Oral detection expansion device

Abstract

The application discloses an oral cavity detection expansion device and relates to the technical field of medical devices.The device comprises a support ring, which is in the shape of an open circular ring, and a sleeve joint ring is arranged outside the support ring.A moving sleeve is in communication with the outside of the sleeve joint ring.A threaded adjusting seat is arranged inside the moving sleeve through a plug-in structure.A threaded rod is screw-connected to the inside of the threaded adjusting seat.An expansion hook is rotatably connected to the bottom of the threaded rod.The sleeve joint ring is rotated towards the inside of the human cavity, so that the threaded rod and the expansion hook can be inserted into the oral cavity, forming outward-to-inward pulling support.The arrangement of the external rubber layer outside the support ring and the cooperation with the positioning bolt can enable the sleeve joint ring to form a stepless adjusting effect outside the support ring, which is convenient for medical staff to adjust at will according to requirements without the need for additional auxiliary positioning, simplifies the use method as a whole, and improves the adjusting efficiency of the medical staff.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to an oral cavity detection and expansion device. BACKGROUND

[0002] In the process of diagnosing and treating oral diseases, patients need to keep their mouths open for a long time to receive examination or treatment. However, continuous opening of the mouth can cause facial muscle fatigue, making it difficult for patients to cooperate for a long time, and even causing muscle spasm. This physiological response not only forces the treatment to be interrupted, affecting the continuity of the operation, but also significantly prolongs the diagnosis and treatment time and reduces work efficiency.

[0003] The existing oral cavity support device generally has functional defects: most products adopt a fixed structure design and cannot be dynamically adjusted according to the differences in the oral cavity of patients. For example, a standard oral cavity expander can only achieve expansion of the jaw in a single direction and cannot expand the mouth on both sides. This limitation causes the diagnosis and treatment field of view to be blocked, and the doctor needs to frequently adjust the observation angle, and in some cases, the doctor needs to look from the side of the expander, which not only increases the operation difficulty but also affects the accuracy of diagnosis.

[0004] In the prior art, an arch-shaped expansion body with a circular segment is used to reduce the insufficient observation angle of the existing expander and improve the opening stability, but the arch-shaped expansion body with a circular segment is a flat circular ring, and the overall adjustment uses many mechanical components such as gears and ratchet plates, which is relatively complex, and the pulling hook cannot be stretched into the oral cavity for pulling support. Therefore, an oral cavity detection and expansion device is proposed. SUMMARY

[0005] The purpose of the present application is to provide an oral cavity detection and expansion device to solve the problems raised in the background.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: an oral cavity detection and expansion device, comprising a support ring, the support ring is in the shape of an open circular ring, a sleeve ring is sleeved on the outside of the support ring, a moving sleeve is communicated on the outside of the sleeve ring, a threaded adjusting seat is installed in the inside of the moving sleeve through a plug-in structure, a threaded rod is screw-connected in the inside of the threaded adjusting seat, and an expansion hook is rotationally connected at the bottom of the threaded rod.

[0007] An external rubber layer is integrally formed on the outside of the support ring, a threaded hole is formed on the outside of the sleeve ring, a positioning bolt is screw-connected in the inside of the threaded hole, and the positioning bolt is used to pass through the threaded hole and abut against the external rubber layer to extrude the external rubber layer and fix and limit the sleeve ring.

[0008] Preferably, the plug-in structure comprises a rotating seat slidingly connected to the inside of the moving sleeve, the outside of the rotating seat is fixedly connected with a positioning cutting plate, the outside of the supporting ring is integrally formed with a positioning surface, the outside of the positioning surface is integrally formed with a plurality of positioning metal rods, and the positioning cutting plate is plugged into the inside of the plurality of positioning metal rods.

[0009] Preferably, the outside of the positioning metal rod is integrally formed with an outer layer of high-elastic rubber extrusion seat, and the spacing between a plurality of the outer layer of high-elastic rubber extrusion seats is greater than 0.2mm.

[0010] Preferably, the outer layer of high-elastic rubber extrusion seat is tapered, the tapered tip faces the rotating seat, and the tapered outer layer of high-elastic rubber extrusion seat is integrally formed with a parallel extrusion surface close to the outer wall surface of the positioning surface.

