Sensor installation tool for static explosion shock wave pressure measurement

Abstract

The utility model discloses a sensor installation tool for static explosion shock wave pressure measurement, which comprises a base and an upper cover which are sequentially connected from bottom to top, the upper cover is sleeved on the outer side of the base, the upper cover is connected with the base, and the upper end of the upper cover is flush with the upper end of the base; the base and the upper cover are internally provided with corresponding cavities, the cavities are used for installing the upper cover and connecting the base, the base, the upper cover and the base are designed in a separated mode, all parts are installed easily, the base and the upper cover are internally provided with the corresponding cavities, the cavities are used for installing the sensors, and when the sensors are installed in place, the sensors can be installed in the cavities. An operator only needs to slightly rotate the base, the base can be accurately and tightly attached to a sensor shell, it is ensured that the sensor does not move in the whole measuring process, pressure sensors of different brands can be installed in the inner cavity, and adaptability is more flexible.

Description

Technical Field

[0001] This utility model belongs to the field of explosion shock wave testing and damage assessment technology, and relates to a sensor installation fixture for measuring static explosion shock wave pressure. Background Technology

[0002] In explosive yield tests, wall-mounted pressure sensors are required to accurately capture the time history curve of the ground reflected pressure. These sensors mainly consist of a sensor body, sealing ring, fastening nut, and signal components. As a key component for acquiring pressure information, the quality of the sensor's installation directly affects the accuracy of the measurement results.

[0003] Currently, according to industry requirements, sensors are mostly installed on fixed circular or square bases using their own fastening nuts. During pre-test preparation, the installation process is cumbersome and complex due to the structure and dimensions of the sensor body and fastening nuts, requiring significant manpower and time for precise operation, greatly limiting test efficiency and making it difficult to keep pace with high-efficiency testing. Existing installation fixtures lack broad versatility, making it difficult to flexibly adapt to various brands of pressure sensors and failing to meet the increasingly diverse testing requirements. Furthermore, the complex environment of explosion test sites often results in sensors being damaged by high-speed fragments, requiring inspection or replacement. Due to the time constraints of on-site testing, personnel must complete replacements quickly, a very time-consuming process that may delay the test schedule and cause adverse effects. To facilitate convenient, quick, and reliable sensor installation, a sensor installation fixture with a simple structure and easy operation needs to be designed. Utility Model Content

[0004] The purpose of this invention is to solve the problems in the existing technology where it is difficult to flexibly adapt to pressure sensors of different brands, which cannot meet the increasingly diverse test requirements, and the sensor replacement and installation process is cumbersome and complicated, which restricts the test efficiency. The invention provides a sensor installation fixture for measuring static explosion shock wave pressure, which has the characteristics of simple structure, convenient installation, time saving and strong applicability.

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

[0006] A sensor mounting fixture for measuring static explosion shock wave pressure includes a base and a top cover connected sequentially from bottom to top. The top cover is fitted over the outside of the base and connected to the base. The upper end of the top cover is flush with the upper end of the base.

[0007] The base and the top cover have corresponding cavities inside, which are used to install sensors.

[0008] Furthermore, in this utility model, the outer wall of the base includes a first outer diameter and a second outer diameter connected sequentially from bottom to top, wherein the diameter of the first outer diameter is larger than the diameter of the second outer diameter;

[0009] Furthermore, in this utility model, the upper cover is sleeved on the outside of the second outer diameter;

[0010] Furthermore, in this invention, the base has a first cavity and a second cavity that pass through it sequentially, and the diameter of the first cavity is smaller than the diameter of the second cavity.

[0011] Furthermore, in this utility model, the outer wall of the upper cover includes a third outer diameter and a fourth outer diameter connected sequentially from bottom to top, and the diameter of the third outer diameter is larger than the diameter of the fourth outer diameter;

[0012] Furthermore, in this utility model, the interior of the upper cover has a third cavity, a fourth cavity, and a fifth cavity that pass through each other in sequence;

[0013] Furthermore, in this invention, the third cavity is connected to the second outer diameter;

[0014] Furthermore, in this invention, the fourth cavity has the same inner diameter as the second cavity;

[0015] Furthermore, in this invention, the inner diameter of the fifth cavity is smaller than the inner diameter of the fourth cavity;

[0016] Furthermore, in this utility model, the fourth outer diameter is connected to the base;

[0017] Furthermore, in this invention, the first cavity, the second cavity, the third cavity, the fourth cavity, and the fifth cavity are connected sequentially from bottom to top.

