Pipe cutting machine

Abstract

The utility model provides a pipe cutting machine which comprises a bottom plate, a stop assembly, a sliding assembly and a cutter assembly, a guide groove is formed in the bottom plate, and the guide groove is formed in the width direction of the bottom plate; the stop assembly comprises a fixing strip and a stop block, a containing groove is formed in the fixing strip and located over one end of the guide groove, a groove opening of the containing groove faces the other end of the guide groove, and the containing groove communicates with the guide groove. The sliding assembly is arranged in the width direction of the bottom plate and located on one side of the guide groove, the cutter assembly comprises a mounting plate and a cutter, the mounting plate is detachably connected with the sliding assembly through a plurality of fasteners, the cutter is obliquely arranged on the side, close to the guide groove, of the mounting plate, and one end of the cutter is located in the guide groove; when the cutter moves to the other end of the guide groove from the end, away from the fixing strip, of the guide groove through the sliding assembly, part of the cutter body of the cutter is located in the containing groove. According to the guide pipe cutting device, high-precision and high-efficiency cutting operation of the guide pipe can be achieved, and the cutting quality of the guide pipe is effectively guaranteed.

Description

Technical Field

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

[0002] Over-the-cannula catheters typically include a catheter assembly and a core needle. Regulations require that when the core needle is fully inserted into the catheter assembly, the end of the catheter should neither extend beyond the base of the needle tip bevel nor extend more than 1mm away from it. Therefore, over-the-cannula catheters typically require precise cutting before assembly.

[0003] Currently, catheters are typically cut using a steel ruler to measure length and then cut with scissors or a blade. However, this method typically only allows for a length accuracy of ±2 mm, failing to meet product performance requirements. This results in the need for two or even multiple cuts to obtain the required length, resulting in low cutting efficiency. Furthermore, the resulting cuts are uneven, severely impacting product quality. Utility Model Content

[0004] Based on this, the purpose of the present utility model is to provide a pipe cutting machine, which aims to solve the technical problem that in the existing technology, the cutting of the catheter is generally carried out by measuring the length with a steel ruler and cutting with scissors or a blade. The length accuracy of the catheter obtained by cutting cannot meet the performance requirements of the product, resulting in the need for secondary or even multiple cutting to obtain a catheter that meets the length requirements. The cutting efficiency is low, and the cut of the catheter obtained by cutting is not smooth, which seriously affects the quality of the product.

[0005] The object of the utility model is to provide a pipe cutting machine, comprising a base plate, a stopper assembly provided on the base plate, a sliding assembly, and a cutter assembly detachably connected to the sliding assembly, wherein the base plate is provided with a guide groove, and the guide groove is arranged along the width direction of the base plate;

[0006] The stop assembly includes a fixing bar and a stop block provided on one side of the fixing bar, the fixing bar is arranged along the length direction of the bottom plate, and a placement groove is provided on the end of the fixing bar away from the stop block, the placement groove is located directly above one end of the guide groove, the notch of the placement groove is arranged toward the other end of the guide groove, and the placement groove is communicated with the guide groove;

[0007] The sliding assembly is arranged along the width direction of the base plate and is located on one side of the guide groove. The cutter assembly includes a mounting plate and a cutter. The mounting plate is detachably connected to the sliding assembly through a plurality of fasteners. The cutter is obliquely arranged on a side of the mounting plate close to the guide groove, and one end of the cutter is located in the guide groove. When the cutter moves from one end of the guide groove away from the fixing bar to the other end of the guide groove through the sliding assembly, part of the blade of the cutter is located in the placement groove.

[0008] Compared with the prior art, the beneficial effect of the pipe cutting machine of the present invention is that: by arranging a stop assembly, a sliding assembly and a cutter assembly on the base plate, high-precision and high-efficiency cutting operations of the catheter can be achieved, and the cutting quality of the catheter is effectively guaranteed. Specifically, the stop assembly includes a fixed bar and a stop block arranged on one side of the fixed bar, and the stop block is provided with a placement groove. Through the cooperation of the stop assembly and the base plate, the catheter can be positioned and placed, and the required cutting length of the catheter can be set. The cutting length of the catheter can be unified in multiple cutting operations, and the cutting accuracy of the catheter can be ensured, thereby effectively ensuring the cutting quality of the catheter. At the same time, the mobility of the cutter is achieved by detachably arranging the cutter assembly on the sliding assembly. The design of the movable cutting of the cutter makes the incision of the catheter smooth, which can improve the cutting efficiency of the catheter while ensuring the cutting quality of the catheter, and the cutter can be removed from the sliding assembly for replacement after being damaged, effectively ensuring the performance of the entire device.

