CN214231569U - Bending machine connecting structure and dental bending machine - Google Patents

Abstract

The embodiment of the utility model provides a bending machine connection structure and dental handpiece relates to medical instrument technical field. The embodiment of the utility model provides a bending machine connection structure includes adapter sleeve, insulating cover, handle circle, conductive ring and illuminating part. The both ends of handle circle are provided with the spacing portion of connecting portion respectively, and the insulating cover is connected with connecting portion, and the adapter sleeve is located the handle circle inboard, and the both ends of adapter sleeve respectively with spacing portion and insulating cover butt to it is spacing to the adapter sleeve. The illuminating part is installed in the installation space, and the first opening is used for making the optic fibre and the installation space intercommunication of bender head, and the light that so illuminating part sent gets into optic fibre through first opening to transmit in optic fibre, in order to throw light on. When the light-emitting part rotates relative to the conducting ring along with the connecting sleeve, the light-emitting part and the conducting ring are always conducted. The connecting structure of the bending machine realizes that the bending machine head can rotate 360 degrees relative to the bending machine handle, and in the rotating process, the lighting function is not influenced, so that the connecting structure of the bending machine is convenient to use and good in effect.

Description

Bending machine connecting structure and dental bending machine

Technical Field

The utility model relates to the technical field of medical equipment, particularly, relate to a bending machine connection structure and dental hand bender.

Background

Root canal treatment of teeth is a more important tooth repairing method in the dental field. Root canal therapy refers to a method for treating pulposis and periapical disease, and the operating principle is to remove inflammatory dental pulp and necrotic tissue in the root canal, and to flush gutta-percha points and paste into the root canal, so as to prevent the invasion of bacteria. Can effectively prevent the periapical disease and promote the healing of the periapical disease. Root canal therapy is the first and foremost treatment for dental inflammation.

When the root canal therapy is carried out, a dentist needs to observe the oral cavity of a human body to ensure that the operation position is accurate, and therefore, the dentist needs to set a light source for illumination when the treatment is carried out. For example, when the root canal preparation is performed, the operation is performed through the root canal preparation machine, and a doctor generally needs to hang a lighting part bracket externally when using the root canal preparation machine, so that the use is inconvenient.

SUMMERY OF THE UTILITY MODEL

The object of the present invention includes, for example, providing a bending machine connection structure that can improve the above-mentioned technical problems existing in the prior art.

The object of the present invention is also to provide a dental handpiece which allows to improve the above-mentioned technical problems existing in the prior art.

The embodiment of the utility model discloses a can realize like this:

the embodiment of the utility model provides a bending machine connection structure, it is used for connecting bending machine head and bending machine handle, bending machine connection structure includes adapter sleeve, insulating cover, handle circle, conductive ring and illuminating part, the adapter sleeve is used for being connected with the bending machine head, the insulating cover is used for being connected with the bending machine handle; the handle ring is characterized in that a connecting part and a limiting part are respectively arranged at two ends of the handle ring, the insulating sleeve is connected with the connecting part, the connecting sleeve is positioned at the inner side of the handle ring, and the two ends of the connecting sleeve are respectively abutted against the limiting part and the insulating sleeve so as to limit the connecting sleeve between the insulating sleeve and the limiting part;

the connecting sleeve is provided with an installation space and a first opening communicated with the installation space, the light-emitting piece is installed in the installation space, and the first opening is used for communicating the optical fiber of the bending machine head with the installation space; the light-emitting piece is electrically connected with the conducting ring, and when the light-emitting piece rotates along with the connecting sleeve relative to the conducting ring, the light-emitting piece is always conducted with the conducting ring.

Optionally, the connecting sleeve includes a fastener and a handle fixing ring, a groove is formed at one end of the handle fixing ring, and the fastener is fastened with the handle fixing ring to form the mounting space with the groove; the first opening is arranged on the fastener; the two ends of the handle fixing ring are respectively abutted with the limiting part and the insulating sleeve.

Optionally, the connecting sleeve is provided with a first mounting protrusion, and the first mounting protrusion abuts against the insulating sleeve; the insulating sleeve is provided with a second mounting protrusion, and the second mounting protrusion and the first mounting protrusion are arranged at intervals to form an annular space for accommodating the conducting ring; the connecting sleeve is provided with a second opening communicated with the annular space and the mounting space, and a lead of the light-emitting piece penetrates through the second opening to be electrically connected with the conducting ring.

