CN112338858B - Dental low-speed mobile phone disassembling device - Google Patents
Dental low-speed mobile phone disassembling device Download PDFInfo
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- CN112338858B CN112338858B CN202011411358.5A CN202011411358A CN112338858B CN 112338858 B CN112338858 B CN 112338858B CN 202011411358 A CN202011411358 A CN 202011411358A CN 112338858 B CN112338858 B CN 112338858B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
- B25B27/30—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same positioning or withdrawing springs, e.g. coil or leaf springs
Abstract
The utility model provides a dentistry low-speed cell-phone is torn open and is separated ware, includes first sleeve, offers the first through-hole and the second through-hole of mutual UNICOM in the first sleeve, and the diameter of first through-hole is less than the diameter of second through-hole, and the second sleeve is installed to the fit in first through-hole, and the telescopic bottom of second is equipped with the spacing protruding edge with second through-hole diameter size matched with, and the interior week at second sleeve top is equipped with and pushes down protruding edge, the third sleeve is installed through screw-thread fit in first sleeve bottom, and the interior week of third sleeve bottom is equipped with and pushes up protruding edge. The special NSK dental low-speed handpiece for disassembling the structure recorded in the background technology reduces the disassembly and maintenance time on the premise of not damaging parts and ensures the maintenance quality.
Description
Technical Field
The invention relates to the technical field of dental maintenance equipment, in particular to a dental low-speed handpiece disassembling device.
Background
The dental handpiece is a common medical instrument for stomatology department, the treatment in teeth or oral tissue is realized by clamping various different types of needles, the existing NSK dental low-speed handpiece adopts a structure that a clamping sleeve is matched with a mandrel to clamp the needles, a disc spring applying thrust to the clamping sleeve is fixedly arranged in a limiting groove of a rotating shaft through a snap spring, the installation of a pneumatic motor adopts a pressing ring with threads on the periphery to fix, the whole structure is small and precise, different special tools can be used for each different part when the dental handpiece is disassembled, the actual operation is very troublesome, even a slightly violent disassembling means can be adopted, the parts are easily damaged, the use of the dental handpiece is influenced, the special repairing tool for the structure is lacking in the market at present, the disassembling time is too long, and the repairing quality is not guaranteed.
Disclosure of Invention
The invention aims to provide a dental low-speed handpiece disassembling device which is specially used for disassembling an NSK dental low-speed handpiece with a structure recorded in the background technology, reduces the disassembling and maintaining time on the premise of not damaging parts, and ensures the maintaining quality.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a dental low-speed mobile phone dissembling device which comprises a first sleeve, wherein a first through hole and a second through hole which are communicated with each other are formed in the first sleeve, the diameter of the first through hole is smaller than that of the second through hole, the second sleeve is installed in the first through hole in a matched mode, a limiting convex edge matched with the diameter of the second through hole in size is arranged at the bottom of the second sleeve, a lower pressing convex edge is arranged on the inner periphery of the top of the second sleeve, a third sleeve is installed at the bottom of the first sleeve in a matched mode through threads, an upper pressing convex edge is arranged on the inner periphery of the bottom of the third sleeve, a circular ring plate is further arranged at the bottom of the third sleeve, a vertically-arranged inserting plate is installed on the outer periphery of the circular ring plate, a placing groove matched with an inserting plate is formed in the outer periphery of the third sleeve, the circular ring plate is detachably installed on the third sleeve through a pressing plate, and an avoiding groove matched with the inserting plate is formed in the pressing plate. The periphery of the first sleeve is provided with a convex gear tooth. And the third sleeve is provided with two mutually-communicated jacks. The pressing plate is provided with a screw, the circular ring plate is provided with a third through hole matched with the screw, and the third sleeve is