Pressing type bur clamping device for high-speed mobile phone

Abstract

The utility model discloses a high-speed mobile phone pressing type bur clamping device, which relates to the technical field of medical instruments, and comprises a main body, a pressing part and a plurality of clamping parts, according to the technical scheme, the gaps exist between the arc faces of the clamping parts and the side walls of the clamping space, the second inclined faces of the clamping parts abut against the first inclined faces of the pressing parts, when the pressing parts are driven to move in the clamping space, the pressing parts can open the clamping parts, the multiple clamping parts are far away from one another, clamping of the multiple clamping parts to the machine needle is relieved, and the machine needle is prevented from being damaged. When the pressing part is loosened and the plurality of clamping parts are reset, the pressing part is reset under the transmission of the first inclined surface and the second inclined surface, and the plurality of clamping parts clamp and fix the machine needle again, so that the stability of fixing the machine needle is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a high-speed handpiece press-type bur clamping device. Background Technique

[0002] The bur clamping structure of a dental high-speed handpiece is a component that clamps a bur during the operation of the dental high-speed handpiece to perform operations such as drilling, expanding, and grinding on the patient's teeth. The effective clamping of the bur is crucial for the dental handpiece. However, after using it for a certain period of time, it is necessary to eliminate the disadvantages that the bur is prone to looseness and slipping due to frequent friction, and avoid phenomena such as deformation and looseness of the outward tension of the bur. In view of the above problems, improvements are made. Content of the Utility Model

[0003] The main purpose of the utility model is to propose a high-speed handpiece press-type bur clamping device, aiming to ensure the effect of clamping the bur and facilitate the replacement of the clamped bur.

[0004] To achieve the above object, the high-speed handpiece press-type bur clamping device proposed by the utility model includes:

[0005] A main body, in which a clamping space is provided;

[0006] A pressing part, which penetrates through the clamping space. The pressing part is hollow, and an avoidance space is provided on the side surface of the pressing part;

[0007] A plurality of clamping parts, which are arranged in the clamping space and are oppositely arranged. A plurality of clamping parts are all in contact with the pressing part, and the clamping parts penetrate through the avoidance space;

[0008] Wherein, an arc surface is provided on the side surface of the clamping part close to the side wall of the clamping space, and a gap is provided between the arc surface and the clamping space. The contact surface between the pressing part and the clamping part is a first inclined surface, and the contact surface between the clamping part and the pressing part is a second inclined surface.

[0009] In an embodiment, the clamping part includes a first clamping body and a second clamping body. The first clamping body is connected to the second clamping body. The first clamping body is inserted into the avoidance space, and the side surface of the first clamping body is in contact with the side wall of the clamping space. A gap is provided between the side surface of the second clamping body and the side wall of the clamping space, and the pressing part is in contact with the second clamping body.

[0010] In an embodiment, the second inclined surface is provided on the side surface of the second clamping body close to the center of the clamping space. The first inclined surface is in contact with the second inclined surface, and a clamping surface is further provided on the side surface of the second clamping body close to the center of the clamping space.

[0011] In one embodiment, the clamping surface is an uneven texture.

[0012] In one embodiment, the first clamping body and the main body are connected by a connecting member.

[0013] In one embodiment, the pressing part includes a first pressing body and a plurality of second pressing bodies. The plurality of second pressing bodies are spaced apart on the outer side surface of the first pressing body. An adjacent two of the second pressing bodies enclose the avoidance space. The first clamping body passes through the clamping space and contacts the side surface of the second pressing body.

[0014] In one embodiment, a guiding part is provided between adjacent two of the second pressing bodies. The guiding part is provided on the side surface of the first pressing body. The guiding part is provided with a third inclined surface facing the side surface of the first clamping body.

[0015] In one embodiment, the side surface of the first clamping body facing the guiding part is provided with a fourth inclined surface for abutting against the third inclined surface.

[0016] In one embodiment, the clamping space includes a first clamping cavity and the second clamping cavity. The first clamping cavity communicates with the second clamping cavity. The cross-section of the first clamping cavity is larger than the cross-section of the second clamping cavity for restricting the movement of the clamping part and the pressing part in the clamping space.

[0017] In one embodiment, the high-speed handpiece press-type bur clamping device further includes a limiting member. The limiting member is screwed and assembled on the main body and limits the pressing part.

