CN217660208U - Distal guide plate type clearance retainer - Google Patents

Abstract

The utility model relates to a far and middle guide plate type clearance keeper. The existing far-middle guide plate is fixed in a one-off mode by welding or clamping, and is not easy to detach. The utility model provides a pair of well guide plate formula intermittent type keeps ware far away, including the fixed cover of tooth and well baffle far away, fixed cover one side of tooth transversely is provided with the bracing piece that is parallel to each other, and well baffle one side far away is provided with the installation pole that is parallel to each other, bracing piece and installation pole correspond each other and stretch out and draw back and cup joint, bracing piece and installation pole on be provided with locking structure, locking structure make bracing piece and installation pole detachably connect. The utility model discloses a closure structure is fixed it and the fixed cover of first permanent molar tooth and the baffle of keeping away from, and closure structure lock or locking will keep away from that the fixed cover of baffle and tooth is fixed or separate at any time, and the later stage secondary treatment of being convenient for is maintained.

Description

Distal guide plate type clearance retainer

Technical Field

The utility model belongs to the technical field of children's dentistry medical parts, a disappearance tooth treatment device that is used for children's second breast to grind tooth is related to, specifically indicates a board-like interstitial retainer of well guide.

Background

The primary teeth are physiologically dropped from the eruption of the infant about 6 months to the children about 6 years old, and are replaced by corresponding permanent teeth from about 12 years old. The replacement of normal deciduous permanent teeth does not need to be performed with external intervention, but the premature deciduous teeth fall off due to serious endodontic disease, periapical disease, tooth trauma, abnormal root absorption and the like, and the eruption of inherited permanent teeth is adversely affected. In order to prevent the adjacent teeth of the primary teeth of children from inclining to the lacuna part and extending to the jaw teeth after the primary teeth of children are lost, a gap retainer is designed to maintain the horizontal and vertical gaps of the primary teeth of children, and ensure the succession of permanent teeth to sprout smoothly.

At present, for the problem of second deciduous molar loss in children of the age of tooth replacement, a tooth socket is sleeved on a first constant molar, a far middle guide plate is additionally arranged at the second deciduous molar loss part to be fixed with the tooth socket, the tooth socket and the far middle guide plate can be adjusted, and two sections are welded together at a determined distance. The far-middle guide plate can prevent the displacement of teeth, and simultaneously, the problem that teeth of children grow unhealthy easily due to the fact that the teeth of the children lick missing parts habitually later is avoided.

Publication No. CN 215349675U also discloses a space retainer, which is composed of a first deciduous molar wearing piece and a far-middle guide plate, wherein the first deciduous molar wearing piece and the far-middle guide plate are telescopically connected by a telescopic support arm and a hollow tube, when in use, the distance between the far-middle guide plate and the wearing piece is adjusted, and then a sleeve is clamped by orthodontic pliers, so that the support rod is fixed after the deformation of the sleeve.

The fixed mode of the adoption welding of above-mentioned far-in baffle or centre gripping is disposable fixed, if second breast molar disappearance portion goes wrong or first permanent molar is not according to predicted guiding direction when sprouting, can only demolish and reinstall later stage secondary treatment maintenance of being not convenient for.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, an object of the present invention is to provide a far middle guide plate type gap retainer, wherein a far middle guide plate is fixed to a first permanent molar tooth fixing sleeve by using a locking structure, and the locking structure can lock or unlock the far middle guide plate and the tooth socket at any time to fix or separate the far middle guide plate and the tooth socket, thereby facilitating the maintenance of the secondary treatment in the later period.

In order to achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a well guide plate formula space retainer far away, includes the fixed cover of tooth and well baffle far away, the fixed cover one side of tooth transversely is provided with the bracing piece that is parallel to each other, well baffle one side far away is provided with the installation pole that is parallel to each other, bracing piece and installation pole correspond each other and stretch out and draw back and cup joint, be provided with locking structure on bracing piece and the installation pole, locking structure make bracing piece and installation pole detachably connect.

Furthermore, the locking structure comprises a locking pipe sleeved on the support rod, wherein an inner cavity wall at one end of the locking pipe is provided with internal threads, and an inner cavity at the other end of the locking pipe is a conical surface; the front end of the mounting rod is provided with a tightening sleeve which can be sleeved on the supporting rod, the end part of the tightening sleeve is axially provided with a slotted hole which penetrates through the sleeve wall of the tightening sleeve, the peripheral surface of the tightening sleeve is matched with the conical surface of the locking pipe, and the mounting rod at the rear end of the tightening sleeve is also provided with an external thread matched with the internal thread.

Furthermore, the conical surface has a small opening at the outer end and a large opening at the inner end of the locking tube.