[0011] Preferably, the outside of the threaded adjusting seat is fixedly connected with two rubber extrusion blocks, a clamping gap is formed between the two rubber extrusion blocks, the rubber extrusion block is attached to the outer wall of the threaded rod on one side close to the threaded rod, and the top of the threaded rod is fixedly connected with a knob.

[0012] Preferably, the inside of the sleeve ring is fixedly connected with a plurality of universal balls, and the universal balls are used to assist the movement of the sleeve ring on the outer rubber layer.

[0013] Preferably, the inner wall surface of the moving sleeve and the outer wall surface of the rotating seat are both fixedly connected with an annular blocking block.

[0014] Preferably, the inside of the supporting ring is fixedly connected with a magnetic attraction plate.

[0015] Preferably, the outside of the positioning cutting plate is integrally formed with a plurality of inverted ratchet plates, and the inverted ratchet plates are used to increase the friction between the outer layer of high-elastic rubber extrusion seat when the positioning cutting plate is plugged into the inside of the positioning metal rod.

[0016] Preferably, the outer wall surface of the parallel extrusion surface is integrally formed with a plurality of magnetic attraction blocks.

[0017] Compared with the prior art, the present application has the following advantages:

[0018] In the present application, the supporting ring in the form of a round rod can make the rotating sleeve ring face the inside of the human cavity during the adjustment of the direction of the expansion hook, so that the threaded rod and the expansion hook can be stretched into the oral cavity to form an outward pulling support, and the positioning bolt cooperated with the outer rubber layer outside the supporting ring can make the sleeve ring form a stepless adjustment effect outside the supporting ring, which is convenient for medical staff to adjust as needed without additional positioning, simplifies the use method as a whole, and improves the adjustment efficiency of medical staff. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the embodiment of the present application;

[0020] Figure 2 It is a structural schematic diagram of the separation state of the moving sleeve and the rotating seat in the embodiment of the present application;

[0021] Figure 3 It is a lateral structural schematic diagram of the positioning metal rod in the embodiment of the present application;

[0022] Figure 4 It is a structural schematic diagram of the connection state of the positioning metal rod and the positioning cutting plate in the embodiment of the present application;

[0023] Figure 5 It is a structural schematic diagram of the outer layer high-elastic rubber extrusion seat in the embodiment of the present application;

[0024] Figure 6 It is a structural schematic diagram of the outer layer high-elastic rubber extrusion seat in the embodiment of the present application;

[0025] Figure 7 It is a structural schematic diagram of the inverted spine-shaped magnetic powder capsule in the embodiment of the present application;

[0026] Figure 8 It is a sectional structural schematic diagram of the sleeve joint ring in the embodiment of the present application.

[0027] In the figure: 100, support ring; 101, sleeve joint ring; 102, positioning bolt; 103, moving sleeve; 104, rotating seat; 105, threaded adjusting seat; 106, threaded rod; 107, expansion hook; 108, knob; 109, outer rubber layer; 200, positioning surface; 201, positioning metal rod; 202, positioning cutting plate; 300, outer layer high-elastic rubber extrusion seat; 301, parallel extrusion surface; 302, inverted ratchet plate; 303, magnetic attraction block; 400, magnetic attraction plate; 500, rubber extrusion block; 600, universal ball; 700, annular blocking block. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0029] Embodiment one, as Figure 1As shown, the oral cavity detection expansion device of the present application comprises a support ring 100, the support ring 100 is in the form of an open circular ring, the outer part of the support ring 100 is sleeved with a sleeve ring 101, the outer part of the sleeve ring 101 is communicated with a moving sleeve 103, the inside of the moving sleeve 103 is installed with a threaded adjusting seat 105 through a plug-in structure, the inside of the threaded adjusting seat 105 is threadedly connected with a threaded rod 106, the bottom of the threaded rod 106 is rotatably connected with an expansion hook 107;

[0030] The outer part of the support ring 100 is integrally formed with an outer rubber layer 109, the outer part of the sleeve ring 101 is provided with a threaded hole, the inside of the threaded hole is threadedly connected with a positioning bolt 102, the positioning bolt 102 is used to pass through the threaded hole and produce close extrusion of the outer rubber layer 109 and fix and limit the sleeve ring 101.

