A kind of cutting knife handle and installation method thereof

Abstract

The present invention relates to the field of medical equipment, and in particular to a method for installing a handle of a cutting knife. A method for installing a handle of a cutting knife comprises the following steps: Step 1, inserting a connecting seat into the front end through hole of the core shaft portion of a finger ring frame; Step 2, passing a pull ring through the connecting seat and the front end of the core shaft portion, so that it is slidably sleeved on the core shaft portion of the finger ring frame; Step 3, the guide wire is connected to the traction conductive block after passing through the connecting seat, and the traction conductive block is embedded in the slide groove of the core shaft portion; Step 4, acting on the traction conductive block and / or the pull ring, so that the two move relatively close to each other, and finally the traction conductive block is embedded in the positioning groove; Step 5, the electrode is connected to the traction conductive block, and the traction conductive block is fixed to the pull ring. This scheme constructs a positioning groove on the side wall of the middle part of the pull ring, and the traction conductive block is installed into the positioning groove from the inside of the slide groove. In this way, the guide wire and the traction conductive block can be assembled first and then installed into the positioning groove together. The structure is simple and the installation is convenient.

Description

Technical Field

[0001] The invention relates to the field of medical equipment, and in particular to a handle of a cutting knife and a mounting method thereof. Background Art

[0002] The laparoscopy knife is a necessary medical device in endoscopic surgery. During the operation, the operating handle needs to be pushed to lift the limited part of the cutting wire to the appropriate position before the operation can be performed. The current laparoscopy knife structure can refer to the multifunctional laparoscopy knife recorded in the Chinese utility model patent with the announcement number "CN210056209U", which includes a conductive injection knife head, a snare, a cable, an outer tube assembly, and a core rod with a slip ring and an electrode plug. Figure 1 and 5 As shown, the left end of the core rod is provided with a core rod hole along the axial direction, and the right end is provided with a slide groove, and the core rod hole is connected with the slide groove. The slip ring is provided with a slip ring hole, and a fixing seat is provided in the slip ring hole, and an electrode socket is provided in the fixing seat, and a screw is provided in the electrode socket, and the screw is threadedly connected with the electrode socket.

[0003] When installing the technical solution described in the above-mentioned prior patent, it is necessary to first install the fixing seat inside the slip ring hole, then install the cable into the electrode socket of the fixing seat, then tighten the screws to fix the cable, and finally install the motor plug. The overall structure is complicated and the installation is inconvenient. Summary of the invention

[0004] In order to solve the above problems, the first purpose of the present invention is to provide an installation method for a cutting knife handle. In this scheme, a positioning groove is constructed on the middle side wall of the pull ring, and the traction conductive block is installed into the positioning groove from the inside of the slide groove. In this way, the guide wire and the traction conductive block can be assembled first and then installed into the positioning groove together. The structure is simple and the installation is convenient.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0006] A method for installing a cutting knife handle, characterized in that it comprises the following steps:

[0007] Step 1, insert the connecting seat into the front end through hole of the core shaft of the ring frame;

[0008] Step 2, pass the pull ring through the connecting seat and the front end of the core shaft portion, so that it is slidably sleeved on the core shaft portion of the ring frame;

[0009] Step 3, the guide wire passes through the connection seat and is connected to the traction conductive block, and the traction conductive block is embedded in the slide groove of the core shaft; Step 4, the traction conductive block and / or the pull ring are acted on to make the two move closer to each other, and finally the traction conductive block is embedded in the positioning groove;

[0010] Step 5: Connect the electrode to the traction conductive block, and fix the traction conductive block to the pull ring.

