leftward, the two pressing rollers can be driven to approach each other, thereby squeezing the flexible tube to control the flow rate of the liquid in the flexible tube. When moving to the leftmost end of the oblique sliding grooves, the flow of the liquid in the flexible tube can be cut off. Through the design of the through hole, the threaded hole and the first opening, the device can be disassembled and installed.

[0009] Further, the pushing component includes a threaded ring inside the threaded hole. A rotating ring is fixedly connected to the outer wall at the right end of the threaded ring. A movable plate is rotatably connected to the outer wall at the left end of the threaded ring. Second openings are provided on the front sides of the threaded ring, the rotating ring and the movable plate. Connecting plates are fixedly connected to the left sides of the upper and lower ends of the movable plate. Hexagon socket head cap screws are respectively arranged inside the connecting plates.

[0010] Through the above technical solution, by manually rotating the rotating ring to drive the threaded ring to rotate, the movable plate is pushed to move leftward through the cooperation of the threaded ring and the threaded hole, and then the pushing plate is pushed to move leftward through the movable plate, thereby controlling the pressing rollers to squeeze the flexible tube and controlling the liquid flow rate. The threaded ring and the threaded hole are threadedly connected with a large frictional force. The reaction force of the flexible tube acting on the pressing rollers is not sufficient to push the movable plate to move rightward through the pressing rollers and the moving rods, thereby avoiding the problem that the traditional adjusting device is easily affected by the reaction force and the adjusting wheel is likely to move, which affects the adjusting effect.

[0011] Further, female fasteners are fixedly connected to both the front and rear sides of the housing.

[0012] Through the above technical solution, it is used to fix the cover plate.

[0013] Further, male fasteners are fixedly connected to both the front and rear sides of the cover plate. The opposite ends of the male fasteners are respectively embedded inside the female fasteners.

[0014] Through the above technical solution, by matching the set sub-button and the mother button, the cover plate can be fixed on the upper and lower sides of the housing, and at the same time, it is convenient to disassemble.

[0015] Further, the outer wall of the threaded ring is threadedly connected to the inside of the threaded hole;

[0016] Through the above technical solution, when the threaded ring is rotated, the threaded ring can drive the movable plate to move leftward.

[0017] Further, the upper and lower ends of the movable plate are respectively slidably connected to the inside of the first chute;

[0018] Through the above technical solution, the first chute is used to limit the movable plate to prevent the movable plate from rotating.

[0019] Further, the outer wall of the connecting plate is closely fitted with the inner wall of the connecting groove, and the opposite ends of the socket head cap screws are respectively threadedly connected to the inside of the pushing plate;

[0020] Through the above technical solution, by setting the socket head cap screws, the connecting plate can be fixed inside the connecting groove, thereby installing the pushing plate on the movable plate.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, by rotating the threaded ring, the pushing plate can be pushed leftward by the movable plate, thereby driving the pressing roller to squeeze the hose to adjust the flow rate of the liquid. Due to the threaded connection between the threaded ring and the threaded hole, there is a large frictional force, and the reaction force of the hose is not sufficient to push the movable plate rightward through the pressing roller and the movable rod, thus avoiding the problem that the traditional adjusting device is affected by the reaction force and is prone to the movement of the adjusting wheel, which affects the adjusting effect.

[0023] 2. In the utility model, by matching the set sub-button and the mother button, the cover plate can be fixed on the upper and lower sides of the housing, and at the same time, it is convenient to disassemble. By setting the first opening and the second opening, it is convenient to install the hose in the middle of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is an overall schematic diagram of a cut-off adjusting device for an infusion tube of an infusion set proposed by the utility model;

[0025] Figure 2 is a schematic diagram of a hose of a cut-off adjusting device for an infusion tube of an infusion set proposed by the utility model;

[0026] Figure 3 is a schematic diagram of a mother button of a cut-off adjusting device for an infusion tube of an infusion set proposed by the utility model;

[0027] Figure 4 Schematic diagram of the push plate of a cut-off adjustment device for the infusion tube of an infusion set proposed by the present utility model;

[0028] Figure 5 Schematic diagram of the cover plate of a cut-off adjustment device for the infusion tube of an infusion set proposed by the present utility model;

[0029] Figure 6 Schematic diagram of the movable plate of a cut-off adjustment device for the infusion tube of an infusion set proposed by the present utility model.

