A detection tool for functional sand control device
By designing a functional testing fixture for sand filters, the problems of low efficiency and poor accuracy of existing testing methods have been solved. This enables rapid and accurate testing of multiple parts of the sand filter, improving testing efficiency and accuracy, and ensuring the compatibility of the sand filter with supporting equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HONGMAO GIFT HUANGYAN CITY ZHEJIANG PROV
- Filing Date
- 2025-08-27
- Publication Date
- 2026-07-24
AI Technical Summary
Existing sand filter detection methods are inefficient, inaccurate, and highly susceptible to human error, failing to meet the demands for rapid and accurate detection in mass production.
Design a functional testing fixture for sand filters, including a first end face fixing structure, a second end face fixing structure, an end face testing structure, a bottom surface testing structure, and a side surface testing structure. Through the cooperation of these structures, rapid and accurate testing of multiple parts of the sand filter can be achieved.
It enables rapid and accurate inspection of the end face, bottom face, and sides of the sand filter, improving inspection efficiency and accuracy, ensuring the compatibility of the sand filter with supporting equipment, and meeting the needs of rapid and accurate inspection in mass production.
Smart Images
Figure CN224552244U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sand filter testing technology, specifically a testing fixture for functional sand filters. Background Technology
[0002] A sand filter is a device installed on a helicopter engine to effectively intercept sand and dust from the air entering the engine, protecting it. After production, the sand filter needs to be tested for dimensional accuracy and installation compatibility of its end face, bottom face, and sides to ensure installation precision and thus guarantee its sand-proofing effect during actual use.
[0003] Existing testing methods mostly involve manual measurement, which requires measuring multiple dimensions of multiple parts. This results in low overall efficiency, is highly susceptible to human error, and is prone to problems such as poor accuracy and missed detection points. Consequently, these methods cannot meet the needs of rapid and accurate testing in mass production. Utility Model Content
[0004] The purpose of this utility model is to provide a functional testing fixture for sand filters. This functional testing fixture can achieve rapid and accurate testing of the end face, bottom face, and side face of the sand filter, improve testing efficiency and accuracy, ensure the compatibility of the sand filter with supporting equipment, and meet the needs of rapid and accurate testing in mass production.
[0005] The above-mentioned optimized structure of this utility model is achieved through the following technical solution: a functional sand filter testing fixture, including a first end face fixing structure, a second end face fixing structure, and a sand filter is provided between the second end face fixing structure and the first end face fixing structure. An end face detection structure is provided on the same side as the first end face fixing structure and can be inserted and cooperated with the sand guard. A bottom surface detection structure is provided between the first end face fixing structure and the second end face fixing structure, and the sand guard is provided on the bottom surface detection structure.
[0006] In some embodiments, the sand filter includes a front plate; The rear panel is arranged parallel to the front panel; An arc-shaped outer panel, which is connected to both the front panel and the rear panel; A side panel, wherein the side panel is disposed between the front panel and the rear panel; A boss is located on the front plate at the end away from the rear plate.
[0007] In some embodiments, the first end face fixing structure includes two support columns, which are symmetrically arranged. A first fixed arc plate is disposed between the two supporting columns; A fixed arc groove is provided on the first fixed arc plate and is inserted into the arc-shaped outer plate.
[0008] In some embodiments, the first end face fixing structure further includes two support plates, which are symmetrically arranged between the two support columns; Two support grooves are provided on the top of the support plate, and the front plate is supported between the two support grooves.
[0009] In some embodiments, the second end face fixing structure includes two transverse sliding seats, and the two transverse sliding seats are symmetrically arranged; Two second fixed arc plates are respectively disposed on the two transverse sliding seats; Four fixing posts are respectively set on two second fixing arc plates and are all inserted into the rear plate.
[0010] In some embodiments, the end face detection structure includes an end face moving seat, which is laterally disposed between the two support columns; A fixing ring is disposed on the top of the end face movable seat; The detection ring groove is engaged with the boss.
