Planing handpiece

Abstract

The invention relates to a planing handpiece. The planing handpiece comprises a fixed seat, a rotating mechanism and a locking structure, a first assembly hole is formed in the fixed seat; the rotating mechanism is inserted into the first assembly hole and is provided with a second assembly hole in which the cutter body is inserted, and the rotating mechanism is detachably connected with the cutter body; the locking structure is movably connected to the fixed seat and has a locking position and an unlocking position; one of the locking structure and the rotating mechanism is provided with a positioning part, the other one of the locking structure and the rotating mechanism is provided with a positioning bulge, and at least one of the positioning bulges and the limiting grooves is provided with a plurality of positioning bulges and limiting grooves which are arranged along the circumferential direction of the rotating mechanism; at the locking position, the positioning bulge is inserted into the limiting groove; and at the unlocking position, the positioning bulge is separated from the limiting groove to unlock. The rotating mechanism can clamp the cutter body and drive the cutter body to rotate at the same time, the locking structure locks the rotating mechanism in the mode that the positioning protrusion is matched with the limiting groove, the structure is simple, the number of parts involved in the whole is small, matching is few, the machining precision is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a planing handpiece. Background Art

[0002] At present, the planing tool used in surgery is a common one in ENT department, and the doctor uses the planing tool to remove the lesion. In the actual application environment, the cutting point of the non-linear planing tool is set at a certain angle to the axis of the tool. The non-linear planing tool has the need to adjust the angle and needs to be rotated, but generally the doctor will only control the forward and backward movement of the planing tool during the operation, and keep the wrist relatively still to avoid causing harm to the patient during the movement. This makes it impossible to adjust the planing tool when cutting the lesion in a specific position, resulting in the inability to complete the operation efficiently. The current mainstream solution of the planing tool rotation mechanism is: there is a pair of bevel gears at the tail of the planing tool holder, and the planing tool is rotated by driving the bevel gears. Among them, there is also a crank mechanism at the lower end of the planing tool holder to cooperate with the bevel gear, and the bevel gear can be locked after being turned.

[0003] However, the bevel gear needs to be welded with the planing tool holder, which involves many parts and corresponding matching dimensions, and has high precision requirements, which affects the processing efficiency. Summary of the invention

[0004] Based on this, it is necessary to provide a planing mobile phone to address the above technical problems, so as to realize the rotation of the planing tool while reducing the parts matching, thereby reducing the processing accuracy requirements and promoting efficient production.

[0005] The planing mobile phone comprises a tool body, a fixing seat, a rotating mechanism and a locking structure; the fixing seat is provided with a first assembly hole; the rotating mechanism is inserted in the first assembly hole and is provided with a second assembly hole in which the tool body is inserted, and the rotating mechanism is detachably connected to the tool body; the locking structure is movably connected to the fixing seat and has a locking position and an unlocking position; one of the locking structure and the rotating mechanism is provided with a limiting groove, and the other is provided with a positioning protrusion, at least one of the positioning protrusion and the limiting groove is provided with a plurality of and is arranged along the circumference of the rotating mechanism; in the locking position, the positioning protrusion is inserted in the limiting groove to lock the rotating mechanism to the fixing seat; in the unlocking position, the positioning protrusion is disengaged from the limiting groove to release the lock, and the rotating mechanism can rotate relative to the fixing seat around its own axis.

[0006] It is understandable that the fixing seat is provided with a first assembly hole to facilitate the installation of the rotating mechanism and support its rotation. The rotating mechanism is detachably connected to the tool body to facilitate the selection of different types of tool bodies according to actual conditions, and can drive the tool body to rotate, so as to select the appropriate angle of the tool body for cutting. The locking structure and the rotating mechanism achieve the locking of the rotation of the rotating mechanism through the cooperation of the limit groove and the positioning protrusion. The structure is simple and easy to process and produce. The entire planing mobile phone only needs the rotating mechanism to cooperate with the tool body, which plays the role of clamping the tool body while driving the tool body to rotate, and the locking structure used to lock the rotating mechanism has a simple structure. It does not need to be driven by an external transmission structure to rotate, nor does it need to be correspondingly provided with an additional transmission structure for locking. There are few parts and related cooperation involved, and the precision required for processing is low. The processing is simple, which is conducive to improving processing efficiency.

[0007] In one embodiment, the rotating mechanism has an axial direction, the positioning protrusion and the limiting groove are relatively arranged along the axial direction, the locking structure is slidably connected to the fixing seat, and can reciprocate along the axial direction to switch the locking position and the unlocking position.

[0008] It can be understood that, with such an arrangement, the locking structure can reciprocate along its own axial direction to change the position state of the positioning protrusion relative to the limiting groove, and the operation is simple.

[0009] In one of the embodiments, one of the locking structure and the fixing seat is provided with a connecting arm, and the other is provided with a limiting hole, the connecting arm is passed through the limiting hole and can move along the axial direction in the limiting hole.

[0010] It can be understood that the limiting hole and the connecting arm can form a limit along the radial direction of the limiting hole, that is, limit the radial movement of the locking structure relative to the fixed seat, so that the locking structure can only move axially along the rotating mechanism relative to the fixed seat, thereby limiting and guiding the movement of the locking structure.

[0011] In one embodiment, the planing mobile phone also includes a first limiting assembly connected between the fixed base and the locking structure; the first limiting assembly includes a first limiting column and a positioning groove, one of which is provided on the locking structure and the other is provided on the fixed base; there are at least two positioning grooves, which are arranged at intervals along the axial direction of the rotating mechanism, and the first limiting column can be plugged into and matched with at least two of the positioning grooves to lock the locking structure to the fixed base.

