Dental tray

Abstract

The utility model relates to the technical field of dental medical treatment, and discloses a dental tray which comprises a rigid plastic tray, a demolding mechanism and a clamping mechanism. According to the dental tray, a slidable and detachable mechanism is designed so that the bottom plate can be separated from the rigid plastic tray, impression materials solidified on the bottom plate can be separated from the tray by rotating the threaded rod, and the process comprises the steps that when the threaded rod rotates, the guide blocks move along the guide rails; the bottom plate is pushed to gradually slide out of the mounting groove formed in the inner wall of the tray, so that materials subjected to impression are taken out together, a threaded rod locking mechanism and the guide supporting effect of the mounting groove are designed, the situation that the materials displace in the impression process is effectively prevented, in addition, the tray is further specially provided with a clamping mechanism, and the clamping mechanism is convenient to use. According to the tray, the guide blocks and the bottom plate can be quickly disassembled and assembled, so that the bottom plate is replaceable, smooth demolding is ensured, and the practicability and convenience of the tray are improved.

Description

Technical Field

[0001] This application relates to the field of dental medical technology, specifically to a dental tray. Background Technology

[0002] In dental treatment, when taking impressions during the fabrication of restorations, silicone impression materials, alginate impression materials, etc., are typically used. To insert and retain the impression material in the mouth, an impression tray is used. That is, the impression material is placed on the impression tray and inserted into the patient's mouth. By pressing the impression material into the patient's mouth, the shape of the oral cavity is transferred to the impression material. After the impression material has cured, the impression material, whose shape has been transferred to the impression tray in the oral cavity, is removed from the mouth as a single unit while being retained.

[0003] An existing patent (publication number: CN221083849U) discloses a dental impression tray, including a tray body made of metal and a handle. This utility model has a reasonable structural design. Because the smaller tray body is snapped together with the larger tray body, it can be easily switched between a larger tray body with small holes (i.e., material overflow holes) and a smaller tray body without small holes. This effectively meets both normal use (where there are no high requirements for the fixing force between the tray and the impression material) and special situations (where there are high requirements for the fixing force between the tray and the impression material). Therefore, medical staff only need to carry the dental impression tray (i.e., the whole unit) connected by snaps into the operating room, which is very convenient and avoids forgetting to take the tray.

[0004] The aforementioned prior art does not allow for easy separation of the formed impression material from the tray, and cannot guarantee that the removed impression material has high integrity and precision. In order to ensure smooth demolding, a dental tray is proposed. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a dental tray that enables rapid separation of the impression material from the tray, facilitating the complete removal of the formed impression material.

[0006] To achieve the above objectives, this application provides the following technical solution: a dental tray, comprising a rigid plastic tray, a demolding mechanism, and a snap-fit ​​mechanism. The demolding mechanism includes a guide rail fixedly connected to the inner bottom wall of the rigid plastic tray and a threaded rod rotatably sleeved on the inner wall of the guide rail. A guide block is slidably sleeved on the inner wall of the guide rail. The inner wall of the guide block is threadedly connected to the outer surface of the threaded rod. A base plate is installed inside the guide block through the snap-fit ​​mechanism. An installation groove is formed on the inner side wall of the rigid plastic tray, and the inner contour of the installation groove corresponds to the outer contour of the base plate.

[0007] The above solution features a sliding and detachable bottom mechanism. The molding material fixed on the base plate can be separated from the rigid plastic tray by rotating the threaded rod. When the threaded rod rotates, the guide block moves along the guide rail, allowing the base plate to gradually move out of the mounting groove on the inner wall of the rigid plastic tray. This allows the molded material to be removed together, ensuring smooth demolding. At the same time, the locking effect of the threaded rod and the guiding support effect of the mounting groove effectively prevent displacement during the molding process. Finally, the snap-fit ​​mechanism allows for quick assembly and disassembly between the guide block and the base plate, making the base plate replaceable and more practical.

[0008] Furthermore, two guide rods are fixedly connected to the inner wall of the guide rail, and the two sides of the guide block are slidably sleeved on the outer surfaces of the two guide rods respectively.

[0009] The above solution allows the guide block to move more stably within the inner wall of the guide rail by setting a guide rod, thus facilitating the removal of the base plate from the mounting slot for quick demolding.

[0010] Furthermore, sealing gaskets are fixedly connected to both the upper and lower sides of the base plate, and the sealing gaskets are adapted to the inner wall of the mounting groove.

[0011] The above solution, by setting a sealing gasket, can prevent leakage or seepage of the molding material, and at the same time facilitate the overall separation during demolding.

[0012] Furthermore, auxiliary support layers are fixedly connected to both sides of the inner bottom wall of the rigid plastic tray.