[0011] In some embodiments, the bottom detection structure includes a first support base, which is disposed on one side of the sand filter; The first detection base plate is disposed on the first support base and is attached to the bottom of the arc-shaped outer plate; The second support base is located on the other side of the sand guard; The second detection base plate is mounted on the second support base and is attached to the bottom of the side plate.
[0012] In some embodiments, a side detection structure is further included, the side detection structure including a first side shift seat, the first side shift seat being longitudinally disposed between the first end face fixing structure and the second end face fixing structure; The first detection block is disposed on the first side shift seat and is attached to the side of the arc-shaped outer plate; The second side shifting seat is longitudinally disposed between the first end face fixing structure and the second end face fixing structure; The second detection block is disposed on the second side shift seat and is attached to the side plate.
[0013] In summary, this utility model has the following beneficial effects: This type of functional sand filter testing fixture uses a first end face fixing structure and a second end face fixing structure to fix the sand filter on the testing fixture. The end face testing structure can detect the end face of the sand filter to ensure the sealing performance during installation. The bottom face testing structure can support the sand filter, improve its stability during fixation, and detect the bottom face to ensure that there are no eddies when the airflow passes through the bottom. The side testing structure can detect the side of the sand filter to ensure the accuracy of the sand filter during installation and avoid airflow leakage caused by excessive gaps. The multiple testing structures work together to provide a benchmark for testing, reduce human testing errors, and thus achieve rapid and accurate testing of the end face, bottom face, and sides of the sand filter. This improves testing efficiency and accuracy, ensures the compatibility of the sand filter with supporting equipment, and meets the needs of rapid and accurate testing in mass production. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of the sand detector of this utility model; Figure 2 This is a schematic diagram of the structure of the sand filter of this utility model; Figure 3 This is a structural schematic diagram of the sand guard of this utility model from another perspective; Figure 4 This is a schematic diagram of the structure of the testing fixture of this utility model; Figure 5 This is a structural schematic diagram of the testing fixture of this utility model from another perspective.
[0015] In the diagram: 1. First end face fixing structure; 11. Support column; 12. First fixing arc plate; 13. Fixing arc groove; 14. Support plate; 15. Support groove; 2. Second end face fixing structure; 21. Transverse sliding seat; 22. Second fixing arc plate; 23. Fixing column; 3. Sand preventer; 31. Front plate; 32. Rear plate; 33. Arc-shaped outer plate; 34. Side plate; 35. Boss; 4. End face detection structure; 41. End face moving seat; 42. Fixing ring; 43. Detection ring groove; 5. Bottom face detection structure; 51. First support seat; 52. First detection base plate; 53. Second support seat; 54. Second detection base plate; 6. Side detection structure; 61. First side sliding seat; 62. First detection block; 63. Second side sliding seat; 64. Second detection block. Detailed Implementation
[0016] The technical solutions 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. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0017] refer to Figure 1-5 A functional sand filter testing fixture includes a first end face fixing structure 1, a second end face fixing structure 2, an end face detection structure 4, and a bottom face detection structure 5. The second end face fixing structure 2 is arranged opposite to the first end face fixing structure 1. The sand filter 3 is placed between the second end face fixing structure 2 and the first end face fixing structure 1. The sand filter 3 is positioned and fixed by the combined action of the second end face fixing structure 2 and the first end face fixing structure 1. The end face detection structure 4 is located on the same side as the first end face fixing structure 1 and can be inserted and cooperated with the sand filter 3 to complete the end face detection. The bottom face detection structure 5 is located between the first end face fixing structure 1 and the second end face fixing structure 2. The sand filter 3 is placed on the bottom face detection structure 5, and the bottom face of the sand filter 3 is detected by the bottom face detection structure 5.