[0018] Furthermore, in this invention, the lower end of the third outer diameter abuts against the upper end surface of the first outer diameter.

[0019] Furthermore, in this invention, the upper end of the second outer diameter abuts against the upper end of the third cavity.

[0020] Furthermore, this utility model also includes a fastening nut, which is disposed inside the fourth cavity and the second cavity;

[0021] Furthermore, in this invention, the fastening nut is used to fix the sensor.

[0022] Furthermore, in this invention, the upper end of the sensor body abuts against the upper end of the fourth cavity;

[0023] Furthermore, in this invention, the sensor's leads are connected to the outside through the fifth cavity and the first cavity.

[0024] Furthermore, in this utility model, the upper cover and the base are connected by threads.

[0025] Furthermore, in this utility model, both the top cover and the base are made of polytetrafluoroethylene.

[0026] Furthermore, in this invention, the base is made of steel.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] This utility model discloses a sensor installation fixture for measuring static explosion shock wave pressure, including a base and a top cover connected sequentially from bottom to top. The top cover is connected to the base, and the base, top cover, and base are designed to be separate, making the installation of each component simple. Corresponding cavities are opened inside the base and top cover, which are used to install sensors. After the sensor is installed, the operator only needs to gently rotate the base to accurately and tightly fit the sensor shell, ensuring that the sensor remains motionless throughout the measurement process. The inner cavity can accommodate pressure sensors of different brands, making it more flexible in its compatibility. The replacement and installation process is simple, improving the efficiency of the test.

[0029] Furthermore, in this invention, both the upper cover and the base are made of polytetrafluoroethylene, which enables non-rigid contact between the upper cover and the base, effectively reducing the interference of vibration on the sensor output signal. Attached Figure Description

[0030] 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.

[0031] Figure 1 This is an assembly diagram of the sensor mounting fixture for measuring static explosion shock wave pressure according to this utility model.

[0032] Figure 2 This is a structural diagram of the upper cover of the sensor mounting fixture for measuring static explosion shock wave pressure according to this utility model.

[0033] Figure 3 This invention relates to a sensor mounting fixture for measuring static explosion shock wave pressure. Figure 2 A sectional view along the AA direction.

[0034] Wherein: 1-sensor; 2-fastening nut; 3-base; 4-top cover; 5-base; 6-first outer diameter; 7-second outer diameter; 8-third outer diameter; 9-fourth outer diameter; 10-first cavity; 11-second cavity; 12-third cavity; 13-fourth cavity; 14-fifth cavity. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0037] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0038] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing the 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, and therefore should not be construed as a limitation on the utility model. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0039] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0040] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] The present invention will now be described in further detail with reference to the accompanying drawings:

[0042] See Figures 1 to 3 This utility model discloses a sensor installation fixture for measuring static explosion shock wave pressure. Specifically, it is a sensor installation fixture for measuring static explosion shock wave pressure, which has the characteristics of simple structure, convenient installation, time saving and strong applicability.

[0043] Overall Fixture Structure: This installation fixture is organically composed of three core parts: the base, the top cover, and the base plate. The base is meticulously crafted from a special metal material with ultra-high strength and excellent impact resistance. A high-precision threaded hole is located at the center of the upper surface of the base, specifically for a secure and convenient detachable connection with the top cover.

[0044] Specifically, it includes the following structure:

[0045] Example 1

[0046] This utility model discloses a sensor mounting fixture for measuring static explosion shock wave pressure, including a base 5 and an upper cover 4 connected sequentially from bottom to top. The upper cover 4 is fitted over the outside of the base 5 and is connected to the base 3. The upper end of the upper cover 4 is flush with the upper end of the base 3. Corresponding cavities are opened inside the base 5 and the upper cover 4, and the cavities are used to install the sensor 1.

