Oral cavity opening device

Abstract

The utility model belongs to the technical field of oral cavity opening, and particularly relates to an oral cavity opening device which comprises a holding part and two meshing parts symmetrically and rotatably installed at one end of the holding part, and a movable moving block is installed in the holding part in the axial direction. A mounting plate connected with the two meshing parts is mounted on the side, close to the meshing parts, of the moving block, an adjusting mechanism used for adjusting the length is mounted between the moving block and the mounting plate, a limiting column is movably mounted on the moving block, and a limiting hole for containing the limiting column is formed in the holding part; when one end of the limiting column is inserted into the limiting hole, the limiting column and the moving block are additionally arranged, and when the limiting column is separated from the limiting hole, the moving block can move in the holding part, so that the mounting plate can be driven to move towards one side far away from the meshing parts, and the two meshing parts can be driven to be folded together; the occlusion part can be conveniently separated from the oral cavity.

Description

Technical Field

[0001] The utility model belongs to the technical field of oral opening, and in particular relates to an oral opening device. Background Art

[0002] An opening device is needed to open the mouth. The opening device, also known as a mouth opener, is an instrument used to open the mouth when the person has difficulty breathing or is unconscious and needs gastric lavage.

[0003] The existing mouth opener includes two biting parts, a gripping part, a transmission mechanism and an adjusting bolt. By rotating the adjusting bolt, the two biting parts can be driven to expand or close at one end of the gripping part through the transmission mechanism. When the adjusting bolt is rotated, the rotation process is slow and it cannot be quickly detached from the patient's mouth, which is not conducive to the intervention of other medical devices. Utility Model Content

[0004] The purpose of the utility model is to provide an oral opening device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an oral opening device, comprising: a gripping portion and two biting portions symmetrically rotatably mounted on one end of the gripping portion, a movable moving block being mounted in the axial direction of the gripping portion, a mounting plate connecting the two biting portions being mounted on the side of the moving block close to the biting portion, an adjustment mechanism for length adjustment being mounted between the moving block and the mounting plate, a limiting column being movably mounted on the moving block, a limiting hole for accommodating the limiting column being provided on the gripping portion, and when one end of the limiting column is inserted into the limiting hole, the moving block is restricted from moving.

[0006] Preferably, a mounting hole is further provided on the moving block, one end of the limiting column is at least partially movably inserted in the mounting hole, and an elastic sheet abutting against the limiting column is installed in the mounting hole.

[0007] Preferably, the adjustment mechanism includes a screw and a rotating part installed at one end of the screw, the rotating part is arranged on the outer side of the end of the holding part away from the biting part, the moving block is penetrated by a threaded hole for accommodating the screw to spirally pass through, and the mounting plate is rotatably installed on the end of the screw away from the rotating part.

[0008] Preferably, a rotating rod is installed at one end of the mounting plate close to the screw rod, and a rotating groove for accommodating the rotation of the rotating rod is opened at one end of the screw rod.

[0009] Preferably, a mobile bin is provided on one side of the holding portion close to the biting portion, the cross-section of the mobile bin is a rectangular structure, one end of the mobile bin is an open end, two rotating shafts are symmetrically installed in the open end, and one end of the two biting portions are rotatably installed on the two rotating shafts respectively.

[0010] Preferably, a connecting rod is rotatably mounted on the inner side of each of the engaging portions, and the other end of each of the connecting rods is rotatably mounted on a mounting plate.

[0011] Preferably, a plurality of tooth grooves are formed on opposite sides of the two engaging portions, and the tooth grooves are arc-shaped structures.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] (1) The utility model adds a limit post and a moving block. When the limit post is separated from the limit hole, the moving block can move in the gripping part, thereby driving the mounting plate to move to the side away from the biting part, and then driving the two biting parts to be folded together, making it easier for the biting part to be separated from the oral cavity.