provided with a threaded hole matched with the screw. The pressing plate comprises a pressing box and a pressing cover, an installation cavity is formed in the pressing box, the pressing cover is installed on the pressing box in a matched mode, an annular column is arranged in the installation cavity, an annular sleeve is sleeved on the periphery of the annular column, a locking plate is installed on the annular sleeve and located in the installation cavity, a wedge surface is arranged on one side of the locking plate, a fourth through hole is formed in the pressing box, a locking rod matched with the fourth through hole is installed on a third sleeve, a locking groove matched with the wedge surface is formed in one side of the locking rod, a hemispherical bulge is further arranged at the bottom of the locking rod, a torsion spring is further installed between the annular sleeve and the pressing box, the torsion spring always tends to enable the locking plate to rotate to the position of the fourth through hole, when the locking rod extends into the fourth through hole, the hemispherical bulge can push the locking plate to overcome the elasticity of the torsion spring to rotate to leave the fourth through hole, when the locking rod continues to move downwards, the wedge surface can enter the locking groove under the elasticity of the torsion spring to position the locking rod, the annular sleeve is also provided with a unlocking device which comprises a guide rod fixed on the annular sleeve, the guide rod is provided with a guide sleeve, a spring is arranged between the guide sleeve and the annular sleeve, the spring always tends to enable the guide sleeve to be far away from the annular sleeve, the guide sleeve is also provided with an unlocking block, a first arc-shaped groove is arranged on the gland corresponding to the position of the unlocking block, the unlocking block penetrates out of the gland through the first arc-shaped groove, the first arc-shaped groove is communicated with a first positioning groove and a second positioning groove, when the unlocking block is positioned in the first positioning groove, the locking plate is positioned at the position of a fourth through hole, when the unlocking block is positioned in the second positioning groove, the locking plate is separated from the fourth through hole, the outer side surface of the gland is also provided with a rotatable limiting plate, the limiting plate is provided with a second arc-shaped groove matched with the first arc-shaped groove, and the gland is also provided with a first stop block and a second stop block for limiting the rotation of the limiting plate, when the limiting plate contacts with the first stop block, the first positioning groove and the second positioning groove are communicated with the first arc-shaped groove, when the limiting plate contacts with the second stop block, the first positioning groove is not communicated with the first arc-shaped groove, and the second positioning groove is communicated with the first arc-shaped groove.
The invention has the positive effects that: the invention aims to provide a dental low-speed handpiece disassembling device which is specially used for disassembling an NSK dental low-speed handpiece with a structure recorded in the background technology, can realize the disassembly of multiple parts on the NSK dental low-speed handpiece by one disassembling device, is convenient to use and store, can greatly reduce the disassembly and maintenance time on the premise of not damaging the parts, and effectively ensures the maintenance quality.
Drawings
FIG. 1 is a schematic structural diagram of the spindle and the upper parts in the NSK dental low-speed handpiece;
FIG. 2 is a schematic view of the structure of a dental handpiece air motor mounting housing and its internal components;
FIG. 3 is a schematic of the three-dimensional structure of the present invention;
FIG. 4 is a schematic illustration of an explosive assembly of the present invention;
FIG. 5 is a schematic structural view of the present invention assembled to a spindle for disassembling a clamp spring;
FIG. 6 is a top view of FIG. 5;
FIG. 7 is a sectional view taken along line A-A of FIG. 6;
FIG. 8 is an enlarged partial view of I of FIG. 7;
FIG. 9 is a schematic view of the construction of the dental handpiece air motor disassembled using the third sleeve;
FIG. 10 is a schematic structural view of another embodiment of the third sleeve;
FIG. 11 is a view from the direction B of FIG. 10;
FIG. 12 is a schematic view of the structure of the press box;
FIG. 13 is a schematic view of the gland;
FIG. 14 is a schematic three-dimensional view of the annular sleeve and locking plate;
fig. 15 is a schematic structural view of the stopper plate.