[0047] Example 2

[0048] This utility model discloses a sensor mounting fixture for measuring static explosion shock wave pressure, comprising a base 5 and a top cover 4 connected sequentially from bottom to top. The top cover 4 is fitted over the outer side of the base 5 and is connected to a base 3, with the upper end of the top cover 4 flush with the upper end of the base 3. Corresponding cavities are formed inside the base 5 and the top cover 4, which are used to install a sensor 1. The outer wall of the base 5 includes a first outer diameter 6 and a second outer diameter 7 connected sequentially from bottom to top, with the diameter of the first outer diameter 6 being larger than the diameter of the second outer diameter 7. The top cover 4 is fitted over the outer side of the second outer diameter 7. The base 5 has a through hole along its axis, with the inner hole being stepped. A first cavity 10 and a second cavity 11 are formed sequentially inside the base 5, with the diameter of the first cavity 10 being smaller than the diameter of the second cavity 11.

[0049] Furthermore, in this embodiment of the present invention, the base 5 is a cylindrical structure, and the outer wall of the second outer diameter 7 is provided with an external thread, which is fixedly connected to the internal thread of the third cavity 12. The second outer diameter 7 and the third cavity 12 have the same axial length.

[0050] Furthermore, in this embodiment of the invention, the inner diameter of the second cavity 11 is the same as the inner diameter of the fourth cavity 13. Once the sensor is installed, the operator only needs to gently rotate the base to ensure precise and tight fit with the sensor housing, guaranteeing that the sensor remains completely still throughout the measurement process.

[0051] Furthermore, in this embodiment of the present invention, the outer wall of the first outer diameter 6 is also provided with a gripping surface.

[0052] Furthermore, in this embodiment of the present invention, the upper cover 4 is a columnar structure.

[0053] Furthermore, in this embodiment of the invention, the outer diameter of the upper cover 4 is a two-step structure. The outer wall of the upper cover 4 includes a third outer diameter 8 and a fourth outer diameter 9 connected sequentially from bottom to top. The diameter of the third outer diameter 8 is larger than the diameter of the fourth outer diameter 9. The external thread on the outer wall of the third outer diameter 8 is tightly connected to the threaded hole on the base 3, and the length of the external thread is consistent with the length of the threaded hole on the base 3, which allows the sensor sensitive surface to be in the same horizontal plane as the upper surface of the base. The outer wall of the fourth outer diameter 9 is provided with a symmetrical gripping plane.

[0054] Furthermore, in this embodiment of the present invention, the upper cover 4 is provided with an installation through hole adapted to the shape of various mainstream sensors. The inner cavity of the through hole is in the shape of a three-level stepped structure, including a third cavity 12, a fourth cavity 13 and a fifth cavity 14 that are connected in sequence.

[0055] The inner diameter of the third cavity 12 is larger than the inner diameter of the fourth cavity 13, and the inner diameter of the fourth cavity 13 is larger than the inner diameter of the fifth cavity 14.

[0056] Furthermore, in this embodiment of the present invention, the third cavity 12 is provided with an internal thread, which is fixedly connected to the external thread of the second outer diameter 7.

[0057] Furthermore, in this embodiment of the present invention, the length of the fifth cavity 14 is consistent with the length from the outer wall protrusion of the sensor to the sensitive surface, and the diameter of the fifth cavity 14 is consistent with the diameter of the sensitive surface of the sensor.

[0058] Furthermore, in this embodiment of the invention, the diameter of the fourth cavity 13 is larger than the diameter of the sensor fastening nut 2, and the sensor 1 is inserted from the third cavity 12 until the sensitive surface is on the same horizontal plane as the outer surface of the upper cover 4. The fastening nut 2 is sleeved on the outside of the sensor 1.

[0059] Furthermore, in this embodiment of the present invention, when the upper cover 4 is connected to the base 5, the sum of the length of the third cavity 12, the length of the fourth cavity 13 and the length of the first cavity 10 cannot exceed the distance from the outer wall protrusion of the sensor to the signal output end, so as to ensure the normal installation of the signal line.

