CN219207377U

CN219207377U - Dental speed-increasing bending machine convenient to maintain

Info

Publication number: CN219207377U
Application number: CN202320572778.4U
Authority: CN
Inventors: 黄家炽; 陈基绵
Original assignee: Modern Precision Dental Instruments Co ltd
Current assignee: Modern Precision Dental Instruments Co ltd
Priority date: 2023-03-21
Filing date: 2023-03-21
Publication date: 2023-06-20
Anticipated expiration: 2033-03-21

Abstract

The application discloses a dental acceleration rate bending machine convenient to maintain belongs to the field of dental surgical instruments. The utility model provides a dental department speed increasing bender of convenient maintenance, including fuselage and aircraft nose, aircraft nose fixedly connected with axle sleeve, the aircraft nose transmission is connected with and rotates the well pivot of installing in the axle sleeve, the fuselage includes down the shell, fixedly connected in the last shell of aircraft nose and fixedly connected in down shell and last shell between the inner shell, shell and inner shell are worn to locate down to the axle sleeve, rotatory cover is installed to the outside rotatable of inner shell, the locking piece is installed to the inner shell, the locking groove has been seted up to the axle sleeve lateral wall, drive locking piece embedding locking groove or supply the locking piece to leave the locking groove when rotatory cover is rotatory, the locating part is installed to the inner shell cover, the locating part is provided with to the rotatory cover, the locating part is stopped to the locating part when rotatory cover is rotatory. The dental bending machine maintenance device has the advantage of being convenient to maintain and operate.

Description

Dental speed-increasing bending machine convenient to maintain

Technical Field

The application relates to the field of dental surgical instruments, in particular to a dental acceleration rate bending machine convenient to maintain.

Background

The dental bending machine is one of dental handpieces, belongs to a common dental operation instrument, is used for cutting or expanding hard tissues in an oral cavity, and along with the improvement of the complexity of dental operation, the use frequency and the variety alternation of the dental bending machine are also continuously improved.

One of the important components in the dental bending machine is a machine head, the machine head is used as a power output structure of the dental bending machine, a dental drill is generally installed, and the dental drill is driven to rotate through a power transmission structure in the dental bending machine, so that various operation operations are realized.

The machine head is usually fixedly connected to the machine body of the dental bending machine, and when parts inside the machine head need to be replaced or maintained, the machine body of the whole dental bending machine needs to be disassembled to separate the machine head from the machine body, and then the machine head is further replaced or maintained, so that the operation is troublesome.

Disclosure of Invention

In order to facilitate maintenance operation of the dental bending machine, the application provides a dental speed-increasing bending machine which is convenient to maintain.

The dental acceleration rate bending machine convenient to maintain adopts the following technical scheme:

the utility model provides a dental acceleration rate bender convenient to maintain, includes fuselage and aircraft nose, aircraft nose fixedly connected with axle sleeve, the aircraft nose transmission be connected with rotate install in the transfer axle of axle sleeve, the fuselage include down shell, fixed connection in the last shell of aircraft nose and fixed connection in down shell with go up the inner shell between the shell, the axle sleeve wear to locate down shell with the inner shell, the rotatable cover of installing in the inner shell outside, the locking piece is installed to the inner shell, the locking groove has been seted up to the axle sleeve lateral wall, the rotatory cover drives the locking piece embedding or confession the locking piece leaves the locking groove when rotatory, the locating part is installed to the inner shell, rotatory cover is provided with the locating part, rotatory cover is rotatory when the locating part stops the locating part.

By adopting the technical scheme, the rotating sleeve is matched with the locking piece and the limiting piece, and the state switching of the locking piece entering or leaving the locking groove is realized through the rotating action of the rotating sleeve, namely the locking state switching of the shaft sleeve and the inner shell sleeve is realized, so that the shaft sleeve and the machine head can be separated from the machine body together after the shaft sleeve is unlocked, and the maintenance of the parts of the machine head and the centering rotating shaft is facilitated; the blocking action of the limiting piece and the limiting part can realize the function of limiting the rotation angle of the rotating sleeve, reduce the occurrence of the condition that the rotating sleeve and the locking piece are damaged due to the too strong rotation of the rotating sleeve, and improve the operation stability when the locking state of the machine head is switched.

Optionally, the spacing portion is followed the spacing inner edge that the inner wall circumference of swivel sleeve set up, spacing inner edge with the inner shell cover butt, spacing inner edge's tip with the locating part butt.

Through adopting above-mentioned technical scheme, the spacing inner edge rotates around the inner shell cover, when spacing inner edge and locating part butt, can realize that the locating part blocks spacing portion to prevent the rotating sleeve to continue to rotate, keep the stable in structure of rotating sleeve.

Optionally, the end of the limiting inner edge is arranged in a bevel.