In the figure, 1, a first through hole 3 of a first sleeve 2, a second through hole 4, a second sleeve 5, a limiting convex edge 6, a downward convex edge 7, an upward convex edge 7 of a third sleeve 8, a 9 circular ring plate 10, an insertion plate 11, a placement groove 12, a pressing plate 13, a relief groove 14, a convex gear tooth 15, an insertion hole 16, a screw 17, a third through hole 18, a rotating shaft 20, a mandrel 21, a disc spring 23, a bowl-shaped pressing sleeve 24, a mounting groove 25, a snap spring 26, a limiting groove 27, a pneumatic motor mounting shell 28, a dental handpiece, a pneumatic motor 29, a pressing ring 30, a clamping groove 31, a pressing cover 32, a mounting cavity 34, a circular ring 35, a 36, a locking plate 37, a wedge surface 38, a locking rod 40, a hemisphere protrusion 42, a torsion spring 43, a guide rod 44, a spring 46, an unlocking block 47, a first arc groove 48, a 49, a second positioning groove 50, a limiting plate 51, a second arc groove 52, a second stop 53 and a second stop.
Detailed Description
The inner structure of the NSK dental low-speed handpiece in the background art is shown in fig. 1 and fig. 2, a clamping sleeve 20 is sleeved at one end of a rotating shaft 19, a mandrel 21 for clamping a needle is arranged in the clamping sleeve 20, a plurality of disc springs 22 are installed on the rotating shaft 19 at the other end of the clamping sleeve 20, a bowl-shaped pressing sleeve 23 is sleeved on the rotating shaft 19 at one end of each disc spring 22, the lower bottom surface of the bowl-shaped pressing sleeve 23 is in contact with the disc springs 22, an installation groove 24 is formed in the top surface of the bowl-shaped pressing sleeve 23, a limit groove 26 is formed in the rotating shaft 19 and corresponds to the position of the bowl-shaped pressing sleeve 23, a clamp spring 25 is installed in the limit groove 26 in a matched mode, the clamp spring 25 is located in the installation groove 24 and has a limiting effect on the bowl-shaped pressing sleeve 23, so that the disc springs 22 always have a tendency of pushing the clamping sleeve 20 to move towards the mandrel 21, and further tightly clamp the needle inside the mandrel 21. Because the dish spring 22 has pressure to bowl form pressure cover 23 simultaneously, make jump ring 25 be located mounting groove 24 and with the bottom in close contact with mounting groove 24, it is difficult to make bowl form pressure cover 23 move down and expose jump ring 25 and dismantle.
As shown in fig. 2, the dental handpiece pneumatic motor 28 is first installed in the pneumatic motor installation housing 27 and fixed by the pressing ring 29, wherein the pressing ring 29 is provided with a clamping groove 30, the outer periphery of the pressing ring 29 is provided with external threads, the inner periphery of the pneumatic motor installation housing 27 is provided with internal threads matched with the external threads, and the pressing ring 29 is screwed into the pneumatic motor installation housing 27 in a matching manner, so that the dental handpiece pneumatic motor 28 can be limited and fixed, but the disassembly operation is not easy to perform.
The dental low-speed handpiece dissembling device can disassemble the dental low-speed handpiece effectively and quickly aiming at the structure, as shown in fig. 3 and 4, the dental low-speed handpiece dissembling device comprises a first sleeve 1, a first through hole 2 and a second through hole 3 which are communicated with each other are formed in the first sleeve 1, the diameter of the first through hole 2 is smaller than that of the second through hole 3, a second sleeve 4 is installed in the first through hole 2 in a matched mode, a limiting convex edge 5 matched with the diameter of the second through hole 3 in size is arranged at the bottom of the second sleeve 4, and after the second sleeve 4 is installed in the first sleeve 1, due to the arrangement of the limiting convex edge 5, the second sleeve 4 can move downwards together with the first sleeve 1. The inner periphery of the top of the second sleeve 4 is provided with a downward pressing convex edge 6, the downward pressing convex edge 6 can be matched with the top surface of the bowl-shaped pressing sleeve 23, and drives the bowl-shaped pressing sleeve 23 to compress the disc spring 22 to expose the clamp spring 25 on the rotating shaft 19.
