Medical PVC pipe cutting device

Abstract

The utility model discloses a medical PVC (polyvinyl chloride) tube cutting device, which relates to the technical field of medical instrument processing, and comprises a bottom plate, two first driving cylinders are arranged on the bottom plate in parallel, and the output ends of the two first driving cylinders are respectively connected with a clamping jaw; a supporting plate is arranged on the opposite face, located on the clamping jaw, of the bottom plate, a clamping block is arranged on the side, close to the clamping jaw, of the supporting plate, a U-shaped clamping opening is formed in the clamping block in the acting direction perpendicular to the first driving cylinder, clamping fingers are arranged on the side, located on the U-shaped clamping opening, of the clamping block in parallel, and the clamping jaw is located between the clamping fingers. According to the PVC hose cutting device, the two ends of a plurality of PVC hoses can be clamped and fixed through the clamping jaws and the clamping blocks, meanwhile, the PVC hoses are cut in cooperation with the cutters, the PVC hose cutting efficiency is improved, the quality of cut ports is guaranteed, and the PVC hose cutting device is suitable for popularization and application. And the use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment processing, in particular to a medical PVC pipe cutting device. Background Art

[0002] PVC hose is a commonly used material in the medical field, and is mainly used to connect to medical equipment for breathing or drainage.

[0003] The existing utility model patent with announcement number CN 219563267 U and announcement date 2023.08.22 discloses a medical PVC pipe cutting machine, including a frame and a cutting device, wherein the cutting device is arranged on the frame, and a plurality of material storage rollers are arranged at one end of the cutting device, and the material storage rollers are rotatably connected to the frame; the cutting device includes a housing, a material dividing plate is fixedly arranged on the housing, a first material dividing roller is arranged on one side of the material dividing plate, and the first material dividing roller is rotatably connected to the housing, a feeding device is arranged on the other side of the material dividing plate, and a cutting device is arranged on the side of the feeding device away from the material dividing plate;

[0004] The above patent can cut multiple pipes at the same time, which improves the cutting efficiency;

[0005] However, this patent also has an obvious problem: the cutting machine occupies a large area as a whole and can only perform large-scale cutting operations in designated places. However, according to actual production needs, when workers assemble medical devices in a workshop, they need to cut PVC pipes according to the actual conditions of the assembly site. Then, the above-mentioned cutting machine obviously cannot meet the actual needs. The cutting machine cannot be flexibly moved and used at the assembly site. In addition, if the PVC pipe is cut by manual cutting on site, there will be many uncontrollable factors, which will lead to uneven cross-section of the cut and cause poor connection.

[0006] Therefore, there is an urgent need for a medical PVC pipe cutting device that can be flexibly moved and used at the assembly site and can ensure cutting quality. Utility Model Content

[0007] In view of the above technical problems, the utility model provides a medical PVC tube cutting device, which is used to solve the problem that the existing PVC cutting machine occupies a large area and cannot be flexibly moved and used according to actual working conditions at the assembly site.

[0008] The above technical objectives of the utility model are achieved through the following technical solutions:

[0009] A medical PVC tube cutting device comprises a chassis, wherein a plurality of universal wheels are arranged in a rectangular bottom of the chassis, a mounting plate is arranged on the other side of the chassis, two rotating columns are arranged side by side from top to bottom at one end of the mounting plate, and driving arms are rotatably arranged on the two rotating columns respectively;

[0010] A feed inlet is provided at one end of the mounting plate away from the rotating column, and a driving gear and a driven gear are meshed on both sides of the mounting plate located at the feed inlet, the driving gear is equipped with a driving motor, a driving column is vertically fixed at the eccentric position of the driving gear and the driven gear, a driving long hole is provided at a position of the driving arm close to the driving column, and the driving column is located in the driving long hole;

[0011] The mounting plate is provided with a slide seat at the upper and lower ends of the feed port, respectively. A slider is slidably arranged in the slider. The opposite ends of the two sliders are provided with a first cutter and a second cutter, respectively. A linkage column is vertically arranged on the slider. A linkage long hole is provided at a position of the driving arm close to the linkage column, and the linkage column is located in the linkage long hole.