[0012] It is understandable that the first limit assembly can lock the axial movement of the locking structure. Specifically, the first limit column is inserted into the positioning groove, and the positioning groove and the first limit column are limited to form a lock, which has a simple structure and is easy to operate. The provision of at least two positioning grooves makes the locking of the axial movement of the locking structure more flexible, and facilitates the locking structure to switch the locking position and the unlocking position.

[0013] In one embodiment, the fixing seat or the locking structure is provided with a receiving groove, and at least a portion of the first limiting column is inserted into the receiving groove; the first limiting assembly also includes a first elastic member, which is connected between the first limiting column and the groove wall of the receiving groove, and is used to apply a force to the first limiting column to move out of the receiving groove.

[0014] It can be understood that the setting of the accommodating groove is conducive to the installation of the first limiting column and the first elastic member, and to guiding and limiting the first elastic member; the first elastic member has a force on the first limiting column to move out of the accommodating groove, which is conducive to the resetting of the first limiting column, so that the first limiting column can pop out of the accommodating groove and cooperate with the limiting groove.

[0015] In one embodiment, the planing mobile phone also includes a second limiting assembly connected between the rotating mechanism and the fixed seat; the second limiting assembly includes a second limiting column and an arc groove, one of which is arranged on the rotating mechanism, and the other is arranged on the fixed seat, the arc groove extends along the circumference of the rotating mechanism, and a portion of the second limiting column is inserted into the arc groove for axially limiting the rotating mechanism.

[0016] It can be understood that a limiting fit can be formed between the second limiting column and the arc groove along the axial direction of the rotating mechanism, so that the rotating mechanism can be fixedly assembled in the fixed seat along the axial direction; at the same time, the setting of the arc groove provides an avoidance space for the circumferential rotation of the second limiting column to avoid interfering with the rotation of the rotating mechanism.

[0017] In one embodiment, the arc groove is disposed on the fixing seat and is connected to the first assembly hole.

[0018] It is understandable that, in this configuration, the second limiting column is disposed on the rotating mechanism, which facilitates the smooth assembly of the rotating mechanism into the first assembly hole and avoids interference caused by the second limiting column being disposed on the fixing seat during the assembly of the rotating mechanism into the first assembly hole.

[0019] In one embodiment, the fixing seat is constructed with a sinking space which is recessed radially inward, the locking structure is installed in the sinking space, and the locking structure is provided with a toggle end protruding from one side of the fixing seat in the radial direction away from the fixing seat.

[0020] It is understandable that the locking structure is installed in the sinking space to prevent the locking structure from protruding relative to the fixed seat along the radial direction of the rotating mechanism, reduce the occupied space, form a certain protection effect on the locking structure, and also make the entire planing mobile phone more beautiful. The setting of the toggle end is conducive to manual contact and operation, which is more labor-saving.

[0021] In one embodiment, the rotating mechanism includes a rotating shaft, a rotating sleeve and a first locking piece; the rotating shaft is inserted into the first assembly hole and is rotatably connected to the fixed seat, the rotating sleeve is sleeved on the rotating shaft and can reciprocate along the axis of the rotating shaft, a retreat space is formed between the rotating sleeve and the rotating shaft, the rotating shaft is configured with a locking hole, and the locking hole can be connected to the retreat space; the first locking piece is installed in the locking hole and is configured to enter or exit the retreat space in response to the movement of the rotating sleeve, the first locking piece can exit from the retreat space and partially extend out of the locking hole to lock the tool body.

[0022] It can be understood that the setting of the rotating shaft facilitates the assembly of the tool body, and cooperates with the rotating sleeve and the first locking member to facilitate locking the tool body. Specifically, the rotating sleeve and the rotating shaft form a retreat space, so that the first locking member can enter the retreat space from the locking hole to cancel the lock on the tool body; the position state of the first locking member relative to the retreat space can be changed by moving the rotating sleeve to switch the locking state of the tool body, and the operation is simple.

[0023] In one embodiment, the rotating mechanism further includes a second elastic member, which is connected between the rotating sleeve and the fixed seat and is used to drive the rotating sleeve to move toward a side away from the fixed seat so that the first locking member withdraws from the retreat space.

[0024] It can be understood that the second elastic member exerts a force on the rotating sleeve to move away from the fixed seat, which is beneficial to the resetting of the rotating sleeve after the movement.

[0025] In one embodiment, the rotating mechanism further includes a stop structure, which is sleeved on the rotating shaft and is used to limit the axial movement of the rotating sleeve.

[0026] It can be understood that the stop structure can limit the axial movement of the rotating sleeve to prevent the rotating sleeve from axially separating from the rotating shaft.

[0027] In one embodiment, the rotating mechanism also includes a transmission member arranged between the rotating sleeve and the rotating shaft; the rotating shaft is configured with a transmission groove, and the transmission groove is equipped with the transmission member; along the circumference of the rotating shaft, the transmission member is limitedly engaged with the groove wall of the transmission groove; the rotating sleeve is configured with a mating groove, and the mating groove extends along the axial direction of the rotating shaft; along the radial direction of the rotating shaft, the transmission member is crimped between the groove wall of the mating groove and the groove wall of the transmission groove.

