Composite oral cavity expansion device assembling structure

Abstract

The utility model relates to the technical field of oral cavity expansion devices, in particular to an oral cavity expansion device assembling structure made of composite materials. A composite oral cavity expansion device assembling structure comprises a base frame, an extraction support and a distraction device, the extraction support and the distraction device are arranged on the base frame, and the composite oral cavity expansion device assembling structure is characterized in that the base frame is composed of a sliding rod piece, a screw rod piece and a pair of plastic parts, the sliding rod piece and the screw rod piece are arranged in parallel, and the plastic parts are arranged at the two ends of the screw rod piece respectively; the two plastic parts are in threaded connection with the screw part and are in sliding connection with the sliding rod part, the driving block is fixed to the middle of the screw part so that a gap can be formed between the two plastic parts, the extracting support is composed of an upper support and a lower support which clamp the base frame from the gap, and a key hole is formed in the driving block in the radial direction. And the distractor comprises a connecting piece clamped on the plastic piece, a band ring sleeved on the teeth and a connecting rod connected between the connecting piece and the band ring.

Description

Technical Field

[0001] This utility model relates to the field of oral retractor technology, specifically a composite material oral retractor assembly structure. Background Technology

[0002] In the field of orthodontics, dental expanders are key instruments for correcting problems such as narrow dental arches. Existing dental expanders have several shortcomings, such as complex manufacturing processes that hinder efficient mass production; cumbersome assembly processes that increase the workload of medical staff; and inconvenient customized fitting for different patients' tooth types, affecting treatment efficiency and effectiveness. Utility Model Content

[0003] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0004] A composite material oral retractor assembly structure includes a base frame and an extraction bracket and a tensioner mounted on the base frame. The base frame consists of a parallel sliding rod, a screw rod, and a pair of plastic parts respectively located at both ends of the screw rod. The two ends of the screw rod are respectively provided with threads in opposite directions. The two plastic parts are respectively threaded to the screw rod and slidably connected to the sliding rod. A fixed drive block in the middle of the screw rod creates a gap between the two plastic parts. The extraction bracket consists of an upper bracket and a lower bracket that clamp the base frame from the gap. The drive block is provided with a radially arranged keyhole. The tensioner includes a connector that snaps onto the plastic parts, a band loop that fits onto the teeth, and a connecting rod connecting the connector and the band loop.

[0005] Furthermore, the lower support is provided with a groove for accommodating the screw and the slide rod, and the top of the groove is provided with buckles on both sides. The upper support is provided with a pressure block that cooperates with the groove to clamp the screw and the slide rod, and the pressure block is provided with buckle grooves on both sides corresponding to the buckles.

[0006] Furthermore, the top of the upper support is provided with a clamping protrusion, and the connection between the clamping protrusion and the upper support is provided with concave clamping parts on both sides.

[0007] Furthermore, the bottom of the upper bracket is equipped with a positioning pin that can be inserted into a keyhole.

[0008] Furthermore, the connector is a steel sheet that wraps around the plastic part, and the plastic part has slots on both sides that engage with the connector.

[0009] Furthermore, directional indicator marks are provided on both sides of the plastic part.

[0010] Furthermore, the middle part of the slide bar is provided with an integral positioning block, and the positioning block is provided with a positioning groove that is engaged with the drive block.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: the plastic parts on the base frame can be mass-produced efficiently by injection molding or 3D printing. In the process of customizing the expander, the base frame can be easily removed and placed by extracting the support. After the tensioner is customized and installed on the base frame according to the patient's tooth shape, the extracting support can be removed, and then the assembled expander can be installed in the patient's mouth, which is convenient to operate.

[0012] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the base frame in this utility model.

[0016] Figure 3 This is a schematic diagram of the structure for extracting the support in this utility model. Detailed Implementation

[0017] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] Please see Figures 1-3A composite material oral retractor assembly structure includes a base frame 1 and an extraction bracket 2 and a tensioner 3 mounted on the base frame 1. The base frame 1 consists of a parallel sliding rod 11, a screw rod 12, and a pair of plastic parts 13 respectively located at both ends of the screw rod 12. The two ends of the screw rod 12 are respectively provided with threads in opposite directions. The two plastic parts 13 are respectively threaded to the screw rod 12 and slidably connected to the sliding rod 11. A driving block 121 is fixed in the middle of the screw rod 12 to form a gap between the two plastic parts 13. The extraction bracket 2 consists of an upper bracket 21 and a lower bracket 22 that clamp the base frame 1 from the gap. The driving block 121 is provided with a radially arranged keyhole 122. The tensioner 3 includes a connector 31 that is snapped onto the plastic parts 13, a band ring 32 that is sleeved on the teeth, and a connecting rod 33 that connects the connector 31 and the band ring 32. The plastic parts 13 on the base frame 1 can be mass-produced efficiently using injection molding or 3D printing. During the customization of the expander, the base frame 1 can be easily removed and placed using the extraction bracket 2. After customizing and installing the tensioner 3 on the base frame 1 according to the patient's tooth shape, the extraction bracket 2 can be removed, and the assembled expander can then be installed in the patient's mouth, making the operation convenient. After the expander is installed, a force-applying key is inserted into the keyhole 122 of the drive block 121 to pry the screw 12 and rotate it, thereby moving the base frame 1 and the tensioner 3 to achieve force-applying expansion.

