Abrasive drill handle and abrasive drill device

Abstract

The utility model relates to the technical field of medical apparatus and instruments, in particular to an abrasive drill handle and an abrasive drill device, which comprises a shell assembly, an abrasive drill handle and an abrasive drill device, the shell assembly is provided with a containing cavity, and the front end of the shell assembly is provided with an opening communicated with the outside of the shell assembly and the containing cavity; the power output assembly is arranged in the containing cavity, the front end of the power output assembly is exposed out of the opening, and the power output assembly is used for being in transmission connection with a cutter; and the tool recognition assembly is detachably arranged at the front end of the power output assembly, the tool recognition assembly is provided with a tool recognition channel allowing a tool to penetrate through, and the tool recognition assembly is used for recognizing an electronic tag on the tool in the tool recognition channel. Therefore, when the tool identification assembly is replaced, the tool identification assembly can be directly detached from the front end of the abrasive drill handle under the condition that a large number of parts are not detached, replacement is convenient, the replacement efficiency is improved, and the abrasive drill handle is convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a drill handle and a drill device. Background Technology

[0002] The drill handle with tool recognition function is equipped with a recognition coil. When a tool with an electronic tag is installed in the corresponding drill handle, the recognition coil can read the tool information in the electronic tag and then transmit the tool information to the host, realizing automatic tool recognition.

[0003] The identification coil may require maintenance or replacement due to aging or damage during the use of a drill handle. However, existing drill handles require the disassembly of many internal parts to maintain or replace the identification coil, which is inconvenient. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a drill handle and a drill device to solve the problem of inconvenient replacement of identification coils in the prior art.

[0005] To achieve the above and other related objectives, this utility model provides a grinding drill handle, adapted to a cutting tool, comprising:

[0006] A housing assembly having a receiving cavity, and the front end of the housing assembly having an opening communicating with the outside of the housing assembly and the receiving cavity;

[0007] A power output assembly is disposed within the receiving cavity, with its front end exposed outside the opening. The power output assembly is used to connect with the tool drive.

[0008] A tool identification component is detachably disposed at the front end of the power output component. The tool identification component has a tool identification channel for a tool to pass through, and the tool identification component is used to identify an electronic tag on a tool within the tool identification channel.

[0009] Optionally, the tool identification component includes:

[0010] A coil sleeve is detachably connected to the front end of the power output assembly, and the hollow channel of the coil sleeve forms the tool identification channel;

[0011] Identify the coil and wrap it around the outer wall of the coil sleeve.

[0012] Optionally, the power output assembly includes an output shaft and a mounting sleeve relatively fixed within the housing assembly. The output shaft is rotatably disposed within the mounting sleeve along its own axis. The front end of the mounting sleeve is exposed at the opening. The coil sleeve is detachably connected to the front end of the mounting sleeve.

[0013] Optionally, the tool identification component further includes a mating sleeve, through which the coil sleeve is detachably connected to the mounting sleeve.

[0014] Optionally, the mating sleeve is threaded or snapped into the mounting sleeve.

[0015] Optionally, the mounting sleeve is provided with an axial limiting surface, the coil sleeve is inserted into the mounting sleeve, the rear end of the docking sleeve is detachably sleeved on the front end outer wall of the mounting sleeve, and the front end of the docking sleeve is provided with a pressing part for pressing the coil sleeve against the axial limiting surface.

[0016] Optionally, the coil sleeve includes a coil mounting section and a positioning section connected sequentially from front to back. The identification coil is wound around the outer wall of the coil mounting section, the positioning section blocks one end of the identification coil, and the clamping part blocks the other end of the identification coil.

[0017] Optionally, an anti-rotation structure is provided between the mounting sleeve and the coil sleeve.

[0018] Optionally, the front end of the drill handle is detachably connected to a support attachment, the support attachment having a support channel;

[0019] When the support accessory is installed at the front end of the housing assembly, the support channel is coaxially connected to the front end of the tool identification channel.

[0020] This utility model also provides a grinding device, which includes a matching cutting tool and a grinding handle, wherein the grinding handle is the grinding handle as described above.

