Compression resistance testing device for glass micro-fusion pressure sensor

Abstract

The utility model relates to the technical field of glass micro-melting pressure sensors, in particular to a compression resistance testing device for a glass micro-melting pressure sensor, which comprises a bottom plate, side plates fixedly arranged on the bottom plate, the tops of the side plates are mutually connected, sliding openings are formed in the inner walls of the side plates, air cylinders are arranged in the sliding openings, and the telescopic ends of the air cylinders are fixedly connected with pressing plates. Foldable and retractable protection plate mechanisms are arranged at the two ends of the pressing plate, a mounting table is arranged in the center of the top of the bottom plate, a mounting groove for mounting a clamp is formed in the mounting table, and a locking mechanism for locking the clamp is arranged on the inner wall of the mounting groove. According to the utility model, the foldable and contractible protection plate mechanism and the turnover plate are arranged and are distributed on the two sides of the top protection cover, and the folding plate on the back and the turnover plate in front of the top protection cover can effectively block high-speed splashing broken glass generated after the sensor is broken, so that the broken glass is prevented from causing body injuries such as cutting injury and stabbing injury to testers; meanwhile, test equipment and peripheral precise instruments are prevented from being damaged, and economic losses are reduced.

Description

Technical Field

[0001] This utility model relates to the field of glass micro-melting pressure sensor technology, and in particular to a pressure resistance testing device for glass micro-melting pressure sensors. Background Technology

[0002] The glass micro-fusion pressure sensor is a high-precision pressure sensing element based on micro-fused glass encapsulation technology. Its core principle involves directly sintering a strain gauge or piezoresistive chip onto the surface of a metallic elastomer (such as stainless steel) using high-temperature micro-fused glass (typically low-melting-point glass powder), forming a robust, insulating, and high-temperature resistant rigid connection. This process effectively eliminates the aging problems of traditional adhesives, significantly improving the sensor's long-term stability, creep resistance, and temperature adaptability, while maintaining high sensitivity and overload resistance. It is suitable for pressure measurement in extreme environments such as aerospace, automotive electronics, and industrial automation.

[0003] Currently, pressure resistance testing of glass micro-fusion pressure sensors typically employs conventional pressure testing equipment. The sensor is placed on a test platform, and pressure is gradually applied using a hydraulic or pneumatic system until the sensor reaches its limit or fails, thereby obtaining its pressure resistance data. However, this traditional testing method presents significant safety hazards. Due to the material properties of glass micro-fusion pressure sensors, they will shatter when subjected to pressure exceeding their tolerance range, generating a large amount of high-speed flying glass shards. These shards can not only cause direct bodily injuries such as cuts and punctures to testing personnel, but also damage the testing equipment and surrounding precision instruments, resulting in economic losses. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing glass micro-fusion pressure sensors, which, due to their material properties, shatter when subjected to pressure exceeding their tolerance range, generating a large amount of high-speed flying glass shards. These shards can cause direct physical harm such as cuts and punctures to testing personnel, and may also damage testing equipment and surrounding precision instruments, resulting in economic losses. Therefore, this invention proposes a pressure resistance testing device for glass micro-fusion pressure sensors.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A pressure testing device for a glass micro-fusion pressure sensor includes a base plate, on which side plates connected at the top are fixedly mounted. A sliding opening is formed on the inner wall of each side plate, and a cylinder is disposed within the sliding opening. A pressure plate is fixedly connected to the telescopic end of the cylinder. Foldable and retractable protective plate mechanisms are provided at both ends of the pressure plate. A mounting platform is provided at the top center of the base plate, and a mounting groove for a mounting fixture is formed on the mounting platform. A locking mechanism for a locking fixture is provided on the inner wall of the mounting groove.

[0007] Preferably, the protective plate mechanism includes a connecting block, a top protective cover, a folding plate, and a movable plate. The connecting block is fixedly disposed on the top of the side plate, the top protective cover is fixedly disposed on the top of the connecting block, the folding plate is hinged to the bottom of the top protective cover, and the movable plate is fixedly connected to both ends of the pressure plate.

[0008] Preferably, there are three folding plates and three movable plates, which are distributed on both sides and the back of the top protective cover, and the top of the movable plate is connected to the bottom of the folding plate by a hinge.

[0009] Preferably, the locking mechanism includes a sliding hole, a spring, a locking block, and a pull rod. The sliding hole is disposed on the inner wall of the mounting groove, the spring is sleeved on the pull rod, the locking block is slidably disposed in the sliding hole, and the pull rod passes through the outer wall of the mounting platform and is slidably connected.

[0010] Preferably, one end of the spring is fixedly connected to the inner wall of the sliding hole, the other end of the spring is fixedly connected to the locking block, and one end of the pull rod disposed in the sliding hole is fixedly connected to the locking block.