[0009] In addition, the pipe cutting machine according to the present invention may also have the following additional technical features:

[0010] Furthermore, one side of the fixing bar close to the guide groove is tightly fitted with one side of the stop block, and the stop surface of the stop block is perpendicular to the one side of the fixing bar close to the guide groove and the surface of the base plate, respectively, so that the one side of the fixing bar close to the guide groove, the stop surface of the stop block, and the surface of the base plate together form a limiting space for placing the catheter.

[0011] Furthermore, the height of the fixing bar and the height of the stop block are both greater than the diameter of the catheter.

[0012] Furthermore, the angle between the cutting surface of the cutter and the surface of the bottom plate is 30°-45°.

[0013] Furthermore, the placement groove is a U-shaped groove, and the notch of the U-shaped groove is arranged toward an end of the guide groove away from the fixing bar.

[0014] Furthermore, the corners of the bottom plate are rounded.

[0015] Furthermore, the sliding assembly includes a slide rail and a slider slidably connected to the slide rail, the slide rail is arranged along the width direction of the base plate, and a gap for accommodating the catheter is provided between one end of the slide rail close to the fixing bar and the fixing bar.

[0016] Furthermore, the sliding assembly further includes a limiting member, which is used to limit the sliding of the slider, and one limiting member is provided at each end of the slide rail in the length direction.

[0017] Furthermore, the mounting plate is an L-shaped plate, one side plate of the L-shaped plate is detachably connected to the slider via a plurality of fasteners, the other side plate of the L-shaped plate is tightly attached to the side of the slider, and the cutter is detachably connected to the side of the other side plate of the L-shaped plate facing away from the slider via a plurality of fasteners. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the pipe cutting machine of the present invention in use before cutting the pipe;

[0019] Figure 2 This is a schematic diagram of the pipe cutting machine of the present invention in use after completing pipe cutting;

[0020] Figure 3 This is an exploded schematic diagram of the pipe cutting machine of the present invention.

[0021] Among them, the above-mentioned drawings include the following figure marks: 10-base plate; 101-guide groove; 20-stop assembly; 21-fixing bar; 201-placement groove; 22-stop block; 30-sliding assembly; 31-slide rail; 32-slider; 33-limiting member; 40-cutter assembly; 41-mounting plate; 42-cutter; 50-fastener; 60-conduit.

[0022] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0023] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The drawings illustrate several embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] See also Figures 1 to 3 , shown is a pipe cutting machine of the present invention, comprising a base plate 10, a stop assembly 20 provided on the base plate 10, a sliding assembly 30, and a cutter assembly 40 detachably connected to the sliding assembly 30, wherein a guide groove 101 is provided on the base plate 10, and the guide groove 101 is arranged along the width direction of the base plate 10, and the total length of the guide groove 101 is less than the width of the base plate 10. Furthermore, in this embodiment, the corners of the base plate 10 are rounded structures.

[0027] As an example, the stop assembly 20 is used to position the catheter 60 and set the required cutting length of the catheter 60. Specifically, the stop assembly 20 includes a fixing bar 21 and a stop block 22 arranged on one side of the fixing bar 21, wherein the fixing bar 21 is arranged along the length direction of the base plate 10, and the two ends of the fixing bar 21 in the length direction are respectively fastened to the base plate 10 by a fastener 50. In this embodiment, the fastener 50 can be a connecting bolt. A placement groove 201 is provided on the end of the fixing bar 21 away from the stop block 22, and the placement groove 201 is used to accommodate the cutter 42. The placement groove 201 is located directly above one end of the guide groove 101, and the notch of the placement groove 201 is set toward the other end of the guide groove 101, and the placement groove 201 is connected to the guide groove 101. As a specific example, in this embodiment, the placement groove 201 is a U-shaped groove, and the notch of the U-shaped groove is set toward the end of the guide groove 101 away from the fixing bar 21, and the notch width of the U-shaped groove is consistent with the notch width of the guide groove 101.

[0028] Furthermore, the side of the fixing strip 21 near the guide groove 101 is tightly fitted with the side of the stop block 22, and the stop surface of the stop block 22 is perpendicular to the side of the fixing strip 21 near the guide groove 101 and the surface of the base plate 10, respectively. This allows the side of the fixing strip 21 near the guide groove 101, the stop surface of the stop block 22, and the surface of the base plate 10 to collectively form a limited space for placing the catheter 60. In this embodiment, the stop block 22 is fixed to the base plate 10 using an adhesive such as glue. The distance between the stop surface of the stop block 22 and the center of the notch of the placement groove 201 is the required cutting length of the catheter 60. When the cutting length of the catheter 60 needs to be changed, the distance between the stop surface of the stop block 22 and the center of the notch of the placement groove 201 can be reduced or increased by changing the position of the stop block 22 on the base plate 10. It should be noted that the fixing method of the stop block on the bottom plate in the present invention is not limited to the pasting method in this embodiment, and other fixing methods that can achieve the purpose of the present invention can also be used.