[0014] (2) The utility model adds a mounting hole and an elastic sheet, and installs the elastic sheet in the direction of movement of the limit column through the mounting hole. At the same time, the elastic force of the elastic sheet allows the limit column to always remain inserted into the limit hole, thereby preventing the moving block from being released from the restriction and causing the bite part to close during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view of the utility model;

[0016] Figure 2 It is a cross-sectional view of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the rotating shaft, the moving bin and the gripping part of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the moving block, threaded hole and limiting column of the utility model;

[0019] In the figure: 1. tooth groove; 2. bite part; 3. rotating shaft; 4. gripping part; 5. limiting column; 6. rotating part; 7. screw rod; 8. connecting rod; 9. limiting hole; 10. elastic sheet; 11. mounting hole; 12. threaded hole; 13. moving bin; 14. mounting plate; 15. rotating rod; 16. rotating groove; 17. moving block. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] refer to Figure 1-2 As shown, the utility model provides an oral opening device, comprising: a gripping portion 4 and two biting portions 2 symmetrically rotatably mounted at one end of the gripping portion 4, a movable moving block 17 is mounted in the gripping portion 4 along the axial direction, a mounting plate 14 connecting the two biting portions 2 is mounted on the side of the moving block 17 close to the biting portion 2, an adjusting mechanism for length adjustment is mounted between the moving block 17 and the mounting plate 14, a limiting column 5 is movably mounted on the moving block 17, a limiting hole 9 for accommodating the limiting column 5 is opened on the gripping portion 4, and when one end of the limiting column 5 is inserted into the limiting hole 9, the limiting moving block 17 is restricted from moving.

[0022] As mentioned above, when using the holding part 4, two biting parts 2, moving block 17, mounting plate 14, adjustment mechanism, limiting column 5 and limiting hole 9 provided by the utility model, when the limiting column 5 is inserted into the limiting hole 9, the two biting parts 2 are inserted into the oral cavity through the holding part 4. At this time, the position of the mounting plate 14 in the holding part 4 is adjusted by the adjustment mechanism, thereby driving the two biting parts 2 to unfold. At this time, the oral cavity is opened. When the biting part 2 needs to be taken out, the limiting column 5 is disengaged from the limiting hole 9. At this time, the restriction on the movement of the moving block 17 is released. At the same time, under the bite force of the two biting parts 2 in the oral cavity, the mounting plate 14 is driven to move to the side away from the biting part 2, thereby driving the moving block 17 to shift in the holding part 4. At this time, the two biting parts 2 are automatically closed, making it easy for the two biting parts 2 to be removed from the oral cavity.

[0023] Further, in order to provide a mounting position for the movable block 17 and the two engaging parts 2, refer to Figure 2-3 As shown, a moving bin 13 is provided on one side of the gripping portion 4 close to the biting portion 2. The cross section of the moving bin 13 is a rectangular structure. One end of the moving bin 13 is an open end. Two rotating shafts 3 are symmetrically installed in the open end. One end of the two biting portions 2 is rotatably installed on the two rotating shafts 3. The moving bin 13 facilitates the moving block 17 to be moved and installed in the gripping portion 4. At the same time, the moving bin 13 can be used to install both rotating shafts 3 in the gripping portion 4. The two rotating shafts 3 provide installation positions for the two biting portions 2.

[0024] Further, in order to connect the two bite parts 2 with the mounting plate 14, refer to Figure 2 As shown, a connecting rod 8 is rotatably mounted on the inner side of each bite portion 2, and the other end of each connecting rod 8 is rotatably mounted on the mounting plate 14. The two connecting rods 8 are convenient for connecting the two bite portions 2 with the mounting plate 14. When the mounting plate 14 moves, the connecting rods 8 can drive the two bite portions 2 to expand outward or close inward.

[0025] Further, in order to prevent the teeth from being separated from the occlusal part 2, refer to Figure 1-2As shown, a plurality of tooth grooves 1 are provided on the opposite sides of the two bite parts 2, and the tooth grooves 1 are arc-shaped structures. The two bite parts 2 are inserted into the oral cavity, and the teeth in the oral cavity are respectively located in the tooth grooves 1 on the two bite parts 2. When the two bite parts 2 are unfolded, the tooth grooves 1 prevent the bite parts 2 from leaving the oral cavity.

[0026] In the present utility model, combined with Figure 2 As shown, the moving block 17 of this embodiment is further provided with a mounting hole 11 , one end of the limiting column 5 is at least partially movably inserted in the mounting hole 11 , and an elastic sheet 10 abutting against the limiting column 5 is installed in the mounting hole 11 .