[0031] Specifically, during use, the support ring 100 in the form of an open circular ring can be externally sleeved with any number of sleeve rings 101, and after the sleeve ring 101 is sleeved, the direction of the threaded adjusting seat 105 can be adjusted through the plug-in structure, as shown by the arrow direction in Figure 1 , the sleeve ring 101 can be rotated around the support ring 100, so that the threaded rod 106 and the expansion hook 107 are adjusted to be deeply inserted into the human oral cavity during use, and the external part can be directly inserted into the human oral cavity to form a pulling support position.

[0032] Further, after the sleeve ring 101 is sleeved to the outside of the support ring 100, the worker can adjust the sleeve ring 101 to the specified position outside the support ring 100, after adjusting to the specified position, the worker rotates the threaded rod 106 through the hand-held knob 108, so that the threaded rod 106 moves up and down in the inside of the threaded adjusting seat 105, when the threaded rod 106 drives the expansion hook 107 to reach the specified oral cavity support position, the expansion hook 107 abuts against the support position in the oral cavity, after abutting, the threaded rod 106 is rotated upward through the knob 108, so that the expansion hook 107 is pulled upward, after the expansion hook 107 is pulled upward, the expansion hook 107 will pull the positioning point, so as to form a fixed expansion point.

[0033] Further, in the use process, when the sleeve ring 101 is sleeved on the outside of the support ring 100, when it is necessary to fix the sleeve ring 101, the staff can rotate the positioning bolt 102, so that the positioning bolt 102 is gradually screwed into the inside of the sleeve ring 101, and when the positioning bolt 102 contacts the outer wall of the support ring 100, the positioning bolt 102 will preferentially contact the outer rubber layer 109, and when the positioning bolt 102 is continuously rotated, the positioning bolt 102 can continuously extrude the outer rubber layer 109, forming a positioning effect, because of the contact and extrusion between the positioning bolt 102 and the outer rubber layer 109, so that the positioning bolt 102 cannot move and slip outside the outer rubber layer 109, ensuring the positioning stability of the positioning bolt 102 to the sleeve ring 101.

[0034] As shown in Figure 2 The outer part of the threaded adjusting seat 105 is fixedly connected with two rubber extrusion blocks 500, and a clamping gap is formed between the two rubber extrusion blocks 500. The side of the rubber extrusion block 500 close to the threaded rod 106 is attached to the outer wall of the threaded rod 106. The top of the threaded rod 106 is fixedly connected with a knob 108.

[0035] Specifically, in the use process, the inside of the threaded adjusting seat 105 has an internal thread, and the outside of the threaded rod 106 has an external thread. When the threaded rod 106 is rotated, the threaded rod 106 and the internal thread and external thread of the threaded adjusting seat 105 are connected with each other, so that the position of the threaded rod 106 in the threaded adjusting seat 105 can be adjusted. In the use process, the outside of the threaded adjusting seat 105 is connected with two rubber extrusion blocks 500. The two rubber extrusion blocks 500 are made of soft material and are separated in the middle. In this case, medical staff can more easily press the threaded rod 106 into the inside of the threaded adjusting seat 105 when clamping the threaded rod 106 into the inside of the threaded adjusting seat 105. The elastic rubber extrusion block 500 not only can limit the threaded rod 106, but also can deform when the staff pulls the threaded rod 106 outward, so as not to form a hard limit, facilitating the staff to disassemble the threaded rod 106 from the inside of the threaded adjusting seat 105.

[0036] As shown in Figure 8 The inside of the sleeve ring 101 is fixedly connected with a plurality of universal balls 600, which are used to assist the movement of the sleeve ring 101 on the outer rubber layer 109.

[0037] Specifically, in use, when the sleeve ring 101 moves outside the support ring 100, the outer rubber layer 109 can increase the friction between the sleeve ring 101, which can cause the sleeve ring 101 to be difficult to move outside the outer rubber layer 109 due to the constant friction between the sleeve ring 101 and the outer rubber layer 109. However, the universal ball 600 can assist the movement of the sleeve ring 101 outside the outer rubber layer 109, and the universal ball 600 can bear the contact surface between the sleeve ring 101 and the outer rubber layer 109 to reduce the friction therebetween, thereby assisting the movement of the sleeve ring 101 outside the outer rubber layer 109.