[0012] A material support frame is provided at one end of the chassis away from the mounting plate, and the material support frame is used to set up the material tray. A braking mechanism is provided at the position of the chassis located at the material support frame.

[0013] Furthermore, a material guiding seat is provided in the material inlet, and at least one material guiding hole is provided on the material guiding seat.

[0014] Furthermore, the braking mechanism includes an articulated seat and a support plate, an arc-shaped brake plate is hinged on the articulated seat, a rubber friction pad is provided on the side of the arc-shaped brake plate close to the support frame, a telescopic component is hinged between the support plate and the arc-shaped brake plate, and an elastic part is mounted on the telescopic component.

[0015] Furthermore, a mounting frame is provided on the chassis, a battery is provided in the mounting frame, and the battery is electrically connected to the driving motor.

[0016] Furthermore, a length measuring device is provided on the chassis at the center line position of the material guiding hole.

[0017] Furthermore, the first cutter and the second cutter are staggered.

[0018] Furthermore, a first blade is formed at one end of the first cutter, a second blade is formed at one end of the second cutter, and the first blade and the second blade are formed toward a side away from each other.

[0019] Furthermore, the chassis is located at one end of the supporting frame and is rectangularly provided with a plurality of columns, and one end of the plurality of columns away from the chassis is provided with a storage platform, and the storage platform is provided with a handle.

[0020] Furthermore, there are two material guiding holes, and the diameters of the two material guiding holes are different.

[0021] In summary, the beneficial technical effects of the utility model are:

[0022] (1) The universal wheels at the bottom of the chassis can enable the entire cutting device to move flexibly. At the same time, the driving motor drives the mutually meshing driving gear and the driven gear to link the respectively connected sliders to move toward each other on the slide seat. The slider further uses the first cutter and the second cutter to cut the PVC pipe located in the material guide hole. While achieving the flexible movement of the entire cutting device, the overall volume is greatly reduced, which fully meets the needs of the assembly site.

[0023] (2) The guide holes of different diameters opened on the guide seat can meet the needs of cutting PVC pipes of different diameters, thereby widening the cutting range of the entire cutting device. At the same time, the guide holes improve the directionality of the PVC pipe during cutting, ensuring that the cross-section after cutting is neat, which is conducive to connecting the pipe.

[0024] (3) The elastic member is used to provide a forward elastic thrust to the arc brake plate with the help of the support plate, so that the arc brake plate can generate dynamic friction on the material tray on the support frame, thereby preventing the material tray from rotating freely on the support frame when cutting the pipe, resulting in excessive entanglement and knotting of PVC pipes.

[0025] (4) The battery can be used to provide power for the drive motor, eliminating the need for additional connection to an external power source at the assembly site, effectively reducing the number of cables at the assembly site and keeping the site clean.

[0026] (5) The length measuring device is used instead of manual measurement to effectively ensure the accuracy of the cutting length.

[0027] (6) The use of the column and the storage table can provide a certain degree of protection for the support frame on the chassis. At the same time, the storage table can be used to place other tools during assembly, thereby increasing the usability of the entire cutting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0029] Figure 2 It is a structural schematic diagram of the utility model from another angle;

[0030] Figure 3 Schematic diagram of the cooperation between the first cutter and the second cutter;

[0031] Figure 4 It is a structural schematic diagram of the material guide seat;

[0032] Figure 5 yes Figure 1 A magnified schematic diagram of part A;

[0033] Figure 6 yes Figure 2 An enlarged schematic diagram of part B.

