Sheath cutting tool and cutting system

Abstract

This utility model discloses a sheath cutting fixture and system. The sheath cutting fixture includes a base, a loading component, a locking structure, and an adjusting component. A limiting portion is provided at one transverse end of the base. In the loading position, the locking structure can rotate to be offset from the first mounting hole in the transverse direction of the base, allowing the first end of the first mounting hole to be exposed for sheath insertion and the sheath to exit from the second end of the first mounting hole to abut against the limiting portion. In the working position, at least a portion of the locking structure can rotate to the first end of the first mounting hole to abut against both ends of the sheath. Furthermore, in the working position, when the adjusting component rotates under external force, it drives the loading component to rotate relative to the base, thereby rotating the sheath. This utility model can completely and accurately cut off the outer protective film, resulting in higher cutting efficiency and better cutting quality, leading to a higher quality finished sheath.

Description

Technical Field

[0001] This utility model relates to the technical field of medical devices, specifically to a sheath cutting tool and cutting system. Background Technology

[0002] The sheath typically consists of multiple layers (such as an inner lubricating layer, a middle reinforcing layer, and an outer protective film). The outer protective film protects the middle tubing of the sheath during transfer. To adapt the sheath to different ablation nozzle tips, the outer protective film is usually cut. The core of the film-cutting process is to cut the specified outer film to a fixed length, depth, or irregular shape without damaging the main structure of the sheath (such as the metal braided reinforcing layer and the inner tubing), ultimately achieving the functionalization of the sheath (such as ease of bending, improved fit, and ease of subsequent assembly). However, traditional sheath cutting usually involves manually positioning the sheath before cutting. Manual positioning is inaccurate and unreliable, and manual cutting can easily lead to window position misalignment, edge burrs, or tube deformation, affecting production efficiency and product consistency. Utility Model Content

[0003] In order to solve the above-mentioned technical problems, the main purpose of this utility model is to provide a sheath cutting tool and cutting system, which aims to solve the problem that the traditional sheath cutting is done manually, which is prone to deviation, edge burrs or tube deformation, affecting production efficiency and product consistency.

[0004] To achieve the above objectives, this utility model proposes a sheath cutting tool, comprising:

[0005] A base, wherein a limiting part is provided at one of the transverse ends of the base;

[0006] The loading component is rotatably mounted on the base and has a first mounting hole suitable for accommodating the sheath tube. The first mounting hole is arranged to penetrate the loading component along the transverse direction of the base and is suitable for forming an anti-rotation fit with the sheath tube.

[0007] A locking structure is rotatably connected to the base to have a loading position and a working position, wherein the locking structure and the limiting portion are respectively located at both ends of the loading member along the lateral direction of the base;

[0008] An adjusting element is connected to the locking structure;

[0009] When in the loading position, the locking structure is rotatable to be offset from the first mounting hole in the lateral direction along the base, such that the first end of the first mounting hole is exposed to allow the sheath tube to pass through, and the sheath tube can pass through the second end of the first mounting hole to abut against the limiting portion; when in the working position, at least a portion of the locking structure is rotatable to the first end of the first mounting hole to abut against the limiting portion at both ends of the sheath tube respectively;

[0010] Furthermore, when the adjusting member is rotated under the action of an external force in the working position, the loading member can be driven to rotate relative to the base, so as to drive the sheath to rotate together.

[0011] Optionally, the base is provided with a receiving groove; the loading member includes:

[0012] Two rotating columns are arranged at a relative interval along the transverse direction of the base. The first mounting hole is arranged through the two rotating columns. Both rotating columns are accommodated in the receiving groove, and the first mounting hole is located above the opening of the receiving groove.

[0013] A connecting plate is connected between the two rotating columns and is located on one side of the first mounting hole;

[0014] Two retaining rings are respectively engaged on the outer side of the two rotating columns and connected to the base, which are used to limit the rotation of the two rotating columns within the receiving groove.

[0015] Optionally, the first mounting hole is non-circular and adapted to match the shape of the sheath.

[0016] Optionally, the locking structure includes:

[0017] A rotating frame is rotatably connected to the base. When in the loading position, the rotating frame stands sideways on the base. When in the working position, at least a portion of the rotating frame is located at the first end of the first mounting hole in the lateral direction.

