Oral cavity dilator for dental examination

Abstract

The oral cavity dilator comprises a deck chair and a head sleeve, a longitudinal first groove is formed in the middle of a chair back of the deck chair, a first threaded rod is rotationally connected to the inner wall of the first groove, and the first threaded rod is in threaded connection with the rear end of the head sleeve; the front end of the head sleeve is in threaded connection with a first fixing bolt, the tail end of the first fixing bolt is arranged in the head sleeve and is rotationally connected with an arc-shaped fixing block, and a rotary telescopic device is arranged on the outer wall of one side of the head sleeve. The two denture supports are separated from each other by rotating the threaded rod, so that the opening effect is achieved, the neck pillow is arranged on the lower portion of the head cover, neck fatigue is effectively prevented, the situation that the detection of a dentist is affected due to the fact that a child moves randomly in the detection process is prevented, the mouth can be opened to the maximum degree, and neck fatigue is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to dental examination technical field, concretely is dental examination with oral cavity spreader. BACKGROUND

[0002] In order to keep your teeth cleaner, more durable, and also can prevent the emergence of pain and other problems, people will regularly check, when the dentist finds the problem and needs to be handled, at present our country many children will have cavity problem, the existing cavity spreader is similar to scissors, through the limiting device makes both keep a certain angle, but this kind of oral cavity spreader is inconvenient for children to use, because children will move disorderly when checking, thereby affecting the examination and processing of dentist, even can lead to cavity injury, according to the existing patent CN 217525479 U discloses a kind of oral cavity spreader for stomatology, by simultaneously manually rotating screw rod, when rotating screw rod, two screw rods will drive sliding block to move along first support rod downwards etc., can conveniently use oral cavity spreader for stomatology, provide the convenience to people to a certain extent, the existing this is sitting and is detected, there is lower jaw pain and mouth is not big, and also inconvenient for dentist to operate, long time will cause neck fatigue.

[0003] For this, we propose dental examination with oral cavity spreader. SUMMARY

[0004] The utility model aims at providing dental examination with oral cavity spreader to solve the problem in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: dental examination with oral cavity spreader includes recliner and headgear, the middle position of recliner back is set with a first recess in longitudinal direction, first recess inner wall is rotatably connected with first screw rod, the rear end of headgear is screw connected on first screw rod, the front end of headgear is screw connected with first fixed bolt, the tail end of first fixed bolt is placed in headgear and rotatably connected with arc fixed block, the one side outer wall of headgear is rotatably connected with telescopic device, one end of telescopic device is equipped with spreader.

[0006] Preferably, the telescopic device comprises a connecting rod and a third groove, one end of the connecting rod is rotationally connected with the outer side wall of the headgear, the other end of the connecting rod is provided with the third groove, a telescopic rod is slidably connected with the inner wall of the third groove, the telescopic rod is hollow, a plurality of clamping holes are equidistantly formed in the inner wall of the third groove, a through hole is formed in one end of the telescopic rod, a V-shaped elastic sheet is mounted on the inner wall of the telescopic rod, one end of the V-shaped elastic sheet is fixed to the side wall of the telescopic rod, the other end of the V-shaped elastic sheet is fixedly connected with a clamping block, the clamping block passes through the through hole and is clamped with one of the clamping holes, and a hollow hemispherical block is fixed to the outer end of the telescopic rod.

[0007] Preferably, the expansion device comprises a spherical block and an expansion rod, the hollow hemispherical block is slidably connected with the spherical block, the outer wall of the hollow hemispherical block is threadedly connected with a second fixing bolt, the outer wall of the spherical block is fixedly connected with the expansion rod, the expansion rod is internally provided with a second groove, the second groove is rotationally connected with a second threaded rod, the two ends of the second threaded rod are threadedly connected with threaded sliding rods, and the side of the two threaded sliding rods close to the headgear is fixedly connected with a dental brace.

[0008] Preferably, the second threaded rod is a bidirectional threaded rod.

[0009] Preferably, one end of the second threaded rod protrudes out of the second groove and is fixedly connected with a rotating handle.

[0010] Preferably, the rear end of the headgear is connected with a downward neck pillow.

[0011] Preferably, one side of the fixing block is fixedly connected with a limiting rod, and the limiting rod is slidably connected with the headgear.