[0038] The technical solutions in the embodiments of the present application have at least the following technical effects or advantages: compared with the prior art, in the embodiments, the support ring 100 in the form of a round rod can enable the rotating sleeve ring 101 to be directed towards the inside of the human cavity during adjustment of the direction of the expansion hook 107, so that the threaded rod 106 and the expansion hook 107 can be deeply inserted into the oral cavity to form outward pulling support, and the positioning bolt 102 cooperating with the outer rubber layer 109 outside the support ring 100 can enable the sleeve ring 101 to have a stepless adjustment effect outside the support ring 100, so that medical personnel can arbitrarily adjust as needed without additional positioning, thereby simplifying the use method and improving the adjustment efficiency of medical personnel.

[0039] Embodiment two, considering that medical personnel not only need to adjust the position of the expansion hook 107 towards the inside of the human cavity, but also need to adjust the rotation angle with the moving sleeve 103 as the center point according to the patient's condition, so that the expansion hook 107 can be rotated and adjusted to the appropriate position when the sleeve ring 101 moves outside the support ring 100, but in the adjustment with the moving sleeve 103 as the adjustment center, the existing positioning structure is mostly relatively complicated, and the combination of gears or lead screws and other components is used to form a rotating positioning effect, which makes these structures relatively precise, and once a certain part is damaged, it cannot be used, and dirt accumulation is easy to occur inside these precise parts under long-term use, which is difficult to clean. To solve the above technical problems, the application proposes a plug-in structure to solve the above technical problems, specifically:

[0040] As shown in Figures 2-4 The plug-in structure includes a rotating seat 104, which is slidingly connected to the inside of the moving sleeve 103, and the outside of the rotating seat 104 is fixedly connected with a positioning cutting plate 202. The support ring 100 is integrally formed with a positioning surface 200 on the outside, and the outside of the positioning surface 200 is integrally formed with a plurality of positioning metal rods 201, and the positioning cutting plate 202 is plugged into the inside of the plurality of positioning metal rods 201.

[0041] Specifically, during use, the staff can pull the rotating seat 104 outward, so that the rotating seat 104 moves to the outlet position of the moving sleeve 103, and when the rotating seat 104 gradually moves out of the inside of the moving sleeve 103, the positioning cutting plate 202 will be separated from the plurality of positioning metal rods 201, and when the positioning cutting plate 202 is separated from the positioning metal rods 201, the hand-held threaded adjusting seat 105 is used and the threaded rod 106 is rotated around the rotating seat 104, and the rotation direction is as shown by the arrow direction in the middle, and after rotating to a certain angle, the rotating seat 104 is pushed into the inside of the moving sleeve 103, and after the rotating seat 104 moves into the inside of the moving sleeve 103, the positioning cutting plate 202 will enter the inside of the moving sleeve 103 together with the rotating seat 104, and the positioning cutting plate 202 will be in contact with the plurality of positioning metal rods 201, and as the positioning cutting plate 202 gradually penetrates, the positioning cutting plate 202 is inserted between the plurality of positioning metal rods 201, and the plurality of positioning metal rods 201 form a limit to the outside of the positioning cutting plate 202, and in the case that the plurality of positioning metal rods 201 limit the positioning cutting plate 202, it can be ensured that the rotating seat 104 drives the threaded adjusting seat 105 to tilt at a specified angle, and the phenomenon of random rotation does not occur, and the overall positioning structure is not complex, which is convenient for medical staff to adjust as needed. Figure 2 Specifically, during use, the staff can pull the rotating seat 104 outward, so that the rotating seat 104 moves to the outlet position of the moving sleeve 103, and when the rotating seat 104 gradually moves out of the inside of the moving sleeve 103, the positioning cutting plate 202 will be separated from the plurality of positioning metal rods 201, and when the positioning cutting plate 202 is separated from the positioning metal rods 201, the hand-held threaded adjusting seat 105 is used and the threaded rod 106 is rotated around the rotating seat 104, and the rotation direction is as shown by the arrow direction in the middle, and after rotating to a certain angle, the rotating seat 104 is pushed into the inside of the moving sleeve 103, and after the rotating seat 104 moves into the inside of the moving sleeve 103, the positioning cutting plate 202 will enter the inside of the moving sleeve 103 together with the rotating seat 104, and the positioning cutting plate 202 will be in contact with the plurality of positioning metal rods 201, and as the positioning cutting plate 202 gradually penetrates, the positioning cutting plate 202 is inserted between the plurality of positioning metal rods 201, and the plurality of positioning metal rods 201 form a limit to the outside of the positioning cutting plate 202, and in the case that the plurality of positioning metal rods 201 limit the positioning cutting plate 202, it can be ensured that the rotating seat 104 drives the threaded adjusting seat 105 to tilt at a specified angle, and the phenomenon of random rotation does not occur, and the overall positioning structure is not complex, which is convenient for medical staff to adjust as needed.