Through adopting above-mentioned technical scheme, the setting mode of hypotenuse makes the spacing inner edge more mild to the blocking of locating part, reduces the circumstances that the collision leads to damaging.

Optionally, the spacing portion is for setting up in the spacing lug of the inner wall of swivel cap, spacing lug with the locating part butt.

Through adopting above-mentioned technical scheme, spacing lug rotates around the inner shell cover, when spacing lug and locating part butt, can realize that the locating part blocks spacing portion to prevent the rotating sleeve to continue to rotate, keep the stable in structure of rotating sleeve.

Optionally, the locating part is the limit ball, the inner shell cover is offered and is supplied the limit ball is placed and rotatable mounting's spacing groove.

By adopting the technical scheme, the friction between the limiting ball and the rotating sleeve is small, and the abrasion caused by long-term friction between the limiting piece and the rotating sleeve can be reduced.

Optionally, a yielding groove is formed in the inner wall of the rotary sleeve along the circumferential direction; the opening depth of the abdication groove is gradually increased along the extending direction of the abdication groove; the relief groove accommodates the locking member.

By adopting the technical scheme, when the position with small abdication groove depth is aligned with the locking piece, only a small part of the locking piece enters the abdication groove, and at the moment, the locking piece is partially embedded in the locking groove, so that the locking of the shaft sleeve is realized; when the position with the large abdication groove depth is aligned with the locking piece, the locking piece can enable the larger volume part to enter the abdication groove, and the locking piece can leave the locking groove to unlock the shaft sleeve.

Optionally, the locking piece is the locking ball, the inner shell cover is offered and is supplied the locking ball places and the mounting groove that removes.

By adopting the technical scheme, the friction born by the locking ball is small, and the movement in the mounting groove and the yielding groove is easier.

Optionally, a torsion spring is connected between the rotary sleeve and the inner shell sleeve.

By adopting the technical scheme, the automatic resetting of the rotary sleeve is realized, and the operation is convenient.

Optionally, the aircraft nose fixedly connected with connection shell, the connection shell cover is located the axle sleeve, the connection shell is connected with the locating piece, the constant head tank that supplies the locating piece joint has been seted up to the tip of interior shell.

By adopting the technical scheme, the positioning block is clamped with the positioning groove, so that the connection stability of the machine head and the machine body is further improved.

In summary, the present application has the following beneficial effects:

1. the rotary sleeve is matched with the locking piece and the limiting piece, and the state switching of the locking piece entering or leaving the locking groove is realized through the rotary action of the rotary sleeve, namely the locking state switching of the shaft sleeve and the inner shell sleeve is realized, so that the shaft sleeve and the machine body can be separated together after the shaft sleeve is unlocked, and the maintenance of parts of the machine head and the centering rotating shaft is facilitated; the blocking action of the limiting piece and the limiting part can realize the function of limiting the rotation angle of the rotating sleeve, reduce the occurrence of the condition that the rotating sleeve and the locking piece are damaged due to the too strong rotation of the rotating sleeve, and improve the operation stability when the locking state of the machine head is switched.

2. The limiting piece of the rotating sleeve is a limiting inner edge, the limiting inner edge rotates around the inner shell sleeve, and when the limiting inner edge is in butt joint with the limiting piece, the limiting piece can block the limiting part, so that the rotating sleeve is prevented from continuously rotating, and the structural stability of the rotating sleeve is kept.

Drawings

Fig. 1 is a schematic perspective view of embodiment 1 of the present application.

Fig. 2 is an exploded view of the handpiece of example 1 of the present application when detached.

Fig. 3 is a schematic cross-sectional structure of the fuselage and the nose of embodiment 1 of the present application.

Fig. 4 is a schematic cross-sectional view of the rotary cover and the locking member according to embodiment 1 of the present application.

Fig. 5 is a schematic cross-sectional view of the rotary cover and the stopper according to embodiment 1 of the present application.

Fig. 6 is a schematic cross-sectional view of the rotary cover and the stopper according to embodiment 2 of the present application.

Reference numerals illustrate:

1. a machine head; 11. a connection housing; 12. a shaft sleeve; 13. a middle rotating shaft; 2. a lower shell; 21. an upper shell; 22. an inner shell; 23. a rotating sleeve; 24. a positioning block; 25. a positioning groove; 3. a locking ball; 31. a mounting groove; 32. a locking groove; 33. a relief groove; 4. a limit ball; 41. a limit groove; 42. a limit inner edge; 5. a receiving groove; 51. a torsion spring; 6. and a limit bump.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-6.

The embodiment of the application discloses a dental acceleration rate bending machine convenient to maintain.