[0012] Preferably, one side of the fixing block is fixedly connected with a rubber pad.

[0013] Compared with the prior art, the headgear has the advantages that:

[0014] The headgear is designed on the recliner, the child's forehead is fixed on the recliner through the first fixing bolt and the fixing block, the two dental braces are away from each other through the rotating threaded rod, the expansion effect is achieved, the neck pillow arranged at the lower part of the headgear effectively prevents neck fatigue, this design prevents the child from moving randomly during the examination and affecting the dentist's detection, the mouth is maximally opened, and the neck fatigue is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the utility model;

[0016] Figure 2 It is a headgear structure schematic view of the utility model;

[0017] Figure 3This is a side sectional view of the connecting rod of this utility model.

[0018] Figure 4 This is a schematic diagram of the telescopic rod structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the through-hole structure of this utility model.

[0020] In the diagram: 1. Recliner; 2. Headrest; 3. First groove; 4. First threaded rod; 5. First fixing bolt; 6. Fixing block; 7. Telescopic device; 8. Spreading device; 9. Rotating handle; 10. Neck pillow; 11. Limiting rod; 12. Rubber pad; 71. Connecting rod; 72. Third groove; 73. Telescopic rod; 74. Locking hole; 75. Through hole; 76. Locking block; 77. Hollow hemispherical block; 78. V-shaped spring; 81. Spherical block; 82. Second fixing bolt; 83. Second groove; 84. Second threaded rod; 85. Threaded slide rod; 86. Dental bracket; 87. Spreading rod. Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-5 As shown, a dental examination oral retractor includes a reclining chair 1 and a head cover 2. A longitudinal first groove 3 is provided in the middle of the backrest of the reclining chair 1. A first threaded rod 4 is rotatably connected to the inner wall of the first groove 3. The rear end of the head cover 2 is threadedly connected to the first threaded rod 4. A first fixing bolt 5 is threadedly connected to the front end of the head cover 2. The end of the first fixing bolt 5 is placed inside the head cover 2 and rotatably connected to an arc-shaped fixing block 6. A telescopic device 7 is rotatably telescopic on one side of the outer wall of the head cover 2. A retractable device 8 is provided at one end of the telescopic device 7. A downward neck pillow 10 is connected to the rear end of the head cover 2. A limiting rod 11 is fixedly connected to one side of the fixing block 6. The limiting rod 11 is slidably connected to the head cover 2. A rubber pad 12 is fixedly connected to one side of the fixing block 6.

[0023] Please see Figures 3-5As shown, the telescopic device 7 includes a connecting rod 71 and a third groove 72. One end of the connecting rod 71 is rotatably connected to the outer wall of the headgear 2. The other end of the connecting rod 71 has a third groove 72. A telescopic rod 73 is slidably connected to the inner wall of the third groove 72. The telescopic rod 73 has a hollow interior. The inner wall of the third groove 72 has equidistant locking holes 74. One end of the telescopic rod 73 has a through hole 75. A V-shaped spring piece 78 is installed on the inner wall of the telescopic rod 73. One end of the V-shaped spring piece 78 is fixed to the side wall of the telescopic rod 73, and the other end is fixedly connected to a locking block 76. The locking block 76 passes through the through hole 75 and engages with one of the locking holes 74. A hollow hemispherical block 77 is fixed to the outer end of the telescopic rod 73.

[0024] Please see Figures 3-5 As shown, the spreading device 8 includes a spherical block 81 and a spreading rod 87. The spherical block 81 is slidably connected inside the hollow hemispherical block 77. A second fixing bolt 82 is threadedly connected to the outer wall of the hollow hemispherical block 77. The spreading rod 87 is fixedly connected to the outer wall of the spherical block 81. A second groove 83 is formed inside the spreading rod 87. A second threaded rod 84 is rotatably connected to the inner wall of the second groove 83. Threaded sliding rods 85 are threadedly connected to both ends of the second threaded rod 84. A tooth bracket 86 is fixedly connected to the side of the two threaded sliding rods 85 near the headgear 2. The second threaded rod 84 is a bidirectional threaded rod. A rotating handle 9 is fixedly connected to one end of the second threaded rod 84 that extends out of the second groove 83.