[0028] It can be understood that the transmission member and the transmission groove produce a limited fit along the circumferential direction of the rotating shaft, and the power of the rotating sleeve can be transmitted to the rotating shaft through the transmission member, thereby driving the rotating shaft to rotate synchronously, with a simple structure and convenient operation. When assembling the tool body, since the rotating sleeve needs to move axially relative to the rotating shaft, the setting of the matching groove allows the transmission member to be located in the matching groove when the rotating sleeve moves without interfering with the movement of the rotating sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 A schematic diagram of a portion of the structure of the planing mobile phone provided for this application;

[0031] Figure 2 A partial cross-sectional view of the planing mobile provided for this application;

[0032] Figure 3 A partial cross-sectional view of the planing mobile phone provided in the present application when locking the tool body;

[0033] Figure 4 A partial cross-sectional view of the planing mobile phone provided in this application when unlocking the tool body;

[0034] Figure 5 A schematic diagram of the locking structure in the planing mobile phone provided in this application;

[0035] Figure 6 This is a schematic diagram of the structure of the rotating shaft in the planing mobile phone provided in this application.

[0036] Description of reference numerals: 100, planing mobile phone; 10, fixing seat; 11, first assembly hole; 12, accommodating groove; 13, sinking space; 14, connecting arm; 20, rotating mechanism; 201, retreat space; 21, rotating axis; 211, second assembly hole; 212, locking hole; 213, transmission groove; 214, limiting groove; 215, first assembly groove; 22, rotating sleeve; 221, first sleeve body; 222, second Sleeve body; 2201, matching groove; 23, first locking member; 24, second elastic member; 25, stop structure; 26, transmission member; 30, locking structure; 31, toggle end; 32, limit hole; 33, positioning protrusion; 40, first limit assembly; 41, first limit column; 42, positioning groove; 43, first elastic member; 50, second limit assembly; 51, second limit column; 52, arc groove; 60, tool body. DETAILED DESCRIPTION

[0037] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Preferred embodiments of the present invention are provided in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0038] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0039] In this document, spatially related terms such as "upper" and "lower" are defined with reference to the accompanying drawings. Therefore, it will be understood that "upper" and "lower" are used interchangeably. It will be understood that when a layer is referred to as being "on" another layer, it can be directly formed on the other layer, or intervening layers may also be present. Therefore, it will be understood that when a layer is referred to as being "directly on" another layer, there are no intervening layers interposed therebetween.

[0040] In the accompanying drawings, the sizes of layers and regions may be exaggerated for clarity. It is understood that when a layer or element is referred to as being "on" another layer or substrate, the layer or element may be directly on the other layer or substrate, or there may be intervening layers. In addition, it is also understood that when a layer is referred to as being "between" two layers, the layer may be the only layer between the two layers, or there may be one or more intervening layers. In addition, the same reference numerals always represent the same elements.

[0041] In the following embodiments, when a layer, region, or element is "connected", it can be interpreted that the layer, region, or element is not only directly connected but also connected through other constituent elements placed therebetween. For example, when a layer, region, element, etc. is described as being connected or electrically connected, the layer, region, element, etc. can be connected or electrically connected not only directly or directly, but also through another layer, region, element, etc. placed therebetween.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which the present invention pertains. The terms used herein in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0043] See also Figures 1 to 6 The present application provides a planing mobile phone 100, which includes a fixed seat 10, a rotating mechanism 20 and a locking structure 30. The fixed seat 10 can provide support for the rotation of the rotating mechanism 20 and the movement of the locking structure 30. The rotating mechanism 20 can be equipped with a tool body 60 and drive the tool body 60 to rotate. The locking structure 30 can lock the rotating mechanism 20 after the rotating mechanism 20 rotates to the required angle, so that the tool body 60 is fixed at this angle for cutting. The entire planing mobile phone 100 involves fewer parts. The rotating mechanism 20 drives the tool body 60 to rotate and also plays a role in clamping the tool. There is no need to set up a separate clamping structure and equip it with a corresponding transmission component. The structural processing is relatively simple, the coordination involved is small, and the precision requirement is low, so it is easy to realize mass production.

[0044] like Figure 2 As shown, further, the fixing seat 10 is provided with a first assembly hole 11; the rotating mechanism 20 is inserted in the first assembly hole 11 and is provided with a second assembly hole 211 in which the tool body 60 is inserted, and the rotating mechanism 20 is detachably connected to the tool body 60. In this way, the setting of the first assembly hole 11 facilitates the assembly of the rotating mechanism 20, and provides support and position limiting for the rotating mechanism 20, so that the rotating mechanism 20 can stably rotate in the first assembly hole 11. At the same time, the setting of the second assembly hole 211 facilitates the assembly of the tool body 60 by the rotating mechanism 20, and provides position limiting support for the tool body 60. The detachable connection between the rotating mechanism 20 and the tool body 60 is conducive to the replacement of the tool body 60, and different tool bodies 60 can be replaced according to actual needs to meet diverse cutting needs.

[0045] Further, combined with Figures 2 to 6The locking structure 30 is movably connected to the fixed seat 10 and has a locking position and an unlocking position; one of the locking structure 30 and the rotating mechanism 20 is provided with a limiting groove 214, and the other is provided with a positioning protrusion 33, and at least one of the positioning protrusion 33 and the limiting groove 214 is provided with a plurality of them and arranged along the circumference of the rotating mechanism 20; in the locking position, the positioning protrusion 33 is inserted into the limiting groove 214 to lock the rotating mechanism 20 to the fixed seat 10; in the unlocking position, the positioning protrusion 33 is disengaged from the limiting groove 214 to release the lock, and the rotating mechanism 20 can rotate around its own axis relative to the fixed seat 10.