Example 1

As shown in fig. 1, the dental accelerating bending machine convenient to maintain comprises a machine body and a machine head 1, wherein the machine body comprises an upper shell 21 and a lower shell 2, the upper shell 21 is fixedly connected with the machine head 1, power transmission mechanisms are arranged in the machine head 1 and the lower shell 2, and the power transmission mechanisms of the machine head 1 and the lower shell 2 are in transmission connection so as to realize power output of the machine head 1.

As shown in fig. 2 and 3, the fuselage further comprises an inner shell 22, the inner shell 22 being fixedly connected between the upper shell 21 and the lower shell 2; the machine head 1 is fixedly connected with a shaft sleeve 12, the power transmission mechanism of the machine head 1 and the lower shell 2 is in transmission connection through a middle rotating shaft 13, the shaft sleeve 12 is sleeved on the middle rotating shaft 13, the middle rotating shaft 13 is rotatably arranged on the shaft sleeve 12 through a bearing, and the shaft sleeve 12 is arranged on the upper shell 21, the inner shell 22 and the lower shell 2 in a penetrating mode.

The aircraft nose 1 still fixedly connected with coupling shell 11, coupling shell 11 cover locates axle sleeve 12, and coupling shell 11 keeps away from the one end fixedly connected with locating piece 24 of aircraft nose 1, and locating piece 24 symmetry is provided with two in this embodiment, and locating slot 25 has been seted up to the tip of interior shell 22, and locating piece 24 joint is in locating slot 25, restricts the rotation of aircraft nose 1, when axle sleeve 12 installs in the fuselage, makes the junction position of axle sleeve 12 and interior shell 22 remain stable.

As shown in fig. 3 and 4, the side wall of the inner shell 22 is provided with a mounting groove 31 in a penetrating manner, the mounting groove 31 is provided with a locking piece, the locking piece is a locking ball 3, the locking ball 3 is specifically made of steel balls, and the locking ball 3 is movably mounted in the mounting groove 31; the side wall of the sleeve 12 is provided with a locking groove 32, and when the locking ball 3 is embedded in the locking groove 32, the locking ball 3 limits the movement of the sleeve 12, thereby locking the sleeve 12 and the handpiece 1.

The rotary sleeve 23 is rotatably arranged outside the inner shell 22, the yielding groove 33 is formed in the inner wall of the rotary sleeve 23, the yielding groove 33 extends along the circumferential direction to form a half round edge, and the forming depth of the yielding groove 33 is gradually increased along the extending direction of the yielding groove 33. When the sleeve 12 is locked, the locking ball 3 passes through the mounting groove 31 and is embedded in the locking groove 32, the locking ball 3 is positioned in the yielding groove 33, and the locking ball 3 is blocked by the side wall of the yielding groove 33 and cannot move. When maintenance is needed, the rotary sleeve 23 is rotated, the position of the yielding groove 33 relative to the locking ball 3 is changed, so that the part with large opening depth of the yielding groove 33 is aligned to the locking ball 3, at the moment, the side wall of the yielding groove 33 is spaced from the locking ball 3, more parts of the locking ball 3 can enter the yielding groove 33, and the locking ball 3 can leave the locking groove 32, so that the restriction of the locking ball 3 to the shaft sleeve 12 is relieved, and the disassembly and maintenance are completed.

As shown in fig. 3 and 5, the inner shell 22 is provided with a limit groove 41, the limit groove 41 is provided with a limit piece, the limit piece is a limit ball 4, the limit ball 4 is specifically made of steel balls, the limit ball 4 is rotatably installed in the limit groove 41, and the limit ball 4 is abutted against the inner wall of the rotary sleeve 23.

The rotating sleeve 23 is provided with a limiting part, and the limiting part is positioned on one side of the abdicating groove 33, which is close to the lower shell 2. In this embodiment, the limiting portion is a limiting inner edge 42, the limiting inner edge 42 is circumferentially arranged along the inner wall of the rotary sleeve 23, and the limiting inner edge 42 is of an unsealed annular structure, so that the limiting inner edge 42 has two ends, the limiting inner edge 42 is abutted with the inner shell sleeve 22, and the limiting ball 4 can move relative to two ends of the limiting inner edge 42. When the shaft sleeve 12 is unlocked, the rotating sleeve 23 rotates and drives the limiting inner edge 42 to rotate until the end part of the limiting inner edge 42 is abutted with the limiting ball 4, and the limiting ball 4 stops the limiting inner edge 42 from continuing to rotate, so that the rotating sleeve 23 is limited to continue to rotate, and the limiting effect is achieved. The end of the limiting inner edge 42 is specifically provided with a bevel edge, so that the blocking of the limiting inner edge 42 is more gentle, and the damage caused by collision is reduced.