When the dental low-speed handpiece detacher of the invention is used for detaching the clamp spring 25, as shown in fig. 5, 7 and 8, the insert plate 10 is positioned in the placement groove 11, the third sleeve 7 is firstly sleeved and moved upwards from the position of the mandrel 21 to the position of the upper convex edge 8 to be contacted with the end surface of the clamping sleeve 20, then the second sleeve 4 is arranged in the first sleeve 1, then the two sleeves are integrally sleeved and moved downwards from the position of the rotating shaft 19 to the position of the lower convex edge 6 to be contacted with the top surface of the bowl-shaped pressing sleeve 23, then the first sleeve 1 and the third sleeve 7 are mutually close through threaded connection, as the upper convex edge 8 of the third sleeve 7 is contacted with the end surface of the clamping sleeve 20, the third sleeve 7 can not relatively move with the clamping sleeve 20 in the process of gradually approaching the first sleeve 1 and the third sleeve 7, the first sleeve 1 is rotated to move upwards and downwards in the direction shown in fig. 7, the second sleeve 4 and the lower convex edge 6 are driven to move downwards at the same time, because the third sleeve 7 is fixed relative to the clamping sleeve 20, the in-process that the first sleeve 1 and the third sleeve 7 are gradually close can finally drive the bowl-shaped pressing sleeve 23 to compress the disc spring 22, the clamp spring 25 is exposed so as to be convenient for disassembly, the disc spring 22 is positioned in the first sleeve 1 and the second sleeve 4 in the disassembly process, the stored elastic potential energy can be effectively buffered, the disassembly of the subsequent disc spring 22 is facilitated, wherein the second sleeve 4 and the downward pressing convex edge 6 are used as the direct stress point position of the device and can be replaced in time as a quick-wear part, so that the service life of the device is prolonged, and the replacement and maintenance cost of the device is reduced.
As shown in fig. 9, the third sleeve 7 is used alone to disassemble the pneumatic motor 28 of the dental handpiece, wherein the circular plate 9 is installed in an inverted manner, the insertion plate 10 is located in the avoiding groove 13, the lower end of the insertion plate 10 extends into the pneumatic motor installation shell 27 and is matched with the clamping groove 30 on the pressing ring 29, and the pressing ring 29 can be detached from the pneumatic motor installation shell 27 by rotating the third sleeve 7, so that the subsequent disassembly operation of the pneumatic motor 28 of the dental handpiece is facilitated.
Further, in order to increase the friction force between the first sleeve 1 and the second sleeve 1 when the clamp spring 25 is detached, the outer periphery of the first sleeve 1 is provided with the protruding gear teeth 14, and the protruding gear teeth 14 can effectively avoid the slipping phenomenon in the rotating process of the first sleeve 1. In order to increase the rotating force arm of the third sleeve 7 when the pneumatic motor 28 of the dental handpiece is detached, two insertion holes 15 which are communicated with each other are formed in the third sleeve 7, and a long rod can be installed in the insertion holes 15 to increase the force arm in the rotating process, so that the aim of saving labor is fulfilled.
Furthermore, the detachable connection mode between the pressing plate 12 and the third sleeve 7 is as shown in fig. 4, a screw 16 is installed on the pressing plate 12, a third through hole 17 matched with the screw 16 is formed in the circular ring plate 9, a threaded hole 18 matched with the screw 16 is formed in the third sleeve 7, and the screw 16 sequentially penetrates through the pressing plate 12 and the circular ring plate 9 and is in threaded fit with the third sleeve 7 to realize detachable installation.