Optionally, the bending machine connecting structure further includes an insulating ring, where the conductive ring includes a first conductive ring and a second conductive ring, and the insulating ring is disposed between the first conductive ring and the second conductive ring to isolate the first conductive ring from the second conductive ring; the wire includes first wire and second wire, first wire with first conducting ring electricity is connected, the second wire with the second conducting ring electricity is connected, and is in the illuminating part along with the adapter sleeve is relative when the conducting ring rotates, first wire with first conducting ring switches on all the time, the second wire with the second conducting ring switches on all the time.

Optionally, the bending machine connecting structure further comprises a conductive elastic sheet, and the conductive elastic sheet is fixedly connected to the first mounting protrusion; one end of the conductive elastic sheet is connected with the lead, and the other end of the conductive elastic sheet is tightly propped against the conductive ring.

Optionally, the first mounting protrusion is provided with a positioning groove communicated with the second opening and a convex column arranged in the positioning groove, the conductive elastic sheet comprises a connecting arm and an elastic arm which are connected with each other, the lead and the connecting arm are both connected to the convex column to position the conductive elastic sheet, and the lead is in conductive contact with the connecting arm; the elastic arm is abutted against and contacted with the conducting ring.

Optionally, the second mounting protrusion is provided with a notch extending along the axial direction of the second mounting protrusion, and the bending machine connection structure further includes a circuit board connection line; one end of the circuit board connecting wire is located in the notch and electrically connected with the conducting ring, and the other end of the circuit board connecting wire is used for extending out of the insulating sleeve to be connected with the circuit board.

Optionally, the connecting sleeve is provided with a pin hole, the bending machine connecting structure further comprises a pin installed in the pin hole, and the pin is used for being connected with the bending machine head.

The embodiment of the utility model also provides a dental hand bender. The dental bending handpiece comprises a bending handpiece, a bending handpiece handle and a bending handpiece connecting structure; the bending machine head is connected with a connecting sleeve of the bending machine connecting structure, and the bending machine handle is connected with an insulating sleeve of the bending machine connecting structure.

Optionally, the bending machine head comprises an optical fiber, a bending machine head shell and an input gear box, the input gear box is connected with the connecting sleeve, and the bending machine head shell is fixedly connected to one side of the input gear box far away from the connecting sleeve; the optical fiber bending machine is characterized in that a first optical fiber hole is formed in the input gear box, a second optical fiber hole is formed in the bending machine head shell, the first optical fiber hole and the second optical fiber hole are communicated to form an installation channel of optical fibers, one end, far away from the first optical fiber hole, of the second optical fiber hole is provided with a third opening penetrating through the bending machine head shell, and the third opening is used for enabling light transmitted by the optical fibers to be emitted out for illumination.

The utility model discloses bender connection structure and dental handpiece's beneficial effect includes, for example:

the embodiment of the utility model provides a bending machine connection structure includes adapter sleeve, insulating cover, handle circle, conductive ring and illuminating part. The connecting sleeve is used for being connected with a bending machine head, and the insulating sleeve is used for being connected with a bending machine handle. The two ends of the handle ring are respectively provided with a limiting part of the connecting part, the insulating sleeve is connected with the connecting part, the connecting sleeve is positioned on the inner side of the handle ring, and the two ends of the connecting sleeve are respectively abutted against the limiting part and the insulating sleeve so as to limit the connecting sleeve between the insulating sleeve and the limiting part. Because the connecting sleeve realizes the location through the butt of axial both ends and spacing portion and insulating sleeve, consequently the connecting sleeve can rotate handle ring and insulating sleeve relatively, and then realizes the rotation of the relative bender handle of bender head when using. The connecting sleeve is provided with an installation space and a first opening communicated with the installation space. The illuminating part is installed in the installation space, and the first opening is used for making the optic fibre and the installation space intercommunication of bender head, and the light that so illuminating part sent gets into optic fibre through first opening to transmit in optic fibre, in order to throw light on. The light emitting member is electrically connected with the conductive ring to supply power to the light emitting member through the conductive ring. And because the conducting ring is cyclic annular, consequently when the luminous part rotates along with the relative conducting ring of adapter sleeve, luminous part and conducting ring switch on all the time, and then when the bender head carries out 360 rotations, first opening is corresponding with optic fibre all the time to guarantee the light transmission effect, at this in-process moreover, the conducting ring switches on with luminous part all the time, provides the electric energy to luminous part. The connecting structure of the bending machine has the built-in light source, the lighting effect of the built-in light source can be enhanced, meanwhile, the bending machine head can rotate 360 degrees relative to the bending machine handle, the lighting function is not affected when the bending machine head rotates, and the connecting structure is convenient to use and good in effect.

