Electric gutta-percha filling transmission structure

Abstract

The utility model discloses an electric gutta-percha filling transmission structure which comprises a motor support, a guide sleeve is detachably arranged on one side of the motor support, a lead screw nut is arranged in the guide sleeve, a lead screw integrated motor is arranged on the motor support, and a lead screw shaft of the lead screw integrated motor is in transmission connection with the lead screw nut. The outer wall of the lead screw nut is attached to the inner wall of the guide sleeve, and the lead screw nut is driven by the lead screw integrated motor to slide in the guide sleeve. The lead screw integrated motor is sleeved with the lead screw nut, so that the lead screw nut is pushed in the direction of the guide sleeve, kinetic energy loss is reduced, compared with an existing electric hot gutta-percha filling instrument, four parts including a gear, a thrust bearing, a bearing bin and a ball bearing are simplified, the problems that the number of parts is large, and accuracy is difficult to control are solved, and the advantages of being high in transmission efficiency, high in reliability and the like are achieved. And the propelling precision is high.

Description

Technical Field

[0001] The utility model belongs to the field of dental surgical instruments and relates to a transmission device applied to an electric hot gutta-percha filling instrument. Background Art

[0002] At present, the structure of electric hot gutta-percha filling instruments is complicated, and the thrust is connected through multiple transmission parts, which increases kinetic energy loss. In addition, there are too many components and the installation is complicated. The coaxiality of multiple parts is difficult to control, which causes increased wear between components. The above will lead to defects such as complex installation of parts, difficult to control the dimensional chain, and high cost. At the same time, the electric hot gutta-percha filling instrument adopts the structure of photoelectric induction and screw Hall sensor. The above devices are too complicated and cannot accurately control the amount of gutta-percha.

[0003] Therefore, it is necessary to improve the prior art to overcome the defects in the prior art. Utility Model Content

[0004] In order to solve the above problems, the utility model provides an electric gutta-percha filling transmission structure with fewer parts and capable of accurately controlling the amount of gutta-percha.

[0005] The purpose of the utility model is achieved through the following technical solutions:

[0006] An electric gutta-percha filling transmission structure comprises a motor bracket, a guide sleeve is detachably provided on one side of the motor bracket, a screw nut is provided in the guide sleeve, a screw-in-one motor is provided on the motor bracket, and the screw shaft of the screw-in-one motor is transmission-connected with the screw nut; the outer wall of the screw nut is in contact with the inner wall of the guide sleeve and the screw nut slides in the guide sleeve under the drive of the screw-in-one motor.

[0007] As a further improvement of an embodiment of the utility model, the screw-in-one motor includes a motor, a reduction gearbox, a screw shaft, a magnetic disk and a Hall sensor circuit board, the motor is transmission-connected to the reduction gearbox, the reduction gearbox is transmission-connected to the screw shaft, and the magnetic disk and the Hall sensor circuit board are fixed on the motor.

[0008] As a further improvement of an embodiment of the utility model, a guide groove along the axial direction is provided on the side of the guide sleeve close to the motor bracket, and a guide block embedded in the guide groove is provided on the screw nut.

[0009] As a further improvement of an embodiment of the utility model, the number of the guide grooves is four, distributed in the upper, lower, left and right four positions of the guide sleeve, the screw nut is provided with four guide blocks, and each guide block is embedded in a corresponding guide groove.

[0010] As a further improvement of an embodiment of the utility model, the bottom of the guide sleeve has a carrier, and the lower bottom surface of the carrier is a plane.

[0011] As a further improvement of an embodiment of the utility model, a threaded structure is provided on a side of the guide sleeve away from the motor bracket.

[0012] As a further improvement of an embodiment of the utility model, a plurality of limiting grooves are axially arranged on a side of the guide sleeve away from the motor bracket, and the threaded structure avoids the limiting grooves.

[0013] As a further improvement of an embodiment of the utility model, a threaded hole is provided on a side of the motor bracket away from the guide sleeve.

[0014] The adoption of the above technical scheme has the following beneficial effects: through the integrated screw motor and screw nut set, the screw nut is pushed forward in the direction of the guide sleeve, reducing kinetic energy loss. Compared with the current electric hot gutta-percha filling instrument, the four components of gears, thrust bearings, bearing bins and ball bearings are simplified, solving the problem of too many components and difficult to control precision, and has the characteristics of high transmission efficiency and high pushing accuracy; the Hall sensing circuit board is directly fixed on the motor end, reducing the photoelectric sensor or Hall sensing magnet, and solving the problem of inaccurate photoelectric sensing and screw Hall sensing; it has the characteristics of simple structure, easy manufacturing and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0016] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0017] Figure 1 The present invention is a three-dimensional structural schematic diagram.

[0018] Figure 2 The utility model is provided with a schematic diagram of a top view structure.

[0019] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure along the AA direction.

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the screw-in-one motor provided by the utility model.

[0021] Figure 5 This is a schematic diagram of a partial three-dimensional structure provided by the utility model.

[0022] In the figure:

[0023] Motor bracket; 11-threaded hole;

[0024] Screw-type integrated motor; 21-screw shaft; 22-reduction box; 23-motor; 24-Hall induction circuit board; 25-disk;

[0025] Guide sleeve; 31-thread structure; 32-guide groove; 33-carrier; 34-limiting groove;

[0026] Screw nut; 41-guide block. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0029] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directional words are not used to limit the present invention. Example

[0030] See also Figure 1-Figure 5 As shown, an electric gutta-percha filling transmission structure comprises a motor bracket 1, a guide sleeve 3 is detachably provided on one side of the motor bracket 1 through bolts, a screw nut 4 is provided in the guide sleeve 3, a screw-integrated motor 2 is provided on the motor bracket 1, and a screw shaft of the screw-integrated motor 2 is transmission-connected with the screw nut 4. The outer wall of the screw nut 4 is in contact with the inner wall of the guide sleeve 3, and when the screw-integrated motor 2 is started, the screw nut 4 moves forward or backward along the guide sleeve 3.