[0029] Furthermore, the height of the fixing bar 21 and the height of the stop block 22 are both greater than the diameter of the catheter 60. In this way, the limited space formed by the side of the fixing bar 21 close to the guide groove 101, the stop surface of the stop block 22, and the surface of the base plate 10 can completely accommodate the catheter 60, thereby effectively avoiding the position displacement of the catheter 60 during the cutting process and ensuring the cutting quality of the catheter 60.

[0030] As an example, the sliding assembly 30 is used to move the cutter assembly 40. Specifically, the sliding assembly 30 is arranged along the width direction of the base plate 10 and is located on one side of the guide groove 101. In this embodiment, the sliding assembly 30 includes a slide rail 31 and a slider 32 slidably connected to the slide rail 31. The slide rail 31 is arranged between the guide groove 101 and the stop block 22. The slide rail 31 is arranged along the width direction of the base plate 10. In other words, the slide rail 31 is arranged perpendicular to the fixed bar 21, and a gap for accommodating the conduit 60 is provided between the end of the slide rail 31 close to the fixed bar 21 and the fixed bar 21. Furthermore, the sliding assembly 30 also includes a limiter 33, which is used to limit the sliding of the slider 32. A limiter 33 is provided at each end of the slide rail 31 in the length direction. In this embodiment, the limiter 33 is a limiter bolt, and an internal threaded hole for installing the limiter bolt is provided at each end of the slide rail 31 in the length direction. The axial direction of the internal threaded hole is arranged along the length direction of the slide rail 31. When the slider 32 is assembled on the slide rail 31, the limiter bolt can be inserted into the internal threaded hole to limit the sliding of the slider 32 on the slide rail 31.

[0031] As an example, the cutter assembly 40 is used to cut the catheter 60. Specifically, the cutter assembly 40 includes a mounting plate 41 and a cutter 42. The mounting plate 41 is detachably connected to the sliding assembly 30 through a plurality of fasteners 50. In this embodiment, the mounting plate 41 is an L-shaped plate, one side plate of the L-shaped plate is detachably connected to the slider 32 through a plurality of fasteners 50, the other side plate of the L-shaped plate is tightly attached to the side of the slider 32, and the side of the other side plate of the L-shaped plate facing away from the slider 32 is detachably connected to the cutter 42 through a plurality of fasteners 50, wherein the fastener 50 can be a connecting bolt. Furthermore, the cutter 42 is obliquely arranged on one side of the mounting plate 41 close to the guide groove 101, and one end of the cutter 42 is located in the guide groove 101. The angle between the cut surface of the cutter 42 and the surface of the bottom plate 10 is 30°-45°. As a specific example, in this embodiment, the angle between the cut surface of the cutter 42 and the surface of the bottom plate 10 is 35°. In actual use, when the cutter 42 moves from one end of the guide groove 101 away from the fixing bar 21 to the other end of the guide groove 101 through the sliding assembly 30, part of the blade of the cutter 42 is located in the placement groove 201. In this embodiment, as shown in FIG. Figure 2 As shown, when part of the blade of the cutter 42 is located in the placement groove 201 , the other end of the cutter 42 away from the bottom plate 10 is higher than the placement groove 201 .

[0032] During actual use, the working principle of the pipe cutting machine of the present invention can be as follows: when starting for the first time, first confirm whether the cutter 42 is fully installed and fixed, and whether the blade of the cutter 42 is worn. If it is worn, the cutter 42 can be disassembled and replaced. When the cutter 42 is confirmed to be in good condition, the cutting operation of the catheter 60 can be carried out. In this way, the problem of poor cutting quality of the catheter 60 caused by the poor condition of the cutter 42 can be avoided. Then, the catheter 60 is placed in the limited space formed by the side of the fixing bar 21 close to the guide groove 101, the stop surface of the stop block 22, and the surface of the bottom plate 10. Specifically, one end of the catheter 60 is extended along the fixing bar 21 to the stop surface of the stop block 22, and the end face of one end of the catheter 60 is in contact with the stop surface of the stop block 22. At the same time, the operator gently flattens the catheter 60 with one hand so that one side of the tube body of the catheter 60 is tangentially aligned with the side of the fixing bar 21. Then the operator's other hand The slider 32 is manually moved along the slide rail 31 toward the fixed bar 21 until the slider 32 moves to the end of the slide rail 31 near the fixed bar 21. During this process, the cutter 42 will move along with the slider 32 to the catheter 60. The blade of the cutter 42 will contact the catheter 60 and cut the catheter 60. When the cutter 42 completes cutting the catheter 60, the slider 32 can be moved in the opposite direction to the end of the slide rail 31 away from the fixed bar 21. At this time, the cut catheter 60 of the required length can be removed. If the catheter 60 needs to be cut multiple times, the above cutting process can be repeated to obtain catheters 60 of uniform length. Since the cutter 42 is cut by movement, the cut of the catheter 60 is smooth, which can ensure the cutting quality of the catheter 60 while improving the cutting efficiency of the catheter 60.