The embodiment of the utility model also provides a dental bending machine, it includes foretell bending machine connection structure. Since the dental bending machine comprises the bending machine connecting structure, the dental bending machine has all the advantages of the bending machine connecting structure.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a dental handpiece according to an embodiment of the present invention;

fig. 2 is an exploded schematic view of a bending machine connection structure according to an embodiment of the present invention;

fig. 3 is a schematic cross-sectional view of a connecting structure of a bending machine according to an embodiment of the present invention at a first position;

fig. 4 is a schematic structural view of a bending head in a dental bending handpiece according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a handle fixing ring in the connecting structure of the bending machine according to the embodiment of the present invention;

fig. 6 is a schematic structural view of an insulating sleeve in a connecting structure of a bending machine according to an embodiment of the present invention;

fig. 7 is a schematic structural view of a conductive elastic sheet in a connecting structure of a bending machine according to an embodiment of the present invention;

fig. 8 is a schematic cross-sectional view of a connecting structure of a bending machine at a second position according to an embodiment of the present invention.

Icon: 10-dental handpieces; 100-a bender connection structure; 110-a connecting sleeve; 111-handle retainer ring; 1111-a first fastening part; 1112-a groove; 1113-second opening; 1114-a positioning groove; 1115-convex columns; 1116-a first mounting projection; 112-a fastener; 1121 — a first opening; 1122-pin hole; 113-installation space; 120-handle ring; 121-a connecting part; 122-a limiting part; 130-an insulating sleeve; 131-external threads; 132-a second mounting boss; 133-slot; 134-bolt holes; 141-a first conductive ring; 142-a second conductive loop; 143-insulating ring; 144-an annular space; 151-a light emitting member; 153-second conductive line; 154-a wire; 155-circuit board connection lines; 160-conductive spring plate; 161-linker arm; 162-a resilient arm; 163-bending; 170-motor connection; 200-bending a machine head; 210-a bender head housing; 211-a second fiber hole; 212-a third opening; 220-input gearbox; 221-a first fiber hole; 230-an optical fiber; 300-bending machine handle.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that, if the terms "upper", "lower", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the products of the present invention are used, the description is only for convenience of description and simplification, but the indication or suggestion that the indicated device or element must have a specific position, be constructed and operated in a specific orientation, and thus, should not be interpreted as a limitation of the present invention.

Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.

Fig. 1 is a schematic structural diagram of a dental bender 10 according to the present embodiment, fig. 2 is an exploded structural diagram of a bender connection structure 100 according to the present embodiment, and fig. 3 is a schematic sectional structural diagram of the bender connection structure 100 according to the present embodiment at a first position. Referring to fig. 1-3 in combination, the present embodiment provides a bending machine attachment structure 100 and, accordingly, a dental bending tool 10.

The dental bender 10 includes a bender attachment structure 100, while the dental bender 10 further includes a bender head 200 and a bender handle 300. The bending machine head 200 and the bending machine handle 300 are respectively positioned at two sides of the bending machine connecting structure 100, the connecting sleeve 110 of the bending machine connecting structure 100 is connected with the bending machine head 200, and the insulating sleeve 130 of the bending machine connecting structure 100 is connected with the bending machine handle 300.

