Vacuum defoaming device for self-adhesive resin cement
By designing a self-adhesive resin cement vacuum degassing device, and utilizing the combination of rotating and telescopic components, air bubbles in the crown can be efficiently removed in a small space. This solves the problem of prolonged degassing cycles in dental applications using traditional devices and improves clinical operational efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU DENGDASHI MEDICAL TECH CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-08
AI Technical Summary
When using traditional vacuum degassing devices in dentistry to degas small-volume crowns, it takes longer to reach the target negative pressure value, resulting in a longer degassing cycle and affecting clinical operation efficiency.
A vacuum degassing device for self-adhesive resin cement was designed. Through the cooperation of rotating and telescopic components, the vacuum component can move efficiently in a small space and surround the crown, and the vacuum pump can quickly remove air bubbles.
It shortens the defoaming cycle and improves the efficiency of dental clinical operations.
Smart Images
Figure CN224207474U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of vacuum degassing devices, and more specifically, it relates to a vacuum degassing device for self-adhesive resin cement. Background Technology
[0002] Self-adhesive resin cement is a novel type of cement material that can independently bond restorations. Due to its ease of use, it is widely used in the field of dental restorations for bonding indirect restorations such as crowns, inlays, bridges, and posts. However, in clinical practice, it is necessary to quickly remove air bubbles after injecting the resin into the crown to avoid residual air bubbles that could reduce bond strength or cause the restoration to fall off.
[0003] Traditional vacuum degassing devices (such as large vacuum tanks or general-purpose degassing machines) are mostly designed for industrial or laboratory scenarios and have a large cavity volume. In dental applications, when degassing small-volume crowns (usually only a few milliliters), it takes more time to reach the target negative pressure value, resulting in a longer degassing cycle and affecting clinical operation efficiency. Utility Model Content
[0004] In response to the problem that traditional vacuum degassing devices have a large cavity volume, which requires more time to reach the target negative pressure value when degassing small-volume crowns in dental applications, thus prolonging the degassing cycle and affecting clinical operation efficiency, this utility model proposes a self-adhesive resin cement vacuum degassing device to overcome the above-mentioned technical problems existing in the existing related technologies.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] This utility model relates to a vacuum degassing device for self-adhesive resin cement, comprising a base, a fixed box fixedly connected to the top of the base, a square box fixedly installed on the top of the fixed box, a rotating component rotatably connected inside the square box, a first telescopic component inside the square box, a second telescopic component inside the fixed box, a vacuum component at the bottom of the second telescopic component, the rotating component being used to push the second telescopic component and the vacuum component downward, and the first telescopic component being used to limit and fix the rotating component.
[0007] Furthermore, the rotating assembly includes a bearing, which is fixedly installed inside the square box. A rotating shaft is fixedly installed inside the bearing. An elliptical wheel and a handwheel are fixedly connected to the outer surface of the rotating shaft. A limit hole and a sliding groove are formed on the outer surface of the elliptical wheel. The handwheel is located on the outside of the square box.
[0008] Furthermore, the first telescopic component includes a first fixed cylinder, which is fixedly connected to the square box. Inside the first fixed cylinder, a first sliding rod and a first sliding plate are slidably connected. A first spring is sleeved on the outer surface of the first sliding rod. The lower end of the first spring is fixedly connected to the first sliding plate, and the upper end of the first spring is fixedly connected to the first fixed cylinder. A handle is fixedly connected to the upper end of the first sliding rod, and the lower end of the first sliding rod is slidably connected to the slide groove.
[0009] Furthermore, the second telescopic component includes a support plate, which is fixedly connected to the inside of the fixed box. A second fixed cylinder is fixedly connected to the bottom of the support plate. A second sliding rod and a second sliding plate are slidably connected inside the second fixed cylinder. A second spring is sleeved on the outer surface of the second sliding rod. The upper end of the second spring is fixedly connected to the second sliding plate, the lower end of the second spring is fixedly connected to the second fixed cylinder, and the lower end of the second sliding rod is fixedly connected to the vacuum component.
[0010] Furthermore, the vacuum assembly includes a vacuum pump, which is fixedly installed inside the base. A connecting pipe is fixedly connected to the outer surface of the vacuum pump, and a bellows is fixedly connected to the end of the connecting pipe. A cover plate is fixedly connected to the end of the bellows, and the cover plate is fixedly connected to the lower end of the second sliding rod. A sealing strip is fixedly connected to the bottom of the cover plate.
[0011] Furthermore, a pressure relief pipe is fixedly connected to the outer surface of the cover plate, and a valve is fixedly installed on the outer surface of the pressure relief pipe.
[0012] Furthermore, a baffle is rotatably connected to the outer surface of the fixed box.