[0018] The sealing needle has one end connected to the rotating frame. When in the working position, the other end of the sealing needle can be adapted to extend into the first tube of the sheath located in the first mounting hole. When in the loading position, the sealing needle is positioned away from the first mounting hole.

[0019] The adjusting component is mounted on the rotating frame and connected to the sealing needle. When the adjusting component is rotated by an external force, it causes the sealing needle to rotate as well.

[0020] Optionally, the rotating frame includes two rotating arms and a mounting wall connected to one end of the two rotating arms. The other ends of the two rotating arms are respectively connected to the two longitudinal sides of the base, so as to be located on the two longitudinal sides of the loading member. The sealing needle is located between the two rotating arms. The adjusting member is rotatably mounted on the mounting wall. One end of the adjusting member is located between the two rotating arms to be connected to the sealing needle, and the other end of the adjusting member is located outside the mounting wall.

[0021] Optionally, the mounting wall is provided with a second mounting hole; the adjusting member includes an adjusting rod that is rotatably inserted through the second mounting hole and an adjusting wheel located at one end of the adjusting rod, and the sealing needle is located at the other end of the adjusting rod.

[0022] Optionally, the locking structure further includes an elastic telescopic member, which is disposed against the inner side of the mounting wall and the other end of the adjusting rod.

[0023] Optionally, the other end of the adjusting rod is provided with a limiting hole, and the sealing needle is located on one side of the limiting hole;

[0024] When in the working position, the limiting hole is adapted to be fitted onto the outside of the second fitting of the sheath.

[0025] Optionally, both of the opposing surfaces of the two rotating arms are provided with limiting protrusions. When in the working position, both limiting protrusions abut against the base to restrict the continuous rotation of the two rotating arms from the loading position toward the working position; and / or,

[0026] The base has multiple positioning parts at its bottom, which are adapted to be positioned and engaged with the platform to be installed.

[0027] This utility model also provides a film cutting system, including the above-mentioned sheath film cutting fixture and film cutting knife, wherein the cutting part of the film cutting knife is located on the end face of the first end of the first mounting hole and / or the end face of the second end of the first mounting hole.

[0028] The technical solution provided by this utility model has the following beneficial effects:

[0029] The sheath cutting fixture provided by this utility model includes a base, a loading component, a locking structure, and an adjusting component. A limiting part is provided at one lateral end of the base. The loading component is adapted to hold the sheath. The locking structure acts on the sheath in the working position. The locking structure and the limiting part together abut against both ends of the sheath, thereby limiting the lateral placement of the sheath on the loading component and restricting the length of the sheath extending out of the first mounting hole on the loading component. This allows the cutting tool to be positioned corresponding to the position of the sheath extending out of the first mounting hole, better ensuring the cutting position of the cutting tool on the sheath, so that each sheath, after being placed on the loading component, can pass through... The limiting part and the locking structure together limit the position of the sheath, thus ensuring the consistency of the cutting position each time, the accuracy of the sheath cutting film, and the better guarantee of the cutting precision of the sheath in the lateral direction. Moreover, the loading member can rotate relative to the base, and the rotation of the sheath can be adjusted by the adjusting member. Specifically, in the working position, when the adjusting member is rotated by an external force, it can drive the loading member to rotate relative to the base, so as to drive the sheath to rotate together. During the rotation, the sheath comes into contact with the film cutting tool, thereby completely and accurately cutting off the outer protective film, with higher cutting efficiency and better cutting quality, resulting in a better quality finished sheath. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0031] Figure 1 A schematic diagram of an embodiment of a sheath cutting tool provided by this utility model;

[0032] Figure 2 for Figure 1 A schematic diagram of the sheath cutting tool (in the loading position) as described above;

[0033] Figure 3 for Figure 1 A schematic diagram of the sheath cutting tool (in the working position) described above;

[0034] Figure 4 for Figure 3 A schematic diagram of the sheath cutting tool described in the image (in the working position) from another perspective;

[0035] Figure 5 for Figure 3An exploded view of the sheath cutting tool described above (in the working position);

[0036] Figure 6 This is a schematic diagram of an embodiment of a film-cutting system provided by this utility model.