The bender connecting structure 100 includes a connecting sleeve 110, an insulating sleeve 130, a handle ring 120, a conductive ring and a light emitting member 151. The connection sleeve 110 is used to connect with the bending machine head 200 and the insulation sleeve 130 is used to connect with the bending machine handle 300. The two ends of the handle ring 120 are respectively provided with a limiting part 122 of the connecting part 121, the insulating sleeve 130 is connected with the connecting part 121, the connecting sleeve 110 is located on the inner side of the handle ring 120, and the two ends of the connecting sleeve 110 are respectively abutted against the limiting part 122 and the insulating sleeve 130, so that the connecting sleeve 110 is limited between the insulating sleeve 130 and the limiting part 122. Because the connecting sleeve 110 is positioned by the abutting of the two axial ends with the limiting part 122 and the insulating sleeve 130, the connecting sleeve 110 can rotate relative to the handle ring 120 and the insulating sleeve 130, and further the rotation of the bender head 200 relative to the bender handle 300 is realized during use. The connection sleeve 110 is provided with an installation space 113 and a first opening 1121 communicating with the installation space 113. The light emitting member 151 is installed in the installation space 113, and the first opening 1121 is used to communicate the optical fiber 230 of the bender head 200 with the installation space 113, so that light emitted from the light emitting member 151 enters the optical fiber 230 through the first opening 1121 and is transmitted in the optical fiber 230 for illumination.

The light emitting member 151 is electrically connected to the conductive ring to supply power to the light emitting member 151 through the conductive ring. Moreover, since the conductive ring is annular, when the light emitting member 151 rotates with the connection sleeve 110 relative to the conductive ring, the light emitting member 151 and the conductive ring are always conducted, and further when the bending head 200 rotates 360 degrees, the first opening 1121 always corresponds to the optical fiber 230, so as to ensure the light transmission effect, and in this process, the conductive ring is always conducted with the light emitting member 151, so as to provide electric energy to the light emitting member 151. This bender connection structure 100 has built-in light source, and its illuminating effect can be strengthened to built-in light source, and simultaneously the bender head 200 can carry out 360 rotations relatively the bender handle 300, and at the rotation in-process, the illumination function is not influenced, convenient to use, effectual.

The dental bender 10 provided in this embodiment is further described below:

fig. 4 is a schematic structural view of a bending head 200 of the dental bending handpiece 10 according to the present embodiment. Referring to fig. 1 and 4, in the present embodiment, the bending machine head 200 includes an optical fiber 230, a bending machine head housing 210 and an input gearbox 220, the input gearbox 220 is connected to the connecting sleeve 110, the bending machine head housing 210 is fixedly connected to a side of the input gearbox 220 far away from the connecting sleeve 110, that is, the bending machine head housing 210 is connected to the bending machine connecting structure 100 through the input gearbox 220. The input gear box 220 is provided with a first optical fiber hole 221, the bender head shell 210 is provided with a second optical fiber hole 211, the first optical fiber hole 221 is communicated with the second optical fiber hole 211 to form an installation channel of the optical fiber 230, namely when the optical fiber 230 is installed in the installation channel, one part of the optical fiber 230 is located in the first optical fiber hole 221, and the other part of the optical fiber 230 is located in the second optical fiber hole 211, so that the optical fiber 230 can be well protected, and the bender head shell has a good waterproof effect.

The end of the second fiber hole 211 remote from the first fiber hole 221 has a third opening 212 through the bender head housing 210, and light transmitted by the optical fiber 230 exits through the third opening 212 for illumination. Specifically, the third opening 212 is disposed near the working end of the bender head 200, and the third opening 212 is located on a sidewall of the bender head housing 210. The first optical fiber hole 221 is a through hole having two ends penetrating through the input gear box 220, one end of the through hole is communicated with the second optical fiber hole 211, and the other end of the through hole corresponds to the first opening 1121 of the bender connecting structure 100, so that one end of the optical fiber 230 can receive light emitted from the light emitting member 151 in the installation space 113. Optionally, the optical fiber 230 is inserted into the installation space 113 through the first opening 1121 to ensure stable transmission of light.

Fig. 5 is a schematic structural view of a handle fixing ring 111 in the connecting structure 100 of the bending machine according to the present embodiment. Referring to fig. 1 to 5, in the present embodiment, the connection sleeve 110 includes a fastener 112 and a handle fixing ring 111. A groove 1112 is opened at one side of the handle fixing ring 111, and the fastener 112 is fastened with the handle fixing ring 111 to form a mounting space 113 with the groove 1112. The first opening 1121 is opened in the fastener 112, and when the fastener 112 is fastened to the handle fixing ring 111, the first opening 1121 is communicated with the installation space 113. The two ends of the handle fixing ring 111 are respectively abutted against the limiting part 122 and the insulating sleeve 130.