[0033] In summary, the beneficial effects of the pipe cutting machine of the present invention are: by arranging a stop assembly, a sliding assembly and a cutter assembly on the base plate, high-precision and high-efficiency cutting operations on the catheter can be achieved, and the cutting quality of the catheter is effectively guaranteed. Specifically, the stop assembly includes a fixed bar and a stop block arranged on one side of the fixed bar, and the stop block is provided with a placement groove. Through the cooperation of the stop assembly and the base plate, the catheter can be positioned and placed, and the required cutting length of the catheter can be set. The cutting length of the catheter can be unified in multiple cutting operations, and the cutting accuracy of the catheter can be ensured, thereby effectively ensuring the cutting quality of the catheter. At the same time, the mobility of the cutter is achieved by detachably arranging the cutter assembly on the sliding assembly. The design of the movable cutting of the cutter makes the incision of the catheter smooth, which can improve the cutting efficiency of the catheter while ensuring the cutting quality of the catheter, and the cutter can be removed from the sliding assembly for replacement after being damaged, effectively ensuring the performance of the entire device.

[0034] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0035] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A pipe cutting machine, characterized in that: The invention comprises a bottom plate, a stopper assembly provided on the bottom plate, a sliding assembly, and a cutter assembly detachably connected to the sliding assembly, wherein the bottom plate is provided with a guide groove, and the guide groove is arranged along the width direction of the bottom plate; The stop assembly includes a fixing bar and a stop block provided on one side of the fixing bar, the fixing bar is arranged along the length direction of the bottom plate, and a placement groove is provided on the end of the fixing bar away from the stop block, the placement groove is located directly above one end of the guide groove, the notch of the placement groove is arranged toward the other end of the guide groove, and the placement groove is communicated with the guide groove; The sliding assembly is arranged along the width direction of the base plate and is located on one side of the guide groove. The cutter assembly includes a mounting plate and a cutter. The mounting plate is detachably connected to the sliding assembly through a plurality of fasteners. The cutter is obliquely arranged on a side of the mounting plate close to the guide groove, and one end of the cutter is located in the guide groove. When the cutter moves from one end of the guide groove away from the fixing bar to the other end of the guide groove through the sliding assembly, part of the blade of the cutter is located in the placement groove.

2. The pipe cutting machine according to claim 1, characterized in that The side of the fixing strip close to the guide groove fits tightly with the side of the stop block, and the stop surface of the stop block is perpendicular to the side of the fixing strip close to the guide groove and the surface of the base plate, so that the side of the fixing strip close to the guide groove, the stop surface of the stop block, and the surface of the base plate together form a limiting space for placing the catheter.

3. The pipe cutting machine according to claim 2, characterized in that The height of the fixing bar and the height of the stopping block are both greater than the diameter of the conduit.

4. The pipe cutting machine according to claim 1, characterized in that The included angle between the cutting surface of the cutter and the surface of the bottom plate is 30°-45°.

5. The pipe cutting machine according to claim 1, characterized in that The placement groove is a U-shaped groove, and the notch of the U-shaped groove is arranged toward the end of the guide groove away from the fixing bar.

6. The pipe cutting machine according to claim 1, characterized in that The corners of the bottom plate are rounded.

7. The pipe cutting machine according to claim 1, characterized in that The sliding assembly includes a sliding rail and a slider slidably connected to the sliding rail. The sliding rail is arranged along the width direction of the base plate, and a gap for accommodating a catheter is provided between one end of the sliding rail close to the fixing bar and the fixing bar.

8. The pipe cutting machine according to claim 7, characterized in that The sliding assembly further includes a limiting member, which is used to limit the sliding of the slider. One limiting member is provided at each end of the slide rail in the length direction.

9. The pipe cutting machine according to claim 7, characterized in that: The mounting plate is an L-shaped plate, one side of the L-shaped plate is detachably connected to the slider via a plurality of fasteners, the other side of the L-shaped plate is in close contact with the side of the slider, and the cutter is detachably connected to the other side of the L-shaped plate away from the slider via a plurality of fasteners.

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