[0037] Explanation of icon numbers:

[0038] 100-Sheath cutting tool; 1-Base; 11-Accommodation groove; 12-Limiting part; 13-Positioning part; 2-Loading part; 21-Rotating column; 22-Connecting plate; 23-Snap ring; 24-First mounting hole; 3-Locking structure; 31-Rotating frame; 311-Rotating arm; 312-Limiting protrusion; 313-Mounting wall; 314-Second mounting hole; 32-Sealing needle; 33-Elastic telescopic part; 4-Adjusting part; 41-Adjusting rod; 411-Limiting hole; 42-Adjusting wheel; 200-Cut film cutter; 300-Sheath; 301-First fitting; 302-Second fitting; 303-Outer protective film.

[0039] The realization of the purpose, functional characteristics and excellent effects of this utility model will be further explained below in conjunction with specific embodiments and accompanying drawings. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0041] It should be noted that if the embodiments of this utility model involve directional indication, the directional indication is only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0042] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0043] This utility model provides a sheath cutting tool 100, which is suitable for cutting the outer protective film 303 of the sheath 300 at the front end of a steam ablation gun, so that the sheath 300 can be better connected to the steam ablation gun. The sheath 300 includes a first tube 301, a second tube 302, and an outer protective film 303 covering the outside of the first tube 301 and the second tube 302. Both the first tube 301 and the second tube 302 are generally cylindrical with open ends, arranged side-by-side, and the diameters of the first tube 301 and the second tube 302 are different, resulting in the outer protective film 303 covering the outside of the first tube 301 and the second tube 302 being non-circular. Of course, each sheath tube 300 may include, but is not limited to, two tubes, and may also include more tubes, with multiple tubes arranged reasonably so that the outer protective film 303 is non-circular after covering the outside of multiple tubes. This utility model is mainly used to improve the sheath tube cutting tool 100 for limiting the position of the sheath tube 300 when cutting the outer protective film 303 of the sheath tube 300.

[0044] Specifically, please refer to Figures 1 to 3In this embodiment, the sheath cutting fixture 100 includes a base 1, a loading member 2, a locking structure 3, and an adjusting member 4. A limiting portion 12 is provided at one transverse end of the base 1. The loading member 2 is rotatably mounted on the base 1 and has a first mounting hole 24 suitable for accommodating the sheath 300. The first mounting hole 24 extends through the loading member 2 along the transverse direction of the base 1 and is suitable for forming an anti-rotation fit with the sheath 300. The locking structure 3 is rotatably connected to the base 1 to have a loading position and a working position. The locking structure 3 and the limiting portion 12 are located at opposite ends of the loading member 2 along the transverse direction of the base 1. The adjusting member 4 is connected to the locking structure 3. In the loading position, the locking structure 3 can rotate to be offset from the first mounting hole 24 laterally along the base 1, such that the first end of the first mounting hole 24 is exposed to allow the sheath tube 300 to pass through, and the sheath tube 300 can exit from the second end of the first mounting hole 24 to abut against the limiting portion 12. In the working position, at least a portion of the locking structure 3 can rotate to the first end of the first mounting hole 24 to abut against both ends of the sheath tube 300, respectively, acting on the limiting portion 12. Furthermore, in the working position, when the adjusting member 4 is rotated by an external force, it can drive the loading member 2 to rotate relative to the base 1, thereby causing the sheath tube 300 to rotate as well.