[0011] The present invention adopts the above-mentioned technical scheme, which relates to a method for installing a cutting knife handle. The guide wire traction assembly in the installation method includes a traction conductive block and an electrode. During installation, the guide wire is first passed through and connected to the traction conductive block, and then the traction conductive block is embedded in the slide groove from the notch, and then the traction conductive block and / or the pull ring are acted on to make the two move relatively close to each other so that the traction conductive block is embedded in the positioning groove. Finally, the upper electrode is connected, and the guide block is fixed in the positioning groove to complete the installation. This scheme constructs a positioning groove on the side wall of the middle part of the pull ring, and the traction conductive block is installed into the positioning groove from the inside of the slide groove. In this way, the guide wire and the traction conductive block can be assembled first and then installed into the positioning groove together. The structure is simple and the installation is convenient.

[0012] Preferably, step 1 is as follows: the connector at the rear end of the connector seat is pressed into the through hole at the front end of the mandrel portion, and the multiple connecting petals in the connector head are squeezed together to pass through the through hole; after the connector head passes through the through hole and enters the slide slot, the connecting shaft is inside the through hole, the retaining ring portion abuts against the front end surface of the mandrel portion, and after the connector head is extended into the slide slot, the connecting petals pop open and abut against the inner wall of the slide slot. With this structure, the connector seat and the mandrel portion can be quickly plugged in. After plugging in, the front and rear ends are respectively abutted against the retaining ring portion and the connector head to achieve positioning, but at the same time, the connector seat can also be rotatably connected relative to the mandrel portion.

[0013] As a preferred solution, a retaining wall is constructed on the inner wall of the slide groove of the core shaft part, and the retaining wall can be used to support the top limit traction conductive block. With this structure, step 4 specifically includes:

[0014] 4.1, press the traction conductive block embedded in the chute against the stopper;

[0015] 4.2. Push the pull ring to move it toward the traction conductive block until the traction conductive block is embedded in the positioning groove.

[0016] In this solution, the traction conductive block integrally embedded in the slide groove is fixed and installed in the positioning groove by pushing the pull ring. Compared with the method of pushing the traction conductive block, the installation is more convenient.

[0017] Preferably, the side wall of the pulling conductive block toward the positioning groove is constructed as a guide wall. The guide wall has the function of indicating the direction to prevent reverse installation, and plays a guiding role in the process of pulling the conductive block into the positioning groove.

[0018] In a further preferred embodiment,

[0019] Step 3 specifically includes: the guide wire passes through the connection seat and is connected to the guide wire insertion port of the traction conductive block;

[0020] Step 5 specifically includes: after the electrode is installed in the electrode installation hole, the guide wire is pressed and fixed.

[0021] In this solution, the guide wire is first inserted into the guide wire insertion port, and the pulling conductive block is embedded in the positioning groove, and the upper electrode is installed to achieve electrical connection on the one hand, and to compress and fix the guide wire on the other hand. Not only is the installation more convenient and simple, but it also ensures the stability of the electrical connection between the electrode and the guide wire.

[0022] In a more specific scheme,

[0023] Step 3 specifically includes: the guide wire is passed through the guide wire insertion port and partially embedded in the groove at the bottom of the electrode installation hole;

[0024] Step 5 specifically includes: the electrode thread is screwed into the electrode mounting hole, and the inner end of the electrode positions the guide wire in the groove.

[0025] This technical solution uses a groove to partially embed the guide wire, which means that the radial part of the guide wire is embedded, but not completely embedded; this can prevent the guide wire from rotating with the electrode during the process of screwing into the electrode. It can also prevent the electrode from pressing the guide wire too tightly, causing the guide wire to be damaged by radial pressure, affecting reliability and service life. It can also expand the contact area between the guide wire and the copper block to ensure that it does not slip longitudinally after compression.

[0026] Preferably, a spiral section is constructed on the inner end of the electrode, and when the inner end of the electrode is pressed against the positioning guide wire, the guide wire presses against the cross section of the spiral section to interfere with the reversal of the electrode. In this scheme, the spiral section is similar to the end face of the existing one-way anti-theft screw. During the screwing-in process of the spiral section, the guide wire moves in the spiral direction relative to the spiral section, so as not to interfere with the screwing-in of the spiral section. However, during the screwing-out process, the cross section of the spiral section will press against the guide wire, which has a stop effect, and the forced reversal also has the effect of cutting the guide wire, thereby preventing it from being disassembled after installation.

