A low-field sample detection platform

Abstract

This utility model discloses a weak magnetic field sample detection platform, comprising: a base, with four sets of telescopic rods vertically fixedly connected to the top surface of the base, the four sets of telescopic rods being symmetrically arranged in pairs on the top surface of the base; a lifting platform, fixedly connected to the top surface of the base, with mounting plates symmetrically fixedly connected to the bottom surface of the lifting platform, the mounting plates having Z-shaped grooves; a lifting assembly, including a slide table slidably connected to the top surface of the base, a linear motion assembly mounted on the base for controlling the movement of the slide table, the slide table being positioned between the two sets of mounting plates, a sliding shaft rotatably connected to the slide table, the sliding shaft being slidably connected within the Z-shaped grooves; and two sets of positioning clamps, symmetrically fixed to the top surface of the lifting platform. This utility model allows for continuous adjustment of the lifting platform height by adjusting the sliding distance, adapting to samples of different sizes or detection height requirements, thus expanding the applicability of the lifting device.

Description

Technical Field

[0001] This utility model relates to the field of weak magnetic field sample detection technology, and in particular to a weak magnetic field sample detection platform. Background Technology

[0002] In magnetic field research and applications, the measured value of magnetic field strength is closely related to the location of the sample measurement point. Especially in the field of weak magnetic field detection, extremely high measurement accuracy is required. Not only must the sample be precisely positioned to ensure the measurement point is in the expected location to obtain accurate and reliable magnetic field data, but the interference of external magnetic fields on the detection results must also be fully considered. External magnetic fields may originate from surrounding electronic equipment, the natural Earth's magnetic field, or other uncertain factors; even slight deviations can lead to significant errors in the measurement results, affecting the accuracy and reliability of the research.

[0003] The existing weak magnetic field sample detection platform has poor adjustment flexibility, therefore, this utility model provides a weak magnetic field sample detection platform. Utility Model Content

[0004] The purpose of this invention is to provide a weak magnetic field sample detection platform to solve the problems existing in the prior art.

[0005] To achieve the above objectives, this utility model provides the following solution: This utility model provides a weak magnetic field sample detection platform, comprising:

[0006] The base has four sets of telescopic rods vertically fixedly connected to its top surface, and the four sets of telescopic rods are arranged symmetrically in pairs on the top surface of the base.

[0007] A lifting platform is fixedly connected to the top surface of the base, and a mounting plate is symmetrically fixedly connected to the bottom surface of the lifting platform. A Z-shaped groove is provided on the mounting plate.

[0008] A lifting assembly includes a slide table slidably connected to the top surface of the base. A linear motion assembly is installed on the base to control the movement of the slide table. The slide table is disposed between two sets of mounting plates. A sliding shaft is rotatably connected to the slide table and is slidably connected to the Z-shaped groove.

[0009] The positioning fixture is provided in two sets. The two sets of positioning fixtures are symmetrically connected to the top surface of the lifting platform through a rotary drive assembly. The two sets of positioning fixtures are arranged correspondingly, and the two ends of the sample to be tested are respectively fixed on the positioning fixtures.

[0010] According to the weak magnetic field sample detection platform provided by this utility model, the linear motion component includes two sets of fixed seats, which are symmetrically fixedly connected to the top surface of the base. A screw is provided between the two sets of fixed seats, and both ends of the screw are rotatably connected to the fixed seats. The screw passes through the slide and is threadedly connected to the slide. A knob is fixed to one end of the screw.

[0011] According to the weak magnetic field sample detection platform provided by this utility model, the positioning fixture includes a vertical plate and an adjusting nut. The vertical plate is vertically fixedly connected to the top surface of the lifting platform. A through hole is opened at the center of the vertical plate. Several sets of sliding grooves are opened on one side of the vertical plate. The sliding grooves communicate with the through hole. A slider is slidably connected in each sliding groove. A wedge is fixedly connected to one side of the slider. The cross-sectional shape of the wedge is a right trapezoid. The inner hole of the adjusting nut is set as a conical structure. The inclined surface of the wedge is threadedly engaged with the inner hole of the adjusting nut. An elastic reset member is provided between the slider and the end of the sliding groove.