[0045] In this invention, a limiting part 12 is provided at one lateral end of the base 1. The loading member 2 is adapted to accommodate the sheath tube 300, and the locking structure 3 acts on the sheath tube 300 in the working position. The locking structure 3 and the limiting part 12 together abut against both ends of the sheath tube 300, thereby limiting the lateral placement of the sheath tube 300 on the loading member 2. This limits the length of the sheath tube 300 extending out of the first mounting hole 24 on the loading member 2, thereby allowing the film cutting tool 200 to be positioned corresponding to the position where the sheath tube 300 extends out of the first mounting hole 24. This design ensures better positioning of the cutting blade 200 on the sheath 300, allowing each sheath 300 to be positioned by the limiting part 12 and the locking structure 3 after being placed on the loading member 2. This reliably restricts the position of the sheath 300, guaranteeing consistency in the cutting position and accuracy of the sheath 300's film cutting, as well as better ensuring the lateral cutting precision of the sheath 300. Furthermore, the loading member 2 can rotate relative to the base 1, and the rotation of the sheath 300 can be adjusted via the adjusting member 4. Specifically, in the working position, when the adjusting member 4 is rotated under external force, it drives the loading member 2 to rotate relative to the base 1, thus rotating the sheath 300 along with it. During rotation, the sheath 300 contacts the cutting blade 200, allowing for complete and accurate cutting of the outer protective film 303, resulting in higher cutting efficiency and better cutting quality, leading to a higher quality finished sheath 300.

[0046] Because the sheath 300 is elongated and has a small diameter, the base 1 is preferably a rectangular elongated shape, having a length direction, a width direction, and a height direction. When the sheath cutting tool 100 is in normal use, the base 1 is placed horizontally. The horizontal direction refers to the length direction of the base 1, the vertical direction refers to the width direction, and the vertical direction refers to the height direction. Unless otherwise specified, all descriptions of orientation in this invention shall be taken as such. The first mounting hole 24 extends along the length direction of the base 1 to provide sufficient space for the sheath 300 to be placed therein. The first end of the first mounting hole 24 is designated as the insertion end of the sheath 300, and the first end of the first mounting hole 24 corresponds to the first end of the base 1 along its length direction. The limiting part 12 is located at the second end of the base 1 along its length direction.

[0047] Preferably, the first mounting hole 24 is non-circular and adapted to match the shape of the sheath 300. This allows the sheath 300 to rotate along with the loading member 2 under the action of the first mounting hole 24 when the loading member 2 rotates relative to the base 1, thereby achieving ring cutting and improving cutting efficiency.

[0048] Understandably, when cutting the outer protective film 303, it is necessary to cut the entire circumference of the outer protective film 303 to ensure the integrity of the cut and to ensure that the cut edge is burr-free. Therefore, the loading member 2 can be rotated relative to the base 1, so that the sheath tube 300 can also rotate. When the film cutting tool 200 contacts the outer protective film 303, the sheath tube 300 rotates a full circle, thus completely cutting off the outer protective film 303.

[0049] Among them, combined Figure 4 and Figure 5 As shown, a receiving groove 11 is provided on the base 1. The loading component 2 includes two rotating columns 21, a connecting plate 22, and two retaining rings 23. The two rotating columns 21 are arranged at a relative interval along the transverse direction of the base 1. The two rotating columns 21 are approximately cylindrical, and preferably the two rotating columns 21 are the same size. The first mounting hole 24 is provided through the two rotating columns 21. Both rotating columns 21 are accommodated in the receiving groove 11, and the first mounting hole 24 is located above the opening of the receiving groove 11, ensuring that the sheath 200 placed on the loading component 2 is always exposed outside the receiving groove 11 during rotation and will not interfere with the receiving groove 11. The connecting plate 22 is connected between the two rotating columns 21 and is located on one side of the first mounting hole 24. Two retaining rings 23 are correspondingly engaged on the outer sides of the two rotating columns 21 and connected to the base 1, used to limit the rotation of the two rotating columns 21 within the receiving groove 11. By limiting the two rotating columns 21 within the receiving groove 11 through the two retaining rings 23, the two rotating columns 21 can rotate relative to the receiving groove 11, preventing the loading member 2 from shifting during rotation. Furthermore, by accommodating at least a portion of the rotating columns 21 within the receiving groove 11, the height of the loading member 2 protruding from the upper surface of the base 1 is reduced, thereby making the overall height of the sheath cutting tool 100 smaller and the structure more compact.

[0050] Two rotating posts 21 are respectively disposed near the two sidewalls of the receiving groove 11 along its length. Each retaining ring 23 is arranged in a semi-circular shape to press against the upper side of the corresponding rotating post 21, confining the rotating post 21 within the receiving groove 11. The two ends of each retaining ring 23 are respectively connected to the two sides of the base 1 along its width, and a certain gap is formed between each retaining ring 23 and the corresponding rotating post 21 to allow the rotating post 21 to rotate, and to prevent the rotating post 21 from dislodging from the receiving groove 11.