[0027] Preferably, the middle portion of the pull ring is constructed with a mounting hole that passes through its front and rear end surfaces and is adapted to the cross-section of the core shaft portion, and a positioning groove is formed on the front end opening of the mounting hole; the pull ring is sleeved on the core shaft portion from the front end portion of the core shaft portion.

[0028] The second object of the present invention is a cutting knife handle, characterized in that it is made by adopting the installation method as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 The present invention is a schematic diagram of the structure of the cutting knife handle.

[0030] Figure 2 It is a structural diagram of the ring stand.

[0031] Figure 3 It is a structural schematic diagram of the connecting seat.

[0032] Figure 4 It is a structural schematic diagram of the connecting base connected to the ring frame.

[0033] Figure 5 It is a schematic diagram of the structure of the pull ring.

[0034] Figure 6 It is a structural schematic diagram of the guide wire traction assembly installed on the pull ring.

[0035] Figure 7 It is a schematic diagram of the structure of the guidewire traction assembly.

[0036] Figure 8 This is a structural cross-sectional view of the guide wire traction assembly installed on the pull ring. DETAILED DESCRIPTION

[0037] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more, unless otherwise clearly specified.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" 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 an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0042] Embodiment 1:

[0043] like Figures 1 to 8 As shown, this embodiment relates to a cutter handle, comprising a finger ring frame 1 having a core shaft portion 10, a pull ring 2 slidably mounted on the core shaft portion 10, a guide wire pulling assembly mounted on the pull ring 2, and a connecting seat 3 mounted on the front end of the finger ring frame 1. The core shaft portion 10 of the finger ring frame 1 is provided with a slide groove 11 arranged along its length direction, and the slide groove 11 is provided with a notch 12 on the side wall of the core shaft portion 10, and the notch 12 is provided on at least one side wall of the core shaft portion 10. In the scheme shown in the figure, notches 12 are provided on both sides of the slide groove 11 in the depth direction. A mounting hole 21 is constructed in the middle part of the pull ring 2, which runs through its front and rear end surfaces and is adapted to the cross section of the core shaft portion 10, and a positioning groove 22 is formed on the front end opening of the mounting hole 21, and the pull ring 2 is sleeved on the core shaft portion 10 from the front end of the core shaft portion 10.

[0044] like Figure 2-4As shown, the core shaft portion 10 is internally constructed with a through hole 13 extending from the slide groove 11 to the front end face of the core shaft portion 10, the connecting seat 3 is rotatably inserted into the through hole 13, and the connecting seat 3 is internally constructed with a guide wire channel 30 for the guide wire to pass through. In a specific embodiment, the connecting seat 3 includes a connecting shaft 31 that can penetrate the through hole 13, the front end of the connecting shaft 31 is constructed with a retaining ring portion 32 that can be supported on the front end face of the core shaft portion 10, and the rear end of the connecting shaft 31 is constructed with a connector 33. The connector 33 includes a plurality of connecting petals 34 arranged at intervals in the circumferential direction. When the connecting seat 3 is inserted into the through hole 13, the retaining ring portion 32 abuts against the front end face of the core shaft portion 10, and the connecting head 33 extends into the slide groove 11 and abuts against the inner wall of the slide groove 11. During installation, the connecting head 33 at the rear end of the connecting seat 3 is pressed into the front end through hole 13 of the core shaft portion 10, and the plurality of connecting petals 34 in the connecting head 33 are squeezed close together and pass through the through hole 13. After the connector 33 passes through the through hole 13 and enters the slide groove 11, the connecting shaft 31 is inside the through hole 13, the retaining ring portion 32 abuts against the front end surface of the core shaft portion 10, and after the connector 33 extends into the slide groove 11, the connecting petal body 34 pops open and abuts against the inner wall of the slide groove 11.

