CT head mold performance detection support
By designing a sliding locking component and a limiting inclined plate that works in conjunction with the limiting hole, the problem of frequent replacement of existing CT head mold detection brackets is solved, enabling rapid fixation and stable clamping of head molds of different sizes, thus improving detection efficiency and result accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHUHAI XINGHAI HIGH-TECH CO LTD
- Filing Date
- 2025-02-27
- Publication Date
- 2026-05-15
AI Technical Summary
The existing CT head mold performance testing bracket needs to be frequently replaced to adapt to different head mold sizes, which is cumbersome and inflexible.
A CT head mold performance testing bracket was designed, comprising a fixed base, a rectangular base support, and a sliding locking assembly. Through the cooperation of the sliding frame and the limiting inclined plate, the head molds of different sizes can be quickly fixed and stably clamped. The cooperation between the limiting inclined plate and the limiting hole in the sliding locking assembly ensures that it is not easy to loosen after fixing.
The support system allows for flexible adaptation to head molds of different sizes, simplifies the operation process, improves work efficiency, and ensures the stability of the head mold during the testing process and the accuracy of the test results.
Smart Images

Figure CN224239297U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of head model performance testing technology, and in particular to a CT head model performance testing bracket. Background Technology
[0002] A CT head model is a highly realistic model used to simulate the blood vessels, soft tissues, and bone structures of the human head. It is primarily used in CT angiography (CTA) examinations to evaluate and optimize the imaging performance of CT equipment and support AI-based diagnostics. In addition, CT head models can be used for training purposes to help doctors, technicians, and others become familiar with and master CTA examination techniques and operating procedures.
[0003] When performing performance testing on a CT head model, a support frame is required for fixation. Since head models come in different sizes, different support frames need to be replaced, which is quite troublesome. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this application is to provide a CT head model performance testing bracket to solve the above problems.
[0005] The above-mentioned objective of this application is achieved through the following technical solution: a CT head model performance testing bracket, comprising a fixed base, a rectangular base bracket, and a fixed mounting structure inside the rectangular base bracket for mounting the head model. The fixed mounting structure includes a fixed frame fixedly connected to the rectangular base bracket. A sliding frame mounted on the rectangular base bracket is provided at the upper end of the fixed frame. Sliding grooves are opened on both sides of the rectangular base bracket. The sliding frame is slidably connected in the sliding grooves. A V-shaped groove is opened on the side of the fixed frame and the sliding frame that is close to each other. Sliding locking components that cooperate with the rectangular base bracket are provided on both sides of the sliding frame.
[0006] Furthermore, the sliding locking assembly includes mounting grooves on both sides of the sliding frame, a compression spring is fixedly installed in the mounting groove, a limiting inclined plate is fixedly connected to the other side of the compression spring, and a limiting hole is provided in the sliding groove on the rectangular base bracket. The limiting hole is provided in multiple sets and is evenly distributed on both sides of the rectangular base bracket.
[0007] By adopting the above technical solution, after the head mold is placed on the fixed frame, the sliding frame is slid to the top of the head mold and fixed by adjusting the sliding locking components on both sides of the sliding frame. Specifically, the limiting inclined plates on both sides of the sliding frame are inserted into the limiting holes on the rectangular base bracket. The sliding frame is slid down according to the size of the head mold. After the size of the head mold is determined, the sliding frame will be fixed because the limiting inclined plates will be in the limiting holes of that size. Since the limiting inclined plates are only inclined on one side, the other side cannot be disengaged from the limiting holes.
[0008] Furthermore, the side of the compression spring away from the limiting inclined plate is provided with an unlocking groove in the sliding frame, and an unlocking rod is fixedly provided on the side of the limiting inclined plate near the compression spring. The unlocking rod extends into the unlocking groove, and a ring is fixedly connected to the end of the unlocking rod.
[0009] By adopting the above technical solution, when unlocking, simply pull the ring to disengage the limiting inclined plate from the limiting hole, and then adjust the sliding frame to remove the head mold from the fixed frame.
[0010] Furthermore, an assist handle is fixedly installed on the sliding frame.