[0018] In some embodiments, the sand filter 3 includes a front plate 31, a rear plate 32, an arc-shaped outer plate 33, a side plate 34, and a boss 35. The rear plate 32 is arranged parallel to the front plate 31, serving as the two reference end faces of the sand filter 3. The arc-shaped outer plate 33 connects the front plate 31 and the rear plate 32, forming an arc-shaped protective structure. The side plate 34 is disposed between the front plate 31 and the rear plate 32, assisting in the connection and enhancing the overall structural stability. The boss 35 is disposed at the end of the front plate 31 away from the rear plate 32, allowing it to interface with external equipment. This is prior art and will not be elaborated further here. The front plate 31, rear plate 32, arc-shaped outer plate 33, side plate 34, and boss 35 are interconnected to form the main body of the sand filter 3. By cooperating with various detection structures, multi-part precision detection can be achieved.
[0019] In some embodiments, the first end face fixing structure 1 includes two first support columns 11, a first fixing arc plate 12, and a fixing arc groove 13; the two first support columns 11 are symmetrically arranged to provide support for the first end face fixing structure 1, and the first fixing arc plate 12 is disposed between the two first support columns 11; the fixing arc groove 13 is formed on the first fixing arc plate 12 and is adapted to and inserted into the arc-shaped outer plate 33 of the sand protector 3 to achieve positioning of the arc-shaped outer plate 33.
[0020] In some embodiments, the first end face fixing structure 1 further includes two support plates 14 and two support grooves 15; the two support plates 14 are symmetrically arranged between the two first support columns 11; the two support grooves 15 are respectively opened on the top of the two support plates 14, and the front plate 31 is supported between the two support grooves 15, which can further fix and position the front end of the sand filter 3, and cooperate with the fixing arc groove 13 to improve the fixing accuracy of the front end of the sand filter 3.
[0021] In some embodiments, the second end face fixing structure 2 includes two transverse sliding seats 21, two second fixing arc plates 22, and four fixing columns 23. The two transverse sliding seats 21 are symmetrically arranged, serving as the supporting foundation for the second end face fixing structure 2, and can move laterally. The two second fixing arc plates 22 are respectively disposed on the two transverse sliding seats 21, and can be fixed by L-shaped columns or bolts. They can move laterally along with the transverse sliding seats 21. The specific shape of the second fixing arc plates 22 can be set according to the shape of the rear plate 32. The shape of the two second fixing arc plates 22 can be... Unlike other components, the transverse shift base 21 may include a transverse shift base plate, a transverse shift guide rail, a transverse shift block, a transverse shift limiting plate, and other structures. The transverse shift block can be connected to the second fixed arc plate 22 via a screw. The second fixed arc plate 22 can be moved laterally by the movement of the transverse shift block on the transverse shift guide rail. The transverse shift block can also be equipped with locking structures such as locking bolts to fix the position of the transverse shift block after it moves, thereby achieving position adjustment. The four fixed columns 23 are respectively set on the two second fixed arc plates 22 and are all inserted into the rear plate 32 to achieve positioning and fixing of the rear end of the sand filter 3.
[0022] The two horizontal sliding seats 21 drive the two second fixed arc plates 22 to move laterally, so that the four fixed columns 23 can be inserted and engaged with the rear plate 32 or moved away, thereby realizing the positioning, fixing or releasing of the rear end of the sand filter 3 by the second end face fixing structure 2, which facilitates the fixing of the sand filter 3 on the testing fixture and its removal after testing.
[0023] In some embodiments, the end face detection structure 4 includes an end face moving seat 41, a fixing ring 42, and a detection ring groove 43. The end face moving seat 41 is laterally disposed between two first support columns 11 and can move laterally to facilitate position adjustment. The structure of the end face moving seat 41 is the same as that of the transverse moving seat 21, and will not be described again here. The fixing ring 42 is disposed on the top of the end face moving seat 41. The detection ring groove 43 is formed on the fixing ring 42 and is inserted into the boss 35 of the sand filter 3. When the sand filter 3 is fixed under the action of the first end face fixing structure 1 and the second end face fixing structure 2, the fixing ring 42 can be moved by the end face moving seat 41 to observe the fit between the detection ring groove 43 and the boss 35, so as to detect the dimensional accuracy and adaptability of the boss 35.