[0027] As mentioned above, when using the elastic sheet 10 provided by the utility model, the elastic sheet 10 is installed on one end of the limiting column 5 through the installation hole 11. The elastic force of the elastic sheet 10 allows one end of the limiting column 5 to always remain inserted into the limiting hole 9, thereby preventing the limiting column 5 from automatically detaching from the limiting hole 9, thereby preventing the two biting parts 2 from automatically detaching from the oral cavity.

[0028] In the present utility model, combined with Figure 1-2 and Figure 4 As shown, the adjustment mechanism of this embodiment includes a screw rod 7 and a rotating part 6 installed at one end of the screw rod 7. The rotating part 6 is arranged on the outer side of the end of the holding part 4 away from the biting part 2. The moving block 17 is penetrated by a threaded hole 12 for accommodating the screw rod 7 to spirally pass through. The mounting plate 14 is rotatably installed on the end of the screw rod 7 away from the rotating part 6.

[0029] Combination Figure 2 As shown, a rotating rod 15 is installed at one end of the mounting plate 14 close to the screw rod 7, and a rotating groove 16 for accommodating the rotation of the rotating rod 15 is opened at one end of the screw rod 7.

[0030] As mentioned above, when using the adjustment mechanism provided by the utility model, the screw rod 7 in the adjustment mechanism is threadedly connected to the moving block 17 through the threaded hole 12, and the screw rod 7 can be driven to rotate in the threaded hole 12 through the rotating part 6, so that the mounting plate 14 can be driven away from the moving block 17 or close to the moving block 17. When the mounting plate 14 is away from the moving block 17, the two bite parts 2 can be driven to expand outward, which is convenient for opening the oral cavity. When the mounting plate 14 is close to the moving block 17, the two bite parts 2 can be driven to close inward, which is convenient for removing the bite parts 2 from the oral cavity. When the screw rod 7 rotates, the rotating rod 15 and the rotating groove 16 prevent the mounting plate 14 from rotating therewith, thereby facilitating the mounting plate 14 to move in the moving bin 13.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oral opening device, characterized in that: include: A gripping portion (4) and two engaging portions (2) symmetrically rotatably mounted on one end of the gripping portion (4); a movable moving block (17) is mounted in the gripping portion (4) along the axial direction; a mounting plate (14) connecting the two engaging portions (2) is mounted on the side of the moving block (17) close to the engaging portion (2); an adjusting mechanism for length adjustment is mounted between the moving block (17) and the mounting plate (14); a limiting column (5) is movably mounted on the moving block (17); a limiting hole (9) for accommodating the limiting column (5) is provided on the gripping portion (4); when one end of the limiting column (5) is inserted into the limiting hole (9), the moving block (17) is restricted from moving.

2. An oral opening device according to claim 1, characterized in that: The movable block (17) is also provided with a mounting hole (11), one end of the limiting column (5) is at least partially movably inserted into the mounting hole (11), and an elastic sheet (10) abutting against the limiting column (5) is installed in the mounting hole (11).

3. The oral opening device according to claim 1, characterized in that: The adjustment mechanism comprises a screw (7) and a rotating portion (6) mounted on one end of the screw (7); the rotating portion (6) is arranged on the outer side of the end of the gripping portion (4) away from the biting portion (2); a threaded hole (12) is penetrated through the moving block (17) for accommodating the screw (7) to pass through; and the mounting plate (14) is rotatably mounted on the end of the screw (7) away from the rotating portion (6).

4. An oral opening device according to claim 3, characterized in that: A rotating rod (15) is installed at one end of the mounting plate (14) close to the screw rod (7), and a rotating groove (16) for accommodating the rotation of the rotating rod (15) is opened at one end of the screw rod (7).

5. The oral opening device according to claim 1, characterized in that: A movable bin (13) is provided on one side of the gripping portion (4) close to the engaging portion (2); the cross section of the movable bin (13) is a rectangular structure; one end of the movable bin (13) is an open end; two rotating shafts (3) are symmetrically mounted in the open end; one end of the two engaging portions (2) are rotatably mounted on the two rotating shafts (3) respectively.

6. The oral opening device according to claim 1, characterized in that: A connecting rod (8) is rotatably mounted on the inner side of each of the engaging portions (2), and the other end of each of the connecting rods (8) is rotatably mounted on a mounting plate (14).

7. The oral opening device according to claim 1, characterized in that: A plurality of tooth grooves (1) are provided on the opposite sides of the two engaging portions (2), and the tooth grooves (1) are arc-shaped structures.

Images