[0011] By adopting the above technical solution, it is easy to adjust the sliding frame.
[0012] Furthermore, the rectangular base bracket is slidably connected to the fixed base, the fixed base has a placement groove, a connecting plate is provided in the placement groove, a limit spring is fixedly connected to the connecting plate, a limit plate is fixedly connected to the end of the limit spring, a double bevel is provided at the end of the limit plate away from the limit spring, positioning holes that are evenly provided on the rectangular base bracket and inserted into the limit plate, and a release member is provided at the end of the limit plate away from the positioning holes.
[0013] By adopting the above technical solution, in order to adjust the height of the rectangular base bracket, this application achieves the following: by sliding the rectangular base bracket on the fixed base, since the limiting plate is a double inclined surface, the limiting spring in the placement groove squeezes the limiting plate, and the limiting plate can still move up and down with the rectangular base bracket, thereby facilitating the adjustment of the height of the rectangular base bracket.
[0014] Furthermore, the detachment component includes a detachment rod fixedly connected to the connecting plate, the connecting plate being rotatably connected to the placement groove, and the detachment rod extending from the fixed base and being rotatably connected to the fixed base.
[0015] By adopting the above technical solution, in order to keep the rectangular base bracket fixed after adjustment, it is only necessary to rotate the release rod so that the inclined surface of the limit plate cannot move with the positioning hole.
[0016] Furthermore, a filling layer is fixedly provided on the side of the fixed frame and the sliding frame that are close to each other.
[0017] By adopting the above technical solution, the stability of both sides of the head mold is further guaranteed.
[0018] Furthermore, the filler layer is made of flexible rubber.
[0019] In summary, this application includes the following beneficial technical effects:
[0020] The bracket, with its V-groove design of the sliding and fixed frames, can accommodate head molds of different sizes. This design allows for flexible adjustment to meet the fixing requirements of head molds of varying specifications. Users can quickly fix the head mold simply by sliding the sliding frame and utilizing the engagement of the limiting ramp and limiting hole in the sliding locking assembly. This design simplifies the operation process and improves work efficiency. After the limiting ramp in the sliding locking assembly is inserted into the limiting hole, its inclined side and flat side prevent the sliding frame from easily loosening once fixed. This design ensures the stability of the head mold during the testing process and improves the accuracy of the test results. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure in the embodiment;
[0022] Figure 2 yes Figure 1 Sectional view along section line AA;
[0023] Figure 3 This is a schematic diagram of the structure from another perspective in the embodiment;
[0024] Figure 4 yes Figure 3 Sectional view along the urgency line BB;
[0025] Figure 5 yes Figure 4 Enlarged view of point A in the middle.
[0026] Reference numerals: 1. Fixed base; 11. Connecting plate; 12. Limiting spring; 13. Limiting plate; 14. Positioning hole; 15. Release rod; 2. Rectangular base bracket; 21. Fixed frame; 22. Sliding frame; 23. Slide groove; 24. Unlocking groove; 25. Compression spring; 26. Limiting inclined plate; 27. Unlocking rod; 27. Ring; 28. Limiting hole; 3. Filling layer; 31. Power handle. Detailed Implementation
[0027] The present application will be further described in detail below with reference to the accompanying drawings.
[0028] Example, refer to Figure 1A CT head model performance testing bracket includes a fixed base 1, a rectangular base bracket 2, and a fixing and mounting structure inside the rectangular base bracket 2 for mounting the head model. The fixing and mounting structure includes a fixed frame 21 fixedly connected to the rectangular base bracket 2. A sliding frame 22 mounted on the rectangular base bracket 2 is provided at the upper end of the fixed frame 21. Sliding grooves 23 are opened on both sides of the rectangular base bracket 2, and the sliding frame 22 is slidably connected in the sliding grooves 23. A V-shaped groove is opened on the side of the fixed frame 21 and the sliding frame 22. Sliding locking components that cooperate with the rectangular base bracket 2 are provided on both sides of the sliding frame 22. The sliding locking components include mounting grooves opened on both sides of the sliding frame 22, and compression springs 25 are fixedly installed in the mounting grooves. A limiting inclined plate 26 is fixedly connected to the other side of the compression springs 25. Limiting holes 28 are provided in the sliding grooves 23 and are evenly distributed on both sides of the rectangular base bracket 2.