[0021] As described above, in the drill handle of this invention, the power output component is disposed within the receiving cavity of the housing component, and the front end of the power output component is exposed at the front opening of the housing component. By detachably mounting the tool identification component at the front end of the power output component, the tool identification component can also be exposed at the front opening of the housing component. Therefore, when replacing the tool identification component, it can be directly removed from the front end of the drill handle without disassembling a large number of parts, making disassembly and assembly convenient and facilitating more efficient and convenient maintenance or replacement of the tool identification component. Attached Figure Description

[0022] Figure 1This is a schematic diagram of the internal structure of an embodiment of the present utility model;

[0023] Figure 2 for Figure 1 Enlarged view of section A in the image;

[0024] Figure 3 This is a schematic diagram of the assembly of the coil sleeve and the identification coil according to an embodiment of the present invention;

[0025] Figure 4 for Figure 2 A partial structural diagram of a drill handle with a support attachment connected to the front end;

[0026] Figure 5 This is a front view of the drill handle according to an embodiment of the present invention.

[0027] Part Number Explanation

[0028] 1-Housing assembly; 2-Power output assembly; 21-Output shaft; 22-Mounting sleeve; 221-First jaw; 222-Axial limiting surface; 223-Circumferential limiting part; 3-Tool identification assembly; 31-Coil sleeve; 311-Tool identification channel; 312-Flat part; 313-Coil mounting section; 314-Positioning section; 32-Identification coil; 33-Matching sleeve; 331-Clamping part; 332-Second jaw; 4-Tool; 41-Electronic tag; 5-Support accessory; 6-Drill handle. Detailed Implementation

[0029] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0030] It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of this utility model. Therefore, the drawings only show components related to this utility model and are not drawn according to the actual number, shape, and size of the components in implementation. In actual implementation, the form, quantity, and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex. The structures, proportions, sizes, etc., shown in the accompanying drawings are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in this specification are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0031] In the description of the following embodiments, "axial direction" refers to the axial direction of the housing assembly 1, which is also the axial direction of the entire drill handle; in the description of the following embodiments, the directional terms "front" and "rear" are relative directions, with "front" referring to the direction along the axial direction that is closer to the drill bit 4 and "rear" referring to the direction along the axial direction that is farther away from the drill bit 4.

[0032] Please see Figures 1 to 5 This embodiment provides a grinding handle 6, adapted to the cutting tool 4, including:

[0033] The housing assembly 1 has a receiving cavity, and the front end of the housing assembly 1 is provided with an opening communicating with the outside of the housing assembly 1 and the receiving cavity;

[0034] The power output assembly 2 is disposed in the receiving cavity, and the front end of the power output assembly 2 is exposed in the opening. The power output assembly 2 is used to drive the tool 4 to rotate along its own axis.

[0035] The tool identification component 3 is detachably disposed at the front end of the power output component 2. The tool identification component 3 has a tool identification channel 311 through which the tool 4 passes. The tool identification component 3 is used to identify the electronic tag 41 on the tool 4 within the tool identification channel 311.

[0036] The aforementioned "outer shell assembly 1" can refer to the outermost part of the entire drill handle that the operator may directly contact. Specifically, the outer shell assembly 1 can be a single part or it can be constructed from multiple parts. When the outer shell assembly 1 is composed of multiple parts, the components in the outer shell assembly 1 can be relatively fixed, and there can also be parts in the outer shell assembly 1 that can move or rotate relative to other parts in the outer shell assembly 1.

[0037] Figure 1 In the example, the housing assembly 1 has a receiving cavity with an open front end along the axial direction of the housing assembly 1. Of course, in actual implementation, the receiving cavity may only have an open front end, or both ends of the receiving cavity may be open; that is, whether the rear end of the receiving cavity is open or not will not affect the implementation of this application. When implementing the condition that "the front end of the power output assembly 2 is exposed at the front opening of the receiving cavity," the front end of the power output assembly 2 can extend beyond the front opening of the receiving cavity; alternatively, the front end of the power output assembly 2 can be positioned at the front opening of the receiving cavity but not extend beyond it.