[0046] In this way, locking is achieved by limiting the groove 214 and the positioning protrusion 33, which has a simple structure and is easy to operate. The locking structure 30 is movably connected to the fixed seat 10 so as to flexibly switch the locking position and the unlocking position, which is convenient to use. Specifically, when the locking structure 30 moves to the locking position, the positioning protrusion 33 and the limiting groove 214 produce a limiting match along the circumference of the rotating mechanism 20, thereby limiting the rotation of the rotating mechanism 20 and achieving the locking of the rotating mechanism 20; when the locking structure 30 moves to the unlocking position, the positioning protrusion 33 is disengaged from the limiting groove 214, that is, the limiting along the circumference of the rotating mechanism 20 is cancelled, and the rotating mechanism 20 can rotate freely.

[0047] In some embodiments, the locking structure 30 is provided with a positioning protrusion 33, and the rotating mechanism 20 is provided with a limiting groove 214. This is used as an example for explanation in this application; of course, in other embodiments, the locking structure 30 may also be provided with a limiting groove 214, and the rotating mechanism 20 may be provided with a positioning protrusion 33.

[0048] In some embodiments, there are multiple positioning protrusions 33, and one limiting groove 214 is provided. After the rotating mechanism 20 rotates a certain angle, the limiting groove 214 and one of the corresponding positioning protrusions 33 are limited and matched; or, it can also be that there are multiple limiting grooves 214, and one positioning protrusion 33 is provided. After the rotating mechanism 20 rotates a certain angle, the positioning protrusion 33 and one of the corresponding limiting grooves 214 are limited and matched. This application takes this as an example. Alternatively, there are multiple positioning protrusions 33 and limiting grooves 214 respectively, that is, multiple positioning protrusions 33 are arranged circumferentially along the rotating mechanism 20, and multiple limiting grooves 214 are arranged circumferentially along the rotating mechanism 20. After the rotating mechanism 20 rotates a certain angle, each positioning protrusion 33 cooperates with its corresponding limiting groove 214 one by one.

[0049] That is to say, the rotating mechanism 20 and the locking structure 30 are assembled and supported by the fixed seat 10, the rotating mechanism 20 can clamp the tool body 60 and drive the tool body 60 to rotate, and the locking structure 30 can lock or unlock the rotating mechanism 20 through the cooperation of the limit groove 214 and the positioning protrusion 33. The structure is simple, with less coordination and low requirements for processing accuracy, which is conducive to promoting large-scale batch production.

[0050] like Figure 2 As shown, in an optional embodiment, the rotating mechanism 20 has an axial direction, the positioning protrusion 33 and the limiting groove 214 are arranged opposite to each other along the axial direction, and the locking structure 30 is slidably connected to the fixing seat 10 and can reciprocate along the axial direction to switch the locking position and the unlocking position. In this way, the locking structure 30 can realize the extension or extension of the positioning protrusion 33 relative to the limiting groove 214 by axial movement, which is convenient for switching the locking position and the unlocking position, and the operation is simple.

[0051] In other embodiments, the limiting groove 214 and the positioning protrusion 33 may be arranged opposite to each other along the radial direction of the rotating mechanism 20, and the locking structure 30 may be slidably connected to the fixing seat 10 and may reciprocate along the radial direction of the rotating mechanism 20 to switch between the locking position and the unlocking position. This is only an example.

[0052] like Figure 5 and Figure 6 As shown, in a specific embodiment, along the axial direction of the rotating mechanism 20, the dimension of the limiting groove 214 along the radial direction of the rotating mechanism 20 gradually expands from the groove bottom of the limiting groove 214 toward the positioning protrusion 33. In this way, the notch of the limiting groove 214 is relatively large, which is convenient for the positioning protrusion 33 to be positioned, so that the positioning protrusion 33 can be easily inserted into the limiting groove 214 from the notch of the limiting groove 214, and as the positioning protrusion 33 gradually extends into the limiting groove 214, the space of the limiting groove 214 gradually decreases, which can enhance the limiting effect on the positioning protrusion 33.

[0053] like Figure 5 and Figure 6 As shown, in a more specific embodiment, the groove walls of the limiting groove 214 on both sides opposite to each other along the circumference of the rotating mechanism 20 are respectively set as first inclined surfaces, and the positioning protrusion 33 is correspondingly provided with a matching second inclined surface, and the first inclined surface can be fitted with the second inclined surface. Through the matching of the inclined surfaces, in the process of inserting the positioning protrusion 33 into the limiting groove 214, the positioning protrusion 33 can be guided, so that the positioning protrusion 33 can be adaptively assembled along the inclined direction of the first inclined surface, and the dimensional accuracy requirements of the positioning protrusion 33 and the limiting groove 214 are not high, and the processing is simpler, which is conducive to large-scale production.

[0054] like Figure 2As shown, in an optional embodiment, one of the locking structure 30 and the fixed seat 10 is provided with a connecting arm 14, and the other is provided with a limiting hole 32, and the connecting arm 14 is inserted into the limiting hole 32 and can move axially in the limiting hole 32. In this way, the hole wall of the limiting hole 32 has a limiting effect on the connecting arm 14, so that the connecting arm 14 can only move axially along the rotating mechanism 20, that is, the rotation of the locking structure 30 relative to the fixed seat 10 is limited, so that the locking structure 30 can stably reciprocate along the axial direction of the rotating mechanism 20, thereby improving the movement stability. Exemplarily, the locking structure 30 is configured with a limiting hole 32, and the fixed seat 10 is configured with a connecting arm 14; or, the locking structure 30 is configured with a connecting arm, and the fixed seat 10 is configured with a limiting hole.