[0018] The technical solution of the present utility model has a gap between the arc surface of the clamping part and the side wall of the clamping space, and the second inclined surface of the clamping part abuts against the first inclined surface of the pressing part. When the pressing part is driven to move in the clamping space, the pressing part can expand the clamping part, and a plurality of clamping parts move away from each other, releasing the clamping of the bur by the plurality of clamping parts, facilitating the replacement or adjustment of the bur. When the pressing part is released, when the plurality of clamping parts reset themselves, under the transmission of the first inclined surface and the second inclined surface, the pressing part is reset, and the plurality of clamping parts re-clamp and fix the bur, ensuring the stability of fixing the bur. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0020] Figure 1 It is a schematic diagram of the exploded structure of an embodiment of the high-speed mobile phone push-type needle clamping device provided by the utility model;

[0021] Figure 2 A first cross-sectional structural schematic diagram of an embodiment of a high-speed mobile phone push-type needle clamping device provided by the utility model;

[0022] Figure 3 A second cross-sectional structural schematic diagram of an embodiment of a high-speed mobile phone push-type needle clamping device provided by the utility model;

[0023] Figure 4 A schematic structural diagram of a limiting member in an embodiment of a high-speed mobile phone push-type needle clamping device provided by the utility model;

[0024] Figure 5 A schematic structural diagram of a pressing portion in an embodiment of a high-speed mobile phone pressing needle clamping device provided by the utility model;

[0025] Figure 6 This is a structural schematic diagram of the clamping part of an embodiment of the high-speed mobile phone push-type needle clamping device provided by the utility model;

[0026] Figure 7 This is a schematic structural diagram of the main body in an embodiment of the high-speed mobile phone push-type needle clamping device provided by the utility model.

[0027] Description of Figure Numbers:

[0028] 100. High-speed mobile phone push-type needle clamping device; 10. Limiting member; 11. Tightening portion; 12. Spiral pattern; 13. Limiting body; 20. Pressing portion; 21. First pressing body; 22. Guide portion; 23. Avoidance space; 26. First inclined surface; 27. Second pressing body; 30. Clamping portion; 31. Fourth inclined surface; 32. First clamping body; 33. Second inclined surface; 34. Second clamping body; 35. Clamping surface; 40. Connecting member; 50. Body; 51. First clamping cavity; 52. Accommodating groove; 53. Second clamping cavity; 54. Accommodating body.

[0029] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, then such directional indications are only used to explain the relative positional relationship, movement conditions, etc. between components in a certain specific posture. If this specific posture changes, then the directional indications will also change accordingly.

[0032] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, then such descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel scenarios. Taking "A and / or B" as an example, it includes Scenario A, or Scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0033] The present utility model provides a push - type bur holder for a high - speed handpiece.

[0034] Please refer to Figure 1 , in an embodiment of the present utility model, the push - type bur holder for a high - speed handpiece includes:

[0035] A main body 50, with a clamping space provided inside the main body 50;

[0036] A pressing part 20, the pressing part 20 penetrates through the clamping space, the pressing part 20 is hollow, and an avoidance space 23 is provided on the side surface of the pressing part 20;

[0037] A plurality of clamping parts 30, the plurality of clamping parts 30 are arranged in the clamping space and are oppositely arranged. The plurality of clamping parts 30 are all in contact with the pressing part 20, and the clamping parts 30 penetrate through the avoidance space 23;

[0038] Wherein, an arc surface is provided on the side surface of the clamping part 20 close to the side wall of the clamping space, and a gap is provided between the arc surface and the clamping space. The abutting surface where the pressing part 20 contacts the clamping part 30 is a first inclined surface 26, and the abutting surface where the clamping part 30 contacts the pressing part 20 is a second inclined surface 33.

[0039] As Figures 1 to 3As shown in the figure, the pressing part 20 and the plurality of clamping parts 30 are both arranged in the clamping space. The plurality of clamping parts 30 all pass through the pressing part 20, and the pressing part 20 is in contact with the plurality of clamping parts 30.

[0040] It can be understood that the bur is passed through the pressing part 20 and clamped and fixed by the clamping part 30, so that the bur is passed through and fixed in the main body 50. Through the common fixation of the bur by the plurality of clamping parts 30, the stability of the fixation is ensured.

[0041] As Figure 1 shown, an arc surface is provided on the side of the clamping part 20 close to the side wall of the clamping space, so that there is a gap between the arc surface and the side wall of the clamping space. When the pressing part 20 is pressed, since the first inclined surface 26 is in contact with the second inclined surface 33, when the pressing part 20 presses the clamping part 20, the clamping part 20 is expanded, thereby realizing the unlocking of the bur, facilitating the replacement or adjustment of the bur, and improving the convenience of replacing or adjusting the bur.