Furthermore, the locking structure comprises a locking cutting sleeve connected to the support rod, the cross section of the locking cutting sleeve is of a semi-annular structure, and the inner diameter of the locking cutting sleeve is slightly smaller than the outer diameter of the mounting rod; the mounting rod can be clamped in the locking sleeve.

Furthermore, the length H of the two ends of the semi-ring structure is slightly larger than the inner diameter of the semi-ring.

Further, the cross section of the locking clamping sleeve is of a C-shaped structure.

Furthermore, the locking structure comprises a locking clamping plate hinged on the supporting rod, a clamping groove capable of clamping and sleeving the mounting rod is formed in the lower plate surface of the locking clamping plate, the supporting rod is a hollow pipe capable of sleeving the mounting rod, and a slotted hole penetrating through the pipe wall is axially formed in the end part of the supporting rod.

Furthermore, the cross section of the clamping groove is of a semicircular structure,

furthermore, the two ends of the semicircle are provided with bulges.

The utility model discloses owing to take above technical scheme, it has following advantage and effect:

the connection between the tooth socket of the far middle guide plate type interval retainer and the far middle guide plate is realized by adopting a locking structure, the far middle guide plate is fixed with a first constant molar tooth fixing sleeve by adopting the locking structure, and the locking structure can be opened or buckled at any time so as to realize the detachable connection fixation or separation of the far middle guide plate and the tooth socket, effectively avoid the pollution caused by welding fixation or the non-detachability caused by the adoption of a clamp sleeve of orthodontic pliers, and facilitate the later-stage secondary treatment and maintenance; and because the locking structure does not damage any one accessory of the tooth socket or the far guide plate, the far guide plate type gap retainer of the same patient can be reused, and the cost of the patient for seeing a doctor is saved.

Drawings

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

Fig. 2 is a schematic sectional structure diagram of embodiment 1 of the present invention.

Fig. 3 is a schematic cross-sectional view of a lock sleeve according to embodiment 1 of the present invention.

Fig. 4 is a schematic perspective view of embodiment 2 of the present invention.

Fig. 5 is the cross-sectional structure diagram of the locking ferrule and the support rod of embodiment 2 of the present invention.

Fig. 6 is a schematic perspective view of embodiment 3 of the present invention.

Fig. 7 is a schematic sectional structure diagram of embodiment 3 of the present invention.

Fig. 8 isbase:Sub>A sectional view taken along linebase:Sub>A-base:Sub>A of fig. 7.

The tooth locking device comprises a tooth fixing sleeve 1, a distal guide plate 2, a locking tube 3, a supporting rod 011, a mounting rod 021, an external thread 022, a tightening sleeve 023, an internal thread 031, a conical surface 032, a locking clamping sleeve 4, an extension end 041, a locking clamping plate 05, a clamping groove 051 and a protrusion 052.

Detailed Description

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the objects, features and advantages of the invention can be more clearly understood. It should be understood that the embodiments shown in the drawings are not intended as limitations on the scope of the invention, but are merely illustrative of the true spirit of the technical solution of the invention.

The utility model provides a pair of well baffle formula interstitial retainer far away, well baffle far away adopt the closure structure with its fixed cover of first permanent molar tooth fixed, the closure structure lock or locking will be far away well baffle and the fixed cover detachably of tooth and connect as an organic wholely at any time, and the fixed cover of baffle far away and tooth can separate at any time, the later stage secondary treatment of being convenient for is maintained.

Example 1

As shown in fig. 1, 2 and 3. The embodiment provides a far guide plate type gap retainer, which comprises a tooth fixing sleeve 1 and a far guide plate 2, wherein the tooth fixing sleeve 1 and the far guide plate 2 are oppositely arranged. The fixed cover 1 one side of tooth transversely is provided with a pair of bracing piece 011 that is parallel to each other, and the cover is equipped with closure pipe 3 on the bracing piece respectively, 3 both ends of closure pipe link up, are provided with internal thread 031 on the closure pipe one end inner chamber wall, and other end inner chamber wall is conical surface 032, and conical surface 032 is greater than the internal diameter size formation internal conical surface of opposite side towards the internal diameter size of internal thread one side.

A pair of parallel mounting rods 021 are arranged on one side of the far middle guide plate 2 opposite to the tooth fixing sleeve 1, and the horizontal distance of the axis between the two mounting rods 021 is the same as the horizontal distance of the axis between the two supporting rods 011, so that the pair of parallel mounting rods 021 can be oppositely sleeved on the pair of supporting rods 011 to extend the supporting rods to move in a telescopic manner so as to adjust the distance between the far middle guide plate 2 and the tooth fixing sleeve 1.