[0012] According to the weak magnetic field sample detection platform provided by this utility model, the elastic reset component includes a spring, and the spring is fixed in the slide groove.

[0013] According to the weak magnetic field sample detection platform provided by this utility model, the top surface of the base is fixedly connected to a slide rail, and the slide table is slidably connected to the slide rail.

[0014] According to the weak magnetic field sample detection platform provided by this utility model, the telescopic rod includes a guide rod and a guide tube. The guide rod is inserted into the guide tube and is vertically fixedly connected to the bottom surface of the lifting platform. The guide tube is vertically fixedly connected to the top surface of the base.

[0015] According to the weak magnetic field sample detection platform provided by this utility model, the driving component includes a support base, the upright plate is rotatably connected to the support base, the support base has an installation cavity, a driving gear is rotatably connected to the installation cavity, the outer wall of the upright plate has a tooth groove, the driving gear meshes with the tooth groove, a driving handle is rotatably connected to the support base, and the driving handle is fixedly connected to the gear.

[0016] The present invention discloses the following technical effects:

[0017] 1) This utility model utilizes the cooperation of Z-shaped groove and sliding shaft to convert the linear motion of the slide table into the lifting motion of the lifting table. With the help of linear movement component, the height can be precisely adjusted; four sets of symmetrical telescopic rods provide stable guidance, prevent the lifting table from tilting, ensure the accuracy of sample position, and are suitable for the high stability requirements of weak magnetic field detection.

[0018] 2) Two sets of symmetrical positioning fixtures are arranged to securely hold both ends of the sample, prevent sample displacement during the test, and ensure the accuracy of the test data.

[0019] 3) The lifting component achieves lifting through mechanical transmission, eliminating the need for complex hydraulic or pneumatic systems and featuring a compact structure; the linear motion component drives the slide table to complete height adjustment, making operation convenient and easy to automate.

[0020] 4) The height of the lifting platform can be continuously adjusted by adjusting the sliding distance, which can adapt to samples of different sizes or detection height requirements and improve the applicability of the device. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the weak magnetic field sample detection platform of this utility model.

[0023] The components are as follows: 1. Base; 2. Lifting platform; 3. Mounting plate; 4. Z-slot; 5. Slide table; 6. Sliding shaft; 7. Fixed seat; 8. Screw; 9. Knob; 10. Adjusting nut; 11. Vertical plate; 12. Through hole; 13. Slider; 14. Wedge; 15. Spring; 16. Slide rail; 17. Guide rod; 18. Guide tube; 19. Support seat; 20. Drive gear; 21. Drive handle. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Reference Figure 1 This utility model provides a weak magnetic field sample detection platform, comprising:

[0027] Base 1, with four sets of telescopic rods vertically fixed to the top surface of base 1, the four sets of telescopic rods being symmetrically arranged in pairs on the top surface of base 1;

[0028] Lifting platform 2 is fixedly connected to the top surface of base 1. The bottom surface of lifting platform 2 is symmetrically fixedly connected to mounting plate 3, and Z-shaped groove 4 is provided on mounting plate 3.

[0029] The lifting assembly includes a slide 5 slidably connected to the top surface of the base 1. A linear motion assembly is installed on the base 1 to control the movement of the slide 5. The slide 5 is located between two sets of mounting plates 3. A sliding shaft 6 is rotatably connected to the slide 5 and is slidably connected in the Z-shaped groove 4.

[0030] The positioning fixtures are provided in two sets. The two sets of positioning fixtures are symmetrically fixed on the top surface of the lifting platform 2. The two sets of positioning fixtures are arranged correspondingly, and the two ends of the sample to be tested are fixed on the positioning fixtures respectively.