[0055] like Figure 2 As shown, in an optional embodiment, the planing mobile phone 100 further includes a first limiting assembly 40 connected between the fixing base 10 and the locking structure 30 , and the first limiting assembly 40 is used to lock the axial movement of the locking structure 30 along the rotating mechanism 20 .

[0056] like Figure 2 and Figure 5 As shown, in a specific embodiment, the first limiting assembly 40 includes a first limiting column 41 and a positioning groove 42, one of which is provided on the locking structure 30 and the other is provided on the fixing seat 10; there are at least two positioning grooves 42, which are arranged at intervals along the axial direction of the rotating mechanism 20, and the first limiting column 41 can be plugged and matched with one of the at least two positioning grooves 42 to lock the locking structure 30 to the fixing seat 10. In this way, when the locking structure 30 moves axially along the rotating mechanism 20 to the locking position, the first limiting column 41 can be plugged and matched with one of the positioning grooves 42 to keep the position of the locking structure 30 along the axial direction of the rotating mechanism 20 fixed; when the locking structure 30 moves axially along the rotating mechanism 20 to the unlocking position, the first limiting column 41 can be plugged and matched with the other positioning groove 42 to fix the locking structure 30 at the unlocking position to avoid interference with the rotation of the rotating mechanism 20. Among them, the way in which the positioning groove 42 cooperates with the first limiting column 41 has a simple structure and convenient operation.

[0057] Exemplarily, the locking structure 30 is provided with a positioning groove 42 , and the fixing seat 10 is provided with a first limiting column 41 ; or, alternatively, the fixing seat 10 is provided with a positioning groove 42 , and the locking structure 30 is provided with a first limiting column 41 .

[0058] like Figure 2 As shown, in a specific embodiment, the fixing seat 10 or the locking structure 30 is provided with a receiving groove 12, and at least a portion of the first limiting column 41 is inserted into the receiving groove 12. When the locking structure 30 moves from one positioning groove 42 to another positioning groove 42, the first limiting column 41 can retreat into the receiving groove 12.

[0059] In a specific embodiment, the first limiting column 41 can adopt a first ball. In this way, the friction between the locking structure 30 and the first ball is small when moving, which is beneficial to extending the service life. When the locking structure 30 moves, the first ball can be easily withdrawn from the positioning groove 42, so that the movement of the locking structure 30 is smoother, and the locking structure 30 can be easily pushed with a smaller external force.

[0060] like Figure 2 As shown, in a further embodiment, the first limiting assembly 40 further includes a first elastic member 43, which is connected between the first limiting column 41 and the groove wall of the receiving groove 12, and is used to apply a force to the first limiting column 41 to move out of the receiving groove 12. In this way, the setting of the first elastic member 43 has the function of supporting and helping the first limiting column 41 to reset. Specifically, when the locking structure 30 switches between the unlocking position and the locking position, the locking structure 30 has an extrusion effect on the first limiting column 41, so that the first limiting column 41 squeezes the first elastic member 43 and retreats into the receiving groove 12. At this time, the first elastic member 43 has a reverse elastic force effect on the first limiting column 41. After the switching of the locking structure 30 is completed, the corresponding positioning groove 42 is arranged relative to the receiving groove 12, and the first elastic member 43 can push the first limiting column 41 to reset, and the first limiting column 41 is again matched with another positioning groove 42, so as to realize the limiting fixation of the locking structure 30 again. Exemplarily, the first elastic member 43 may be a tension spring or a torsion spring.

[0061] like Figure 2 As shown, in some embodiments, the fixing seat 10 is configured with a sinking space 13 that is recessed radially inward, and the locking structure 30 is installed in the sinking space 13. In this way, the sinking space 13 can accommodate and protect the locking structure 30, so that the locking structure 30 is not protruding from the surface of the fixing seat 10, reducing the possibility of accidentally touching the locking structure 30, and can also reduce the occupied space, making the planing mobile phone 100 more beautiful.

[0062] like Figure 2 and Figure 5 As shown, further, the locking structure 30 is provided with a toggle end 31 along the radial direction of the fixing seat 10 away from the fixing seat 10, so that a human hand can contact and push the locking structure 30 by relying on the toggle end 31, which is more labor-saving and easy to operate.

[0063] like Figure 2 As shown, in an optional embodiment, the planing mobile phone 100 also includes a second limiting assembly 50 connected between the rotating mechanism 20 and the fixed seat 10, and the second limiting assembly 50 can limit the axial movement of the rotating mechanism 20 so that the rotating mechanism 20 can only rotate within the first assembly hole 11.

[0064] In a specific embodiment, the second limiting assembly 50 includes a second limiting column 51 and an arc groove 52, one of which is provided on the rotating mechanism 20, and the other is provided on the fixed seat 10, the arc groove 52 extends along the circumference of the rotating mechanism 20, and a portion of the second limiting column 51 is inserted into the arc groove 52, which is used to axially limit the rotating mechanism 20. In this way, the second limiting column 51 and the arc groove 52 can cooperate along the axial limiting of the rotating mechanism 20 to achieve the axial limiting of the rotating mechanism 20, and the structure is simple. The setting of the arc groove 52 provides space for the second limiting column 51 to rotate with the rotating mechanism 20, avoiding interference with the rotation of the rotating mechanism 20.

