A height-adjustable threaded insert dental crown structure

Abstract

This utility model discloses a height-adjustable threaded insert sleeve structure, comprising: a sleeve base; a positioning sleeve, which is vertically mounted on the sleeve base, with a stud at the bottom of the insert screwed into a first threaded hole in the middle of the positioning sleeve, and the insert passing through a through hole in the sleeve base; and a fixing screw, which is screwed into a second threaded hole in the positioning sleeve and a third threaded hole in the sleeve base. The insert of this utility model is fitted onto the sleeve base via the positioning sleeve, allowing for fine-tuning of the insert's height. This solves the problem in existing injection molds where inserts cannot precisely reach the designed theoretical height due to machining / assembly / wear errors, resulting in product step differences and affecting molding quality and accuracy.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to a height-adjustable threaded insert toothed sleeve structure. Background Technology

[0002] To meet the requirements of injection molding, the internal molding structure of injection molds is designed using a "core insert" technique. This involves processing the core and the main mold body separately. This method makes it easier to machine each part properly. After processing, the core is then inserted into the main mold body, and the two are combined into one, ready for injection molding. However, existing injection mold core inserts, due to errors in processing, assembly, and wear, cannot perfectly achieve the theoretical design height, resulting in product variations that affect molding quality and precision. Utility Model Content

[0003] The purpose of this utility model is to provide a height-adjustable threaded insert sleeve structure to solve the problem that the internal insert of the existing injection mold cannot reach the design theoretical height exactly due to errors such as processing / assembly / wear, which causes product step difference and affects molding quality and molding accuracy.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a height-adjustable threaded insert toothed sleeve structure, comprising:

[0005] Braces base;

[0006] The positioning aligner is raised and lowered on the aligner base. The stud at the bottom of the insert is screwed into the first threaded hole in the middle of the positioning aligner. The insert passes through the through hole of the aligner base.

[0007] The fixing screw is screwed into the second threaded hole of the positioning tooth sleeve and the third threaded hole of the tooth sleeve base.

[0008] As a further description of the above technical solution:

[0009] The bottom of the brace base is provided with a movable groove, and the positioning brace is slidably embedded into the movable groove.

[0010] As a further description of the above technical solution:

[0011] The third threaded hole is arranged inside the movable groove, and several of them are arranged at intervals along the circumference of the through hole.

[0012] As a further description of the above technical solution:

[0013] The second threaded hole is provided at several intervals along the circumference of the first threaded hole.

[0014] As a further description of the above technical solution:

[0015] The end of the fixing screw is provided with a mating groove for engaging with a tightening tool.

[0016] In summary, by adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art:

[0017] The insert of this utility model is fitted onto the dental crown base by a positioning dental set, and the height of the insert can be finely adjusted. This solves the problem that the insert cannot reach the theoretical design height exactly due to errors such as processing / assembly / wear, which causes product segmentation and affects molding quality and molding accuracy. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of a height-adjustable threaded insert dental crown structure.

[0020] Figure 2 This is a partial structural diagram of a height-adjustable threaded insert dental crown structure.

[0021] Figure 3 An exploded view of a height-adjustable threaded insert dental crown structure.

[0022] Figure 4 This is a partially exploded view of a height-adjustable threaded insert dental crown structure.

[0023] Legend:

[0024] 1. Bracket base; 2. Positioning brace; 3. First threaded hole; 4. Insert; 5. Stud; 6. Through hole; 7. Second threaded hole; 8. Third threaded hole; 9. Fixing screw; 10. Movable groove; 11. Connecting groove; 100. Product. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Please see Figure 1-4 This utility model provides a technical solution: a height-adjustable threaded insert dental sleeve structure, comprising:

[0028] Braces base 1;

[0029] Positioning brace 2, which is raised and lowered on the brace base 1, the stud 5 at the bottom of the insert 4 is screwed into the first threaded hole 3 in the middle of the positioning brace 2, and the insert 4 passes through the through hole 6 of the brace base 1; wherein, the top surface of the insert 4 matches the inner wall of the product 100.

[0030] The fixing screw 9 is screwed into the second threaded hole 7 of the positioning tooth sleeve 2 and the third threaded hole 8 of the tooth sleeve base 1.

[0031] The bottom of the braces base 1 is provided with a movable groove 10, and the positioning braces 2 is slidably embedded in the movable groove 10 to improve the stability of the height adjustment of the positioning braces 2 and the insert 4 on the braces base 1.

[0032] The third threaded hole 8 is arranged inside the movable groove 10, and several of them are spaced apart along the circumference of the through hole 6. Several second threaded holes 7 are spaced apart along the circumference of the first threaded hole 3.

[0033] The end of the fixing screw 9 is provided with a mating groove 11 for engaging with a screwing tool, so as to improve the convenience of screwing the fixing screw 9 and thus improve the convenience of adjusting the height of the insert 4.

[0034] The working principle of the height-adjustable threaded insert sleeve structure in this embodiment includes: When in use, if the insert 4 cannot reach the theoretical design height due to errors such as processing / assembly / wear, resulting in a product step difference, the fixing screw 9 is unscrewed and the insert 4 is pushed along its axial direction to adjust its height. Through the screw connection, the positioning sleeve 2 rotates synchronously, and the second threaded hole 7 and the third threaded hole 8 are misaligned and then aligned again. The fixing screw 9 can then be screwed in to achieve positioning. Alternatively, after the fixing screw 9 is unscrewed, the positioning sleeve 2 can be moved axially directly to adjust the height of the insert 4. After that, the fixing screw 9 is screwed in again to finalize the structure.

[0035] In summary, due to the adoption of the above technical solution, the height-adjustable threaded insert dental sleeve structure of this embodiment has the following advantages compared with the prior art:

[0036] The insert of this utility model is fitted onto the dental crown base by a positioning dental set, and the height of the insert can be finely adjusted. This solves the problem that the insert cannot reach the theoretical design height exactly due to errors such as processing / assembly / wear, which causes product segmentation and affects molding quality and molding accuracy.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A height-adjustable threaded insert dental sleeve structure, characterized in that, include: Braces base; The positioning aligner is raised and lowered on the aligner base. The stud at the bottom of the insert is screwed into the first threaded hole in the middle of the positioning aligner. The insert passes through the through hole of the aligner base. The fixing screw is screwed into the second threaded hole of the positioning tooth sleeve and the third threaded hole of the tooth sleeve base.

2. A highly adjustable threaded insert sleeve structure according to claim 1, wherein The bottom of the brace base is provided with a movable groove, and the positioning brace is slidably embedded into the movable groove.

3. A highly adjustable threaded insert sleeve structure according to claim 2, wherein The third threaded hole is arranged inside the movable groove, and several of them are arranged at intervals along the circumference of the through hole.

4. The highly adjustable threaded insert sleeve structure of claim 1, wherein, The second threaded hole is provided at several intervals along the circumference of the first threaded hole.

5. The highly adjustable threaded insert sleeve structure of claim 1 wherein, The end of the fixing screw is provided with a mating groove for engaging with a tightening tool.

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