[0042] In the technical solution of the present utility model, there is a gap between the arc surface of the clamping part 20 and the side wall of the clamping space, and the second inclined surface 33 of the clamping part 30 is in contact with the first inclined surface 26 of the pressing part 20. When the pressing part 20 is driven to move in the clamping space, the pressing part 20 can expand the clamping part 20, and the plurality of clamping parts 20 move away from each other, releasing the clamping of the bur by the plurality of clamping parts 20, facilitating the replacement or adjustment of the bur. When the pressing part 20 is released, when the plurality of clamping parts 20 reset themselves, under the transmission of the first inclined surface 26 and the second inclined surface 33, the pressing part 20 is reset, and the plurality of clamping parts 20 re-clamp and fix the bur, ensuring the stability of fixing the bur.

[0043] In an embodiment, the clamping part 30 includes a first clamping body 32 and a second clamping body 34. The first clamping body 32 is connected to the second clamping body 34. The first clamping body 32 is inserted into the avoidance space 23, and the side surface of the first clamping body 32 is in contact with the side wall of the clamping space. There is a gap between the side surface of the second clamping body 34 and the side wall of the clamping space, and the pressing part 20 is in contact with the second clamping body 34.

[0044] As Figure 1 And Figure 6 shown, the first clamping body 32 and the second clamping body 34 are arranged at an angle, and the angle is an obtuse angle, so that the second inclined surface 33 can face the pressing part 20, and the second inclined surface 33 can be in contact with the first inclined surface 26.

[0045] It can be understood that when driving the movement of the pressing part 20, the pressing part 20 applies a force to the second clamping body 34, thereby causing the second clamping body 34 to rotate relative to the first clamping body 32, and the included angle between the second clamping body 34 and the first clamping body 32 becomes larger. In this way, the relative distance between the plurality of second clamping bodies 34 becomes larger, thereby realizing the unlocking of the bur.

[0046] It can be understood that when releasing the pressing part 20, the second clamping body 34 resets, that is, the included angle between the second clamping body 34 and the first clamping body 32 resets, thereby pushing the pressing part 20 to reset, and the relative distance between the plurality of second clamping bodies 34 becomes smaller, so as to realize the clamping and fixing of the bur.

[0047] Such as Figure 3 And Figure 6 As shown, the side surface of the second clamping body 34 facing the side wall of the clamping space is an arc surface, so that there is a gap between the arc surface and the side wall of the clamping space, which is convenient for the second clamping body 34 to rotate relative to the first clamping body 32, and the existence of the gap facilitates the rotation of the second clamping body 34.

[0048] In order to limit the first clamping body 32, thereby restricting the movement of the clamping part 30, an avoidance space is provided on the clamping part 30, and the first clamping body 32 passes through the avoidance space. When the pressing part 20 moves in the clamping space, the movement of the pressing part 20 will not interfere with the clamping part 30.

[0049] In an embodiment, the second inclined surface 33 is provided on the side surface of the second clamping body 34 close to the center of the clamping space, the first inclined surface 26 is in contact with the second inclined surface 33, and a clamping surface 35 is further provided on the side surface of the second clamping body 34 close to the center of the clamping space.

[0050] Such as Figure 3 As shown, the first inclined surface 26 is in contact with the second inclined surface 33. When the pressing part 20 is driven to move, it can cause the second clamping body 34 to rotate relative to the first clamping body 32, so as to realize the unlocking of the bur.

[0051] Such as Figures 1 to 3 As shown, the clamping surface 35 is arranged on the side surface of the second clamping body 34, and the clamping surfaces 35 on the plurality of second clamping bodies 34 all face the center of the clamping space. When the second clamping body 34 is driven to move away from the center of the clamping space, the plurality of clamping surfaces 35 move away from the center of the clamping space to realize the unlocking of the bur.

[0052] It should be noted that the clamping surface 35 is used to clamp the needle.

[0053] In one embodiment, the clamping surface 35 has a concave-convex texture.

[0054] In order to improve the clamping effect of the needle, the clamping surface 35 is provided with a concave-convex texture. When the clamping surfaces 35 on multiple second clamping bodies 34 all apply force to the needle, the friction between the second clamping body 34 and the needle is increased, thereby preventing the needle from rotating relative to the main body 50 during operation and affecting the working effect of the needle.

[0055] In one embodiment, the first clamping body 34 and the main body 50 are connected via a connecting member 40 .