[0065] In a further embodiment, an arc groove 52 is provided on the fixing seat 10 and connected to the first assembly hole 11, and a second limiting column 51 is provided on the rotating mechanism 20, so that the rotating mechanism 20 can be smoothly inserted into the position from the first assembly hole 11 to the arc groove 52, which is beneficial for the rotating mechanism 20 to be quickly positioned during the assembly process.

[0066] like Figures 2 to 4 As shown, in a specific embodiment, the second limiting column 51 is separately arranged from the rotating mechanism 20, and the rotating mechanism 20 is provided with a first assembly groove 215, which is formed by being recessed from the surface of the rotating mechanism 20 along the radial direction of the rotating mechanism 20; the arc groove 52 is connected with the sinking space 13. In this way, the rotating mechanism 20 can be assembled into the first assembly hole 11 first, and the first assembly groove 215 and the arc groove 52 are arranged opposite to each other, and then the second limiting column 51 is passed through the arc groove 52 from the sinking space 13, so that the second limiting column 51 is installed into the first assembly groove 215, and at the same time, part of the structure of the second limiting column 51 is located in the arc groove 52, so that the axial limitation of the rotating mechanism 20 and the fixed seat 10 is realized. The split arrangement is convenient for assembly, simple to operate, and conducive to improving production efficiency.

[0067] like Figure 2 As shown, further, when the locking structure 30 is in the locked position, the locking structure 30 blocks the arc groove 52, and when the locking structure 30 is in the unlocked position, the arc groove 52 is exposed in the sinking space 13. Therefore, when assembling the second limiting column 51, the locking structure 30 needs to be moved from the locked position to the unlocked position first.

[0068] In a specific embodiment, the second limiting column 51 can be a screw, and the screw is screwed into the first assembly groove 215 to complete the assembly.

[0069] Next, the structure of the rotating mechanism 20 will be described.

[0070] like Figures 2 to 4As shown, in an optional embodiment, the rotating mechanism 20 includes a rotating shaft 21, a rotating sleeve 22 and a first locking piece 23. The state of the first locking piece 23 is changed by moving the rotating sleeve 22 relative to the rotating shaft 21 to achieve locking or unlocking of the tool body 60. The structure is simple, less coordination is required, and the operation is convenient.

[0071] like Figure 2 As shown, specifically, the rotating shaft 21 is inserted into the first assembly hole 11 and rotatably connected to the fixing seat 10, and the rotating sleeve 22 is sleeved on the rotating shaft 21. Correspondingly, the rotating shaft 21 is provided with a second assembly hole 211 for assembling the tool body 60, and the rotating sleeve 22 can transmit external force to the rotating shaft 21 to realize the rotation of the rotating shaft 21, thereby driving the tool body 60 to rotate.

[0072] like Figures 2 to 4 As shown, further, the rotating sleeve 22 can reciprocate along the axis of the rotating shaft 21, a retreat space 201 is formed between the rotating sleeve 22 and the rotating shaft 21, and the rotating shaft 21 is configured with a locking hole 212, which can be connected to the retreat space 201; the first locking member 23 is installed in the locking hole 212 and is configured to enter the retreat space 201 or exit the retreat space 201 in response to the movement of the rotating sleeve 22, and the first locking member 23 can exit from the retreat space 201 and partially extend out of the locking hole 212 to lock the tool body 60. The setting of the retreat space 201 allows the first locking member 23 to be accommodated during the process of removing the tool body 60, so that the first locking member 23 cancels the locking of the tool body 60. The setting of the locking hole 212 can limit the radial movement of the first locking member 23 along the locking hole 212, and guide the first locking member 23 to move along the hole wall of the locking hole 212, thereby preventing the first locking member 23 from shaking when locking the tool body 60, thereby ensuring the stability of the locking.

[0073] like Figure 4 As shown, specifically, when the rotating sleeve 22 moves axially along the rotating shaft 21 toward the fixing seat 10 to the retreat space 201 and the locking hole 212 are arranged radially opposite to each other along the rotating shaft 21, the first locking member 23 can enter the retreat space 201, thereby canceling the locking of the tool body 60. Figure 3 As shown, when the rotating sleeve 22 moves axially away from the fixed seat 10 along the rotating shaft 21 to the retreat space 201 and is staggered with the locking hole 212, the rotating sleeve 22 squeezes the first locking piece 23 out of the retreat space 201 and makes part of the structure of the first locking piece 23 extend from the locking hole 212 to lock the tool body 60.

[0074] During actual assembly, the tool body 60 is constructed with a matching groove that matches with the first locking piece 23. First, the rotating sleeve 22 is moved along the axis of the rotating shaft 21 toward the fixed seat 10, and then the tool body 60 is inserted into the second assembly hole 211. The tool body 60 pushes the first locking piece 23 to move toward the retreat space 201. After the tool body 60 is assembled to the fixed position, the rotating sleeve 22 moves away from the fixed seat 10 along the axis of the rotating shaft 21. The first locking piece 23 withdraws from the retreat space 201 under the squeezing of the rotating sleeve 22 and cooperates with the matching groove of the tool body 60 to achieve locking of the tool body 60.

[0075] In some embodiments, the first locking member 23 is configured as a second ball bearing, and the smooth surface of the second ball bearing can reduce friction and help protect the tool body 60 .