Specifically, the handle fixing ring 111 and the fastener 112 are both ring-shaped members. The end face of the handle fixing ring 111 near the fastener 112 is provided with a first fastening portion 1111, and the first fastening portion 1111 is an annular protruding structure arranged along the outer edge of the end face. The outer edge of one end of the fastener 112 is provided with a second fastening portion, which is fastened with the first fastening portion 1111, so that the handle fixing ring 111 is connected with the fastener 112, and meanwhile, the fastener 112 contacts with the end surface of the handle fixing ring 111 to form an installation space 113 with the groove 1112. The through hole formed in the fastener 112 serves as the first opening 1121 to communicate with the mounting space 113, and the cross-sectional area of the first opening 1121 is smaller than that of the mounting space 113, so that the light-emitting member 151 is limited in the mounting space 113, and the end of the optical fiber 230 can extend into the mounting space 113 through the first opening 1121, so that when the optical fiber 230 rotates along with the bending head 200, the handle fixing ring 111 and the optical fiber 230 rotate synchronously, and the optical fiber 230 keeps good transmission of light emitted by the light-emitting member 151. Optionally, the light emitting member 151 is an LED lamp.

The upper end surface of the first fastening portion 1111 is located on the radial outer side of the fastener 112, so that a stepped portion is formed between the upper end surface of the first fastening portion 1111 and the outer peripheral surface of the fastener 112, and the stepped portion abuts against the stopper portion 122 to limit the axial position of the handle fixing ring 111.

In this embodiment, the connecting sleeve 110 has a pin hole 1122, and the bending machine connecting structure 100 further includes a pin (not shown) installed in the pin hole 1122 for connecting with the bending machine head 200, so that the connection between the bending machine head 200 and the connecting sleeve 110 is realized through the pin. Specifically, the pin hole 1122 is opened in the fastener 112, and the input gear box 220 of the bending machine head 200 is provided with a corresponding hole, so that the fastener 112 and the input gear box 220 are fixedly connected and positioned by a pin.

In the present embodiment, the connection sleeve 110 is provided with a first mounting protrusion 1116, and the first mounting protrusion 1116 abuts against the insulation sleeve 130. The insulating sheath 130 is formed with a second mounting protrusion 132, and the second mounting protrusion 132 is spaced apart from the first mounting protrusion 1116 to form an annular space 144 between the first mounting protrusion 1116 and the second mounting protrusion 132 for accommodating the conductive ring. The connection sleeve 110 is provided with a second opening 1113 communicating the annular space 144 and the installation space 113, and the conducting wire 154 of the light emitting member 151 passes through the second opening 1113 to be electrically connected with the conducting ring.

Fig. 6 is a schematic structural diagram of the insulating sleeve 130 in the connecting structure 100 of the bending machine according to the embodiment. Referring to fig. 1 to fig. 6, specifically, a first mounting protrusion 1116 is disposed on an outer edge of an end surface of the handle fixing ring 111 away from the fastener 112, and the first mounting protrusion 1116 is an annular protrusion formed by protruding an outer edge portion of the end surface of the handle fixing ring 111 outward in the axial direction. The outer peripheral surface of the first mounting protrusion 1116 and the outer peripheral surface of the first hooking portion 1111 are coplanar. The insulating sleeve 130 is a ring-shaped member, and the insulating sleeve 130, the handle ring 120 and the connecting sleeve 110 are coaxially arranged. The insulating sleeve 130 is provided with an external thread 131 on a radially outer peripheral wall thereof, and the connecting portion 121 of the handle ring 120 is an internal thread provided on an inner peripheral surface of the handle ring 120, the internal thread being screwed with the external thread 131 to fixedly connect the insulating sleeve 130 to the handle ring 120. The end face of the insulating sleeve 130 close to one side of the handle fixing ring 111 abuts against the end face of the first mounting protrusion 1116 far away from one end of the fastener 112, so that the handle fixing ring 111 is limited by the combined action of the insulating sleeve 130 and the limiting part 122.

Because the handle fixing ring 111, the insulating sleeve 130 and the limiting portion 122 are all annular, and the insulating sleeve 130 and the limiting portion 122 only limit the axial position of the handle fixing ring 111, the handle fixing ring 111 can move relative to the insulating sleeve 130 and the limiting portion 122 in the circumferential direction, in other words, the handle fixing ring 111 and the fastener 112 fastened thereon can rotate 360 degrees around the axis relative to the insulating sleeve 130 and the handle ring 120, so that the 360-degree rotation of the bender head 200 relative to the bender handle 300 is realized.