The installation rod 021 is provided with a through hole in an axial through mode, the front end of the installation rod 021 forms a contraction sleeve 023, the outer peripheral surface of the contraction sleeve 023 is an outer peripheral conical surface matched with the inner conical surface of the inner cavity of the locking tube 3, namely, the diameter of the outer peripheral surface close to the front end of the contraction sleeve is small, and the diameter of the outer peripheral surface close to the rear end of the contraction sleeve is small. It is provided with the cross slotted hole to tighten the cover 023 and to extend to the little tip axial of the outer peripheral face diameter of its front end, and the slotted hole link up to the whole periphery conical surface that tightens the cover 023, still be provided with on the installation pole periphery of tightening the cover 023 rear end with the internal thread 031 assorted external screw thread 022 that the closure was managed, in order to facilitate to tighten the shrink deformation that the cover 023, it can adopt the elastic metal material preparation of utensil to tighten the cover 023.

The locking pipe, the tightening sleeve and the external thread on the mounting rod form a locking structure for fixing or separating the mounting rod and the supporting rod, so that the mounting rod and the supporting rod can be detachably connected. When the locking pipe is used, the locking pipe is firstly sleeved on the mounting rod, then the support rod is sleeved on the mounting rod, the distance length between the tooth fixing sleeve 1 and the far and middle guide plate 2 is determined, then the telescopic length of the mounting rod in the support rod is adjusted, the thread length of the locking pipe on the support rod is rotated after the position is determined, the inner conical surface in the locking pipe and the outer conical surface on the contraction sleeve at the front end of the support rod are mutually pressed, and the mounting rod and the support rod are locked by the locking pipe. When the locking is released, the mounting rod and the supporting rod can be separated only by reversely rotating the locking pipe again.

Example 2

As shown in fig. 4 and 5. The embodiment provides a far guide plate type gap retainer, which comprises a tooth fixing sleeve 1 and a far guide plate 2, wherein the tooth fixing sleeve 1 and the far guide plate are oppositely arranged. One side of the tooth fixing sleeve 1 is transversely provided with a pair of mutually parallel support rods 011, the horizontal longitudinal side of each support rod is respectively fixed with a locking cutting sleeve 4, and each locking cutting sleeve 4 and the corresponding support rod 011 are mutually arranged in parallel and connected into a whole. The cross section of the locking cutting sleeve 4 is of a semi-annular structure, and the size of the semi-annular inner cavity is slightly smaller than the outer diameter of the mounting rod 021 so that the mounting rod is conveniently clamped in the annular inner cavity.

A pair of parallel mounting rods 021 is arranged on one side of the far and middle guide plate 2 opposite to the tooth fixing sleeve 1, the mounting rods 021 are of rod-shaped structures, and the horizontal distance between the two mounting rods 021 is the same as that of the two locking cutting sleeves 4, so that the two mounting rods 021 are simultaneously clamped and sleeved in the locking cutting sleeves 4. The distance H between the extending ends 041 of the semi-circular cross section of the locking ferrule 4 to both sides is slightly smaller than the diameter of the semi-circular ring, which facilitates the installation rod 021 to be clamped in the locking ferrule 4.

The locking cutting sleeve 4 is made of elastic metal materials, and the inner diameter of the locking cutting sleeve is slightly smaller than the outer diameter of the mounting rod 021, so that after the distance between the mounting rod 021 and the supporting rod 011 is adjusted in use, the mounting rod is clamped and sleeved in the locking cutting sleeve 4, the mounting rod is fixed by the expansion elasticity of the locking cutting sleeve 4, and when the locking cutting sleeve is detached, the mounting rod is taken out along the horizontal longitudinal direction, and the locking cutting sleeve recovers deformation.

Preferably, the locking ferrule 4 of the present embodiment may also select: the cross-section of the locking ferrule 4 may be a C-shaped configuration with the largest dimension in the inner diameter direction being slightly smaller than the outer diameter dimension of the mounting stem so that the mounting stem snaps into the locking ferrule.

Therefore, the locking sleeve of the present embodiment is used as a locking structure for fixing or separating the mounting rod and the support rod, so as to detachably connect the mounting rod and the support rod.

Example 3

As shown in fig. 6, 7 and 8. The embodiment provides a far guide plate type gap retainer, which comprises a tooth fixing sleeve 1 and a far guide plate 2, wherein the tooth fixing sleeve 1 and the far guide plate are oppositely arranged.

The tooth fixing sleeve is characterized in that one side of the tooth fixing sleeve 1 is transversely provided with a pair of mutually parallel supporting rods 011, the supporting rods 011 are of hollow tubular structures, the supporting rods 011 are axially provided with cross-shaped slotted holes along the end faces, and the slotted holes penetrate through the pipe walls of the supporting rods 011.