[0042] As shown in Figure 5 The inside of the support ring 100 is fixedly connected with a magnetic plate 400.

[0043] Specifically, through the arrangement of the magnetic plate 400, when the positioning cutting plate 202 is inserted into the gap between the plurality of positioning metal rods 201, the magnetic plate 400 can be used to adsorb the positioning cutting plate 202, so that the positioning cutting plate 202 can be attached to the outer wall surface of the support ring 100, and the positioning cutting plate 202 can be prevented from moving randomly inside the moving sleeve 103.

[0044] As shown in Figure 8 The inner wall surface of the moving sleeve 103 and the outer wall surface of the rotating seat 104 are fixedly connected with annular blocking blocks 700.

[0045] Specifically, during use, the annular blocking blocks 700 fixedly connected to the inner wall surface of the moving sleeve 103 and the outer wall surface of the rotating seat 104 can prevent the rotating seat 104 from being pulled out of the inside of the moving sleeve 103 when the rotating seat 104 moves inside the moving sleeve 103, thereby reducing the phenomenon that the rotating seat 104 is easily pulled out of the inside of the moving sleeve 103 after being subjected to force.

[0046] The technical solutions in the embodiments of the present application have at least the following technical effects or advantages: compared with the first embodiment, in the present embodiment, the positioning cutting plate 202 is inserted between the plurality of positioning metal rods 201 by the rotating seat 104, which can limit the screw adjusting seat 105 and the screw rod 106, and the rotation angle of the screw adjusting seat 105 and the screw rod 106 can be adjusted at will according to the needs, only the positioning cutting plate 202 needs to be inserted into the gap of different positioning metal rods 201, and the overall positioning limiting effect does not need complex mechanical parts, and the rotation angle of the screw adjusting seat 105 and the screw rod 106 can also be adjusted at will, and the overall adjustment and use of medical staff are more convenient.

[0047] In the third embodiment, when adjusting the rotation angle of the screw adjusting seat 105 and the screw rod 106, the positioning cutting plate 202 is inserted into the gap of the plurality of positioning metal rods 201, and when the positioning cutting plate 202 is inserted into the gap of the positioning metal rod 201, there is always a gap between the positioning metal rod 201 and the positioning cutting plate 202, which makes the positioning cutting plate 202 and the positioning metal rod 201 always in a relatively loose state, and when it is relatively loose, the positioning cutting plate 202 and the positioning metal rod 201 are prone to continuous shaking, which is not stable during use. To solve the above technical problems, the present application proposes the following technical solutions, specifically:

[0048] As shown in Figure 5 The outer part of the positioning metal rod 201 is integrally formed with an outer layer of high-elastic rubber extrusion seat 300, and the spacing between the plurality of outer layer high-elastic rubber extrusion seats 300 is greater than 0.2mm.

[0049] Specifically, in use, the outer layer of high-elastic rubber extrusion seat 300 outside the positioning metal rod 201 can fill the gap between the plurality of positioning metal rods 201, and in the case of filling the gap between the positioning metal rods 201 with the outer layer of high-elastic rubber extrusion seat 300, the positioning cutting plate 202 can be inserted into the plurality of outer layer of high-elastic rubber extrusion seat 300, and when the positioning cutting plate 202 is inserted between the plurality of positioning metal rods 201, the outer layer of high-elastic rubber extrusion seat 300 outside the positioning metal rod 201 is extruded, causing the outer layer of high-elastic rubber extrusion seat 300 to deform. In the case of deformation of the outer layer of high-elastic rubber extrusion seat 300, on the one hand, it can fit the positioning cutting plate 202 to reduce the looseness between the positioning cutting plate 202 and the positioning metal rod 201, and reduce the instability of the positioning cutting plate 202 in the gap between the positioning metal rod 201, on the other hand, it can also increase the friction between the positioning metal rod 201 and the positioning cutting plate 202, thereby further reducing the phenomenon that the positioning cutting plate 202 easily separates from the positioning metal rod 201 due to excessive force on the threaded rod 106, and ensuring that the positioning cutting plate 202 is inserted into the corresponding positioning cutting plate 202 gap when the spacing is at least greater than 0.2mm.