Further, in order to facilitate the detachment and fixation between the pressing plate 12 and the third sleeve 7, as shown in fig. 12 and 13, the pressing plate 12 includes a pressing box 31 and a pressing cover 32, an installation cavity 33 is formed in the pressing box 31, the pressing cover 32 is installed on the pressing box 31 in a matching manner, the pressing cover 32 is fixedly connected with the pressing box 31 in a normal use state, an annular column 34 is arranged in the installation cavity 33, an annular sleeve 35 is sleeved on the periphery of the annular column 34, a locking plate 36 is installed on the annular sleeve 35, the locking plate 36 is located in the installation cavity 33, as shown in fig. 14, one side surface of the locking plate 36 is a wedge surface 37, a fourth through hole 38 is formed in the pressing box 31, as shown in fig. 10 and 11, a locking rod 39 matched with the fourth through hole 38 is installed on the third sleeve 7, a locking groove 40 matched with the wedge surface 37 is formed on one side of the locking rod 39, a hemispherical protrusion 41 is further formed at the bottom of the locking rod 39, a torsion spring 42 is further installed between the annular sleeve 35 and the pressing box 31, the torsion spring 42 always tends to enable the locking plate 36 to rotate to the position of the fourth through hole 38, when the locking rod 39 extends into the fourth through hole 38, the hemispherical protrusion 41 can push the locking plate 36 to rotate to leave the fourth through hole 38 by overcoming the elasticity of the torsion spring 42, and when the locking rod 39 moves downwards continuously, the wedge-shaped surface 37 can enter the locking groove 40 under the elasticity of the torsion spring 42 to position the locking rod 39. Wherein the hemispherical protrusion 41 is provided to make it easier for the locking lever 39 to push the wedge surface 37 to rotate the locking plate 36 against the elastic force of the torsion spring 42.
In order to facilitate the detachment and separation of the pressure plate 12 from the third sleeve 7, the annular sleeve 35 is further provided with a unlocking device, the unlocking device comprises a guide rod 43 fixed on the annular sleeve 35, a guide sleeve 44 is mounted on the guide rod 43, a spring 45 is arranged between the guide sleeve 44 and the annular sleeve 35, and the spring 45 always tends to enable the guide sleeve 44 to be away from the annular sleeve 35. The guide sleeve 44 is further provided with an unlocking block 46, a first arc-shaped groove 47 is formed in the gland 32 corresponding to the position of the unlocking block 46, and the unlocking block 46 penetrates out of the gland 32 through the first arc-shaped groove 47. The first arc-shaped groove 47 is also communicated with a first positioning groove 48 and a second positioning groove 49, when the unlocking block 46 is positioned in the first positioning groove 48, the locking plate 36 is positioned at the position of the fourth through hole 38, the locking plate 36 and the locking rod 39 are locked with each other, when the unlocking block 46 is positioned in the second positioning groove 49, the locking plate is separated from the fourth through hole 38, and the locking plate 36 and the locking rod 39 can be unlocked.
Still install on the lateral surface of gland 32 can pivoted limiting plate 50, as shown in fig. 15, set up on the limiting plate 50 with first arc wall 47 matched with second arc wall 51, still be equipped with first dog 52 and the second dog 53 of injecing limiting plate 50 pivoted on gland 32, when limiting plate 50 contacts with first dog 52, first constant head tank 48 and second constant head tank 49 all link up with first arc wall 47, when limiting plate 50 contacts with second dog 53, first constant head tank 48 and first arc wall 47 do not link up, second constant head tank 49 and first arc wall 47 link up.
When the pressing plate 12 needs to be installed on the third sleeve 7, the position-limiting plate 50 is located at the position shown in fig. 13, at this time, the position-limiting plate 50 contacts the second stopper 53, the first positioning groove 48 is not communicated with the first arc-shaped groove 47, the unlocking block 46 is located at one end of the first arc-shaped groove 47 close to the first positioning groove 48 under the action of the elastic force of the torsion spring 42, the wedge-shaped surface 37 on the locking plate 36 is located at the position of the fourth hole 38, the locking rod 39 extends into the fourth hole 38, the wedge-shaped surface 37 is pressed during the downward movement of the hemispherical protrusion 41, the locking plate 36 and the annular sleeve 35 rotate clockwise in the direction shown in fig. 12 against the elastic force of the torsion spring 42, when the locking groove 40 onto which the locking rod 39 moves downward is aligned with the wedge-shaped surface 37, the wedge-shaped surface 37 enters the locking groove 40 under the action of the elastic force of the torsion spring 42, the mutual locking between the locking plate 36 and the locking rod 39 is completed, and then the position-limiting plate 50 is rotated to communicate the first positioning groove 48 with the first arc-shaped groove 47, the unlocking block 46 enters the first positioning groove 48 under the elastic force of the spring 45, so that the locking plate 36 and the annular sleeve 35 are positioned, and the locking plate 36 is prevented from being separated from the locking rod 39 and unlocked due to accidental rotation.