[0051] As for the locking structure 3, the locking structure 3 is mainly used to limit the sheath tube 300 when it is in the working position to ensure that the cutting position of the sheath tube 300 is accurate; and it is also used to facilitate the sheath tube 300 to be disassembled and assembled from the sheath tube cutting tool 100 when it is in the loading position, so that the sheath tube 300 is easier to pick up and put down and improves the operating efficiency.

[0052] Preferably, combined with Figure 1 , Figure 3 and Figure 4 As shown, the locking structure 3 includes a rotating frame 31 and a sealing needle 32. The rotating frame 31 is rotatably connected to the base 1 and is located at the first end of the base 1 along its length. In the loading position, the rotating frame 31 stands sideways on the base 1, and is arranged vertically, with the angle between the rotating frame 31 and the base 1 approaching 90°. In the working position, at least a portion of the rotating frame 31 is located at the first end of the first mounting hole 24 in the lateral direction, so that the sealing needle 32 can better abut against the first end of the sheath 300, thereby clamping both ends of the sheath 300 together with the limiting part 12, better limiting the position of the sheath 300 on the sheath cutting fixture 100, and ensuring accurate cutting position.

[0053] One end of the sealing needle 32 is connected to the rotating frame 31, and the other end of the sealing needle 32 is suspended to accommodate the sheath 300. In the working position, the other end of the sealing needle 32 can be inserted into the first fitting 301 of the sheath 300 located in the first mounting hole 24 and abut against the first fitting 301, thereby securing the entire sheath 300 against the limiting portion 12 via the sealing needle 32. In the loading position, the sealing needle 32 is positioned away from the first mounting hole 24, providing sufficient space at the end of the first mounting hole 24 for insertion of the sheath 300, making the insertion and removal of the sheath 300 easier.

[0054] In this design, along the length of the base 1 and from its second end toward its first end, the outer diameter of the sealing needle 32 gradually increases. This allows the sealing needle 32 to gradually form an interference fit with the first pipe fitting 301 as its outer diameter increases after it extends into the first pipe fitting 301, thus creating a stop-fit. This design also allows for better fit between the sealing needle 32 and first pipe fittings 301 of different diameters, improving the applicability of the sheath cutting tool 100 and better meeting the cutting requirements of different sheaths 300.

[0055] The adjusting member 4 is mounted on the rotating frame 31 and connected to the sealing needle 32. When the adjusting member 4 is subjected to external force, it rotates, causing the sealing needle 32 to rotate as well. When the rotating frame 31 switches between the working position and the loading position, the adjusting member 4 can also move accordingly to avoid obstructing the assembly and disassembly of the sheath 300. Furthermore, in the working position, the rotation direction of the adjusting member 4 is aligned with the rotation direction of the sheath 300, allowing for better control of the sheath 300's rotation.

[0056] Furthermore, combined Figure 4 and Figure 5 As shown, the rotating frame 31 includes two rotating arms 311 and a mounting wall 313 connected to one end of the two rotating arms 311. The other ends of the two rotating arms 311 are respectively connected to the two longitudinal sides of the base 1, so as to be located on the two longitudinal sides of the loading member 2. The two rotating arms 311 can be rotatably connected to the rotating holes of the base 1 through protrusions, so that the rotating arms 311 can flexibly rotate between the loading position and the working position. The sealing needle 32 is located between the two rotating arms 311, and the two rotating arms 311 can cover the sealing needle 32 to prevent the sealing needle 32 from being exposed and accidentally injuring the operator. The adjusting member 4 is rotatably mounted on the mounting wall 313. One end of the adjusting member 4 is located between the two rotating arms 311 to connect with the sealing needle 32, and the other end of the adjusting member 4 is located outside the mounting wall 313. Here, "inner" and "outer" refer to the areas enclosed by the two rotating arms 311 themselves. The area enclosed by the two rotating arms 311, the base 1, and the mounting wall 313 is the "inner" area, and the area outside this area is the "outer" area. A portion of the adjusting member 4 is located on the inner side of the mounting wall 313 to facilitate connection with the sealing needle 32, thereby rotating the sealing needle 32. The other portion of the adjusting member 4 is located on the outer side of the mounting wall 313, providing ample operating space for easier adjustment.