[0056] In order to prevent the clamping portion 30 from moving relative to the main body 50 and affecting the fixing effect on the needle, the first clamping body 34 is connected to the main body 50 through the connecting member 40 to limit the movement of the clamping portion 30 .

[0057] like Figure 1 and Figure 6 As shown, the main body 50 is provided with a through hole, the first clamping body 34 is provided with a mounting slot hole with an opening away from the center of the clamping space, the connecting member 40 passes through the through hole and extends into the mounting slot hole, thereby realizing the restricted fixation of the main body 50 and the clamping portion 30.

[0058] It should be noted that the connecting member 40 is a bolt or a screw.

[0059] In one embodiment, the pressing portion 20 includes a first pressing body 21 and a plurality of second pressing bodies 27, wherein the plurality of second pressing bodies 27 are spaced apart on the outer side surface of the first pressing body 21, and two adjacent second pressing bodies 27 are combined to form the avoidance space 23, and the first clamping body 32 is penetrated in the clamping space 23 and contacts the side surface of the second pressing body 27.

[0060] like Figure 5 As shown, the gap between two adjacent second pressing bodies 27 is the avoidance space, which facilitates the insertion of the first clamping body 34 and the sliding of the first clamping body 34 in the avoidance space 23 to avoid interference with the movement of the pressing portion 20 .

[0061] It is understandable that the side surface of the first clamping body 32 abuts against the side surface of the second pressing body 27 to prevent the first clamping body 32 from moving laterally between the plurality of second pressing bodies 27 and thus affecting the clamping and fixing effect of the clamping portion 30 on the needle.

[0062] In one embodiment, a guiding portion 22 is provided between two adjacent second pressing bodies 27. The guiding portion 22 is disposed on a side surface of the first pressing body 21, and a third inclined surface is provided on the guiding portion 22 facing the side surface of the first clamping body 21.

[0063] In order to limit the movement distance of the pressing portion 20, a plurality of the guiding portions 22 are provided at intervals on the side surface of the first pressing body 21. The plurality of guiding portions 22 are respectively disposed between a plurality of the second pressing bodies 27 and are located on one side of the first clamping body 32.

[0064] It can be understood that when the pressing portion 20 is driven to move until the guiding portion 22 abuts against the first clamping body 32, since the movement of the first clamping body 32 is restricted, the continuous movement of the pressing portion 20 is restricted by the abutment of the guiding portion 22 against the first clamping body 32.

[0065] In one embodiment, a fourth inclined surface 31 is provided on the side surface of the first clamping body 21 facing the guiding portion 22 for abutting against the third inclined surface.

[0066] Such as Figure 5 And Figure 6 As shown, the setting of the fourth inclined surface 31 for contacting the third inclined surface enables the guiding portion 22 to ensure the stability of the contact between the guiding portion 22 and the first clamping body 32 when they contact. And when the second clamping body 34 is reset to drive the pressing portion 20 to reset, the guiding portion 22 is smoothly separated from the first clamping body 32, avoiding affecting the stability of the first clamping body 32.

[0067] In one embodiment, the clamping space includes a first clamping cavity 51 and a second clamping cavity 53. The first clamping cavity 51 communicates with the second clamping cavity 53. The cross-section of the first clamping cavity 51 is larger than that of the second clamping cavity 53 for restricting the movement of the clamping portion 30 and the pressing portion 20 within the clamping space.

[0068] Such as Figure 7 As shown, the main body 50 includes a receiving body 54. The clamping space is provided within the receiving body 54. The clamping space includes the first clamping cavity 51 and the second clamping cavity 53. The pressing portion 20 and the clamping portion 30 are both disposed within the first clamping cavity 51, and the second clamping body 34 is disposed within the second clamping cavity 53. The drill bit penetrates through the first clamping cavity 51 and the second clamping cavity 53 and is clamped and fixed by a plurality of the second clamping bodies 34.

[0069] It should be noted that, for the convenience of the rotation of the second clamping body 34 relative to the first clamping body 32, a plurality of openings are provided on the side wall of the second clamping cavity 53 to communicate with the receiving groove 52 of the second clamping cavity 53. The second clamping body 34 extends into the receiving groove 52, facilitating the rotation of the second clamping body 34 when the second clamping body 34 is subjected to the pressure of the pressing part 20 by providing space for the rotation of the second clamping body 34.

[0070] In an embodiment, the high-speed handpiece pressing type bur clamping device 100 further includes a restricting member 10. The restricting member 10 is helically assembled to the main body 50 and restricts the pressing part 20.