[0025] Working principle: When using this invention, firstly, let the child lie on the recliner 1 and adjust to a comfortable position. Then, rotate the first threaded rod 4 to allow the headgear 2 to slide down to the child's forehead. At this time, rotate the first fixing bolt 5, and the fixing block 6 moves downward with the cooperation of the first fixing bolt 5 and the limiting rod 11, fixing the head to the headgear 2. Then, adjust the two mouthguards 86 according to the child's different face shape. When the length needs to be adjusted, simply pull the telescopic rod 73, so that the locking block 76 on the V-shaped spring 78 presses against the locking hole 74. When the locking block 76 is squeezed into the telescopic rod 73, the telescopic rod 73 and the connecting rod 71 slide until they move to the appropriate position. Then, the second fixing bolt 82 is rotated so that the spherical block 81 is no longer restricted and can slide easily on the inner wall of the hollow hemispherical block 77. After the position is adjusted, the second fixing bolt 82 is rotated again. Finally, the rotating handle 9 is rotated so that the second threaded rod 84 rotates. Since the second threaded rod 84 is a bidirectional threaded rod, the two threaded sliding rods 85 are separated from each other and the child cavity is opened by the two dental brackets 86.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. Dental examination oral retractors, including: A recliner (1) and a head cover (2) are provided. A first longitudinal groove (3) is provided in the middle of the back of the recliner (1). A first threaded rod (4) is rotatably connected to the inner wall of the first groove (3). The rear end of the head cover (2) is threadedly connected to the first threaded rod (4). The head cover (2) is characterized in that: a first fixing bolt (5) is threadedly connected to the front end of the head cover (2). The end of the first fixing bolt (5) is placed inside the head cover (2) and rotatably connected to an arc-shaped fixing block (6). A telescopic device (7) is rotatably connected to the outer wall of one side of the head cover (2). A spreading device (8) is provided at one end of the telescopic device (7).

2. The dental retractor for dental examination according to claim 1, characterized in that: The telescopic device (7) includes a connecting rod (71) and a third groove (72). One end of the connecting rod (71) is rotatably connected to the outer wall of the headgear (2). The other end of the connecting rod (71) is provided with a third groove (72). The inner wall of the third groove (72) is slidably connected to a telescopic rod (73). The telescopic rod (73) is hollow inside. The inner wall of the third groove (72) is provided with equidistant locking holes (74). One end of the telescopic rod (73) is provided with a through hole (75). A V-shaped spring piece (78) is installed on the inner wall of the telescopic rod (73). One end of the V-shaped spring piece (78) is fixed to the side wall of the telescopic rod (73), and the other end is fixedly connected to a locking block (76). The locking block (76) passes through the through hole (75) and engages with one of the locking holes (74). A hollow hemispherical block (77) is fixed to the outer end of the telescopic rod (73).

3. The dental retractor for dental examination according to claim 2, characterized in that: The opening device (8) includes: a spherical block (81) and an opening rod (87). The spherical block (81) is slidably connected inside the hollow hemispherical block (77). The outer wall of the hollow hemispherical block (77) is threaded with a second fixing bolt (82). The outer wall of the spherical block (81) is fixedly connected with the opening rod (87). The opening rod (87) has a second groove (83) inside. The inner wall of the second groove (83) is rotatably connected with a second threaded rod (84). The two ends of the second threaded rod (84) are threadedly connected with threaded slide rods (85). The two threaded slide rods (85) are fixedly connected with a dental tray (86) on the side of the headgear (2) near the headgear (2).

4. The dental retractor for dental examination according to claim 3, characterized in that: The second threaded rod (84) is a bidirectional threaded rod.

5. The dental retractor for dental examination according to claim 3, characterized in that: One end of the second threaded rod (84) extends out of the second groove (83) and is fixedly connected to a rotating handle (9).

6. The dental retractor for dental examination according to claim 1, characterized in that: The headgear (2) is connected to a downward-facing neck pillow (10) at the rear end.

7. The dental retractor for dental examination according to claim 1, characterized in that: A limiting rod (11) is fixedly connected to one side of the fixing block (6), and the limiting rod (11) is slidably connected to the headgear (2).

8. The dental retractor for dental examination according to claim 1, characterized in that: A rubber pad (12) is fixedly connected to one side of the fixing block (6).

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