The inner edge of the end surface of the insulating bush 130 on the side close to the handle fixing ring 111 is axially outwardly convex as a ring-shaped second mounting projection 132. The second mounting protrusion 132 and the first mounting protrusion 1116 are spaced apart in a radial direction, so that an annular space 144 is formed between the first mounting protrusion 1116 and the second mounting protrusion 132. The conductive ring is installed in the annular space 144 and is disposed coaxially with the annular space 144, i.e., the conductive ring is disposed on the second installation protrusion 132.

In this embodiment, the bending machine connecting structure 100 further includes two insulating rings 143, where the two conductive rings are the first conductive ring 141 and the second conductive ring 142 respectively. The insulating ring 143 is disposed between the first conductive ring 141 and the second conductive ring 142 to prevent the first conductive ring 141 and the second conductive ring 142 from being conducted. The light emitting element 151 is provided with a first conductive wire and a second conductive wire 153, the first conductive wire is electrically connected to the first conductive ring 141, and the second conductive wire 153 is electrically connected to the second conductive ring 142. And when the light emitting member 151 rotates along with the connection sleeve 110, the first conductive wire is always conducted with the first conductive ring 141, and the second conductive wire 153 is always conducted with the second conductive ring 142, so that the light emitting stability of the light emitting member 151 can be ensured in the rotation process of the bender head 200. Specifically, the first conductive ring 141, the second conductive ring 142 and the insulating ring 143 are coaxially disposed, and the first conductive ring 141, the insulating ring 143 and the second conductive ring 142 are sequentially disposed along an axial direction of the annular space 144.

Fig. 7 is a schematic structural diagram of the conductive elastic piece 160 in the connecting structure 100 of the bending machine according to the embodiment. Referring to fig. 1 to 7, in the present embodiment, the bending machine connecting structure 100 further includes a conductive elastic piece 160, and the conductive elastic piece 160 is fixedly connected to the first mounting protrusion 1116 so as to rotate synchronously with the handle fixing ring 111 when the handle fixing ring 111 rotates. One end of the conductive elastic piece 160 is connected to the conductive wire 154, and the other end abuts against the conductive ring, so as to achieve electrical connection between the conductive wire 154 and the conductive ring. Specifically, the conductive wires 154 include a first conductive wire and a second conductive wire 153, and accordingly, the number of the conductive elastic pieces 160 is two, the first conductive wire is electrically connected to the first conductive ring 141 through one of the conductive elastic pieces 160, and the second conductive wire 153 is electrically connected to the second conductive ring 142 through the other conductive elastic piece 160.

Further, the conductive elastic piece 160 includes a connecting arm 161 and an elastic arm 162 connected to each other, the conductive wire 154 is connected to the connecting arm 161, and the elastic arm 162 tightly contacts the conductive ring, so as to electrically connect the conductive wire 154 and the conductive ring. Because the elastic arm 162 has elasticity, it can ensure good contact with the conductive ring under the effect of elastic force in the rotation process, ensuring the conductive effect. Specifically, the connecting arm 161 and the elastic arm 162 are connected to each other to form a V-shaped conductive elastic piece 160. Alternatively, the connecting arm 161 and the elastic arm 162 are integrally formed by bending. Further, the conductive elastic piece 160 further includes two bends 163 disposed on the connecting arm 161, and the two bends 163 are disposed on two sides of the connecting arm 161 oppositely to enclose the conductive wire 154, so as to achieve the positioning of the conductive wire 154.

Further, the first mounting protrusion 1116 is further provided with a positioning groove 1114 communicating with the second opening 1113 and a protruding column 1115 disposed in the positioning groove 1114. The conductive wire 154 and the connecting arm 161 of the conductive elastic piece 160 are connected to the post 1115 to position the conductive elastic piece 160. Specifically, the connecting arm 161 is provided with a locking hole, and the convex column 1115 penetrates through the locking hole to be connected with the connecting arm 161.

Fig. 8 is a schematic cross-sectional view of the connecting structure 100 of the bending machine in the second position according to the present embodiment. Referring to fig. 1 to 8, in the present embodiment, the second mounting protrusion 132 is provided with a notch 133 extending along the axial direction of the second mounting protrusion 132. The bender connection structure 100 further comprises a circuit board connection line 155, one end of the circuit board connection line 155 is located in the notch 133 and electrically connected to the conductive ring; the other end of the circuit board connection line 155 is used to extend out of the insulation cover 130 to be connected with a circuit board (not shown).