[0013] The above solution provides a certain degree of elastic support to the base plate by setting an auxiliary support layer, making the molding process more stable.

[0014] Furthermore, the snap-fit ​​mechanism includes two slots formed on the upper surface of the guide block. Each slot has a slidable limiting block installed on its inner wall. The ends of the two limiting blocks that are close to each other are both blunted, and the ends of the two limiting blocks that are far from each other are both fixedly connected to a connecting piece.

[0015] The above scheme allows other components to be easily inserted into the guide block by setting slots, and limits the components inserted into the slots by setting limit blocks.

[0016] Furthermore, a telescopic spring is fixedly connected to the outer surface of each connecting piece, and the ends of the two telescopic springs that are close to each other are fixedly connected to the two sides of the outer surface of the guide block, and the two telescopic springs are respectively sleeved on the outside of the two limiting blocks. A handle is fixedly connected to the outer surface of each connecting piece.

[0017] The above solution allows the limit block to be reset by setting a telescopic spring. When the limit block moves outward, the telescopic spring will be stretched. When there is no external force affecting the limit block, the limit block can be reset by the elastic force generated by the stretching of the telescopic spring. The handle allows the staff to easily pull the limit block outward, facilitating the disassembly of the guide block and the base plate.

[0018] Furthermore, two insert blocks are fixedly connected to the bottom surface of the base plate. The bottom ends of the two insert blocks are made with a passivation treatment similar to that of one end of the limiting block. Limiting grooves are opened on the side of the two insert blocks that are far apart from each other.

[0019] The above scheme allows the insertion block and the limiting slot to be set so that after the insertion block is inserted into the slot, the limiting block enters the limiting slot to limit the insertion block.

[0020] Furthermore, a handle is fixedly connected to the outer surface of the rigid plastic tray. Two symmetrical circular holes are opened on one side of the handle. One end of the threaded rod passes through the rigid plastic tray and the handle and is fixedly connected to a knob. The outer surface of the threaded rod is rotatably connected to the inner wall of the rigid plastic tray and the handle, respectively.

[0021] The above design allows doctors to insert or remove rigid plastic trays more stably by using a handle and a round hole. The knob increases the contact area at the end of the threaded rod shaft, making it easier to rotate the threaded rod.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] This dental tray features a sliding and detachable mechanism to separate the base plate from the rigid plastic tray. The impression material fixed on the base plate can be separated from the tray by rotating a threaded rod. This process involves a guide block moving along a guide rail as the threaded rod rotates, thereby pushing the base plate gradually out of the mounting groove on the inner wall of the tray, allowing the impression material to be removed along with it. The threaded rod locking mechanism and the guiding support effect of the mounting groove effectively prevent material displacement during the impression process. In addition, the tray is specially equipped with a snap-fit ​​mechanism to achieve quick assembly and disassembly between the guide block and the base plate, making the base plate replaceable. This not only ensures smooth demolding but also improves the practicality and convenience of the tray. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall first structure of this application;

[0025] Figure 2 This is a schematic diagram of the overall second structure of this application;

[0026] Figure 3 This is a partial structural diagram of the structure of this application;

[0027] Figure 4 This is a schematic diagram of the bottom surface structure of the base plate of the structure in this application.

[0028] In the picture:

[0029] 1. Rigid plastic tray; 2. Demolding mechanism; 201. Guide rail; 202. Threaded rod; 203. Guide block; 204. Base plate; 205. Guide rod; 206. Mounting groove; 207. Sealing gasket; 208. Auxiliary support layer; 209. Knob; 3. Snap-fit ​​mechanism; 301. Slot; 302. Limiting block; 303. Connecting piece; 304. Telescopic spring; 305. Handle; 306. Insert block; 307. Limiting groove; 4. Grip; 5. Round hole. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] Please see Figure 1 , Figure 2 and Figure 3 A dental tray in this embodiment includes a rigid plastic tray 1, a demolding mechanism 2, and a snap-fit ​​mechanism 3. The demolding mechanism 2 includes a guide rail 201 fixedly connected to the inner bottom wall of the rigid plastic tray 1 and a threaded rod 202 rotatably sleeved on the inner wall of the guide rail 201. A guide block 203 is slidably sleeved on the inner wall of the guide rail 201. The inner wall of the guide block 203 is threadedly connected to the outer surface of the threaded rod 202. A base plate 204 is installed inside the guide block 203 through the snap-fit ​​mechanism 3. When the threaded rod 202 rotates, the guide block 203 can move in the inner wall of the guide rail 201, thereby driving the base plate 204 to move. By moving the base plate 204, the impression material formed on the base plate 204 can be separated from the rigid plastic tray 1, making it easier to remove the complete impression material.