[0045] like Figure 6-8 As shown, the guide wire pulling assembly includes a pulling conductive block 4 for connecting the guide wire, and an electrode 5 arranged on the pull ring 2. A positioning groove 22 communicating with the slide groove 11 of the core shaft portion 10 is constructed in the middle of the pull ring 2. After the pulling conductive block 4 is inserted into the slide groove 11 from the notch 12, it generates relative movement with the pull ring 2, so that the pulling conductive block 4 is embedded in the positioning groove 22. The inner end of the electrode 5 is connected to the pulling conductive block 4 in the positioning groove 22, and the pulling conductive block 4 is fixed in the positioning groove 22.

[0046] The pull ring 2 in the handle of the cutting knife is slidably sleeved on the core shaft portion 10 of the finger ring frame 1, and a guide wire traction assembly is installed on the pull ring 2. During use, the thumb is inserted into the first ring 100 on the rear end of the finger ring frame 1, and the index finger and the middle finger are respectively inserted into the second ring 200 in the pull ring 2, so that the pull ring 2 can be controlled to slide relative to the finger ring frame 1 with one hand, thereby controlling the extension and retraction of the guide wire. On this basis, the guide wire traction assembly in this scheme includes a traction conductive block 4 and an electrode 5. During installation, the guide wire is first passed through and connected to the traction conductive block 4, and then the traction conductive block 4 is embedded in the slide groove 11 from the notch 12, and then the traction conductive block 4 and / or the pull ring 2 are acted on to make the two move relatively close to each other, so that the traction conductive block 4 is embedded in the positioning groove 22. Finally, the upper electrode 5 is connected, and the guide electric block is fixed in the positioning groove 22 to complete the installation.

[0047] The main difference between this solution and the above-mentioned background technology is that: this solution constructs a positioning groove 22 on the middle side wall of the pull ring 2, and the traction conductive block 4 is installed into the positioning groove 22 from the inside of the slide groove 11. In this way, the guide wire and the traction conductive block 4 can be assembled first and then installed into the positioning groove 22 together. The structure is simple and easy to install.

[0048] In such Figure 1 , 2 In a further preferred embodiment shown in FIG4, in the moving path of the pull ring 2 along the core shaft portion 10, a retaining wall 14 is constructed on the inner wall of the slide groove 11 of the core shaft portion 10. After the traction conductive block 4 is inserted from the notch 12 into the slide groove 11 and supported on the retaining wall 14, the pull ring 2 moves toward the retaining wall 14 and embeds the traction conductive block 4 into the positioning groove 22. In this embodiment, a retaining wall 14 is constructed on the inner wall of the slide groove 11 of the core shaft portion 10, and the retaining wall 14 can be used to support and limit the traction conductive block 4. During installation, the traction conductive block 4 embedded in the slide groove 11 is first pressed against the retaining wall, and then the pull ring 2 is pushed to move the pull ring 2 toward the traction conductive block 4 until the traction conductive block 4 is embedded in the positioning groove 22. With this embodiment, the traction conductive block 4 embedded in the slide groove 11 as a whole is fixed, and is installed in the positioning groove 22 by pushing the pull ring 2. Compared with the method of pushing the traction conductive block 4, the installation is more convenient. The retaining wall 14 shown in the figure is composed of two pieces, which are respectively located on two opposite inner walls of the slide groove 11, and the middle part can be used for the guide wire to pass through.

[0049] like Figure 7 As shown, the side wall of the pulling conductive block 4 facing the positioning groove 22 is constructed as a guide wall 41, and the guide wall 41 can be constructed in the shape of an arc surface, a trapezoidal surface, a triangular surface, etc. Generally, the width of the guide wall gradually increases from the end to the middle of the pulling conductive block 4. The construction of the guide wall 41 has the function of indicating the direction on the one hand, and preventing reverse installation. On the other hand, it plays a role of guiding and directing in the process of the pulling conductive block 4 being installed into the positioning groove 22.