[0011] Preferably, a hinged flip plate is provided at the front of the top protective cover.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. When this utility model is in use, by setting up a foldable and retractable protective plate mechanism and a flip plate, when the pressure plate is subjected to pressure test on the glass micro-melting pressure sensor under the action of the cylinder, the folding plates distributed on both sides of the top protective cover, the back, and the flip plate in front can effectively block the high-speed flying glass fragments generated after the sensor breaks, avoiding cuts, punctures, and other bodily injuries to the test personnel caused by the broken glass, while preventing damage to the test equipment and surrounding precision instruments, and reducing economic losses.

[0014] 2. When in use, the present invention can stably lock the fixture in the mounting groove through the locking mechanism on the mounting platform, using the cooperation of spring, locking block and pull rod, thereby firmly fixing the glass micro-melting pressure sensor. During the pressure test, the sensor will not shake or shift, ensuring the accuracy and reliability of the test data, making the test results more valuable and providing a strong basis for product quality assessment. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of a pressure resistance testing device for a glass micro-melting pressure sensor proposed in this utility model;

[0016] Figure 2A cross-sectional view of a pressure resistance testing device for a glass micro-melting pressure sensor proposed in this utility model. Figure 1 ;

[0017] Figure 3 A cross-sectional view of a pressure resistance testing device for a glass micro-melting pressure sensor proposed in this utility model. Figure 2 ;

[0018] Figure 4 This is an enlarged view of section A of the structure of a pressure testing device for a glass micro-melting pressure sensor proposed in this utility model.

[0019] In the diagram: 1. Base plate; 2. Side plate; 3. Sliding port; 4. Cylinder; 5. Pressure plate; 6. Protective plate mechanism; 7. Mounting platform; 8. Mounting groove; 9. Locking mechanism; 10. Connecting block; 11. Top protective cover; 12. Folding plate; 13. Moving plate; 14. Sliding hole; 15. Spring; 16. Locking block; 17. Pull rod; 18. Flip plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] Reference Figures 1-4 A pressure resistance testing device for a glass micro-fusion pressure sensor includes a base plate 1, on which side plates 2 are fixedly mounted and connected at the top. A sliding opening 3 is provided on the inner wall of the side plate 2, and a cylinder 4 is provided in the sliding opening 3. A pressure plate 5 is fixedly connected to the telescopic end of the cylinder 4. A foldable and retractable protective plate mechanism 6 is provided at both ends of the pressure plate 5. The protective plate mechanism 6 includes a connecting block 10, a top protective cover 11, a folding plate 12, and a moving plate 13. The connecting block 10 is fixedly mounted on the top of the side plate 2, the top protective cover 11 is fixedly mounted on the top of the connecting block 10, the folding plate 12 is mounted at the bottom of the top protective cover 11 by a hinge, and the moving plate 13 is fixedly connected to both ends of the pressure plate 5.

[0022] A mounting platform 7 is provided at the top center of the base plate 1. The mounting platform 7 has a mounting groove 8 for mounting fixtures. The inner wall of the mounting groove 8 is provided with a locking mechanism 9 for locking fixtures. The locking mechanism 9 includes a sliding hole 14, a spring 15, a locking block 16 and a pull rod 17. The sliding hole 14 is provided on the inner wall of the mounting groove 8. The spring 15 is sleeved on the pull rod 17. The locking block 16 is slidably provided in the sliding hole 14. The pull rod 17 passes through the outer wall of the mounting platform 7 and is slidably connected.

[0023] It should be noted that cylinder 4 is existing technology in this field. The specific model and specifications to be used need to be selected and determined according to the actual specifications of the device. The specific selection and calculation method adopts existing technology in this field, so it will not be elaborated here. All cylinders can be powered by external devices and controlled to open and close.

[0024] Furthermore, three folding plates 12 and three movable plates 13 are provided and distributed on both sides and the back of the top protective cover 11. The top of the movable plate 13 is connected to the bottom of the folding plate 12 by a hinge.

[0025] Among them, the folding plate 12 adopts a foldable design, which can be folded up when the device is not working, without taking up too much space, making it convenient for the storage and transportation of the device;

[0026] In addition, the material of the folding plate 12 has a certain degree of flexibility and strength, which can not only ensure the protective effect, but also absorb some energy when it is impacted, further improving the protective performance.

[0027] Furthermore, one end of the spring 15 is fixedly connected to the inner wall of the sliding hole 14, and the other end of the spring 15 is fixedly connected to the locking block 16. One end of the pull rod 17, which is located inside the sliding hole 14, is fixedly connected to the locking block 16.