[0034] 1. Chassis; 2. Universal wheel; 3. Material support frame; 4. Mounting plate; 5. Rotating column; 6. Driving arm; 7. Driving long hole; 8. Linkage long hole; 9. Driving gear; 10. Driven gear; 11. Driving motor; 12. Driving column; 13. Linkage column; 14. Feed inlet; 15. Material guide seat; 16. Material guide hole; 17. Sliding seat; 18. Sliding block; 19. First cutter; 20. Second cutter; 21. First blade; 22. Second blade; 23. Wedge; 24. Length measuring device; 25. Articulated seat; 26. Arc brake plate; 27. Support plate; 28. Telescopic assembly; 29. ​​Elastic member; 30. Rubber friction pad; 31. Battery; 32. Column; 33. Storage table; 34. Handle; 35. Material tray; 36. Limit baffle; 37. PVC pipe. DETAILED DESCRIPTION

[0035] The present invention will be described clearly and completely below in conjunction with the embodiments.

[0036] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0037] In the description of the embodiments, unless otherwise clearly specified and limited, the terms "disposed", "connected" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or it can be connected through an intermediate medium, or it can be a communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0038] See attached Figure 1-6, a medical PVC tube cutting device is shown, comprising a chassis 1, and four universal wheels 2 are arranged in a rectangular shape at the bottom of the chassis 1. The four universal wheels 2 can enable the entire cutting device to be flexibly moved and can flexibly cooperate with the assembly work on site. A support frame 3 is provided at one end of the other side of the chassis 1, and a material shaft is provided on the support frame 3. When in use, a material tray 35 of a PVC tube 37 is mounted on the material shaft, and the entire material tray 35 is erected through the support frame 3 to complete the purpose of discharging the material. A mounting plate 4 is vertically fixed at the other end of the chassis 1, and two rotating columns 5 are arranged side by side from top to bottom at one end of the mounting plate 4. A driving arm 6 is rotatably provided on each rotating column 5, and driving arms 6 are sequentially provided with driving arms 6 from right to left along the length direction. The long hole 7 and the linkage long hole 7, at the same time, the end of the mounting plate 4 away from the rotating column 5 is provided with a feed port 14, the feed port 14 is used to pass the PVC pipe 37 from the material tray 35, the mounting plate 4 is located on both sides of the feed port 14 and is close to the two driving long holes 7. The position is meshed with a driving gear 9 and a driven gear 10, and the driving gear 9 is located on the other side of the mounting plate 4. A driving motor 11 is provided, and a driving column 12 is vertically arranged at the opposite end of the driving gear 9 and the driven gear 10 at their respective eccentric positions. The two driving columns 12 are respectively placed in the driving long holes 7 of the corresponding driving arms 6. It should be noted that the spacing between the driving gear 9 and the driven gear 10 is greater than the spacing between the two rotating columns 5, so that the two driving arms 6 are A V-shaped scissors state is formed. The driving motor 11 drives the two driving arms 6 to make circular arc motions toward each other through the driving gear 9 and the driven gear 10. At the same time, a slide 17 is fixedly provided at the upper and lower ends of the feed port 14. A slider 18 is vertically slidably provided in each slide 17. The ends of the two sliders 18 close to each other are respectively provided with a first cutter 19 and a second cutter 20. At the same time, a linkage column 13 is vertically provided at the position of the linkage long hole 8 on each slide 17. The linkage column 13 is placed in the linkage long hole 8. In this way, when the two driving arms 6 are driven to make circular arc motions toward each other through the driving motor 11, the driving arms 6 further act on the two sliders 18 through the linkage column 13 to slide up and down in the slide 17. When in use, the PVC pipe 37 on the material tray 35 is placed between the first cutter 19 and the second cutter 20 through the material inlet 14 according to the actual assembly requirements on site, and the first cutter 19 and the second cutter 20 are used to cut the PVC pipe 37 by driving the two sliders 18 linked by the driving motor 11. It can be seen that the universal wheel 2 at the bottom of the chassis 1 realizes the flexible movement of the entire cutting device at the assembly site. Compared with the existing cutting machine, it occupies a smaller area and can better meet the assembly requirements. The driving arm 6 is driven by the driving motor 11 to use the first cutter 19 and the second cutter 20 to complete the cutting of the PVC pipe 37, which not only realizes the cutting, but also ensures the neatness of the cross section of the PVC pipe 37, thereby improving the quality of the pipe connection;