[0050] As shown in the figure, the traction conductive block 4 is constructed with a guide wire insertion port 42 for the guide wire to be inserted, and an electrode mounting hole 44 for the inner end of the electrode 5 to be installed. The guide wire insertion port 42 is communicated with the electrode mounting hole 44, and the electrode 5 is inserted into the electrode mounting hole 44 to press and fix the guide wire 6. When this structure is used for installation, the guide wire 6 is first inserted into the guide wire insertion port 42, and the traction conductive block 4 is embedded in the positioning groove 22. The electrode 5 is installed to achieve electrical connection on the one hand, and to press and fix the guide wire 6 on the other hand. Under this structure, not only is the installation more convenient and simple, but also the stability of the electrical connection between the electrode 5 and the guide wire 6 is ensured. In the case of Figure 8 In the solution, the bottom of the electrode mounting hole 44 is constructed with a groove 43 arranged along the extension direction of the guide wire insertion interface 42, and the guide wire 6 is partially embedded in the groove 43. Figure 8In the scheme shown, the groove is formed on the bottom surface of the motor mounting hole when the guide wire insertion interface is perforated and intersects with the motor mounting hole. The electrode 5 is threadedly connected in the electrode mounting hole 44 and its inner end positions the guide wire 6 in the groove 43. This technical solution adopts the groove 43 to partially embed the guide wire 6, that is, the radial part of the guide wire 6 is embedded, but not completely embedded. In this way, the guide wire 6 can be prevented from rotating with the electrode 5 during the process of screwing into the electrode 5. In addition, it can also prevent the electrode 5 from pressing the guide wire 6 too tightly, causing the guide wire 6 to be damaged by radial compression and affecting reliability and service life. It can also expand the contact area between the guide wire 6 and the copper block to ensure that it does not slip longitudinally after compression.

[0051] In a further solution, a spiral section is constructed on the inner end of the electrode 5. When the inner end of the electrode 5 is pressed against the positioning guide wire 6, the guide wire 6 presses against the cross section of the spiral section to interfere with the reversal of the electrode 5. The spiral section in this solution is not shown in the figure, and the spiral section is similar to the end face of the existing one-way anti-theft screw. During the screwing-in process of the spiral section, the guide wire 6 moves in the spiral direction relative to the spiral section, so as not to interfere with the screwing-in of the spiral section. However, during the screwing-out process, the cross section of the spiral section will press against the guide wire 6, which has a stop effect. The forced reversal also has the effect of cutting the guide wire 6, thereby preventing it from being disassembled after installation.

[0052] Embodiment 2:

[0053] The second object of the present invention is to provide a scalpel, comprising a scalpel handle and a catheter assembly connected to the scalpel handle. The scalpel handle is the scalpel handle as described in Example 1.

[0054] Embodiment 3:

[0055] This embodiment provides a method for installing the cutting knife handle structure described in Embodiment 1, comprising the following steps:

[0056] Step 1, press the connecting head 33 at the rear end of the connecting seat 3 into the through hole 13 at the front end of the core shaft part 10, and the multiple connecting petals 34 in the connecting head 33 are squeezed together to pass through the through hole 13; after the connecting head 33 passes through the through hole 13 and enters the slide groove 11, the connecting shaft 31 is inside the through hole 13, and the retaining ring part 32 abuts against the front end surface of the core shaft part 10. After the connecting head 33 extends into the slide groove 11, the connecting petals 34 pop open and abut against the inner wall of the slide groove 11.

[0057] Step 2: The middle part of the pull ring 2 is provided with a mounting hole 21 which penetrates the front and rear end surfaces thereof and matches the cross section of the core shaft portion 10, and a positioning groove 22 is formed on the front end opening of the mounting hole 21. The pull ring 2 is passed through the connecting seat 3 and the front end of the core shaft portion 10, so that it is slidably sleeved on the core shaft portion 10 of the ring frame 1.