[0029] After the head mold is placed on the fixed frame 21, the sliding frame 22 is slid to the top of the head mold and fixed by adjusting the sliding locking components on both sides of the sliding frame 22. Specifically, the limiting inclined plates 26 on both sides of the sliding frame 22 are inserted into the limiting holes 28 on the rectangular base bracket 2. The sliding frame 22 is slid down according to the size of the head mold. After the size of the head mold is determined, the sliding frame 22 will be fixed because the limiting inclined plates 26 will be in the limiting holes 28 of the same size. Since the limiting inclined plates 26 are only inclined on one side, the other side cannot be disengaged from the limiting holes 28.
[0030] In this embodiment, refer to Figure 2 as well as Figure 3 The compression spring 25 has an unlocking groove 24 on the side away from the limiting inclined plate 26, which is located in the sliding frame 22. An unlocking rod 27 is fixedly installed on the side of the limiting inclined plate 26 near the compression spring 25, extending into the unlocking groove 24. A ring 271 is fixedly connected to the end of the unlocking rod 27. To unlock, simply pull the ring 271 to disengage the limiting inclined plate 26 from the limiting hole 28. Then, by adjusting the sliding frame 22, the head mold can be removed from the fixed frame 21.
[0031] In this embodiment, an assist handle 31 is fixedly installed on the sliding frame 22 to facilitate adjustment of the sliding frame 22.
[0032] In this embodiment, refer to Figure 4 as well as Figure 5A rectangular base bracket 2 is slidably connected to a fixed base 1. The fixed base 1 has a placement groove, in which a connecting plate 11 is placed. A limit spring 12 is fixedly connected to the connecting plate 11, and a limit plate 13 is fixedly connected to the end of the limit spring 12. The end of the limit plate 13 away from the limit spring 12 has a double-sloped surface. Positioning holes 14 are evenly spaced on the rectangular base bracket 2 to engage with the limit plate 13. A release element is provided at the end of the limit plate 13 away from the positioning holes 14. To adjust the height of the rectangular base bracket 2, this application achieves this by sliding the rectangular base bracket 2 onto the fixed base 1. Because the limit plate 13 has a double-sloped surface, the limit spring 12 in the placement groove compresses the limit plate 13, allowing the limit plate 13 to still move up and down with the rectangular base bracket 2, thus facilitating the adjustment of the height of the rectangular base bracket 2.
[0033] In this embodiment, the detachment component includes a detachment rod 15 fixedly connected to the connecting plate 11. The detachment rod 15 extends out of the fixed base 1 and is rotatably connected to the fixed base 1. In order to keep the rectangular base bracket 2 fixed after adjustment, it is only necessary to rotate the detachment rod 15 so that the inclined surface of the limiting plate 13 cannot move with the positioning hole 14.
[0034] In this embodiment, a filling layer 3 is fixedly provided on the side of the fixed frame 21 and the sliding frame 22 that are close to each other. This further ensures the stability of both sides of the head mold. The filling layer 3 is made of flexible rubber.
[0035] Specific implementation process: Assemble all components of the CT head mold performance testing bracket and ensure all components are intact. Check the flexibility and stability of key components such as the sliding frame 22, fixed frame 21, limiting inclined plate 26, and unlocking rod 27 to ensure they function properly. Next, place the head mold on the fixed frame 21, ensuring the head mold is aligned with the V-groove. Adjust the height of the sliding frame 22 according to the head mold size so that the V-groove below the sliding frame 22 fits tightly against the top of the head mold. By sliding the sliding frame 22, the limiting inclined plate 26 is inserted into the corresponding limiting hole 28. Since the limiting inclined plate 26 has only one inclined surface, when the sliding frame 22 reaches the appropriate position, the limiting inclined plate 26 will automatically engage with the limiting hole 28, achieving a stable fixation of the sliding frame 22 and ensuring the head mold does not shake during testing.