Specifically, the bending machine connecting structure 100 further includes a motor connecting member 170. One end of the motor connector 170 is inserted into the insulating sleeve 130, and the other end is used for connecting with a motor (not shown). Specifically, the bender handle 300 includes a handle housing and a motor and circuit board disposed within the handle housing. The insulating sleeve 130 is provided with a bolt hole 134, one end of the handle shell is fixedly connected with the insulating sleeve 130 through a bolt, and one end of the motor connecting piece 170, which is positioned in the handle shell, is connected with the motor. The motor connector 170 is provided with a notch communicated with the notch 133, and the other end of the circuit board connecting wire 155 is arranged in the notch, extends out of the insulating sleeve 130 along the notch, further extends into the handle shell, and is connected with a circuit board in the handle shell.

According to the dental bender 10 provided in the present embodiment, the working principle of the dental bender 10 is as follows:

the circuit board, the circuit board connection wire 155, the first conductive ring 141, the second conductive ring 142, the first conductive wire, the second guide and the light emitting member 151 form a conductive loop, when the circuit board supplies power to the light emitting member 151, the light emitting member 151 emits light, and light emitted from the light emitting member 151 is transmitted through the optical fiber 230 and emitted from the third opening 212, thereby illuminating and facilitating observation during operation. Meanwhile, the operation position is changed by rotating the bender head 200 during the use process, when the bender head 200 rotates relative to the bender handle 300, the bender head 200 drives the fastener 112 and the handle fixing ring 111 to rotate synchronously, so that one end of the optical fiber 230 penetrates through the first opening 1121 all the time to be located in the installation space 113, and the optical fiber 230 transmits the light emitted by the light emitting member 151. When the handle fixing ring 111 rotates, the first conductive wire, the second conductive wire 153 and the two conductive elastic pieces 160 rotate synchronously, and the elastic piece arms of the conductive elastic pieces 160 abut against the conductive rings, so as to ensure the conductive stability of the first conductive wire and the first conductive ring 141 and the conductive stability of the second conductive wire 153 and the second conductive ring 142. Thus, the lighting effect is not affected during the rotation of the bending head 200.

The bending machine connecting structure 100 provided by the embodiment has at least the following advantages:

the internal light-emitting member 151 that has in the bender connection structure 100 that this embodiment provided to throw light on in the operation use, because light-emitting member 151 is built-in, can strengthen its illuminating effect simultaneously, prevent the external inconvenient problem of observation that causes of light source. The light emitted by the built-in light-emitting member 151 is transmitted through the optical fiber 230 on the bending head 200, and the optical fiber 230 is arranged inside the bending head 200, so that the optical fiber 230 can be well protected during cleaning, and a good waterproof effect is achieved. The connecting sleeve 110 is limited between the limiting part 122 and the insulating sleeve 130 through the interference of the two axial sides, the connecting sleeve 110 can rotate 360 degrees relative to the insulating sleeve 130, so that the bender head 200 connected to the connecting sleeve 110 can rotate 360 degrees relative to the bender handle 300 connected to the insulating sleeve 130, meanwhile, the bender connecting structure 100 is provided with a conducting ring, and the conducting ring is electrically connected with the conducting wire 154 of the light-emitting piece 151 through the conducting elastic piece 160, the conducting stability of the light-emitting piece 151 when rotating along with the connecting sleeve 110 is ensured, and further, the lighting effect is not influenced by rotation. Meanwhile, the bending machine connecting structure 100 is simple in structure and easy to assemble.

This embodiment also provides a dental bender 10 that includes the bender attachment structure 100 described above, and thus has all of the benefits of the bender attachment structure 100.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A bending machine connecting structure is used for connecting a bending machine head and a bending machine handle and is characterized by comprising a connecting sleeve, an insulating sleeve, a handle ring, a conducting ring and a light-emitting part, wherein the connecting sleeve is used for being connected with the bending machine head, and the insulating sleeve is used for being connected with the bending machine handle; the handle ring is characterized in that a connecting part and a limiting part are respectively arranged at two ends of the handle ring, the insulating sleeve is connected with the connecting part, the connecting sleeve is positioned at the inner side of the handle ring, and the two ends of the connecting sleeve are respectively abutted against the limiting part and the insulating sleeve so as to limit the connecting sleeve between the insulating sleeve and the limiting part;

the connecting sleeve is provided with an installation space and a first opening communicated with the installation space, the light-emitting piece is installed in the installation space, and the first opening is used for communicating the optical fiber of the bending machine head with the installation space; the light-emitting piece is electrically connected with the conducting ring, and when the light-emitting piece rotates along with the connecting sleeve relative to the conducting ring, the light-emitting piece is always conducted with the conducting ring.