[0013] This utility model has the following beneficial effects:
[0014] This invention connects a rotating component and a second telescopic component. During rotation, the rotating component gradually pushes the second telescopic component downward, which in turn drives the vacuum component downward. This allows the vacuum component to surround the crown inside the fixed box. Furthermore, the size of the vacuum component is smaller than that of the fixed box, resulting in higher efficiency in vacuuming within a smaller space with the same power, thus shortening the degassing cycle.
[0015] This invention connects the first sliding rod and the elliptical wheel. During rotation, the first sliding rod slides along the groove on the outer surface of the elliptical wheel until it aligns with the limiting hole. Then, the first spring pushes the first sliding rod to engage with the limiting hole, thus limiting and fixing the elliptical wheel and preventing unnecessary rotation of the elliptical wheel during vacuuming.
[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the utility model embodiments, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the external outline structure of this utility model;
[0019] Figure 2 This is a schematic cross-sectional view of the fixing box of this utility model. Figure 1 ;
[0020] Figure 3 This is a schematic cross-sectional view of the fixing box of this utility model. Figure 2 ;
[0021] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle;
[0022] Figure 5 This is a schematic diagram of the elliptical wheel structure of this utility model;
[0023] Figure 6 This is a cross-sectional view of the first fixed cylinder of this utility model;
[0024] Figure 7 This is a cross-sectional view of the second fixed cylinder of this utility model;
[0025] Figure 8 This is a cross-sectional view of the base structure of this utility model;
[0026] Figure 9 For the present utility model Figure 3 Enlarged schematic diagram of the structure at point B.
[0027] The attached diagram lists the components represented by each number as follows:
[0028] 1. Base; 2. Fixing box; 3. Square box; 4. Rotating assembly; 401. Bearing; 402. Rotating shaft; 403. Elliptical wheel; 404. Handwheel; 405. Limiting hole; 406. Slide groove; 5. First telescopic assembly; 501. First fixing cylinder; 502. First sliding rod; 503. First sliding plate; 504. First spring; 505. Handle; 6. Second telescopic assembly; 601. Support plate; 602. Second fixing cylinder; 603. Second sliding rod; 604. Second sliding plate; 605. Second spring; 7. Vacuum assembly; 701. Vacuum pump; 702. Connecting pipe; 703. Bellows; 704. Cover plate; 705. Sealing strip; 8. Pressure relief pipe; 9. Valve; 10. Baffle. Detailed Implementation
[0029] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.
[0030] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements 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 the utility model.
[0031] Please see Figures 1-9 As shown, this utility model is a vacuum degassing device for self-adhesive resin cement, including a base 1, a fixed box 2 fixedly connected to the top of the base 1, a square box 3 fixedly installed on the top of the fixed box 2, a rotating component 4 rotatably connected inside the square box 3, a first telescopic component 5 disposed inside the square box 3, a second telescopic component 6 disposed inside the fixed box 2, a vacuum component 7 disposed at the bottom of the second telescopic component 6, the rotating component 4 being used to push the second telescopic component 6 and the vacuum component 7 downward, and the first telescopic component 5 being used to limit and fix the rotating component 4.
[0032] After the crown with self-adhesive resin cement is placed in the fixed box 2, the rotating component 4 is pushed to rotate. The rotating component 4 rotates in the square box 3 at the top of the fixed box 2. During the rotation, the rotating component 4 gradually pushes the first telescopic component 5 and the second telescopic component 6 to move and retract. After the rotating component 4 has rotated 90 degrees, the first telescopic component 5 is reset and inserted into the rotating component 4 to limit and fix the rotating component 4. During the retraction of the second telescopic component 6, the vacuum component 7 moves downward, so that the vacuum component 7 surrounds the crown in the fixed box 2. The vacuum component 7 is activated to evacuate the crown to break the air bubbles generated by the cement inside.
[0033] This invention connects the rotating component 4 and the second telescopic component 6. During rotation, the rotating component 4 gradually pushes the second telescopic component 6 downward, and the second telescopic component 6 drives the vacuum component 7 downward, so that the vacuum component 7 surrounds the crown inside the fixed box 2. Moreover, the size of the vacuum component 7 is smaller than that of the fixed box 2. Under the same power, it is more efficient to vacuum in a smaller space and shortens the defoaming cycle.
[0034] In one embodiment, the rotating assembly 4 includes a bearing 401, which is fixedly installed inside the square box 3. A rotating shaft 402 is fixedly installed inside the bearing 401. An elliptical wheel 403 and a handwheel 404 are fixedly connected to the outer surface of the rotating shaft 402. A limit hole 405 and a sliding groove 406 are provided on the outer surface of the elliptical wheel 403. The handwheel 404 is located on the outside of the square box 3.