[0036] When the head mold needs to be disassembled, simply pull the unlocking ring 271 to disengage the limiting inclined plate 26 from the limiting hole 28. Then, adjust the height of the sliding frame 22 to easily remove the head mold from the fixed frame 21. Furthermore, this bracket is height-adjustable. The rectangular base bracket 2 can slide on the fixed base 1, allowing for flexible height adjustment to meet the testing needs of different head molds. When adjusting the height, because the limiting plate 13 has a double-sloped design, the limiting spring 12 in the placement slot will compress the limiting plate 13, but the limiting plate 13 can still move up and down with the rectangular base bracket 2. Once the appropriate height is reached, simply rotate the release rod 15 to prevent the inclined surface of the limiting plate 13 from moving with the positioning hole 14, thus fixing the height.
[0037] The design of this support also fully considers ease of operation and safety. The sliding frame 22 and unlocking mechanism make the operation simple and quick, improving work efficiency. Meanwhile, the filling layer 3 further ensures the stability of both sides of the head mold, reducing damage to the head mold during the inspection process. The filling layer 3 is made of flexible rubber, providing elasticity and cushioning.
[0038] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A CT head model performance testing bracket, characterized in that, The device includes a fixed base (1), a rectangular base bracket (2), and a fixed mounting structure inside the rectangular base bracket (2) for mounting the head mold. The fixed mounting structure includes a fixed frame (21) fixedly connected to the rectangular base bracket (2). A sliding frame (22) is provided on the upper end of the fixed frame (21) and mounted on the rectangular base bracket (2). Sliding grooves (23) are opened on both sides of the rectangular base bracket (2). The sliding frame (22) is slidably connected in the sliding grooves (23). A V-shaped groove is opened on the side of the fixed frame (21) and the sliding frame (22) that are close to each other. Sliding locking components that cooperate with the rectangular base bracket (2) are provided on both sides of the sliding frame (22).
2. The CT head model performance testing bracket according to claim 1, characterized in that, The sliding locking assembly includes mounting grooves on both sides of the sliding frame (22), a compression spring (25) is fixedly installed in the mounting groove, a limiting inclined plate (26) is fixedly connected to the other side of the compression spring (25), and a limiting hole (28) is provided in the sliding groove (23) on the rectangular base bracket (2). The limiting hole (28) is provided in multiple sets and is evenly distributed on both sides of the rectangular base bracket (2).
3. The CT head model performance testing bracket according to claim 2, characterized in that, The compression spring (25) is provided with an unlocking groove (24) on the side away from the limiting inclined plate (26) and the sliding frame (22) is provided with an unlocking rod (27) on the side of the limiting inclined plate (26) close to the compression spring (25). The unlocking rod (27) extends into the unlocking groove (24) and a ring (271) is fixedly connected to the end of the unlocking rod (27).
4. The CT head model performance testing bracket according to claim 1, characterized in that, An assist handle (31) is fixedly installed on the sliding frame (22).
5. The CT head model performance testing bracket according to claim 1, characterized in that, The rectangular base bracket (2) is slidably connected to the fixed base (1). The fixed base (1) has a placement groove, and a connecting plate (11) is provided in the placement groove. The connecting plate (11) is fixedly connected to a limit spring (12). The end of the limit spring (12) is fixedly connected to a limit plate (13). The end of the limit plate (13) away from the limit spring (12) has a double bevel. The rectangular base bracket (2) has evenly provided positioning holes (14) that are inserted into the limit plate (13). The end of the limit plate (13) away from the positioning hole (14) has a release part.
6. The CT head model performance testing bracket according to claim 5, characterized in that, The detachment component includes a detachment rod (15) fixedly connected to a connecting plate (11), the connecting plate (11) being rotatably connected to a placement groove, and the detachment rod (15) extending out of a fixed base (1) and being rotatably connected to the fixed base (1).
7. The CT head model performance testing bracket according to claim 1, characterized in that, A filling layer (3) is fixedly provided on the side of the fixed frame (21) and the sliding frame (22) that are close to each other.
8. The CT head model performance testing bracket according to claim 7, characterized in that, The filler layer (3) is made of flexible rubber.