The horizontal longitudinal outer side of the supporting rod is provided with two lugs with through holes, the two lugs are hinged with a locking clamping plate 5 through a rotating shaft, one side of the locking clamping plate 5 is hinged on the two lugs, and the locking clamping plate 5 can rotate along the rotating shaft to form a door bolt connecting structure with the supporting rod. Two clamping grooves 051 arranged at intervals are formed in the lower plate surface of the locking clamping plate 5, the clamping grooves 051 penetrate through the front end portion and the rear end portion of the locking clamping plate 5, the cross section of each clamping groove is of a semicircular structure, and the inner diameter of each clamping groove is slightly smaller than the outer diameter of the mounting rod. The horizontal center spacing distance of the two clamping grooves is the same as the horizontal center spacing distance of the two supporting rods 011, so that the clamping grooves of the locking clamping plates 5 are clamped outside the corresponding supporting rods.

A pair of parallel mounting rods 021 is arranged on one side of the far middle guide plate 2 opposite to the tooth fixing sleeve 1, the mounting rods 021 are of rod-shaped structures, and the outer diameter of the mounting rods is slightly smaller than the inner diameter of the supporting rods. The horizontal distance of the axle center between the two mounting rods 021 is the same as the horizontal distance of the axle center between the two support rods 011, so that the pair of parallel mounting rods 021 can be sleeved on the pair of support rods 011 to extend inwards and the support rods can stretch and move to adjust the distance between the far middle guide plate 2 and the tooth fixing sleeve 1.

The bracing piece 011 of this embodiment adopts the elastic metal material preparation, and when the installation pole cover was established in the bracing piece, lock closure cardboard 5 was outside to the bracing piece, and fluting 051 on the closure cardboard 5 makes the bracing piece shrink and will install the pole fixed.

Therefore, the locking clip 5 of the present embodiment is used as a locking structure for fixing or separating the mounting rod and the support rod, so as to detachably connect the mounting rod and the support rod.

Preferably, the locking catch plate of the present embodiment may further select: the two ends of the semicircular section of the locking clamping plate 5 are provided with protrusions 052, and the installation rod and the supporting rod can be fixed by the aid of the protrusions 052 at the two ends, so that the locking clamping plate 5 is more tightly fixed.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (9)

1. The utility model provides a well guide plate formula space holder far away, includes fixed cover of tooth (1) and well baffle (2) far away, fixed cover of tooth (1) one side transversely is provided with bracing piece (011) that is parallel to each other, well baffle (2) one side far away is provided with installation pole (021) that are parallel to each other, bracing piece (011) and installation pole (021) correspond each other and stretch out and draw back and cup joint its characterized in that: the supporting rod (011) and the mounting rod (021) are provided with locking structures, and the locking structures enable the supporting rod (011) and the mounting rod (021) to be detachably connected.

2. The distal guide plate lash holder of claim 1, wherein: the locking structure comprises a locking pipe (3) sleeved on the supporting rod (011), wherein inner threads (031) are arranged on the wall of an inner cavity at one end of the locking pipe (3), and an inner cavity at the other end of the locking pipe is a conical surface (032); the front end of installation pole (021) is provided with can overlap the cover and establish and reduce cover (023) on bracing piece (011), reduces cover (023) tip and prolongs the axial and is provided with the slotted hole that runs through to reduce set mantle wall, reduces the outer peripheral face of cover (023) and locking pipe conical surface (032) phase-match, still is provided with on installation pole (021) of cover (023) rear end with external screw thread (022) that internal thread (031) matches.

3. The distal guide plate type lash holder of claim 2, wherein: the conical surface (032) has a small opening at the outer end of the locking pipe (3) and a large opening at the inner end.

4. The distal guide plate type space holder according to claim 1, wherein: the locking structure comprises a locking clamping sleeve (4) connected to the supporting rod, the cross section of the locking clamping sleeve (4) is of a semi-annular structure, the inner diameter of the locking clamping sleeve (4) is slightly smaller than the outer diameter of the mounting rod (021), and the mounting rod (021) can be clamped in the locking clamping sleeve (4).

5. The distal guide plate type space holder according to claim 4, wherein: the length H extending out of the two ends of the semi-ring structure is slightly larger than the inner diameter of the semi-ring.

6. The distal guide plate lash holder of claim 4, wherein: the cross section of the locking cutting sleeve (4) is of a C-shaped structure.

7. The distal guide plate type space holder according to claim 1, wherein: the locking structure comprises a locking clamping plate (5) hinged to a supporting rod (011), a clamping groove (051) capable of clamping and clamping a mounting rod (021) is formed in the lower plate surface of the locking clamping plate (5), the supporting rod (011) is a hollow pipe capable of being sleeved with the mounting rod, and a slotted hole penetrating through the pipe wall is formed in the end portion of the supporting rod (011) in the axial direction.

8. The distal guide plate type space holder according to claim 7, wherein: the cross section of the clamping groove (051) is of a semicircular structure.

9. The distal guide plate type lash holder of claim 8, wherein: and bulges (052) are arranged at two ends of the semicircular structure.

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