[0028] Among them, the spring 15 has good elastic properties. When the locking block 16 is subjected to external force, it can provide a stable restoring force for the locking block 16 through its own compression and extension, ensuring that the locking block 16 can reliably lock and unlock the clamp. The operator can pull the lever 17 to drive the locking block 16 to slide in the sliding hole 14 to realize the unlocking and locking operation of the clamp.

[0029] Furthermore, a flip plate 18 is provided at the front of the top protective cover 11 via a hinge.

[0030] The top protective cover 11 has a hinged flip plate 18 mounted on the front. It can be closed during testing to provide full protection, and can be flipped open during operation to facilitate the placement or adjustment of the sensor under test, thus balancing safety and ease of use.

[0031] Working principle:

[0032] First, place the fixture in the mounting slot 8 of the mounting platform 7. Pull the lever 17 to cause the locking block 16 to slide within the sliding hole 14, compressing the spring 15. Once the fixture is in place, release the lever 17, extending the spring 15 and pushing the locking block 16 into the corresponding position on the fixture, thus locking the fixture and securely mounting the glass micro-fusion pressure sensor to be measured onto the fixture.

[0033] Then, cylinder 4 is activated. The telescopic end of cylinder 4 pushes pressure plate 5 downward along the sliding opening 3 on the inner wall of side plate 2, gradually applying pressure to the glass micro-melting pressure sensor installed on the mounting platform 7 to conduct a pressure resistance test.

[0034] Next, as the pressure plate 5 moves down, it causes the folding plates 12 on the moving plates 13 at both ends to unfold. Since the folding plates 12 and the moving plates 13 are connected by hinges, they can be unfolded flexibly. At the same time, the flip plate 18 in front of the top protective cover 11 is closed, so that the protective plate mechanism 6 forms a complete protective space, providing safety protection for the test. During the test, the folding plates 12 absorb some of the impact energy with their flexibility and strength, ensuring the safety of the test.

[0035] After the test is completed, cylinder 4 is restarted to raise and reset pressure plate 5, flip plate 18 is opened, folding plate 12 is folded up, lever 17 is pulled to unlock the clamp, and the glass micro-melting pressure sensor under test is taken out, completing the entire test process.

[0036] 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 pressure resistance testing device for a glass micro-fusion pressure sensor, comprising a base plate (1), characterized in that, The base plate (1) is fixedly provided with side plates (2) that are connected to each other at the top. The inner wall of the side plate (2) is provided with a sliding opening (3). A cylinder (4) is provided in the sliding opening (3). A pressure plate (5) is fixedly connected to the telescopic end of the cylinder (4). A foldable and retractable protective plate mechanism (6) is provided at both ends of the pressure plate (5). A mounting platform (7) is provided at the top center of the base plate (1). A mounting groove (8) for mounting fixtures is provided on the mounting platform (7). A locking mechanism (9) for locking fixtures is provided on the inner wall of the mounting groove (8).

2. The pressure resistance testing device for a glass micro-fusion pressure sensor according to claim 1, characterized in that, The protective plate mechanism (6) includes a connecting block (10), a top protective cover (11), a folding plate (12), and a moving plate (13). The connecting block (10) is fixedly installed on the top of the side plate (2), the top protective cover (11) is fixedly installed on the top of the connecting block (10), the folding plate (12) is hinged to the bottom of the top protective cover (11), and the moving plate (13) is fixedly connected to both ends of the pressure plate (5).

3. The pressure resistance testing device for a glass micro-fusion pressure sensor according to claim 2, characterized in that, The folding plate (12) and the moving plate (13) are each provided in threes and distributed on both sides and the back of the top protective cover (11). The top of the moving plate (13) is connected to the bottom of the folding plate (12) by a hinge.

4. The pressure resistance testing device for a glass micro-fusion pressure sensor according to claim 1, characterized in that, The locking mechanism (9) includes a sliding hole (14), a spring (15), a locking block (16), and a pull rod (17). The sliding hole (14) is located on the inner wall of the mounting groove (8). The spring (15) is sleeved on the pull rod (17). The locking block (16) is slidably located in the sliding hole (14). The pull rod (17) passes through the outer wall of the mounting platform (7) and is slidably connected.

5. A pressure resistance testing device for a glass micro-fusion pressure sensor according to claim 4, characterized in that, One end of the spring (15) is fixedly connected to the inner wall of the sliding hole (14), and the other end of the spring (15) is fixedly connected to the locking block (16). One end of the pull rod (17) located in the sliding hole (14) is fixedly connected to the locking block (16).

6. The pressure resistance testing device for a glass micro-fusion pressure sensor according to claim 2, characterized in that, A flip plate (18) is hinged to the front of the top protective cover (11).

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