[0039] As a medical PVC pipe cutting device, in order to prevent the first cutter 19 and the second cutter 20 from colliding during cutting, the first cutter 19 and the second cutter 20 are staggered, and the working principle is the same as that of scissors. At the same time, in order to improve the cutting quality and efficiency, the first cutter 19 and the second cutter 20 are respectively provided with a first blade 21 and a second blade 22 at the ends close to each other, and the first blade 21 and the second blade 22 are opened toward a side away from each other;

[0040] As a medical PVC tube cutting device, in order to improve the directionality of the PVC tube 37 during cutting and prevent oblique cutting, a material guide seat 15 is provided in the feed port 14, and a wedge opening 23 is provided at the joint of the material guide seat 15 and the feed port 14, and a wedge block is provided in the wedge opening 23. At the same time, a plurality of material guide holes 16 with different diameters are provided through the material guide seat 15, so that the directionality of the PVC tube 37 can be improved and the cutting of various tube diameters can be satisfied.

[0041] As a medical PVC pipe cutting device, in order to keep the site clean and tidy and reduce the dependence of the cutting device on an external power source, a mounting frame is provided on the chassis 1, and a battery 31 is provided in the mounting frame. The battery 31 is electrically connected to the drive motor 11, so that the drive motor 11 can be powered by the battery 31 without pulling additional cables on site;

[0042] As a medical PVC tube cutting device, in order to improve the accuracy of cutting length, a length measuring device 24 is provided through a bracket at the center line of the guide hole 16 of the chassis 1 and at the intersection of the first blade 21 and the second blade 22. The length measuring device 24 is specifically a laser length measuring instrument. When the PVC tube 37 is passed through the guide hole 16 and pulled between the first cutter 19 and the second cutter 20, the staff can observe the length passing the detection end on the display screen of the length measuring instrument.

[0043] As a medical PVC tube cutting device, in order to prevent the material tray 35 from rotating freely when the PVC tube 37 is pulled, resulting in excessive material discharge, a brake mechanism is provided at the position of the chassis 1 at the support frame 3, and the brake mechanism includes a hinge seat 25 and a support plate 27, wherein an arc-shaped brake plate 26 is hinged on the hinge seat 25, and a rubber friction pad 30 is provided on the side of the arc-shaped brake disk close to the material tray 35, and two telescopic components 28 are hinged between the support plate 27 and the arc-shaped brake plate 26, wherein the telescopic component 28 is composed of a pipe sleeve and a pipe member telescopic in the pipe sleeve, and an elastic member 29 is sleeved on the telescopic component 28, and the elastic member 29 is specifically a spring. When in use, the material tray 35 is installed on the support frame 3, and the elastic member 29 provides a forward elastic thrust to the arc-shaped brake plate 26 and acts on the material tray 35 through the friction pad, so that a dynamic friction force is applied to the material tray 35 to prevent free rotation, and when the PVC tube 37 is pulled, the material tray 35 rotates, and stops rotating under the action of friction when cutting or not pulling;

[0044] As a medical PVC pipe cutting device, in order to increase the use function of the entire cutting device to better meet the working conditions on site, the chassis 1 is vertically provided with four columns 32 at the position of the support frame 3, and a storage table 33 is provided at one end of the four columns 32. Other tools can be temporarily placed on the storage table 33. In addition, a handle 34 for moving the entire cutting device is also provided on the storage table 33;

[0045] As a medical PVC tube cutting device, in order to prevent the material tray 35 from falling off the support frame 3 when rotating, a limit baffle 36 is threadedly connected to the material shaft.