2. The bending machine connecting structure according to claim 1, wherein the connecting sleeve comprises a fastener and a handle fixing ring, a groove is formed in one end of the handle fixing ring, and the fastener is fastened with the handle fixing ring to form the mounting space with the groove; the first opening is arranged on the fastener; the two ends of the handle fixing ring are respectively abutted with the limiting part and the insulating sleeve.

3. The bending machine connecting structure according to claim 1, wherein the connecting sleeve is provided with a first mounting projection which abuts against the insulating sleeve; the insulating sleeve is provided with a second mounting protrusion, and the second mounting protrusion and the first mounting protrusion are arranged at intervals to form an annular space for accommodating the conducting ring; the connecting sleeve is provided with a second opening communicated with the annular space and the mounting space, and a lead of the light-emitting piece penetrates through the second opening to be electrically connected with the conducting ring.

4. The bender connection structure according to claim 3, further comprising an insulating ring, said conductive rings including a first conductive ring and a second conductive ring, said insulating ring being disposed between said first conductive ring and said second conductive ring to isolate said first conductive ring from said second conductive ring; the wire includes first wire and second wire, first wire with first conducting ring electricity is connected, the second wire with the second conducting ring electricity is connected, and is in the illuminating part along with the adapter sleeve is relative when the conducting ring rotates, first wire with first conducting ring switches on all the time, the second wire with the second conducting ring switches on all the time.

5. The bending machine connecting structure according to claim 3, further comprising a conductive spring, wherein the conductive spring is fixedly connected to the first mounting protrusion; one end of the conductive elastic sheet is connected with the lead, and the other end of the conductive elastic sheet is tightly propped against the conductive ring.

6. The connecting structure of the bending machine according to claim 5, wherein the first mounting protrusion is provided with a positioning groove communicated with the second opening and a convex pillar arranged in the positioning groove, the conductive elastic sheet comprises a connecting arm and an elastic arm which are connected with each other, the lead and the connecting arm are both connected to the convex pillar to position the conductive elastic sheet, and the lead is in conductive contact with the connecting arm; the elastic arm is abutted against and contacted with the conducting ring.

7. The bending machine connecting structure according to claim 3, wherein the second mounting protrusion is provided with a notch extending in the axial direction of the second mounting protrusion, and the bending machine connecting structure further comprises a circuit board connecting wire; one end of the circuit board connecting wire is located in the notch and electrically connected with the conducting ring, and the other end of the circuit board connecting wire is used for extending out of the insulating sleeve to be connected with the circuit board.

8. The bending machine connecting structure according to any one of claims 1 to 7, wherein a pin hole is formed in the connecting sleeve, and the bending machine connecting structure further comprises a pin installed in the pin hole, and the pin is used for being connected with the bending machine head.

9. A dental bender, characterized in that it comprises a bender head, a bender handle and a bender attachment structure according to any of claims 1-8; the bending machine head is connected with a connecting sleeve of the bending machine connecting structure, and the bending machine handle is connected with an insulating sleeve of the bending machine connecting structure.

10. A dental bender as claimed in claim 9, wherein the bender head comprises an optical fibre, a bender head housing and an input gearbox, the input gearbox being connected to the connecting sleeve, the bender head housing being fixedly connected to a side of the input gearbox remote from the connecting sleeve; the optical fiber bending machine is characterized in that a first optical fiber hole is formed in the input gear box, a second optical fiber hole is formed in the bending machine head shell, the first optical fiber hole and the second optical fiber hole are communicated to form an installation channel of optical fibers, one end, far away from the first optical fiber hole, of the second optical fiber hole is provided with a third opening penetrating through the bending machine head shell, and the third opening is used for enabling light transmitted by the optical fibers to be emitted out for illumination.

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