[0057] Specifically, in combination Figures 3 to 5 As shown, a second mounting hole 314 is provided on the mounting wall 313. The adjusting member 4 includes an adjusting rod 41 that rotatably passes through the second mounting hole 314, and an adjusting wheel 42 located at one end of the adjusting rod 41. The sealing needle 32 is located at the other end of the adjusting rod 41. By manually rotating the adjusting wheel 42, the operator can drive the adjusting rod 41 to rotate as well, causing the sealing needle 32 on the adjusting rod 41 to rotate as well. Under the pushing action of the sealing needle 32, the sheath 300 and the loading member 2 are pushed to rotate together.

[0058] The sealing needle 32 may be integrally formed with the adjusting rod 41. Alternatively, the sealing needle 32 may be detachably mounted on the adjusting rod 41.

[0059] Furthermore, a limiting hole 411 is provided at the other end of the adjusting rod 41, and the sealing needle 32 is located on one side of the limiting hole 411. In the working position, the limiting hole 411 is adapted to be fitted onto the outside of the second fitting 302 of the sheath 300. The limiting hole 411 can limit the second fitting 302 of the sheath 300, allowing it to act both axially and radially, thereby improving the positioning effect of the sheath 300 and ensuring better cutting accuracy.

[0060] In one embodiment, the locking structure 3 further includes an elastic telescopic member 33, which abuts against the inner side of the mounting wall 313 and the other end of the adjusting rod 41. The elastic telescopic member 33 allows adjustment of the position of the adjusting rod 41 relative to the adjusting wheel 42, enabling the sealing needle 32 to have a certain amount of telescopic movement, thus ensuring more reliable contact between the sealing needle 32 and the first tube 301 during docking. The elastic telescopic member 33 can be configured as a telescopic spring.

[0061] Among them, combined Figures 3 to 5 As shown, the surfaces of the two rotating arms 311 arranged opposite each other are provided with limiting protrusions 312. When in the working position, the two limiting protrusions 312 abut against the base 1 to limit the two rotating arms 311 from the loading position to the working position to prevent the sealing needle 32 from rotating too much, so that the sealing needle 32 can be more smoothly connected to the first tube 301 of the sheath tube 300.

[0062] In addition, a plurality of positioning parts 13 are provided at the bottom of the base 1. The plurality of positioning parts 13 are adapted to be positioned and engaged with the platform to be installed, so that the base 1 can be positioned on the platform to be installed, making the entire sheath cutting fixture 100 more stable and less prone to displacement during operation. Among them, each positioning part 13 can be configured as a positioning protrusion, and the plurality of positioning protrusions are provided on the bottom surface of the base 1 to be positioned and engaged with the positioning holes on the platform to be installed.

[0063] This utility model also provides a film cutting system, such as Figure 6As shown, the film cutting system includes the aforementioned sheath film cutting fixture 100 and film cutting blade 200. The cutting point of the film cutting blade 200 is located on the end face of the first end of the first mounting hole 24 and / or the end face of the second end of the first mounting hole 24. By setting the two end faces of the film cutting blade 200 corresponding to the axial direction of the first mounting hole 24, the relative position of the film cutting blade 200 and the sheath film cutting fixture 100 is fixed. Therefore, when the position of the sheath 300 and the first mounting hole 24 is relatively fixed, the cutting position of the film cutting blade 200 corresponding to the sheath 300 is relatively fixed, which can better ensure the consistency of the cutting position, improve cutting efficiency, and ensure better film cutting quality.