[0060] Example 3

[0061] This utility model discloses a sensor mounting fixture for measuring static explosion shock wave pressure, comprising a base 5 and an upper cover 4 connected sequentially from bottom to top. The upper cover 4 is fitted over the outer side of the base 5 and connected to a base 3, with the upper end of the upper cover 4 flush with the upper end of the base 3. Corresponding cavities are formed inside the base 5 and the upper cover 4 for mounting a sensor 1. Further, in this utility model embodiment, the base 3 is made of high-strength steel. Further, in this utility model embodiment, the upper cover 4 and the base 5 are made of polytetrafluoroethylene (PTFE), which allows for non-rigid contact between the upper cover 4 and the base 5, effectively reducing vibration interference to the sensor output signal.

[0062] This utility model embodiment adopts a separate design of base, top cover and base, and adopts an innovative quick disassembly and assembly method between each component. The installation process is simple and clear. Operators can quickly get started without complicated training and efficiently complete the installation and debugging of sensors, which greatly saves manpower and time costs and significantly improves test efficiency.

[0063] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A sensor mounting tool for static blast shockwave pressure measurement, characterised in that, It includes a base (5) and a top cover (4) connected from bottom to top. The top cover (4) is fitted over the outside of the base (5). The top cover (4) is connected to the base (3). The upper end of the top cover (4) is flush with the upper end of the base (3). The base (5) and the top cover (4) have corresponding cavities inside, which are used to install the sensor (1).

2. A sensor mounting tool for static blast shockwave pressure measurement according to claim 1, wherein, The outer wall of the base (5) includes a first outer diameter (6) and a second outer diameter (7) connected sequentially from bottom to top, wherein the diameter of the first outer diameter (6) is larger than the diameter of the second outer diameter (7); The upper cover (4) is fitted onto the outside of the second outer diameter (7); The base (5) has a first cavity (10) and a second cavity (11) that pass through it sequentially. The diameter of the first cavity (10) is smaller than the diameter of the second cavity (11).

3. The sensor mounting fixture for measuring static explosion shock wave pressure according to claim 2, characterized in that, The outer wall of the upper cover (4) includes a third outer diameter (8) and a fourth outer diameter (9) connected sequentially from bottom to top, wherein the diameter of the third outer diameter (8) is larger than the diameter of the fourth outer diameter (9); The upper cover (4) has a third cavity (12), a fourth cavity (13) and a fifth cavity (14) that are sequentially connected inside; The third cavity (12) is correspondingly connected to the second outer diameter (7); The fourth cavity (13) has the same inner diameter as the second cavity (11); The inner diameter of the fifth cavity (14) is smaller than the inner diameter of the fourth cavity (13); The fourth outer diameter (9) is connected to the base (3); The first cavity (10), the second cavity (11), the third cavity (12), the fourth cavity (13) and the fifth cavity (14) are connected sequentially from bottom to top.

4. A sensor mounting tool for static blast shockwave pressure measurement according to claim 3, wherein, The lower end of the third outer diameter (8) abuts against the upper end of the first outer diameter (6).

5. A sensor mounting tool for static blast shock wave pressure measurement according to claim 3, wherein The upper end of the second outer diameter (7) abuts against the upper end of the third cavity (12).

6. A sensor mounting tool for static blast shock wave pressure measurement according to claim 3, wherein It also includes a fastening nut (2), which is disposed inside the fourth cavity (13) and the second cavity (11); The fastening nut (2) is used to fix the sensor (1).

7. A sensor mounting tool for static blast shockwave pressure measurement according to claim 5, wherein, The upper end of the sensor (1) body abuts against the upper end of the fourth cavity (13); The leads of the sensor (1) are connected to the outside through the fifth cavity (14) and the first cavity (10).

8. A sensor mounting tool for static blast shockwave pressure measurement according to claim 1, wherein, The top cover (4) and the base (3) are connected by threads.

9. A sensor mounting tool for static blast shockwave pressure measurement according to claim 1, wherein, The material of the top cover (4) and the base (5) is polytetrafluoroethylene.

10. The sensor mounting tool for static explosion shock wave pressure measurement according to claim 1, characterized by, The base (3) is made of steel.

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