[0058] Step 3, the guide wire 6 passes through the connecting seat 3 and is connected to the guide wire insertion port 42 of the traction conductive block 4, and is partially embedded in the groove 43 at the bottom of the electrode mounting hole 44; then the traction conductive block 4 is embedded in the slide groove 11 of the core shaft part 10.

[0059] Step 4, acting on the pulling conductive block 4 and / or the pull ring 2, so that the two move relatively close to each other, and finally the pulling conductive block 4 is embedded in the positioning groove 22. The specific implementation scheme includes:

[0060] 4.1, press the traction conductive block 4 embedded in the chute 11 against the retaining wall;

[0061] 4.2, push the pull ring 2 to move the pull ring 2 toward the pulling conductive block 4 until the pulling conductive block 4 is embedded in the positioning groove 22.

[0062] Step 5: The electrode 5 is screwed into the electrode mounting hole 44 on the traction conductive block 4 , and the inner end of the electrode 5 positions the guide wire 6 in the groove 43 .

[0063] The guide wire 6 traction assembly in the above-mentioned installation method includes a traction conductive block 4 and an electrode 5. During installation, the guide wire 6 is first passed through and connected to the traction conductive block 4, and then the traction conductive block 4 is embedded in the slide groove 11 from the notch 12, and then the traction conductive block 4 and / or the pull ring 2 are acted on to make the two move relatively close to each other, so that the traction conductive block 4 is embedded in the positioning groove 22. Finally, the upper electrode 5 is connected, and the guide block is fixed in the positioning groove 22 to complete the installation. This scheme constructs a positioning groove 22 on the side wall of the middle part of the pull ring 2, and the traction conductive block 4 is installed in the positioning groove 22 from the inside of the slide groove 11. In this way, the guide wire 6 and the traction conductive block 4 can be assembled first and then installed in the positioning groove 22 together. The structure is simple and the installation is convenient.

[0064] Furthermore, a retaining wall 14 is constructed on the inner wall of the slide groove 11 of the core shaft portion 10, and the retaining wall 14 can be used to support and limit the traction conductive block 4. The traction conductive block 4 integrally embedded in the slide groove 11 is fixed, and is installed in the positioning groove 22 by pushing the pull ring 2. Compared with the method of pushing the traction conductive block 4, the installation is more convenient. In addition, the side wall of the traction conductive block 4 facing the positioning groove 22 is constructed as a guide wall 41. The construction of the guide wall 41 has the function of indicating the direction on the one hand, preventing reverse installation; on the other hand, it plays a guiding and guiding role in the process of the traction conductive block 4 being installed into the positioning groove 22.

[0065] The groove 43 in the guide block is partially embedded with the guide wire 6, which means that the guide wire 6 is partially embedded in the radial direction, but not completely embedded; in this way, the guide wire 6 can be prevented from rotating with the electrode 5 during the process of screwing into the electrode 5. In addition, it can also prevent the electrode 5 from pressing the guide wire 6 too tightly, causing the guide wire 6 to be damaged by radial pressure and affecting reliability and service life. It can also expand the contact area between the guide wire 6 and the copper block to ensure that it does not slip longitudinally after being pressed. In addition, a spiral section is constructed on the inner end of the electrode 5. When the inner end of the electrode 5 presses against the positioning guide wire 6, the guide wire 6 presses against the cross section of the spiral section to interfere with the reversal of the electrode 5. The spiral section is similar to the end face of the existing one-way anti-theft screw. During the screwing-in process of the spiral section, the guide wire 6 moves in the spiral direction relative to the spiral section, so as not to interfere with the screwing-in of the spiral section. However, during the screwing-out process, the cross section of the spiral section will press against the guide wire 6, which has a stop effect. The forced reversal also has the effect of cutting the guide wire 6, thereby avoiding disassembly after installation.

[0066] In this embodiment, the expressions of steps and serial numbers such as "step 1, step 2" are only for the purpose of clear description and do not constitute a limitation on the order of the steps. For the scope of protection involving the sequence of steps, it is necessary to determine whether these steps must be implemented in a specific order in combination with the overall technical solution of the present invention.