[0035] Pushing the handwheel 404 drives the rotating shaft 402, which in turn drives the elliptical wheel 403 to rotate inside the square box 3. The bearing 401 mounted on the outer surface of the rotating shaft 402 can reduce the friction between the rotating shaft 402 and the square box 3 when the rotating shaft 402 rotates.
[0036] In one embodiment, the first telescopic component 5 includes a first fixed cylinder 501, which is fixedly connected to the square box 3. A first sliding rod 502 and a first sliding plate 503 are slidably connected inside the first fixed cylinder 501. A first spring 504 is sleeved on the outer surface of the first sliding rod 502. The lower end of the first spring 504 is fixedly connected to the first sliding plate 503, and the upper end of the first spring 504 is fixedly connected to the first fixed cylinder 501. A handle 505 is fixedly connected to the upper end of the first sliding rod 502, and the lower end of the first sliding rod 502 is slidably connected to the slide groove 406.
[0037] As the elliptical wheel 403 rotates, it gradually pushes the first sliding rod 502 to move. The first sliding rod 502 drives the first sliding plate 503 to slide upward within the first fixed cylinder 501. The first sliding plate 503 compresses the first spring 504, and the first sliding rod 502 slides within the groove 406 on the outer surface of the elliptical wheel 403 until the limiting hole 405 on the outer surface of the elliptical wheel 403 aligns with the first sliding rod 502. At this point, the first spring 504 pushes the first sliding plate 503 and the first sliding rod 502 back to their original positions, allowing the first sliding rod 502 to engage with the limiting hole 405, thus achieving the limiting and fixing of the elliptical wheel 403. Pulling the handle 505 moves the first sliding rod 502 out of the limiting hole 405, releasing the limiting and fixing of the elliptical wheel 403.
[0038] In one embodiment, the second telescopic component 6 includes a support plate 601, which is fixedly connected to the inside of the fixed box 2. A second fixed cylinder 602 is fixedly connected to the bottom of the support plate 601. A second sliding rod 603 and a second sliding plate 604 are slidably connected inside the second fixed cylinder 602. A second spring 605 is sleeved on the outer surface of the second sliding rod 603. The upper end of the second spring 605 is fixedly connected to the second sliding plate 604, and the lower end of the second spring 605 is fixedly connected to the second fixed cylinder 602. The lower end of the second sliding rod 603 is fixedly connected to the vacuum component 7.
[0039] The elliptical wheel 403 pushes the second sliding rod 603 to move. The second sliding rod 603 drives the second sliding plate 604 to slide inside the second fixed cylinder 602. The second sliding plate 604 compresses the second spring 605, causing the second sliding rod 603 to slide downward and push the vacuum assembly 7 to move downward.
[0040] In one embodiment, the vacuum assembly 7 includes a vacuum pump 701, which is fixedly installed inside the base 1. A connecting pipe 702 is fixedly connected to the outer surface of the vacuum pump 701. A bellows 703 is fixedly connected to the end of the connecting pipe 702. A cover plate 704 is fixedly connected to the end of the bellows 703. The cover plate 704 is fixedly connected to the lower end of the second sliding rod 603. A sealing strip 705 is fixedly connected to the bottom of the cover plate 704.
[0041] The second sliding rod 603 drives the cover plate 704 to descend so that it surrounds the crown. The sealing strip 705 at the bottom of the cover plate 704 enhances the sealing. During the descent of the cover plate 704, the bellows 703 is stretched, and the vacuum pump 701 is started. The vacuum pump 701 draws a vacuum inside the cover plate 704 through the connecting pipe 702 and the bellows 703, causing the air bubbles in the self-adhesive resin cement inside the crown below the cover plate 704 to burst.
[0042] In one embodiment, for the cover plate 704, a pressure relief pipe 8 is fixedly connected to the outer surface of the cover plate 704, and a valve 9 is fixedly installed on the outer surface of the pressure relief pipe 8.
[0043] Opening valve 9 allows pressure relief pipe 8 to be open, enabling outside air to enter the interior of cover plate 704 through pressure relief pipe 8, balancing the pressure inside and outside cover plate 704. Then, pulling handle 505 moves the first sliding rod 502 out of the limiting hole 405, releasing the limiting fixation of elliptical wheel 403. Then, reversing elliptical wheel 403 causes the second spring 605 to push the second sliding plate 604 and the second sliding rod 603 to reset. The second sliding rod 603 drives cover plate 704 to move upward to reset.
[0044] In one embodiment, for the aforementioned fixed box 2, a baffle 10 is rotatably connected to the outer surface of the fixed box 2.