[0019] Furthermore, the lower support 22 is provided with a groove 221 to accommodate the screw 12 and the sliding rod 11. Buckles 222 are provided on both sides of the top of the groove 221. The upper support 21 is provided with a pressure block 211 that cooperates with the groove 221 to clamp the screw 12 and the sliding rod 11. The pressure block 211 has corresponding slots 212 on both sides corresponding to the buckles 222. The buckles 222 on the extraction support 2 are positioned on both sides of the top of the groove 221 of the lower support 22, corresponding to the slots 212 on both sides of the pressure block 211 of the upper support 21. When installing the extraction bracket 2, align the groove 221 of the lower bracket 22 with the screw 12 and sliding rod 11 of the base frame 1, so that the screw 12 and sliding rod 11 are accommodated in the groove 221. Then, engage the pressure block 211 of the upper bracket 21 with the groove 221 of the lower bracket 22, and the buckle 222 can be easily engaged in the buckle groove 212, thereby firmly clamping the upper bracket 21 and lower bracket 22 onto the base frame 1, completing the quick installation. When disassembling, simply apply a certain external force to the upper bracket 21 to disengage the buckle 222 from the buckle groove 212, and the upper and lower brackets 22 can be easily separated, allowing the extraction bracket 2 to be removed from the base frame 1. This design eliminates the need for complex tools or cumbersome operations, greatly simplifying the connection and separation process between the extraction bracket 2 and the base frame 1, significantly improving the ease of assembly and disassembly of the dilator, saving medical staff's operating time, reducing their workload, and facilitating component adjustment and replacement during the customization process of the dilator, fully demonstrating the convenience and efficiency of this structure in practical applications.

[0020] Furthermore, the top of the upper support 21 is provided with a clamping protrusion 213, and the connection between the clamping protrusion 213 and the upper support 21 is provided with concave clamping parts 214 on both sides, which makes it convenient for medical staff to use tweezers and other tools to clamp and operate the extraction support 2, significantly improving the ease of operation during the assembly process.

[0021] Furthermore, the bottom end of the upper bracket 21 is provided with a positioning pin 215 for insertion into the key hole 122.

[0022] Furthermore, the connector 31 is a steel sheet that wraps around the plastic part 13, and the plastic part 13 has slots 131 on both sides, which engage with the connector 31. This engaging method ensures a firm and reliable connection between the tensioner 3 and the base frame 1, stably transmitting tension and guaranteeing the effectiveness of the arch dilation treatment.

[0023] Furthermore, directional indicator marks 132 are provided on both sides of the plastic part 13. The directional indicator marks 132 facilitate medical personnel to quickly and accurately determine the direction of the plastic part 13 during assembly and use, avoiding the impact on the normal use and treatment effect of the dilator due to incorrect direction.

[0024] Furthermore, the middle part of the sliding rod 11 is provided with an integral positioning block 111, and the positioning block is provided with a positioning groove 112 that engages with the driving block 121. The cooperation between the positioning block 111 and the positioning groove 112 ensures a stable connection between the sliding rod 11 and the driving block 121, preventing the sliding rod from shifting or loosening due to uneven force during use, and ensuring the overall stability of the base frame structure.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A composite material oral retractor assembly structure, comprising a base frame and an extraction support and a tensioner mounted on the base frame, characterized in that, The base frame consists of a parallel sliding rod, a screw rod, and a pair of plastic parts located at both ends of the screw rod. The two ends of the screw rod are respectively provided with threads in opposite directions. The two plastic parts are threadedly connected to the screw rod and slidably connected to the sliding rod. A drive block is fixed in the middle of the screw rod to form a gap between the two plastic parts. The extraction bracket consists of an upper bracket and a lower bracket that clamp the base frame from the gap. The drive block is provided with a radially arranged key hole. The tensioner includes a connector that is snapped onto the plastic parts, a belt ring that is sleeved on the teeth, and a connecting rod connecting the connector and the belt ring.

2. The composite material oral retractor assembly structure according to claim 1, characterized in that, The lower support has a groove for accommodating the screw and slide rod, and buckles are provided on both sides of the top of the groove. The upper support has a pressure block that cooperates with the groove to clamp the screw and slide rod, and buckle grooves corresponding to the buckles are provided on both sides of the pressure block.

3. The composite material oral retractor assembly structure according to claim 1 or 2, characterized in that, The top of the upper support is provided with a clamping protrusion, and the connection between the clamping protrusion and the upper support is provided with recessed clamping parts on both sides.

4. The composite material oral retractor assembly structure according to claim 1 or 2, characterized in that, The bottom of the upper bracket is equipped with a positioning pin that can be inserted into a keyhole.

5. The composite material oral retractor assembly structure according to claim 1, characterized in that, The connector is a steel sheet that wraps around the plastic part. The plastic part has slots on both sides and engages with the connector through these slots.

6. The composite material oral retractor assembly structure according to claim 1, characterized in that, The plastic parts have directional indicator marks on both sides.

7. The composite material oral retractor assembly structure according to claim 1, characterized in that, The middle part of the slide bar is provided with an integral positioning block, and the positioning block is provided with a positioning groove that is engaged with the drive block.

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