[0038] For details on how the power output component 2 achieves "connection to the tool drive and driving the tool to rotate along its own axis", please refer to [reference needed]. Figure 1 , Figure 4 For example, the power output assembly 2 includes an output shaft 21 with a tool mounting channel. A tool identification channel 311 is located at the front end of the tool mounting channel. The tool 4 is inserted into the tool mounting channel through the tool identification channel 311 and is connected to the output shaft 21 for transmission, so that the power output by the output shaft 21 can be transmitted to the tool 4 to drive the tool 4 to rotate along its own axis. Of course, in actual implementation, the configuration of the power output assembly 2 is not limited to this method. Any power output assembly in the prior art can be used, as long as it can connect to and drive the tool 4.

[0039] There are several ways to implement the tool identification component 3 being detachably mounted on the front end of the power output component 2. For example, the tool identification component 3 can be detachably mounted inside the front end of the power output component 2 through snap-fit ​​connection, threaded connection, or other detachable connection methods.

[0040] When installing the tool 4, since the tool identification component 3 has a tool identification channel 311 that runs through its axis, the tool 4 passes through the tool identification channel 311 and connects to the power output component 2. The corresponding tool 4 has an electronic tag 41 on its outer wall. The tool identification component 3 obtains the tool information stored in the electronic tag 41 by sensing the electronic tag 41.

[0041] In this embodiment, the power output component 2 is disposed within the receiving cavity of the housing component 1, and the front end of the power output component 2 is exposed at the front opening of the housing component 1. By detachably disposing of the tool identification component 3 at the front end of the power output component 2, the tool identification component 3 can also be exposed at the front opening of the housing component 1. Therefore, when replacing the tool identification component 3, it can be directly removed from the front end of the drill handle 6 without disassembling a large number of parts, making disassembly and assembly convenient and facilitating more efficient and convenient maintenance or replacement of the tool identification component 3.

[0042] In one implementation, such as Figure 3 As shown, the tool recognition component 3 includes:

[0043] The coil sleeve 31 is detachably connected to the front end of the power output assembly 2, and the hollow channel of the coil sleeve 31 forms a tool recognition channel 311.

[0044] Identification coil 32 is wound around the outer wall of coil sleeve 31.

[0045] It should be noted that the coil sleeve 31 can be directly and detachably connected to the front end of the power output assembly 2, or it can be detachably connected to the front end of the power output assembly 2 through other structures. The coil sleeve 31 has a hollow channel that runs through the axis, and the hollow channel forms a tool recognition channel 311.

[0046] The aforementioned "identification coil 32" is used to read the tool information of the tool 4 inserted in the tool identification channel 311. Typically, the identification coil 32 is connected to a cable inside the drill handle 6. The cable passes through the housing assembly 1 and then to the host interface of the drill grinding device, transmitting the acquired tool information to the host. After acquiring the tool information, the host can control the drill handle to operate based on that information. For example, it can automatically match the most suitable output speed to the inserted tool 4, eliminating the need for manual parameter setting by the user.

[0047] When the identification coil 32 is wound around the outer wall of the coil sleeve 31, it can be spirally wound around the outer wall of the coil sleeve 31 at a certain pitch. Since the identification coil is positioned on the coil sleeve 31 by winding, the coil sleeve 31 and the identification coil 32 are relatively independent. When replacement is needed, the coil sleeve 31 or the identification coil 32 can be easily replaced separately. The pitch of the identification coil 32 can be set according to the specific requirements of the drill handle 6.

[0048] In one implementation, such as Figure 1 and Figure 4As shown, the power output assembly 2 includes an output shaft 21 and a mounting sleeve 22 that is relatively fixed inside the housing assembly 1. The output shaft 21 is rotatably disposed inside the mounting sleeve 22 along its own axis. The mounting sleeve 22 is exposed at the opening at the front end of the housing assembly 1. The coil sleeve 31 is detachably connected to the front end of the mounting sleeve 22.