[0031] In this embodiment, the screw-integrated motor 2 is as follows Figure 4 As shown, it includes a motor 23, a reduction box 22, a screw shaft 21, a magnetic disk 25 and a Hall sensing circuit board 24. The motor 23 is connected to the reduction box 22 by transmission, the reduction box 22 is connected to the screw shaft 21 by transmission, and the magnetic disk 25 and the Hall sensing circuit board 24 are fixed on the motor 23. In the above structure, the screw shaft 21 and the motor 23 are directly driven as a whole to reduce kinetic energy loss. Compared with the current electric hot gutta-percha filling instrument, the four parts of gears, thrust bearings, bearing bins and ball bearings are simplified. The Hall sensing circuit board 24 is directly fixed to the motor end, reducing the photoelectric sensor or Hall sensing magnet, which helps to solve the problem of inaccurate photoelectric sensing and screw Hall sensing.

[0032] In this embodiment, a threaded hole 11 is provided on the side of the motor bracket 1 away from the guide sleeve 3 so that the motor bracket 1 can be bolted to the equipment.

[0033] In this embodiment, a guide groove 32 along the axial direction is provided on the side of the guide sleeve 3 close to the motor bracket 1. The number of the guide grooves 32 is four, distributed in the upper, lower, left and right directions of the guide sleeve 3. Correspondingly, the lead screw nut 4 is provided with a guide block 41 embedded in the guide groove 32. The number of the guide blocks 41 is also four, and they are respectively embedded in the corresponding guide grooves. When the lead screw nut 4 slides on the guide sleeve 3, the four guide grooves 32 not only limit the sliding distance of the lead screw nut 4, but also make the sliding of the lead screw nut 4 more stable.

[0034] In this embodiment, a threaded structure 31 is provided on the side of the guide sleeve 3 away from the motor bracket 1. Through the threaded structure 31, when it is installed on the device, one end of the guide sleeve 3 can be locked and fixed through the threaded structure 31. The bottom of the guide sleeve 3 has a carrier 33, and its bottom surface is a plane. When it is installed on the device, the carrier 33 is generally overlapped on the support platform of the device to provide support for the guide sleeve 3.

[0035] In this embodiment, a plurality of limiting grooves 34 are axially arranged on the side of the guide sleeve 3 away from the motor bracket 1, wherein the thread structure 31 avoids the limiting groove 34, so that one end of the limiting groove 34 extends to the outside. When the guide sleeve 3 is installed on the equipment, the limiting groove 34 can provide a basis for the installation of other components.

[0036] The utility model adopts a screw-integrated motor 2 and a screw nut 4 set, so that the screw nut 4 is pushed in the direction of the guide sleeve 3. During installation, the screw-integrated motor 2 is first fixed on the motor bracket 1, thereby fixing the screw-integrated motor 2; then the screw nut 4 is screwed into the screw shaft 21; finally, the guide sleeve 3 is sleeved on the screw nut 4 and fixed on the motor bracket 1 with bolts. The above structure is simple, easy to manufacture, high in transmission efficiency, high in pushing accuracy, low in cost, and solves the problem of too many parts and difficult to control accuracy.

[0037] The transmission structure of the utility model can be used not only in the field of dental surgical instruments, but also in other fields of screw drive propulsion.

[0038] Obviously, the embodiments described above are only some embodiments of the utility model, not all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0039] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0040] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0041] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An electric gutta-percha filling transmission structure, characterized in that: It includes a motor bracket, one side of which is detachably provided with a guide sleeve, a screw nut is provided in the guide sleeve, a screw-in-one motor is provided on the motor bracket, and the screw shaft of the screw-in-one motor is transmission-connected with the screw nut; the outer wall of the screw nut fits with the inner wall of the guide sleeve and the screw nut slides in the guide sleeve under the drive of the screw-in-one motor.

2. The electric gutta-percha filling transmission structure according to claim 1, characterized in that: The screw-integrated motor comprises a motor, a reduction box, a screw shaft, a magnetic disk and a Hall sensor circuit board. The motor is drivingly connected to the reduction box, the reduction box is drivingly connected to the screw shaft, and the magnetic disk and the Hall sensor circuit board are fixed on the motor.

3. The electric gutta-percha filling transmission structure according to claim 2, characterized in that: The guide sleeve is provided with a guide groove along the axial direction on one side close to the motor bracket, and the screw nut is provided with a guide block embedded in the guide groove.

4. The electric gutta-percha filling transmission structure according to claim 3, characterized in that: There are four guide grooves distributed at the upper, lower, left and right positions of the guide sleeve. The screw nut is provided with four guide blocks, and each guide block is embedded in a corresponding guide groove.

5. The electric gutta-percha filling transmission structure according to claim 2, characterized in that: The bottom of the guide sleeve is provided with a carrier, and the lower bottom surface of the carrier is a plane.

6. The electric gutta-percha filling transmission structure according to claim 2, characterized in that: The guide sleeve is provided with a thread structure on one side away from the motor bracket.

7. The electric gutta-percha filling transmission structure according to claim 6, characterized in that: The guide sleeve is axially provided with a plurality of limiting grooves on one side away from the motor bracket, and the threaded structure avoids the limiting grooves.

8. The electric gutta-percha filling transmission structure according to claim 2, characterized in that: A threaded hole is arranged on a side of the motor bracket away from the guide sleeve.

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