[0031] In operation, the sample to be tested is fixed by two sets of symmetrically arranged positioning clamps. Both ends of the sample are respectively inserted into or fixed in the two sets of corresponding positioning clamps, ensuring the sample's stable position during testing and preventing shaking. A linear motion component drives the slide table 5 to move linearly on the top surface of the base 1. The sliding shaft 6 on the slide table 5 moves with the slide table 5 and simultaneously slides within the Z-shaped groove of the mounting plate 3 on the bottom surface of the lifting platform 2. The special structure of the Z-shaped groove converts the linear motion of the slide table 5 into the lifting motion of the lifting platform 2. Four sets of vertical telescopic rods are connected to the lifting platform 2 to ensure that the lifting platform 2 remains horizontally stable during lifting and preventing deviation. Once the lifting platform 2 is adjusted to the target height by the lifting component, the sample to be tested is in the preset testing position, allowing for weak magnetic field related testing in conjunction with external testing equipment. After testing, the linear motion component reverses the direction of the slide table 5, and the lifting platform 2 descends through the cooperation of the sliding shaft 6 and the Z-shaped groove, allowing the positioning clamps to be released and the sample to be removed.

[0032] Further optimization of the scheme: the linear motion component includes two sets of fixed seats 7, which are symmetrically fixedly connected to the top surface of the base 1. A screw 8 is provided between the two sets of fixed seats 7. The two ends of the screw 8 are rotatably connected to the fixed seats 7 respectively. The screw 8 passes through the slide table 5 and is threadedly connected to the slide table 5. A knob 9 is fixed to one end of the screw 8.

[0033] Rotating the knob 9 drives the screw 8 to rotate, causing the slide 5, which is threadedly connected to the screw 8, to move linearly along the slide rail 16 of the base 1. The screw 8 is supported at both ends by the fixed seats 7, and with the guiding effect of the slide rail 16, the rotational motion is precisely converted into the horizontal linear motion of the slide 5. Its core advantage lies in the self-locking characteristic of the screw 8 drive (requires matching screw pitch), which ensures the stability of the slide 5's position and prevents displacement due to external forces during the detection process. The knob 9 allows for manual adjustment in conjunction with the high-precision screw 8, enabling precise control of the height of the lifting platform 2. This design is suitable for weak magnetic field detection scenarios requiring high positioning accuracy, and features a simple structure and convenient operation.

[0034] Further optimization of the scheme: the positioning fixture includes a vertical plate 11 and an adjusting nut 10. The vertical plate 11 is vertically fixed to the top surface of the lifting platform 2. A through hole 12 is opened at the center of the vertical plate 11. Several sets of sliding grooves are opened on one side of the vertical plate 11. The sliding grooves are connected to the through hole 12. A slider 13 is slidably connected in the sliding groove. A wedge 14 is fixedly connected to one side of the slider 13. The cross-sectional shape of the wedge 14 is a right trapezoid. The inner hole of the adjusting nut 10 is set as a conical structure. The inclined surface of the wedge 14 is threadedly engaged with the inner hole of the adjusting nut 10. An elastic reset element is provided between the slider 13 and the end of the sliding groove.

[0035] The positioning fixture employs a "wedge 14-elastic reset" clamping mechanism. Sample fixation is achieved through the cooperation of the sliding groove on the upright plate 11, the slider 13, the wedge 14, and the adjusting nut 10. When the adjusting nut 10 is rotated, its conical inner hole pushes the wedge 14 to slide along the inclined plane, causing the slider 13 to clamp the sample passing through the through hole 12. The spring 15 provides elastic reset force within the sliding groove. This design allows for multi-point synchronous clamping of the sample via multiple symmetrically arranged wedges 14 (e.g., vertically or horizontally). The elastic deformation of the spring 15 adapts to minor deviations in sample size, avoiding sample damage caused by rigid clamping. Simultaneously, the self-locking angle design of the wedge 14's inclined plane (inclination angle less than the friction angle) ensures stable clamping force during testing, combining reliability and applicability.

[0036] The solution is further optimized so that the elastic reset component includes a spring 15, which is fixed in the slide groove.