[0049] For ease of understanding, see [link to relevant documentation]. Figure 1 , Figure 4 In the illustrated embodiment, the mounting sleeve 22 is fixedly fitted inside the receiving cavity of the housing assembly 1. The mounting sleeve 22 and the housing assembly 1 cannot move or rotate relative to each other axially. The mounting sleeve 22 extends axially, and the rear end of the output shaft 21 passes through the mounting sleeve 22. The rear end of the output shaft 21 is connected to a motor located inside the rear end of the drill handle 6. The motor can drive the output shaft 21 to rotate along its own axis.

[0050] It is worth mentioning that the “coil sleeve 31 is detachably connected to the front end of the mounting sleeve 22” can be implemented in two ways: direct detachable connection and detachable connection through other components.

[0051] In this structure, since the mounting sleeve 22 is exposed at the opening at the front end of the housing assembly 1, the coil sleeve 31 is detachably connected to the front end of the mounting sleeve 22. This allows for easy assembly and disassembly of the identification coil by simply removing and installing the coil sleeve 31 relative to the mounting sleeve 22 when assembling or disassembling the tool identification assembly 3, facilitating maintenance and replacement of the identification coil. In one embodiment, such as Figure 1 , Figure 2 and Figure 4 As shown, the tool identification component 3 also includes a docking sleeve 33, and the coil sleeve 31 is indirectly and detachably connected to the mounting sleeve 22 through the docking sleeve 33.

[0052] Optional, see Figure 1 The front end of the coil sleeve 31 is fitted inside the docking sleeve 33. The docking sleeve 33 can protect the coil sleeve 31 and the identification coil 32 on the coil sleeve 31, preventing the tool 4 from failing to be identified due to damage to the tool identification component 3.

[0053] In some implementations, the mating sleeve 33 is threaded or snapped into the mounting sleeve 22.

[0054] The coil sleeve 31, which is fitted inside the docking sleeve 33, can only be removed after the docking sleeve 33 is removed. The threaded connection or snap-fit ​​between the docking sleeve 33 and the mounting sleeve 22 makes it easy to install and remove the docking sleeve 33 from the mounting sleeve 22, thereby facilitating the replacement of the coil sleeve 31.

[0055] The aforementioned "threaded or snap-fit ​​connection between the mating sleeve 33 and the mounting sleeve 22" can be implemented in several possible ways:

[0056] In one implementation, such as Figure 1 and Figure 2 As shown, the outer wall of the mounting sleeve 22 is provided with a first claw 221 extending forward and facing upward, and the outer wall of the mating sleeve 33 is provided with a second claw 332 extending backward and facing downward. Through the mutual cooperation between the first claw 221 and the second claw 332, the mounting sleeve 22 and the mating sleeve 33 are locked together in the axial direction.

[0057] In another possible implementation (not shown in the figure), a first claw groove is provided on the outer wall of the mating sleeve 33, and a second claw groove is provided on the outer wall of the mounting sleeve 22. The first claw 221 is engaged in the first claw groove, and the second claw 332 is engaged in the second claw groove, so as to lock the mating sleeve 33 and the mounting sleeve 22 together in the axial and radial directions.

[0058] In one implementation, such as Figure 1 , Figure 2 As shown, the mounting sleeve 22 is provided with an axial limiting surface 222. The coil sleeve 31 is inserted into the mounting sleeve 22. The rear end of the mating sleeve 33 is detachably sleeved on the front end outer wall of the mounting sleeve 22. The front end of the mating sleeve 33 is provided with a pressing part 331 for pressing the coil sleeve 31 on the axial limiting surface 222.

[0059] See Figure 1 , Figure 2 The rear end of the coil sleeve 31 is fitted inside the front end of the mounting sleeve 22, and the rear end of the mating sleeve 33 is fitted outside the front end of the mounting sleeve 22. An axial limiting surface 222 is provided on the inner wall of the mounting sleeve 22, and this axial limiting surface 222 is perpendicular to the inner wall of the mounting sleeve 22. A pressing part 331 is provided on the inner wall of the front end of the mating sleeve 33. The pressing part 331 blocks the front end face of the coil sleeve 31 along the axial direction, and the axial limiting surface 222 blocks the rear end face of the coil sleeve 31 along the axial direction. Both the axial limiting surface 222 and the pressing part 331 can be stepped structures.