[0067] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0068] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention.

Claims

1. A method for installing a cutting knife handle, characterized in that: The steps include: Step 1, inserting the connecting seat (3) into the front end through hole (13) of the core shaft portion (10) of the ring frame (1); Step 2: A mounting hole (21) is formed in the middle of the pull ring (2) and passes through the front and rear end surfaces thereof and matches the cross section of the core shaft portion (10); a positioning groove (22) is formed on the front end opening of the mounting hole (21); the pull ring (2) is passed through the connecting seat (3) and the front end of the core shaft portion (10) so as to be slidably sleeved on the core shaft portion (10) of the ring frame (1); Step 3, the guide wire (6) passes through the connecting seat (3) and is connected to the traction conductive block (4), and the traction conductive block (4) is embedded in the slide groove (11) of the core shaft part (10); Step 4, acting on the pulling conductive block (4) and / or the pull ring (2) to make the two move towards each other, and finally making the pulling conductive block (4) embed into the positioning groove (22); Step 5: The electrode (5) is connected to the traction conductive block (4), and the traction conductive block (4) is fixed to the pull ring (2).

2. The method for installing a cutting knife handle according to claim 1, characterized in that: The step 1 specifically comprises: pressing the connecting head (33) at the rear end of the connecting seat (3) into the front end through hole (13) of the core shaft portion (10), and the multiple connecting petals (34) in the connecting head (33) are squeezed together to pass through the through hole (13); after the connecting head (33) passes through the through hole (13) and enters the slide groove (11), the connecting shaft (31) is inside the through hole (13), the retaining ring portion (32) abuts against the front end surface of the core shaft portion (10), and after the connecting head (33) extends into the slide groove (11), the connecting petals (34) pop open and abut against the inner wall of the slide groove (11).

3. The method for installing a cutting knife handle according to claim 1, characterized in that: The step 4 specifically includes: 4.1, pressing the traction conductive block (4) embedded in the chute (11) against the retaining wall; 4.2, push the pull ring (2) to move the pull ring (2) toward the pulling conductive block (4) until the pulling conductive block (4) is embedded in the positioning groove (22).

4. The method for installing a cutting knife handle according to claim 3, characterized in that: The side wall of the traction conductive block (4) facing the positioning groove (22) is constructed as a guide wall (41) to guide the traction conductive block (4) to be embedded in the positioning groove (22).

5. The method for installing a cutting knife handle according to claim 1, characterized in that: Step 3 specifically includes: the guide wire (6) passes through the connection seat (3) and is connected to the inside of the guide wire insertion port (42) of the traction conductive block (4); Step 5 specifically includes: after the electrode (5) is installed in the electrode installation hole (44), the guide wire (6) is pressed and fixed.

6. A method for installing a cutting knife handle according to claim 5, characterized in that: Step 3 specifically includes: the guide wire (6) is inserted into the guide wire insertion port (42), and partially embedded in the groove (43) at the bottom of the electrode mounting hole (44); Step 5 specifically includes: the electrode (5) is threaded into the electrode mounting hole (44), and the inner end of the electrode (5) positions the guide wire (6) in the groove (43).

7. The method for installing a cutting knife handle according to claim 6, characterized in that: A spiral section is constructed on the inner end of the electrode (5). When the inner end of the electrode (5) is pressed against the positioning guide wire (6), the guide wire (6) presses against the cross section of the spiral section to interfere with the reversal of the electrode (5).

8. The method for installing a cutting knife handle according to claim 1, characterized in that: The middle part of the pull ring (2) is provided with a mounting hole (21) penetrating the front and rear end surfaces thereof and matching the cross section of the core shaft portion (10); a positioning groove (22) is formed on the front end opening of the mounting hole (21); the pull ring (2) is sleeved onto the core shaft portion (10) from the front end portion of the core shaft portion (10).

9. A cutting knife handle, characterized in that: The invention is prepared by the installation method as described in any one of claims 1 to 8.

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