When the pressing plate 12 needs to be detached from the third sleeve 7, the limiting plate 50 is shifted to be in contact with the first stopper 52, the first positioning groove 48 and the second positioning groove 49 are both communicated with the first arc-shaped groove 47, the unlocking block 46 is manually pulled from the first positioning groove 48 to the second positioning groove 49, the wedge-shaped surface 37 on the locking plate 36 is separated from the locking groove 40, the locking rod 39 and the third sleeve 7 can be pulled out from the fourth through hole 38, and the pressing plate 12 is separated from the third sleeve 7.
The technical solution of the present invention is not limited to the scope of the embodiments of the present invention. The technical contents not described in detail in the present invention are all known techniques.
Claims (3)
1. The utility model provides a dentistry low-speed cell-phone dissembling device which characterized in that: comprises a first sleeve (1), a first through hole (2) and a second through hole (3) which are communicated with each other are arranged in the first sleeve (1), the diameter of the first through hole (2) is smaller than that of the second through hole (3), a second sleeve (4) is arranged in the first through hole (2) in a matched manner, a limiting convex edge (5) matched with the diameter of the second through hole (3) is arranged at the bottom of the second sleeve (4), a lower convex edge (6) is arranged at the inner periphery of the top of the second sleeve (4), a third sleeve (7) is arranged at the bottom of the first sleeve (1) in a matched manner through screw threads, an upper convex edge (8) is arranged at the inner periphery of the bottom of the third sleeve (7), a circular ring plate (9) is further arranged at the bottom of the third sleeve (7), a vertically arranged inserting plate (10) is arranged at the outer periphery of the circular ring plate (9), a placing groove (11) matched with the inserting plate (10) is arranged at the outer periphery of the third sleeve (7), the circular plate (9) is detachably mounted on the third sleeve (7) through a pressing plate (12), and an avoiding groove (13) matched with the inserting plate (10) is formed in the pressing plate (12); the periphery of the first sleeve (1) is provided with convex gear teeth (14); the third sleeve (7) is provided with two insertion holes (15) which are communicated with each other; the dental low-speed handpiece detacher is specially used for NSK dental low-speed handpieces.
2. The dental low-speed handpiece detacher as recited in claim 1, wherein: the pressing plate (12) is provided with a screw (16), the circular ring plate (9) is provided with a third through hole (17) matched with the screw (16), and the third sleeve (7) is provided with a threaded hole (18) matched with the screw (16).
3. The dental low-speed handpiece detacher as recited in claim 1, wherein: the clamp plate (12) is including pressing box (31) and gland (32), has seted up installation cavity (33) in pressing box (31), and gland (32) cooperation is installed on pressing box (31), be equipped with annular post (34) in installation cavity (33), the periphery cover of annular post (34) is equipped with annular cover (35), installs lockplate (36) on annular cover (35), lockplate (36) are located installation cavity (33), a side of lockplate (36) is wedge face (37), fourth through-hole (38) have been seted up on pressing box (31), install on third sleeve (7) with fourth through-hole (38) matched with locking lever (39), locking groove (40) with wedge face (37) matched with have been seted up to locking lever (39) one side, still be equipped with hemisphere protruding (41) in the bottom of locking lever (39), torsional spring (42) still install between annular cover (35) and the pressure box (31), the torsion spring (42) always has the trend that the locking plate (36) rotates to the position of the fourth through hole (38), when the locking rod (39) extends into the fourth through hole (38), the hemispherical bulge (41) can push the locking plate (36) to rotate to leave the fourth through hole (38) by overcoming the elasticity of the torsion spring (42), when the