[0024] In some embodiments, the bottom detection structure 5 includes a first support base 51, a first detection base plate 52, a second support base 53, and a second detection base plate 54. The first support base 51 is disposed on one side of the sand filter 3 and may include two support rods. The first detection base plate 52 is disposed on the first support base 51 and is in contact with the bottom of the arc-shaped outer plate 33 of the sand filter 3. Through the gap between the bottom of the arc-shaped outer plate 33 and the first detection base plate 52, parameters such as the flatness of the bottom of the arc-shaped outer plate 33 can be detected. The second support base 53 is disposed on the other side of the sand filter 3 and may include two support rods. The second detection base plate 54 is disposed on the second support base 53 and is in contact with the bottom of the side plate 34 of the sand filter 3. Through the gap between the top surface of the second detection base plate 54 and the bottom of the side plate 34, the flatness of the bottom of the side plate 34 can be detected. Thus, the dimensional accuracy and adaptability of the arc-shaped outer plate 33 and the side plate 34 in the sand filter 3 are detected, ensuring that the bottom structure of the sand filter 3 meets the installation requirements.
[0025] In some embodiments, a side detection structure 6 is further included. The side detection structure 6 includes a first side shift seat 61, a first detection block 62, a second side shift seat 63, and a second detection block 64. The first side shift seat 61 and the second side shift seat 63 are both longitudinally arranged between the first end face fixing structure 1 and the second end face fixing structure 2, and can move longitudinally. The structure of the first side shift seat 61 and the second side shift seat 63 is the same as the structure of the transverse shift seat 21, and will not be described again here. The first detection block 62 is arranged on the first side shift seat 61. The end face of the first detection block 62 near the sand filter 3 is parallel to the side of the arc-shaped outer plate 33 and can fit against the side of the arc-shaped outer plate 33. By observing and measuring the gap between the two, the accuracy of the side of the arc-shaped outer plate 33 can be detected. The second detection block 64 is arranged on the second side shift seat 63. The end face of the second detection block 64 near the sand filter 3 is parallel to the outer surface of the side plate 34 and can fit against the side plate 34. By observing and measuring the gap between the two, the accuracy of the side of the side plate 34 can be detected. Simultaneously, through the cooperation of the first end face fixing structure 1, the second end face fixing structure 2, the end face detection structure 4, the bottom surface detection structure 5, and the side surface detection structure 6, the sand filter 3 can be fixed in all directions, thereby simulating the installation scenario of the sand filter 3 and improving the accuracy of the detection of the sand filter 3.
[0026] The specific working principle is as follows: During the specific testing, the sand filter 3 is hoisted to the testing fixture, the arc-shaped outer plate 33 is aligned with the fixed arc groove 13 and inserted, the front plate 31 is stably placed into the two support grooves 15, and the position of the sand filter 3 is adjusted to fix the front end; at the same time, the two second fixed arc plates 22 are moved towards the sand filter 3 by the two transverse sliding seats 21, so that the rear plate 32 is inserted into the multiple fixed columns 23, completing the initial fixation of both ends of the sand filter 3. The hoisting device is then removed, and the arc-shaped outer plate 33 and the rear plate 32 are placed on the bottom testing structure 5 to ensure the stability of the sand filter position during the testing process, providing a basis for accurate testing.
[0027] The end face moving seat 41 drives the fixed ring 42 to move towards the sand filter 3, so that the detection ring groove 43 is inserted into the sand filter boss 35. By observing whether the insertion is smooth and the gap size, it is judged whether the size accuracy and shape tolerance of the boss meet the requirements, and the end face installation adaptability of the sand filter 3 is checked. The first detection base plate 52 is attached to the bottom of the arc-shaped outer plate 33 and the second detection base plate 54 is attached to the bottom of the side plate 34. By measuring the fit between the first detection base plate 52 and the bottom surface of the arc-shaped outer plate 33, and the second detection base plate 54 and the bottom surface of the side plate 34, such as by using a feeler gauge to check the gap and by measuring the accuracy feedback of the detection base plate itself, it is judged whether the flatness of the bottom surface of the sand filter 3 and whether the size meets the design can be determined, thus ensuring the adaptability of the sand filter 3 to the bottom mounting surface.