[0030] Legend description:

[0031] 1. Outer shell; 2. Through hole; 3. Threaded hole; 4. First opening; 5. Hose; 6. Cover plate; 7. Inclined chute; 8. First chute; 9. Push plate; 10. Connecting groove; 11. Second chute; 12. Movable rod; 13. Pressure roller; 14. Threaded ring; 15. Rotating ring; 16. Movable plate; 17. Second opening; 18. Connecting plate; 19. Allen bolt; 20. Sub-button; 21. Mother button. Specific implementation manner

[0032] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0033] Referring to Figure 1-6 , an embodiment provided by the present utility model: A cut-off adjustment device for the infusion tube of an infusion set includes an outer shell 1. A through hole 2 is opened at the left end of the outer shell 1, a threaded hole 3 is opened at the right end of the outer shell 1, first openings 4 are opened on the upper sides of the through hole 2 and the threaded hole 3, a hose 5 is arranged in the middle of the outer shell 1, cover plates 6 are arranged on both the upper and lower sides of the outer shell 1, inclined chutes 7 are opened on the front and rear sides of the right end of the cover plate 6, a first chute 8 is opened in the middle of the right end of the cover plate 6, push plates 9 are arranged on the opposite sides of the right end of the cover plate 6, connecting grooves 10 are opened in the middle of the opposite sides of the push plates 9, second chutes 11 are opened at the front and rear ends of the push plates 9, movable rods 12 are jointly and movably connected inside the second chutes 11 at the same end, the two ends of the movable rods 12 are respectively movably connected inside the inclined chutes 7, pressure rollers 13 are rotatably connected to the middle parts of the outer walls of the movable rods 12, mother buttons 21 are fixedly connected to both the front and rear sides of the outer shell 1, sub-buttons 20 are fixedly connected to both the front and rear sides of the cover plate 6, and the opposite ends of the sub-buttons 20 are respectively embedded inside the mother buttons 21;

[0034] The set push plate 9 can push the movable rod 12 to move leftward inside the inclined chute 7, thereby driving the pressure roller 13 to move leftward. Through the inclined "eight" design of the inclined chute 7, when the movable rod 12 moves leftward, it can drive the two pressure rollers 13 to approach each other, thereby squeezing the hose 5 and controlling the flow rate of the liquid in the hose 5. When moving to the leftmost end of the inclined chute 7, the flow of the liquid in the hose 5 can be cut off. Through the designs of the through hole 2, the threaded hole 3, and the first opening 4, the device can be disassembled and installed.

[0035] A threaded ring 14 is threadedly connected inside the threaded hole 3. The outer wall of the right end of the threaded ring 14 is fixedly connected with a rotating ring 15. The outer wall of the left end of the threaded ring 14 is rotatably connected with a movable plate 16. The upper and lower ends of the movable plate 16 are respectively slidably connected inside the first chute 8. Second openings 17 are provided on the front sides of the threaded ring 14, the rotating ring 15, and the movable plate 16. Connecting plates 18 are fixedly connected to the left sides of the upper and lower ends of the movable plate 16. The outer walls of the connecting plates 18 are in close fit with the inner walls of the connecting grooves 10. Socket head cap screws 19 are respectively passed through the inside of the connecting plates 18. The opposite ends of the socket head cap screws 19 are respectively threadedly connected inside the push plate 9.

[0036] The rotating ring 15 drives the threaded ring 14 to rotate. Through the cooperation of the threaded ring 14 and the threaded hole 3, the movable plate 16 is pushed to move leftward, thereby pushing the push plate 9 to move leftward. Through the push plate 9, the movable rod 12 and the pressure roller 13 are driven to move leftward to squeeze the hose 5. There is a large frictional force between the threaded ring 14 and the threaded hole 3. The reaction force of the hose 5 acting on the pressure roller 13 is not sufficient to push the movable plate 16 to move rightward through the pressure roller 13 and the movable rod 12, thus avoiding the traditional adjusting device being affected by the reaction force and easily causing the adjusting wheel to move, which affects the adjusting effect.