[0032] Please see Figure 1 , Figure 2 and Figure 3The rigid plastic tray 1 has an installation groove 206 on its inner side wall. The inner contour of the installation groove 206 corresponds to the outer contour of the base plate 204. By setting the installation groove 206, the base plate 204 can be inserted into it, which can prevent the base plate 204 from shifting during the molding process and optimize the molding quality. Two guide rods 205 are fixedly connected to the inner wall of the guide rail 201. The two sides of the guide block 203 are slidably sleeved on the outer surface of the two guide rods 205. By setting the guide rods 205, the guide block 203 can move more stably in the inner wall of the guide rail 201, which facilitates the removal of the base plate 204 from the installation groove 206 for quick demolding. Sealing gaskets 207 are fixedly connected to both the upper and lower sides of the base plate 204. The sealing gaskets 207 are adapted to the inner wall of the installation groove 206. By setting the sealing gaskets 207, the molding material can be prevented from leaking or seeping out, and the overall separation during demolding can be facilitated.

[0033] Please see Figure 2 , Figure 3 and Figure 4 The locking mechanism 3 includes two slots 301 formed on the upper surface of the guide block 203. Each slot 301 has a slidable limiting block 302 installed on its inner wall. The ends of the two limiting blocks 302 that are close to each other are blunted, and the ends of the two limiting blocks 302 that are far apart are fixedly connected to connecting pieces 303. The slots 301 facilitate the insertion of other components into the guide block 203, and the limiting blocks 302 facilitate the limiting of components inserted into the slots 301. Each connecting piece 303 has a telescopic spring 304 fixedly connected to its outer surface. The ends of the two telescopic springs 304 that are close to each other are respectively fixedly connected to the connecting piece 303. On both sides of the outer surface of the block 203, two telescopic springs 304 are respectively sleeved on the outside of the two limiting blocks 302. Each connecting piece 303 has a handle 305 fixedly connected to its outer surface. The limiting blocks 302 can be reset by setting the telescopic springs 304. When the limiting blocks 302 move outward, the telescopic springs 304 will be in a stretched state. When the limiting blocks 302 are not affected by external force, the limiting blocks 302 can be reset by the elastic force generated by the stretching of the telescopic springs 304. The handles 305 make it convenient for the staff to pull the limiting blocks 302 outward, which facilitates the disassembly of the guide block 203 and the base plate 204.

[0034] Please see Figure 2 , Figure 3 and Figure 4Two insert blocks 306 are fixedly connected to the bottom surface of the base plate 204. The bottom ends of the two insert blocks 306 are blunted similarly to one end of the limiting block 302. Limiting grooves 307 are provided on the opposite sides of the two insert blocks 306. By setting the insert blocks 306 and the limiting grooves 307, the insert blocks 306 can be inserted into the slots 301, and the limiting blocks 302 can enter the limiting grooves 307 to limit the insert blocks 306. It should be noted that when the base plate 204 needs to be removed from the guide block 203, the two handles 305 can be pulled outward to move the two limiting blocks 302 out of their respective limiting grooves 307, thereby releasing the limitation on the base plate 204. Then the base plate 204 can be removed from the guide block 203 for replacement.

[0035] Please see Figure 1 and Figure 2 The rigid plastic tray 1 has auxiliary support layers 208 fixedly connected to both sides of its inner bottom wall. By setting the auxiliary support layers 208, a certain elastic support can be provided to the base plate 204, making the impression process more stable and reducing the probability of the base plate 204 shifting during the impression process. The outer surface of the rigid plastic tray 1 is fixedly connected to a handle 4. Two symmetrical round holes 5 are opened on one side of the handle 4. One end of the threaded rod 202 passes through the rigid plastic tray 1 and the handle 4 and is fixedly connected to a knob 209. The outer surface of the threaded rod 202 is rotatably connected to the inner walls of the rigid plastic tray 1 and the handle 4 respectively. By setting the handle 4 and the round holes 5, it is easier for doctors to insert or remove the rigid plastic tray 1 more stably. By setting the knob 209, the contact area of ​​the rotating end of the threaded rod 202 can be increased, thereby facilitating the rotation of the threaded rod 202.

[0036] In this embodiment, a dental tray has a bottom designed as a sliding and detachable mechanism. The impression material fixed on the base plate 204 can be separated from the rigid plastic tray 1 by rotating the threaded rod 202. When the threaded rod 202 rotates, the guide block 203 moves along the guide rail 201, thereby allowing the base plate 204 to gradually move out of the mounting groove 206 opened in the inner wall of the rigid plastic tray 1. This allows the completed impression material to be removed together, ensuring smooth demolding. At the same time, the locking effect of the threaded rod 202 and the guiding support effect of the mounting groove 206 can effectively prevent displacement during the impression process. Finally, the snap-fit ​​mechanism 3 allows for quick assembly and disassembly between the guide block 203 and the base plate 204, making the base plate 204 replaceable and more practical.