[0071] As Figure 3 shown, in order to prevent the pressing part 20 from detaching from the main body 50, a restricting member 10 is provided on the main body 50 and abuts against the pressing part 20, and the pressing part 20 passes through the restricting member 10, facilitating the application of an external force to the pressing part 20 to drive the movement of the pressing part 20.

[0072] As Figure 4 shown, the restricting member 10 includes a restricting main body 13, a helical thread 12 and a tightening part 11. The tightening part 11 is installed at the end of the restricting main body 13, and the helical thread 12 is provided on the outer side surface of the restricting main body 12. By rotating the restricting main body 13, the restricting member 10 can be helically engaged with the main body 50, and the restricting member 10 is stably connected to the main body 50 and restricts the pressing part 20.

[0073] As Figure 7 shown, mating threads are provided on the side wall of the first clamping cavity 51. When the restricting member 10 is engaged with the main body 50, the helical thread 12 cooperates with the mating threads to ensure the stability of the assembly of the restricting member 10.

[0074] It can be understood that when the restricting member 10 is assembled to the main body 50, the restricting main body 13 abuts against the pressing part 20, so that the pressing part 20 is restricted by the cooperation of the second clamping body 34 and the restricting main body 13, ensuring the relative static state between the pressing part 20 and the clamping part 30 without applying an external force to the pressing part 20, and ensuring the stable clamping effect on the bur.

[0075] The above are only exemplary embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the technical concept of the present invention by using the content of the specification and drawings of the present invention, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. A high-speed mobile phone push-type needle clamping device, characterized in that: include: A main body, wherein a clamping space is provided in the main body; A pressing portion, the pressing portion is inserted into the clamping space, the pressing portion is hollow, and a side of the pressing portion is provided with an escape space; A plurality of clamping parts, the plurality of clamping parts are arranged in the clamping space and are arranged opposite to each other, the plurality of clamping parts are all in contact with the pressing part, and the clamping parts are arranged through the avoidance space; Among them, the side of the clamping part close to the side wall of the clamping space is provided with an arc surface, and a gap is provided between the arc surface and the clamping space, the abutting surface between the pressing part and the clamping part is a first inclined surface, and the abutting surface between the clamping part and the pressing part is a second inclined surface.

2. The high-speed handpiece push-type needle clamping device according to claim 1, characterized in that: The clamping portion includes a first clamping body and a second clamping body, the first clamping body is connected to the second clamping body, the first clamping body is inserted into the avoidance space, and the side surface of the first clamping body abuts against the side wall of the clamping space, the gap is provided between the side surface of the second clamping body and the side wall of the clamping space, and the pressing portion abuts against the second clamping body.

3. The high-speed handpiece push-type needle clamping device according to claim 2, characterized in that: The second inclined surface is disposed on the side of the second clamping body close to the center of the clamping space, the first inclined surface contacts the second inclined surface, and the side of the second clamping body close to the center of the clamping space is further provided with a clamping surface.

4. The high-speed handpiece push-type needle clamping device as claimed in claim 3, characterized in that: The clamping surface has a concave-convex texture.

5. The high-speed handpiece push-type needle clamping device as claimed in claim 3, characterized in that: The first clamping body is connected to the main body via a connecting piece.

6. The high-speed handpiece push-type needle clamping device as claimed in claim 3, characterized in that: The pressing portion includes a first pressing body and a plurality of second pressing bodies, wherein the plurality of second pressing bodies are spaced apart on the outer side surface of the first pressing body, and two adjacent second pressing bodies are combined to form the avoidance space, and the first clamping body is inserted into the clamping space and contacts the side surface of the second pressing body.

7. The high-speed handpiece push-type needle clamping device according to claim 6, characterized in that: A guide portion is provided between two adjacent second pressing bodies, the guide portion is provided on the side surface of the first pressing body, and a third inclined surface is provided on the side surface of the guide portion facing the first clamping body.

8. The high-speed handpiece push-type needle clamping device according to claim 7, characterized in that: A fourth inclined surface is provided on the side of the first clamping body facing the guide portion, for abutting against the third inclined surface.

9. The high-speed handpiece push-type needle clamping device according to claim 8, characterized in that: The clamping space includes a first clamping cavity and a second clamping cavity, the first clamping cavity is connected to the second clamping cavity, and the cross section of the first clamping cavity is larger than the cross section of the second clamping cavity, so as to limit the movement of the clamping part and the pressing part in the clamping space.

10. The high-speed handpiece push-type needle clamping device according to claim 9, characterized in that: The high-speed mobile phone pressing type needle clamping device also includes a limiting member, which is screwed on the main body and limits the pressing part.

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