[0060] This structure, through the clamping part 331 and the axial limiting surface 222, can limit the coil sleeve 31 along the axial direction, preventing the coil sleeve 31 from moving away from the electronic tag 41 on the tool 4 and exceeding the recognition range, thereby improving the reliability of the recognition of the tool 4.

[0061] Optional, such as Figure 3 As shown, the coil sleeve 31 includes a coil mounting section 313 and a positioning section 314 connected sequentially from front to back. The identification coil 32 is wound around the outer wall of the coil mounting section 313, the positioning section 314 blocks one end of the identification coil 32, and the clamping part 331 blocks the other end of the identification coil 32. At this time, the identification coil 32 being wound around the outer wall of the coil sleeve 31 can be understood as the identification coil being wound around the outer wall of the mounting section 313.

[0062] See Figure 1 , Figure 3 The coil sleeve 31 includes a coil mounting section 313 and a positioning section 314 arranged axially, with the coil mounting section 313 positioned axially before the positioning section 314. The identification coil 32 is spirally wound around the outer wall of the coil mounting section 313 with a certain pitch. Specifically, the outer wall of the coil mounting section 313 may be provided with a threaded groove to accommodate the identification coil 32, thereby axially limiting the identification coil 32. A clamping part 331 stops at the front end of the identification coil 32 along the axial direction, and the positioning section 314 protrudes radially from the coil sleeve 31, stopping at the rear end of the identification coil 32 along the axial direction.

[0063] In this method, the identification coil 32 is axially limited by the positioning section 314 and the clamping part 331, preventing the identification coil 32 from moving away from the electronic tag 41 on the tool 4 and exceeding the identification range, which helps to improve the reliability of the identification of the tool 4.

[0064] In one embodiment, an anti-rotation structure is provided between the mounting sleeve 22 and the coil sleeve 31.

[0065] If the coil sleeve 31 rotates, the identification coil 32 wrapped around its outer wall will become entangled, affecting the identification effect of the tool 4 and thus hindering the normal use of the drill handle 6. By setting an anti-rotation structure, the coil sleeve 31 can be prevented from rotating relative to the mounting sleeve 22, thus avoiding the impact on the use of the drill handle 6 due to the entanglement of the identification coil 32.

[0066] The aforementioned "anti-rotation structure is provided between the mounting sleeve 22 and the coil sleeve 31" can be implemented in several possible ways:

[0067] In one implementation, such as Figure 1 As shown, the outer wall of the coil sleeve 31 is provided with a flat portion 312, and the inner wall of the front end of the mounting sleeve 22 is provided with a circumferential limiting portion 223. The circumferential limiting portion 223 and the flat portion 312 are arranged opposite to each other and cooperate with each other to realize the anti-rotation of the coil sleeve 31.

[0068] Specifically, the circumferential limiting portion 223 includes at least one set of protrusions disposed opposite to the inner wall of the mounting sleeve 22. The lower edge of the protrusion is lower than the upper edge of the vertical surface of the flat portion 312, so that the protrusion can abut against the vertical surface of the flat portion 312. The surface where the protrusion abuts against the flat portion 312 is the axial limiting surface 222. This limits the coil sleeve 31 to move backward in the axial direction, preventing it from moving backward in the axial direction. The front end surface of the protrusion abuts against the flat portion 312, which also limits the coil sleeve 31 circumferentially, preventing the coil sleeve 31 from rotating relative to the mounting sleeve 22.

[0069] In another possible implementation, the outer wall of the coil sleeve 31 is provided with a limiting groove, and the inner wall of the front end of the mounting sleeve 22 is provided with a circumferential limiting part 223; or, the outer wall of the coil sleeve 31 is provided with a circumferential limiting part 223, and the inner wall of the front end of the mounting sleeve 22 is provided with a limiting groove. The circumferential limiting part 223 is fitted into the limiting groove, preventing the coil sleeve 31 from axially moving and circumferentially rotating relative to the mounting sleeve 22, thereby limiting the coil sleeve 31 axially and circumferentially.