[0050] Considering that the plurality of positioning metal rods 201 are filled with gaps by the outer layer of high-elastic rubber extrusion seat 300, smaller gaps can cause medical staff to be unable to accurately insert the positioning cutting plate 202 into the gap between the plurality of outer layer of high-elastic rubber extrusion seat 300, therefore Figure 6 as shown, the outer layer of high-elastic rubber extrusion seat 300 is tapered, with the tapered tip facing the rotating seat 104, and the tapered outer layer of high-elastic rubber extrusion seat 300 is integrally formed with a parallel extrusion surface 301 near the outer wall surface of the positioning surface 200.

[0051] Specifically, in use, when the staff pushes the rotating seat 104 and the positioning cutting plate 202 to be inserted into the plurality of positioning metal rods 201, the tapered surface of the outer layer of high-elastic rubber extrusion seat 300 will guide the positioning cutting plate 202 to the specified position where it can be inserted, and after guiding the positioning cutting plate 202 to the side wall surface close to the support ring 100, the parallel extrusion surface 301 at the bottom of the outer layer of high-elastic rubber extrusion seat 300 is a plurality of parallel surfaces, and the existence of the plurality of parallel surfaces will form a planar abutting state with the positioning cutting plate 202, thereby forming an abutting limiting effect on the outer wall surface of the positioning cutting plate 202, and overall forming an overall effect of upward guidance and downward limiting.

[0052] as shown Figure 8As shown, the outer part of the positioning cutting plate 202 is integrally formed with a plurality of reverse ratchet plates 302, which are used to increase the friction between the outer layer high-elastic rubber extrusion seat 300 when the positioning cutting plate 202 is inserted into the inside of the positioning metal rod 201.

[0053] Specifically, during use, when the staff inserts the positioning cutting plate 202 into the gap between the plurality of positioning metal rods 201, the reverse ratchet plates 302 located on the outer part of the positioning cutting plate 202 increase the friction between the parallel extrusion surfaces 301, avoiding the situation that the expansion hook 107 pulls the positioning cutting plate 202 to move out of the gap between the plurality of positioning metal rods 201 when the patient bites the expansion hook 107 with force.

[0054] As shown, Figure 6 The outer wall surface of the parallel extrusion surface 301 is integrally formed with a plurality of magnetic attraction blocks 303. Through the arrangement of the magnetic attraction blocks 303, the positioning cutting plate 202 can be adsorbed by the magnetic attraction plate 400 when it is attached to the outside of the parallel extrusion surface 301, ensuring the stability of the attachment of the positioning cutting plate 202 to the outside of the parallel extrusion surface 301.

[0055] As shown, Figure 7 The present application also proposes that the magnetic attraction plate 400 can be wound with a coil, and a battery is used for external conduction, so that the magnetic attraction plate 400 forms an electromagnet, and a barb-shaped magnetic powder capsule is arranged outside the outer layer high-elastic rubber extrusion seat 300. When the positioning cutting plate 202 is inserted into the plurality of positioning metal rods 201, the barb-shaped magnetic powder capsule will form a buckling with the reverse ratchet plate 302. After buckling, the electromagnet is started again to form an electromagnet adsorbing the magnetic powder capsule, which strengthens the buckling state between the magnetic powder capsule and the reverse ratchet plate 302, ensuring the stability of the insertion of the positioning cutting plate 202.

[0056] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages: compared with embodiment two, in the present embodiment, the plurality of positioning metal rods 201 are narrowed in distance by the soft outer layer high-elastic rubber extrusion seat 300, so that the positioning cutting plate 202 is extruded when it is inserted into the plurality of positioning metal rods 201, avoiding the instability phenomenon caused by the excessive looseness of the positioning cutting plate 202 between the positioning metal rods 201. When the plurality of outer layer high-elastic rubber extrusion seats 300 extrude the positioning cutting plate 202, the friction between the positioning metal rod 201 and the positioning cutting plate 202 can be increased, avoiding the separation phenomenon between the positioning cutting plate 202 and the positioning metal rod 201. The tapered outer layer high-elastic rubber extrusion seat 300 and the parallel extrusion surface 301 can enable medical staff to quickly insert the positioning cutting plate 202 into the gap between the plurality of positioning metal rods 201, improving the use efficiency of the user.