[0064] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structure made using the contents of the present utility model specification and drawings, or directly or indirectly applied to other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A sheath film cutting tool, characterized by, include: A base, wherein a limiting part is provided at one of the transverse ends of the base; The loading component is rotatably mounted on the base and has a first mounting hole suitable for accommodating the sheath tube. The first mounting hole is arranged to penetrate the loading component along the transverse direction of the base and is suitable for forming an anti-rotation fit with the sheath tube. A locking structure is rotatably connected to the base to have a loading position and a working position, wherein the locking structure and the limiting portion are respectively located at both ends of the loading member along the lateral direction of the base; An adjusting element is connected to the locking structure; When in the loading position, the locking structure is rotatable to be offset from the first mounting hole in the lateral direction along the base, such that the first end of the first mounting hole is exposed to allow the sheath tube to pass through, and the sheath tube can pass through the second end of the first mounting hole to abut against the limiting portion; when in the working position, at least a portion of the locking structure is rotatable to the first end of the first mounting hole to abut against the limiting portion at both ends of the sheath tube respectively; Furthermore, when the adjusting member is rotated under the action of an external force in the working position, the loading member can be driven to rotate relative to the base, so as to drive the sheath to rotate together.

2. The sheath film cutting tool of claim 1, wherein, The base is provided with a receiving groove; the loading component includes: Two rotating columns are arranged at a relative interval along the transverse direction of the base. The first mounting hole is arranged through the two rotating columns. Both rotating columns are accommodated in the receiving groove, and the first mounting hole is located above the opening of the receiving groove. A connecting plate is connected between the two rotating columns and is located on one side of the first mounting hole; Two retaining rings are respectively engaged on the outer side of the two rotating columns and connected to the base, which are used to limit the rotation of the two rotating columns within the receiving groove.

3. The sheath film cutting tool of claim 1, wherein The first mounting hole is non-circular and is adapted to match the shape of the sheath.

4. The sheath film cutting tool of claim 1, wherein, The locking structure includes: A rotating frame is rotatably connected to the base. When in the loading position, the rotating frame stands sideways on the base. When in the working position, at least a portion of the rotating frame is located at the first end of the first mounting hole in the lateral direction. The sealing needle has one end connected to the rotating frame. When in the working position, the other end of the sealing needle can be adapted to extend into the first tube of the sheath located in the first mounting hole. When in the loading position, the sealing needle is positioned away from the first mounting hole. The adjusting component is mounted on the rotating frame and connected to the sealing needle. When the adjusting component is rotated by an external force, it causes the sealing needle to rotate as well.

5. The sheath film cutting tool of claim 4, wherein, The rotating frame includes two rotating arms and a mounting wall connected to one end of the two rotating arms. The other ends of the two rotating arms are respectively connected to the two longitudinal sides of the base, so as to be located on the two longitudinal sides of the loading component. The sealing needle is located between the two rotating arms. The adjusting component is rotatably mounted on the mounting wall. One end of the adjusting component is located between the two rotating arms to be connected to the sealing needle, and the other end of the adjusting component is located outside the mounting wall.

6. The sheath film cutting tool of claim 5, wherein, The mounting wall is provided with a second mounting hole; the adjusting component includes an adjusting rod that is rotatably inserted through the second mounting hole and an adjusting wheel located at one end of the adjusting rod, and the sealing needle is located at the other end of the adjusting rod.

7. The sheath film cutting tool of claim 6, wherein, The locking structure also includes an elastic telescopic member, which is disposed against the inner side of the mounting wall and the other end of the adjusting rod.

8. The sheath film cutting tool of claim 6, wherein, The other end of the adjusting rod is provided with a limiting hole, and the sealing needle is located on one side of the limiting hole; When in the working position, the limiting hole is adapted to be fitted onto the outside of the second fitting of the sheath.

9. The sheath film cutting tool of claim 5, wherein, Both of the two rotating arms, arranged opposite each other, have protruding limiting protrusions on their surfaces. When in the working position, both limiting protrusions abut against the base to restrict the continuous rotation of the two rotating arms from the loading position toward the working position; and / or, The base has multiple positioning parts at its bottom, which are adapted to be positioned and engaged with the platform to be installed.

10. A film cutting system characterized by, Includes the sheath cutting tool as described in any one of claims 1 to 9, and the cutting tool, wherein the cutting portion of the cutting tool is located on the end face of the first end of the first mounting hole and / or the end face of the second end of the first mounting hole.

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