locking rod (39) moves downwards continuously, the wedge-shaped surface (37) can enter the locking groove (40) to position the locking rod (39) under the elasticity of the torsion spring (42), the annular sleeve (35) is also provided with a locking releasing device, the locking releasing device comprises a guide rod (43) fixed on the annular sleeve (35), a guide sleeve (44) is installed on the guide rod (43), a spring (45) is arranged between the guide sleeve (44) and the annular sleeve (35), the spring (45) always has the trend that the guide sleeve (44) is far away from the annular sleeve (35), and the guide sleeve (44) is also provided with a locking releasing block (46), corresponding to the position of the unlocking block (46), a first arc-shaped groove (47) is formed in the gland (32), the unlocking block (46) penetrates out of the gland (32) through the first arc-shaped groove (47), the first arc-shaped groove (47) is communicated with a first positioning groove (48) and a second positioning groove (49), when the unlocking block (46) is positioned in the first positioning groove (48), the locking plate (36) is positioned at the position of the fourth through hole (38), when the unlocking block (46) is positioned in the second positioning groove (49), the locking plate is separated from the fourth through hole (38), a rotatable limiting plate (50) is further installed on the outer side face of the gland (32), a second arc-shaped groove (51) matched with the first arc-shaped groove (47) is formed in the limiting plate (50), a first stop block (52) and a second stop block (53) for limiting the rotation of the limiting plate (50) are further arranged on the gland (32), when limiting plate (50) and first dog (52) contact, first constant head tank (48) and second constant head tank (49) all communicate with first arc wall (47), and when limiting plate (50) and second dog (53) contact, first constant head tank (48) and first arc wall (47) do not UNICOM, and second constant head tank (49) and first arc wall (47) UNICOM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011411358.5A CN112338858B (en) | 2020-12-03 | 2020-12-03 | Dental low-speed mobile phone disassembling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011411358.5A CN112338858B (en) | 2020-12-03 | 2020-12-03 | Dental low-speed mobile phone disassembling device |
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| Publication Number | Publication Date |
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| CN112338858A CN112338858A (en) | 2021-02-09 |
| CN112338858B true CN112338858B (en) | 2022-01-28 |
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| CN202011411358.5A Active CN112338858B (en) | 2020-12-03 | 2020-12-03 | Dental low-speed mobile phone disassembling device |
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| CN113843748B (en) * | 2021-10-25 | 2022-12-06 | 沈阳北方飞机维修有限公司 | Lock nut assembly tool assembly for maintaining airplane actuator cylinder |
| CN115972147B (en) * | 2023-03-20 | 2023-05-26 | 莱州市金达威机械有限公司 | Dismounting device for peeling roller of corn harvester |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6752629B2 (en) * | 2001-02-26 | 2004-06-22 | Micron Co., Ltd. | Air-driven dental vibratory instrument with a replaceable vibrator module |
| CN202714934U (en) * | 2012-07-16 | 2013-02-06 | 佛山市宇森医疗器械有限公司 | Push-type high speed turbine dental mobile phone movement |
| CN204431181U (en) * | 2014-12-26 | 2015-07-01 | 郑州大学第四附属医院 | Dental handpiece dismantling device |
| CN104706431A (en) * | 2015-03-30 | 2015-06-17 | 桂林市啄木鸟医疗器械有限公司 | Handpiece capable of automatically locking by pressing central spindle and central spindle for handpiece |
| CN105395260B (en) * | 2015-12-10 | 2018-07-24 | 佛山市德克医疗器械有限公司 | Package assembly and mandrel component for push type high speed dental turbo mobile phone |
| WO2017176449A1 (en) * | 2016-04-05 | 2017-10-12 | Zest Ip Holdings, Llc | Driver tool and method of use |
| CN108488522A (en) * | 2018-03-20 | 2018-09-04 | 广东精美医疗科技有限公司 | A kind of quick coupling device with check valve of dental handpiece |
| KR102075421B1 (en) * | 2018-09-19 | 2020-02-10 | 동의대학교 산학협력단 | Tooth coloring device |
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