The inner wall of the rotary sleeve 23 is annularly provided with the accommodating groove 5, the accommodating groove 5 is internally provided with the torsion spring 51, the torsion spring 51 is sleeved on the inner shell 22, one end pin of the torsion spring 51 is connected with the rotary sleeve 23, the other end pin is connected with the inner shell 22, the rotary sleeve 23 which rotates can automatically reset relative to the inner shell 22 under the action of the torsion spring 51, the position of the rotary sleeve 23 is kept fixed under the natural state of the torsion spring 51, the locking ball 3 is kept to lock the shaft sleeve 12, and the operation of locking or unlocking the shaft sleeve 12 is facilitated.

The implementation principle of the dental acceleration rate bending machine convenient to maintain is as follows:

the rotating sleeve 23 is rotated to drive the limiting inner edge 42 to rotate to be in contact with the limiting ball 4, meanwhile, the yielding groove 33 is provided with a part with large depth to be aligned with the locking ball 3, and the locking ball 3 can be separated from the locking groove 32 of the shaft sleeve 12, so that the limitation of the shaft sleeve 12 is relieved, the machine head 1 can be disassembled, and the maintenance is convenient.

Example 2

As shown in fig. 6, the difference between the present embodiment and embodiment 1 is that the limiting portion is a limiting bump 6, the limiting bump 6 is provided with two opposite ends respectively located on the inner wall of the rotating sleeve 23, and when the shaft sleeve 12 is unlocked, the rotating sleeve 23 rotates and drives the limiting bump 6 to rotate until the limiting bump 6 is stopped by the blocking of the limiting ball 4, so as to stop the rotating sleeve 23 from continuing to rotate, thereby playing a role of limiting.

The present embodiment is merely illustrative of the present application and is not limiting of the present application, and those skilled in the art, after having read the present specification, may make modifications to the present embodiment without creative contribution as necessary, but are protected by patent laws within the scope of the claims of the present application.

Claims

1. The utility model provides a dental speed increasing bender of convenient maintenance which characterized in that: including fuselage and aircraft nose (1), aircraft nose (1) fixedly connected with axle sleeve (12), aircraft nose (1) transmission be connected with rotate install in transit (13) of axle sleeve (12), the fuselage include down shell (2), fixedly connected in last shell (21) and the fixedly connected in down shell (2) with go up shell (22) between shell (21), axle sleeve (12) wear to locate down shell (2) with inner shell (22), rotation sleeve (23) are installed to inner shell (22) outside rotatable, locking piece is installed to inner shell (22), locking groove (32) have been seted up to axle sleeve (12) lateral wall, drive during rotation sleeve (23) locking piece embedding locking groove (32) or confession the locking piece leaves locking groove (32), inner shell (22) are installed the locating part, rotation sleeve (23) are provided with spacing portion, rotation sleeve (23) are rotatory time blocking portion.

2. The dental speed increasing bender convenient for maintenance according to claim 1, wherein: the limiting part is a limiting inner edge (42) circumferentially arranged along the inner wall of the rotary sleeve (23), the limiting inner edge (42) is abutted with the inner shell sleeve (22), and the end part of the limiting inner edge (42) is abutted with the limiting piece.

3. The dental speed increasing bender convenient for maintenance according to claim 2, wherein: the end part of the limiting inner edge (42) is arranged in a bevel edge mode.

4. The dental speed increasing bender convenient for maintenance according to claim 1, wherein: the limiting part is a limiting lug (6) arranged on the inner wall of the rotary sleeve (23), and the limiting lug (6) is in butt joint with the limiting piece.

5. The dental speed increasing bender convenient for maintenance according to claim 1, wherein: the limiting piece is a limiting ball (4), and the inner shell sleeve (22) is provided with a limiting groove (41) which is used for placing and rotatably installing the limiting ball (4).

6. The dental speed increasing bender convenient for maintenance according to claim 1, wherein: an abdication groove (33) is formed in the inner wall of the rotary sleeve (23) along the circumferential direction; along the extending direction of the abdication groove (33), the opening depth of the abdication groove (33) is gradually increased; the relief groove (33) accommodates the locking element.

7. The dental speed increasing bender convenient for maintenance according to claim 6, wherein: the locking piece is a locking ball (3), and the inner shell (22) is provided with a mounting groove (31) for the locking ball (3) to be placed and move.

8. The dental speed increasing bender convenient for maintenance according to claim 1, wherein: a torsion spring (51) is connected between the rotary sleeve (23) and the inner shell sleeve (22).

9. The dental speed increasing bender convenient for maintenance according to claim 1, wherein: the machine head (1) is fixedly connected with a connecting shell (11), the connecting shell (11) is sleeved on the shaft sleeve (12), the connecting shell (11) is connected with a positioning block (24), and the end part of the inner shell sleeve (22) is provided with a positioning groove (25) for clamping the positioning block (24).