[0057] The above merely provides the preferred embodiment of the present application, and is not intended to limit the present application. The present application can have various changes and modifications for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An oral detection expansion device comprising a support ring (100), characterized in that: The support ring (100) is an open annular shape. A sleeve ring (101) is sleeved on the outside of the support ring (100). A movable sleeve (103) is connected to the outside of the sleeve ring (101). A threaded adjusting seat (105) is installed inside the movable sleeve (103) through a plug-in structure. A threaded rod (106) is threadedly connected inside the threaded adjusting seat (105). An expansion hook (107) is rotatably connected to the bottom of the threaded rod (106). The support ring (100) has an integrally formed outer rubber layer (109) on its outside. The sleeve ring (101) has a threaded hole on its outside. The threaded hole is threaded with a positioning bolt (102). The positioning bolt (102) is used to pass through the threaded hole and fit and squeeze the outer rubber layer (109) to fix and limit the sleeve ring (101). The plug-in structure includes a rotating seat (104), which is slidably connected to the inside of the movable sleeve (103). A positioning cutter (202) is fixedly connected to the outside of the rotating seat (104). A positioning surface (200) is integrally formed on the outside of the support ring (100). A plurality of positioning metal rods (201) are integrally formed on the outside of the positioning surface (200). The positioning cutter (202) is plugged into the inside of the plurality of positioning metal rods (201). When in use, hold the threaded adjustment seat (105) and rotate the threaded adjustment seat (105) and the threaded rod (106) with the rotating seat (104) as the center point. When the rotation reaches a certain angle, push the rotating seat (104) into the interior of the moving sleeve (103). The positioning cutter (202) will enter the interior of the moving sleeve (103) along with the rotating seat (104). The positioning cutter (202) will contact multiple positioning metal rods (201). As the positioning cutter (202) gradually goes deeper, it will be inserted between multiple positioning metal rods (201). The multiple positioning metal rods (201) will limit the exterior of the positioning cutter (202).

2. An oral detection expansion device according to claim 1, wherein: The positioning metal rod (201) is integrally formed with an outer high-elastic rubber extrusion seat (300), and the distance between multiple outer high-elastic rubber extrusion seats (300) is greater than 0.2mm.

3. An oral detection expansion device according to claim 2, wherein: The outer high-elastic rubber extrusion seat (300) is conical, with the tip of the cone facing the rotating seat (104). The outer wall surface of the conical outer high-elastic rubber extrusion seat (300) near the positioning surface (200) is integrally formed with a parallel extrusion surface (301).

4. An oral detection expansion device according to claim 1, wherein: The threaded adjustment seat (105) is externally fixedly connected to two rubber extrusion blocks (500), and a snap-fit ​​gap is formed between the two rubber extrusion blocks (500). The side of the rubber extrusion block (500) near the threaded rod (106) is attached to the outer wall of the threaded rod (106), and a knob (108) is fixedly connected to the top of the threaded rod (106).

5. An oral detection expansion device according to claim 1, wherein: The sleeve (101) is internally fixedly connected with a plurality of universal balls (600), which are used to assist the movement of the sleeve (101) on the outer rubber layer (109).

6. An oral detection expansion device according to claim 3, wherein: Both the inner wall of the movable sleeve (103) and the outer wall of the rotating seat (104) are fixedly connected with annular blocking blocks (700).

7. An oral detection expansion device as defined in claim 1, wherein: A magnetic suction plate (400) is fixedly connected inside the support ring (100).

8. An oral detection expansion device according to claim 6, wherein: The positioning cutter (202) has multiple backward ratchet plates (302) integrally formed on its exterior. The backward ratchet plates (302) are used to increase the friction between the positioning cutter (202) and the outer high-elastic rubber extrusion seat (300) when the positioning cutter (202) is inserted into the positioning metal rod (201).

9. The oral cavity examination expansion device according to claim 8, characterized in that: The outer wall of the parallel extrusion surface (301) is integrally formed with multiple magnetic blocks (303).

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