[0037] The working principle of the above embodiment is as follows: Medical personnel first apply the impression material to the base plate 204, then rotate the knob 209 to rotate the threaded rod 202. The rotation of the threaded rod 202 causes the base plate 204 to move towards the interior of the rigid plastic tray 1. During this movement, the base plate 204 slides into the mounting groove 206. Once the base plate 204 is completely moved into the rigid plastic tray 1, the rotation of the knob 209 is stopped. Then, the device and impression material are placed into the user's oral cavity. The shape inside the user's oral cavity is transferred to the impression material. After the impression material has cured, the device is removed from the user's oral cavity. Then, the knob 209 is rotated in the opposite direction to move the base plate 204 outward, gradually separating it from the rigid plastic tray 1. This allows for removal along with the impression material, achieving a rapid demolding effect. Furthermore, the base plate 204... The base plate 204 is detachably connected to the guide block 203 via a snap-fit ​​mechanism 3, allowing for periodic replacement of the base plate 204 and making it more practical. When the base plate 204 is installed in the guide block 203, the two inserts 306 at the bottom of the base plate 204 can be fully inserted into the two slots 301 to achieve an automatic snap-fit ​​effect. During the insertion process, the bottom of the insert 306 will contact the passivated area on the upper surface of the limit block 302, causing the limit block 302 to be squeezed outward, so that the corresponding telescopic spring 304 is in a stretched state. When the insert 306 is fully inserted into the slot 301, the limit block 302 will be reset by the elastic force generated by the deformation of the corresponding telescopic spring 304. The limit block 302 can spring into the corresponding limit groove 307 to achieve the snap-fit ​​installation of the base plate 204.

[0038] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A dental tray, comprising a rigid plastic tray (1), a demolding mechanism (2), and a snap-fit ​​mechanism (3), characterized in that: The demolding mechanism (2) includes a guide rail (201) fixedly connected to the inner bottom wall of the rigid plastic tray (1) and a threaded rod (202) rotatably sleeved on the inner wall of the guide rail (201). A guide block (203) is slidably sleeved on the inner wall of the guide rail (201). The inner wall of the guide block (203) is threadedly connected to the outer surface of the threaded rod (202). A base plate (204) is installed inside the guide block (203) through a snap-fit ​​mechanism (3). An installation groove (206) is opened on the inner side wall of the rigid plastic tray (1). The inner contour of the installation groove (206) corresponds to the outer contour of the base plate (204).

2. A dental tray according to claim 1, characterized in that: The inner wall of the guide rail (201) is fixedly connected to two guide rods (205), and the two sides of the guide block (203) are respectively slidably sleeved on the outer surface of the two guide rods (205).

3. A dental tray according to claim 1, characterized in that: Sealing gaskets (207) are fixedly connected to both the upper and lower sides of the base plate (204), and the sealing gaskets (207) are adapted to the inner wall of the mounting groove (206).

4. A dental tray according to claim 1, characterized in that: The rigid plastic tray (1) has auxiliary support layers (208) fixedly connected to both sides of the inner bottom wall.

5. A dental tray according to claim 1, characterized in that: The snap-fit ​​mechanism (3) includes two slots (301) formed on the upper surface of the guide block (203). Each slot (301) has a sliding limit block (302) installed on its inner wall. The ends of the two limit blocks (302) that are close to each other are blunted, and the ends of the two limit blocks (302) that are far apart from each other are fixedly connected to a connecting piece (303).

6. A dental tray according to claim 5, characterized in that: Each of the connecting pieces (303) has a telescopic spring (304) fixedly connected to its outer surface. The ends of the two telescopic springs (304) that are close to each other are fixedly connected to the two sides of the outer surface of the guide block (203). The two telescopic springs (304) are respectively sleeved on the outside of the two limiting blocks (302). Each of the connecting pieces (303) has a handle (305) fixedly connected to its outer surface.

7. A dental tray according to claim 5, characterized in that: The bottom surface of the base plate (204) is fixedly connected to two inserts (306). The bottom ends of the two inserts (306) are both passivated similarly to one end of the limiting block (302). Limiting grooves (307) are opened on the side of the two inserts (306) that are far apart from each other.

8. A dental tray according to claim 1, characterized in that: The outer surface of the rigid plastic tray (1) is fixedly connected to a handle (4). Two symmetrical round holes (5) are opened on one side of the handle (4). One end of the threaded rod (202) passes through the rigid plastic tray (1) and the handle (4) and is fixedly connected to a knob (209). The outer surface of the threaded rod (202) is rotatably connected to the inner wall of the rigid plastic tray (1) and the handle (4) respectively.

Images