[0037] Working principle: When installing the device outside the hose 5, rotate the threaded ring 14, the rotating ring 15, and the movable plate 16 so that the second opening 17 is at the upper side. Subsequently, embed the hose 5 between the housing 1 and the threaded ring 14 through the first opening 4 and the second opening 17. Then rotate the movable plate 16 so that the connecting plates 18 are located on the upper and lower sides. Subsequently, cooperate the male buckle 20 and the female buckle 21 to install a cover plate 6 on the lower side of the housing 1 first. Then install the movable rod 12 and the pressure roller 13. After that, install the upper cover plate 6. Finally, install the push plate 9 on the movable plate 16 through the set socket head cap screws 19 to complete the assembly of the device. When adjusting, drive the threaded ring 14 to rotate through the rotating ring 15. Through the cooperation of the threaded ring 14 and the threaded hole 3, the movable plate 16 is pushed to move leftward, thereby pushing the push plate 9 to move leftward. Through the push plate 9, the movable rod 12 and the pressure roller 13 are driven to move leftward to squeeze the hose 5.

[0038] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A cut-off adjustment device for an infusion tube of an infusion set, comprising a housing (1), characterized in that: A through hole (2) is provided at the left end of the outer shell (1), a threaded hole (3) is provided at the right end of the outer shell (1), first openings (4) are provided on the upper sides of the through hole (2) and the threaded hole (3), a hose (5) is arranged in the middle of the outer shell (1), cover plates (6) are arranged on both the upper and lower sides of the outer shell (1), inclined sliding grooves (7) are provided on the front and rear sides of the right end of the cover plate (6), a first sliding groove (8) is provided in the middle of the right end of the cover plate (6), push plates (9) are arranged on the opposite sides of the right end of the cover plate (6), the push plates (9) are connected to the outer shell (1) through a pushing assembly, connection grooves (10) are provided in the middle of the opposite sides of the push plates (9), second sliding grooves (11) are provided at the front and rear ends of the push plates (9), movable rods (12) are movably connected together inside the second sliding grooves (11) at the same end, two ends of each movable rod (12) are respectively movably connected inside the inclined sliding grooves (7), and pressing rollers (13) are rotatably connected to the middle parts of the outer walls of the movable rods (12).

2. The cut-off adjustment device for the infusion tube of an infusion set according to claim 1, characterized in that: The pushing assembly includes a threaded ring (14) inside the threaded hole (3), a rotating ring (15) is fixedly connected to the outer wall of the right end of the threaded ring (14), a movable plate (16) is rotatably connected to the outer wall of the left end of the threaded ring (14), second openings (17) are provided on the front sides of the threaded ring (14), the rotating ring (15) and the movable plate (16), connecting plates (18) are fixedly connected to the left sides of the upper and lower ends of the movable plate (16), and socket head cap screws (19) are respectively arranged inside the connecting plates (18).

3. The cut-off adjustment device for the infusion tube of an infusion set according to claim 1, characterized in that: Female fasteners (21) are fixedly connected to both the front and rear sides of the outer shell (1).

4. The cut-off adjustment device for an infusion tube of an infusion set according to claim 1, characterized in that: Male fasteners (20) are fixedly connected to both the front and rear sides of the cover plate (6), and the opposite ends of the male fasteners (20) are respectively embedded inside the female fasteners (21).

5. The cut-off adjustment device for an infusion tube of an infusion set according to claim 2, characterized in that: The outer wall of the threaded ring (14) is threadedly connected inside the threaded hole (3).

6. The cut-off adjustment device for the infusion tube of an infusion set according to claim 2, characterized in that: The upper and lower ends of the movable plate (16) are respectively slidably connected inside the first sliding groove (8).

7. The cut-off adjusting device for an infusion tube of an infusion set according to claim 2, characterized in that: The outer walls of the connecting plates (18) are in close fit with the inner walls of the connection grooves (10), and the opposite ends of the socket head cap screws (19) are respectively threadedly connected inside the push plates (9).

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