[0046] When in use, first, the material tray 35 of the entire PVC tube 37 is mounted on the material shaft of the support frame 3 and the upper limit baffle 36 is installed. Then the staff pulls one end of the PVC tube 37 and passes it through the material guide hole 16 corresponding to the material guide seat 15 to between the first cutter 19 and the second cutter 20, and then continues to pull the PVC tube 37 to move according to the actual required length. During the movement, the length passed is measured and displayed in real time by the length measuring device 24. When the required length is reached, the pulling is stopped. At this time, the material tray 35 stops discharging under the action of the braking mechanism, and then the drive motor 11 is started. The first cutter 19 and the second cutter 20 are linked to slide toward each other along the slide seat 17 by two drive arms 6 through the drive gear 9 and the driven gear 10, and the first blade 21 and the second blade 22 are used to complete the final cutting.

[0047] The above description is only a preferred specific implementation method of the present invention, and does not limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A medical PVC tube cutting device, characterized in that: It comprises a chassis (1), the bottom of the chassis (1) is rectangularly provided with a plurality of universal wheels (2), the other side of the chassis (1) is provided with a mounting plate (4), one end of the mounting plate (4) is provided with two rotating columns (5) arranged side by side from top to bottom, and the two rotating columns (5) are respectively provided with driving arms (6) for rotation; The mounting plate (4) is provided with a feed inlet (14) at one end away from the rotating column (5), and a driving gear (9) and a driven gear (10) are meshed and provided on both sides of the mounting plate (4) located at the feed inlet (14), and the driving gear (9) is provided with a driving motor (11), and a driving column (12) is vertically fixed at an eccentric position of the driving gear (9) and the driven gear (10), and a driving long hole (7) is provided at a position of the driving arm (6) close to the driving column (12), and the driving column (12) is located in the driving long hole (7); The mounting plate (4) is provided with a slide seat (17) at the upper and lower ends of the feed port (14), respectively. A slider (18) is slidably arranged in the slide seat (17), and a first cutter (19) and a second cutter (20) are respectively arranged at the opposite ends of the two sliders (18). A linkage column (13) is vertically arranged on the slider (18), and a linkage long hole (8) is opened at a position of the driving arm (6) close to the linkage column (13), and the linkage column (13) is located in the linkage long hole (8); A material support frame (3) is provided at one end of the chassis (1) away from the mounting plate (4), and the material support frame (3) is used to set up a material tray (35). A braking mechanism is provided at the position of the chassis (1) located at the material support frame (3).

2. A medical PVC tube cutting device according to claim 1, characterized in that: A material guide seat (15) is provided in the material inlet (14), and at least one material guide hole (16) is provided on the material guide seat (15).

3. A medical PVC tube cutting device according to claim 1, characterized in that: The braking mechanism comprises an articulated seat (25) and a support plate (27); an arc-shaped braking plate (26) is hingedly connected to the articulated seat (25); a rubber friction pad (30) is provided on the side of the arc-shaped braking plate (26) close to the support frame (3); a telescopic component (28) is hingedly connected between the support plate (27) and the arc-shaped braking plate (26); and an elastic member (29) is mounted on the telescopic component (28).

4. A medical PVC tube cutting device according to claim 1, characterized in that: The chassis (1) is provided with a mounting frame, a storage battery (31) is provided in the mounting frame, and the storage battery (31) is electrically connected to the driving motor (11).

5. The medical PVC tube cutting device according to claim 1, characterized in that: The chassis (1) is provided with a length measuring device (24) at the center line position of the material guide hole (16).

6. A medical PVC tube cutting device according to claim 1, characterized in that: The first cutter (19) and the second cutter (20) are arranged in a staggered manner.

7. A medical PVC tube cutting device according to claim 1, characterized in that: A first blade (21) is formed at one end of the first cutter (19), and a second blade (22) is formed at one end of the second cutter (20), wherein the first blade (21) and the second blade (22) are formed towards a side away from each other.

8. The medical PVC tube cutting device according to claim 1, characterized in that: The chassis (1) is located at one end of the supporting frame (3) and is provided with a plurality of upright posts (32) in a rectangular shape. An end of the plurality of upright posts (32) away from the chassis (1) is provided with a storage platform (33), and a handle (34) is provided on the storage platform (33).

9. A medical PVC tube cutting device according to claim 2, characterized in that: There are two material guide holes (16), and the diameters of the two material guide holes (16) are different.

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