[0076] like Figure 2 As shown, in some embodiments, the diameter of the locking hole 212 gradually expands from the second assembly hole 211 toward the rotating sleeve 22 along the radial direction of the rotating shaft 21, so that the hole wall of the locking hole 212 forms an inclined limiting surface, which has a limiting effect on the first locking piece 23 along the radial direction of the rotating shaft 21, thereby preventing the first locking piece 23 from falling out of the locking hole 212.

[0077] like Figures 2 to 4 As shown, in a specific embodiment, the rotating sleeve 22 is configured with an abutment slope toward the locking hole 212 to facilitate cooperation with the second ball, so that the second ball withdraws from the retreat space 201 under the abutment and guiding action of the abutment slope, making the movement of the rotating sleeve 22 smoother.

[0078] like Figures 2 to 4 As shown, in an optional embodiment, the rotating mechanism 20 further includes a second elastic member 24, which is connected between the rotating sleeve 22 and the fixed seat 10 and is used to drive the rotating sleeve 22 to move toward the side away from the fixed seat 10, so that the first locking member 23 exits the retreat space 201. In this way, the second elastic member 24 is conducive to helping the rotating sleeve 22 to reset, so that after the tool body 60 is inserted into the second assembly hole 211, the rotating sleeve 22 can automatically reset under the action of the elastic force, thereby squeezing the first locking member 23, so that the first locking member 23 exits from the retreat space 201.

[0079] like Figures 2 to 4 As shown, in an optional embodiment, the rotating mechanism 20 further includes a transmission member 26 disposed between the rotating sleeve 22 and the rotating shaft 21 , and the rotating sleeve 22 transmits the rotating power to the rotating shaft 21 through the transmission member 26 , thereby driving the rotating shaft 21 to rotate.

[0080] like Figures 2 to 4As shown, in a further embodiment, the rotating shaft 21 is configured with a transmission groove 213, and the transmission groove 213 is equipped with a transmission member 26; along the circumference of the rotating shaft 21, the transmission member 26 is limitedly matched with the groove wall of the transmission groove 213. In this way, the transmission member 26 can transmit force to the groove wall of the transmission groove 213, thereby driving the rotation of the rotating shaft 21, and the structure is simple and easy to process.

[0081] like Figures 2 to 4 As shown, in a further embodiment, the rotating sleeve 22 is configured with a matching groove 2201, and the matching groove 2201 extends along the axial direction of the rotating shaft 21; along the radial direction of the rotating shaft 21, the transmission member 26 is pressed between the groove wall of the matching groove 2201 and the groove wall of the transmission groove 213. In this way, the rotating sleeve 22 transmits the force to the transmission member 26 through the groove wall of the matching groove 2201, and then the force is transmitted to the rotating shaft 21 by the transmission member 26. Among them, since the rotating sleeve 22 needs to move axially along the rotating shaft 21 to realize the locking and unlocking of the tool body 60, the setting of the matching groove 2201 can provide an avoidance space for the movement of the rotating sleeve 22, so as to prevent the transmission member 26 from hindering the axial movement of the rotating sleeve 22.

[0082] In a specific embodiment, the transmission member 26 can be configured as a third ball bearing, which can reduce the friction between the transmission member 26 and the groove wall of the matching groove 2201 , thereby facilitating the smooth movement of the rotating sleeve 22 .

[0083] like Figures 2 to 4 As shown, in an optional embodiment, the rotating mechanism 20 further includes a stop structure 25, which is sleeved on the rotating shaft 21, and is used to limit the axial movement of the rotating sleeve 22. Specifically, when the rotating sleeve 22 moves along the axis of the rotating shaft 21 toward the fixed seat 10, the stop structure 25 limits its moving distance to prevent the rotating sleeve 22 from moving to disengage from the first locking member 23; when the rotating sleeve 22 is reset under the action of the second elastic member 24, the rotating sleeve 22 is stopped to prevent the rotating sleeve 22 from moving to disengage from the transmission member 26.

[0084] like Figures 2 to 4 As shown, in a specific embodiment, the stop structure 25 is arranged in the retreat space 201, and the rotating sleeve 22 is provided with a first abutting surface and a second abutting surface spaced along the axial direction of the rotating shaft 21 in the retreat space 201. When the rotating sleeve 22 moves axially toward the fixed seat 10 along the rotating shaft 21, the stop structure 25 can be limited to the first abutting surface; when the rotating sleeve 22 moves axially away from the fixed seat 10 along the rotating shaft 21, the stop structure 25 can be limited to the second abutting surface. In this way, the limiting effect of the rotating sleeve 22 moving back and forth along the rotating shaft 21 is achieved. Exemplarily, the stop structure 25 is threadedly connected to the rotating shaft 21.

[0085] like Figures 2 to 4As shown, in a specific embodiment, the rotating sleeve 22 includes a first sleeve 221 and a second sleeve 222. The first sleeve 221 is sleeved on the second sleeve 222, and the two are detachably connected, for example, threaded connection, interference fit, etc. can be adopted; the second sleeve 222 is sleeved on the rotating shaft 21 and is constructed with the above-mentioned matching groove 2201; further, the second elastic member 24 is connected between the second sleeve 222 and the fixed seat 10.