[0045] After the baffle 10 is closed, the baffle 10 can protect the components inside the fixed box 2.
[0046] Through the above technical solution, 1. By connecting the rotating component 4 and the second telescopic component 6, the rotating component 4 gradually pushes the second telescopic component 6 downward during rotation, and the second telescopic component 6 drives the vacuum component 7 downward, so that the vacuum component 7 surrounds the crown in the fixed box 2. Moreover, the size of the vacuum component 7 is smaller than that of the fixed box 2. Under the same power, the efficiency of vacuuming in a smaller space is higher, and the degassing cycle is shortened; 2. By connecting the first sliding rod 502 and the elliptical wheel 403, during rotation, the first sliding rod 502 slides along the groove 406 on the outer surface of the elliptical wheel 403 until the first sliding rod 502 is aligned with the limiting hole 405. Then, the first spring 504 pushes the first sliding rod 502 to insert into the limiting hole 405, which can limit and fix the elliptical wheel 403 and avoid unnecessary rotation of the elliptical wheel 403 during vacuuming.
[0047] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0048] The preferred embodiments of the utility model disclosed above are merely illustrative of the utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the utility model, thereby enabling those skilled in the art to better understand and utilize it. The utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A vacuum degassing device for self-adhesive resin cement, comprising a base (1), characterized in that, The base (1) is fixedly connected to a fixed box (2) at the top. A square box (3) is fixedly installed on the top of the fixed box (2). A rotating component (4) is rotatably connected inside the square box (3). A first telescopic component (5) is provided inside the square box (3). A second telescopic component (6) is provided inside the fixed box (2). A vacuum component (7) is provided at the bottom of the second telescopic component (6). The rotating component (4) is used to push the second telescopic component (6) and the vacuum component (7) to move downward. The first telescopic component (5) is used to limit and fix the rotating component (4).
2. The vacuum degassing device for self-adhesive resin cement according to claim 1, characterized in that, The rotating assembly (4) includes a bearing (401), which is fixedly installed inside the square box (3). A rotating shaft (402) is fixedly installed inside the bearing (401). An elliptical wheel (403) and a handwheel (404) are fixedly connected to the outer surface of the rotating shaft (402). A limit hole (405) and a sliding groove (406) are opened on the outer surface of the elliptical wheel (403). The handwheel (404) is located on the outside of the square box (3).
3. The vacuum degassing device for self-adhesive resin cement according to claim 2, characterized in that, The first telescopic component (5) includes a first fixed cylinder (501), which is fixedly connected to the square box (3). The first fixed cylinder (501) is slidably connected to a first sliding rod (502) and a first sliding plate (503). A first spring (504) is sleeved on the outer surface of the first sliding rod (502). The lower end of the first spring (504) is fixedly connected to the first sliding plate (503), and the upper end of the first spring (504) is fixedly connected to the first fixed cylinder (501). A handle (505) is fixedly connected to the upper end of the first sliding rod (502), and the lower end of the first sliding rod (502) is slidably connected to the slide groove (406).
4. The vacuum degassing device for self-adhesive resin cement according to claim 3, characterized in that, The second telescopic component (6) includes a support plate (601), which is fixedly connected to the inside of the fixed box (2). The bottom of the support plate (601) is fixedly connected to a second fixed cylinder (602). The inside of the second fixed cylinder (602) is slidably connected to a second sliding rod (603) and a second sliding plate (604). The outer surface of the second sliding rod (603) is fitted with a second spring (605). The upper end of the second spring (605) is fixedly connected to the second sliding plate (604), and the lower end of the second spring (605) is fixedly connected to the second fixed cylinder (602). The lower end of the second sliding rod (603) is fixedly connected to the vacuum component (7).
5. The vacuum degassing device for self-adhesive resin cement according to claim 4, characterized in that, The vacuum assembly (7) includes a vacuum pump (701), which is fixedly installed inside the base (1). A connecting pipe (702) is fixedly connected to the outer surface of the vacuum pump (701). A bellows (703) is fixedly connected to the end of the connecting pipe (702). A cover plate (704) is fixedly connected to the end of the bellows (703). The cover plate (704) is fixedly connected to the lower end of the second sliding rod (603). A sealing strip (705) is fixedly connected to the bottom of the cover plate (704).
6. The vacuum degassing device for self-adhesive resin cement according to claim 5, characterized in that, A pressure relief pipe (8) is fixedly connected to the outer surface of the cover plate (704), and a valve (9) is fixedly installed on the outer surface of the pressure relief pipe (8).
7. The vacuum degassing device for self-adhesive resin cement according to claim 6, characterized in that, A baffle (10) is rotatably connected to the outer surface of the fixed box (2).