[0070] Specifically, the circumferential limiting part 223 is a protrusion protruding from the outer wall of the coil sleeve 31 or the inner wall of the mounting sleeve 22. The number of limiting grooves and circumferential limiting parts 223 can be set to multiple, and they are arranged circumferentially along the inner wall of the mounting sleeve 22 or the outer wall of the coil sleeve 31.

[0071] In one implementation, such as Figure 4 As shown, the front end of the drill handle 6 is detachably connected to a support attachment 5, and the support attachment 5 has a support channel;

[0072] When the support accessory 5 is installed at the front end of the housing assembly 1, the support channel is coaxially connected to the front end of the tool recognition channel 311.

[0073] The front end of the drill handle 6 and the support accessory 5 can be detachably connected by means of snap-fit, threaded connection, etc., and the support accessory 5 has a support channel that runs through its axis.

[0074] For the drill handle 6 equipped with support accessory 5, when it is necessary to maintain or replace the tool identification component 3, it is only necessary to remove the support accessory 5 to directly disassemble and install the tool identification component 3, which is still convenient for maintenance.

[0075] This embodiment also provides a grinding device, which includes a compatible cutting tool 4 and a grinding handle 6, the grinding handle 6 being the grinding handle 6 described above. The rear end of the cutting tool 4 is inserted into the output shaft 21 from the front end of the output shaft 21, the output shaft 21 is connected to the cutting tool 4 in a transmission manner, and the output shaft 21 can drive the cutting tool 4 to rotate along its own axis.

[0076] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A drill handle, adapted to a cutting tool, characterized in that, include: A housing assembly having a receiving cavity, and the front end of the housing assembly having an opening communicating with the outside of the housing assembly and the receiving cavity; A power output assembly is disposed within the receiving cavity, with its front end exposed outside the opening. The power output assembly is used to connect with the tool drive. A tool identification component is detachably disposed at the front end of the power output component. The tool identification component has a tool identification channel for a tool to pass through, and the tool identification component is used to identify an electronic tag on a tool within the tool identification channel.

2. The drill handle according to claim 1, characterized in that, The tool identification component includes: A coil sleeve is detachably connected to the front end of the power output assembly, and the hollow channel of the coil sleeve forms the tool identification channel; Identify the coil and wrap it around the outer wall of the coil sleeve.

3. The drill handle according to claim 2, characterized in that, The power output assembly includes an output shaft and a mounting sleeve that is relatively fixed within the housing assembly. The output shaft is rotatably disposed within the mounting sleeve along its own axis. The front end of the mounting sleeve is exposed at the opening. The coil sleeve is detachably connected to the front end of the mounting sleeve.

4. The drill handle according to claim 3, characterized in that, The tool identification component also includes a docking sleeve, through which the coil sleeve is indirectly and detachably connected to the mounting sleeve.

5. The drill handle according to claim 4, characterized in that, The mating sleeve is threaded or snapped into the mounting sleeve.

6. The drill handle according to claim 4, characterized in that, The mounting sleeve is provided with an axial limiting surface. The coil sleeve is inserted into the mounting sleeve. The rear end of the docking sleeve is detachably sleeved on the front end outer wall of the mounting sleeve. The front end of the docking sleeve is provided with a pressing part for pressing the coil sleeve against the axial limiting surface.

7. The drill handle according to claim 6, characterized in that, The coil sleeve includes a coil mounting section and a positioning section connected sequentially from front to back. The identification coil is wound around the outer wall of the coil mounting section, the positioning section blocks one end of the identification coil, and the clamping part blocks the other end of the identification coil.

8. The drill handle according to claim 3, characterized in that, An anti-rotation structure is provided between the mounting sleeve and the coil sleeve.

9. The drill handle according to any one of claims 1-8, characterized in that, The front end of the drill handle is detachably connected to a support accessory, which has a support channel; When the support accessory is installed at the front end of the housing assembly, the support channel is coaxially connected to the front end of the tool identification channel.

10. A grinding and drilling device, characterized in that, The grinding device includes a compatible cutting tool and a grinding handle, wherein the grinding handle is the grinding handle as described in any one of claims 1-9.

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