[0086] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0087] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A planing mobile phone, comprising a tool body, characterized in that: include: The fixing seat (10) is provided with a first assembly hole (11); a rotating mechanism (20) inserted into the first assembly hole (11) and provided with a second assembly hole (211) in which the tool body is inserted, the rotating mechanism (20) being detachably connected to the tool body; A locking structure (30) movably connected to the fixing seat (10) and having a locking position and an unlocking position; One of the locking structure (30) and the rotating mechanism (20) is provided with a limiting groove (214), and the other is provided with a positioning protrusion (33); at least one of the positioning protrusion (33) and the limiting groove (214) is provided in plurality and arranged along the circumference of the rotating mechanism (20); In the locked position, the positioning protrusion (33) is inserted into the limiting groove (214) to lock the rotating mechanism (20) to the fixed seat (10); in the unlocked position, the positioning protrusion (33) is disengaged from the limiting groove (214) to release the lock, and the rotating mechanism (20) can rotate around its own axis relative to the fixed seat (10).

2. The planing handpiece according to claim 1, characterized in that: The rotating mechanism (20) has an axial direction, the positioning protrusion (33) and the limiting groove (214) are arranged relatively along the axial direction, and the locking structure (30) is slidably connected to the fixing seat (10) and can reciprocate along the axial direction to switch between the locking position and the unlocking position.

3. The planing handpiece according to claim 2, characterized in that: One of the locking structure (30) and the fixing seat (10) is provided with a connecting arm (14), and the other is provided with a limiting hole (32); the connecting arm (14) is passed through the limiting hole (32) and is capable of moving along the axial direction in the limiting hole (32).

4. The planing handpiece according to claim 1, characterized in that: The planing mobile phone further comprises a first limiting component (40) connected between the fixing seat (10) and the locking structure (30); The first limiting assembly (40) comprises a first limiting column (41) and a positioning groove (42), one of which is arranged on the locking structure (30) and the other is arranged on the fixing seat (10); at least two positioning grooves (42) are provided and are arranged at intervals along the axial direction of the rotating mechanism (20); the first limiting column (41) can be plugged into and matched with at least two of the positioning grooves (42) to lock the locking structure (30) to the fixing seat (10).

5. The planing handpiece according to claim 4, characterized in that: The fixing seat (10) or the locking structure (30) is provided with a receiving groove (12), and at least a portion of the first limiting column (41) is inserted into the receiving groove (12); The first limiting assembly (40) further comprises a first elastic member (43), wherein the first elastic member (43) is connected between the first limiting column (41) and the groove wall of the receiving groove (12), and is used for applying a force to the first limiting column (41) to move out of the receiving groove (12).

6. The planing handpiece according to claim 1, characterized in that: The planing mobile phone further comprises a second limiting component (50) connected between the rotating mechanism (20) and the fixing seat (10); The second limiting assembly (50) comprises a second limiting column (51) and an arcuate groove (52), one of which is arranged on the rotating mechanism (20) and the other is arranged on the fixed seat (10), the arcuate groove (52) extends along the circumference of the rotating mechanism (20), and a portion of the second limiting column (51) is inserted into the arcuate groove (52) for axially limiting the rotating mechanism (20).

7. The planing handpiece according to claim 6, characterized in that: The arc-shaped groove (52) is provided on the fixing seat (10) and is connected to the first assembly hole (11).

8. The planing handpiece according to claim 1, characterized in that: The fixing seat (10) is constructed with a sinking space (13) which is recessed radially inwards, the locking structure (30) is installed in the sinking space (13), and the locking structure (30) is provided with a driving end (31) protruding on a side of the fixing seat (10) which is away from the fixing seat (10) in the radial direction of the fixing seat (10).

9. A planing handpiece according to any one of claims 1 to 8, characterized in that: The rotating mechanism (20) comprises a rotating shaft (21), a rotating sleeve (22) and a first locking member (23); The rotating shaft (21) is inserted into the first assembly hole (11) and is rotatably connected to the fixing seat (10); the rotating sleeve (22) is sleeved on the rotating shaft (21) and can reciprocate along the axis of the rotating shaft (21); a retreat space (201) is formed between the rotating sleeve (22) and the rotating shaft (21); the rotating shaft (21) is configured with a locking hole (212); and the locking hole (212) can be communicated with the retreat space (201); The first locking member (23) is installed in the locking hole (212) and is configured to enter the retreat space (201) or exit the retreat space (201) in response to the movement of the rotating sleeve (22); the first locking member (23) can exit from the retreat space (201) and partially extend out of the locking hole (212) to lock the tool body.

10. The planing handpiece according to claim 9, characterized in that: The rotating mechanism (20) further comprises a second elastic member (24), wherein the second elastic member (24) is connected between the rotating sleeve (22) and the fixed seat (10) and is used for driving the rotating sleeve (22) to move toward a side away from the fixed seat (10) so as to allow the first locking member (23) to withdraw from the retreat space (201).

11. The planing handpiece according to claim 10, characterized in that: The rotating mechanism (20) further comprises a stop structure (25), wherein the stop structure (25) is sleeved on the rotating shaft (21), and the stop structure (25) is used to limit the axial movement of the rotating sleeve (22).

12. The planing handpiece according to claim 10, characterized in that: The rotating mechanism (20) further comprises a transmission member (26) arranged between the rotating sleeve (22) and the rotating shaft (21); The rotating shaft (21) is configured with a transmission groove (213), and the transmission groove (213) is equipped with the transmission member (26); along the circumference of the rotating shaft (21), the transmission member (26) is limitedly matched with a groove wall of the transmission groove (213); The rotating sleeve (22) is configured with a matching groove (2201), and the matching groove (2201) extends along the axial direction of the rotating shaft (21); along the radial direction of the rotating shaft (21), the transmission member (26) is crimped between the groove wall of the matching groove (2201) and the groove wall of the transmission groove (213).

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