[0028] The first side shifter 61 and the second side shifter 63 respectively drive the first detection block 62 and the second detection block 64 to move towards the sand filter 3, so that the first detection block 62 and the second detection block 64 are respectively attached to the sides of the arc-shaped outer plate 33 and the side plate 34. Based on the fitting gap and the fit between the detection block and the side, the flatness and dimensional accuracy of the side are checked to ensure that the side structure of the sand filter 3 is qualified and can be smoothly assembled with the supporting equipment. Through the synergistic effect of various structures, the sand filter is inspected from multiple dimensions, quickly discovering structural dimensional deviations and fit problems, providing accurate data for the quality control of the sand filter 3 and subsequent assembly.
[0029] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A testing fixture for a functional sand filter, characterized in that: It includes a first end face fixing structure (1), a second end face fixing structure (2), and a sand guard (3) is provided between the second end face fixing structure (2) and the first end face fixing structure (1); The end face detection structure (4) is located on the same side as the first end face fixing structure (1) and can be plugged into the sand guard (3). Bottom surface detection structure (5) is located between the first end face fixing structure (1) and the second end face fixing structure (2), and the bottom surface detection structure (5) is provided with the sand guard (3).
2. The testing fixture for a functional sand filter according to claim 1, characterized in that: The sand filter (3) includes a front plate (31); The rear plate (32) is arranged parallel to the front plate (31); An arc-shaped outer plate (33) is connected to both the front plate (31) and the rear plate (32). Side plate (34), the side plate (34) is disposed between the front plate (31) and the rear plate (32); A boss (35) is provided at the end of the front plate (31) away from the rear plate (32).
3. The testing fixture for a functional sand filter according to claim 2, characterized in that: The first end face fixing structure (1) includes two support columns (11), which are symmetrically arranged; The first fixed arc plate (12) is disposed between the two support columns (11); Fixed arc groove (13) is provided on the first fixed arc plate (12) and is inserted into the arc-shaped outer plate (33).
4. The testing fixture for a functional sand filter according to claim 3, characterized in that: The first end face fixing structure (1) also includes two support plates (14), which are symmetrically arranged between the two support columns (11); Two support grooves (15) are provided on the top of the support plate (14), and the front plate (31) is supported between the two support grooves (15).
5. The testing fixture for a functional sand filter according to claim 2, characterized in that: The second end face fixing structure (2) includes two transverse sliding seats (21), and the two transverse sliding seats (21) are symmetrically arranged; Two second fixed arc plates (22) are respectively disposed on the two transverse sliding seats (21); Four fixing posts (23) are respectively set on two second fixing arc plates (22) and are all inserted into the rear plate (32).
6. The testing fixture for a functional sand filter according to claim 3, characterized in that: The end face detection structure (4) includes an end face moving seat (41), which is laterally disposed between the two support columns (11); A fixing ring (42) is provided on the top of the end face moving seat (41); The detection ring groove (43) is inserted into the boss (35).
7. The testing fixture for a functional sand filter according to claim 2, characterized in that: The bottom detection structure (5) includes a first support base (51), which is located on one side of the sand protector (3); The first detection base plate (52) is disposed on the first support base (51) and is attached to the bottom of the arc-shaped outer plate (33); The second support (53) is located on the other side of the sand guard (3); The second detection base plate (54) is located on the second support base (53) and is attached to the bottom of the side plate (34).
8. The testing fixture for a functional sand filter according to claim 7, characterized in that: It also includes a side detection structure (6), which includes a first side shift seat (61) and is longitudinally disposed between the first end face fixing structure (1) and the second end face fixing structure (2); The first detection block (62) is disposed on the first side shift seat (61) and attached to the side of the arc-shaped outer plate (33); The second side shift seat (63) is longitudinally disposed between the first end face fixing structure (1) and the second end face fixing structure (2); The second detection block (64) is disposed on the second side shift seat (63) and attached to the side plate (34).