[0037] The elastic reset component employs a spring 15 structure, installed within the groove of the positioning fixture. One end is connected to the slider 13, and the other end is fixed to the end of the groove. When clamping the sample, the spring 15 is compressed, storing elastic potential energy to provide a reset driving force for the wedge 14 and the slider 13. When the adjusting nut 10 is loosened, the spring 15 releases its potential energy, pushing the slider 13 and the wedge 14 away from the sample, thus achieving automatic reset of the fixture. The introduction of the spring 15 gives the clamping mechanism buffering and self-adaptive capabilities, compensating for sample dimensional tolerances and preventing sample deformation due to excessive force during clamping, thereby improving the versatility and reliability of the fixture.

[0038] In a further optimized design, a slide rail 16 is fixedly connected to the top surface of the base 1, and the slide table 5 is slidably connected to the slide rail 16.

[0039] A linear slide rail 16 is fixed to the top surface of the base 1. The slide table 5 is slidably connected to the slide rail 16 via a bottom slider 13, and works in conjunction with the screw 8 to guide the linear motion of the slide table 5. The parallel double-rail structure (or single-rail high-precision design) of the slide rail 16 effectively limits the tilting and torsion of the slide table 5, converting sliding friction into rolling friction, reducing motion resistance, and improving the smoothness and accuracy of the slide table 5's movement. This structure, together with the screw 8, forms a force balance, evenly distributes the load, reduces the lateral pressure on the screw 8 bearing, extends the life of mechanical components, and ensures that the slide table 5 moves accurately in the preset direction, providing a basic support for the stable lifting of the lifting platform 2.

[0040] The design is further optimized so that the telescopic rod includes a guide rod 17 and a guide tube 18. The guide rod 17 is inserted into the guide tube 18 and is vertically fixed to the bottom surface of the lifting platform 2. The guide tube 18 is vertically fixed to the top surface of the base 1.

[0041] The telescopic rod adopts a "guide rod 17-guide tube 18" structure. The guide rod 17 is vertically fixed to the bottom surface of the lifting platform 2, and the guide tube 18 is fixed to the top surface of the base 1. The guide rod 17 is inserted into the guide tube 18 to form a sliding pair. Four sets of symmetrically arranged telescopic rods radially constrain the guide rod 17 through the inner wall of the guide tube 18, allowing the lifting platform 2 to move only in the vertical direction, effectively preventing tilting or deflection during the lifting process. The clearance fit and surface treatment of the guide rod 17 and the guide tube 18 ensure low friction and high rigidity vertical movement, forming a stable quadrilateral support structure, improving the anti-tipping ability of the lifting platform 2, and meeting the stringent requirements of weak magnetic field detection for sample position stability.

[0042] The scheme is further optimized. The drive assembly includes a support base 19, with a vertical plate 11 rotatably connected to the support base 19. A mounting cavity is formed within the support base 19, and a drive gear 20 is rotatably connected within the mounting cavity. A toothed groove is formed on the outer wall of the vertical plate 11, and the drive gear 20 meshes with the toothed groove. A drive handle 21 is rotatably connected to the support base 19, and the drive handle 21 is fixedly connected to the gear. The drive handle 21 controls the rotation of the gear, and the meshing of the gear with the toothed groove synchronously drives the vertical plate 11 to rotate.

[0043] It should be noted that all components in this embodiment are made of non-magnetic materials, such as plastic.

[0044] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0045] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A weak magnetic field sample detection platform, characterized in that, include: The base (1) has four sets of telescopic rods vertically fixedly connected to its top surface. The four sets of telescopic rods are arranged symmetrically in pairs on the top surface of the base (1). Lifting platform (2), the lifting platform (2) is fixedly connected to the top surface of the base (1), and the bottom surface of the lifting platform (2) is symmetrically fixedly connected to the mounting plate (3), and the mounting plate (3) is provided with a Z-shaped groove (4); The lifting assembly includes a slide (5) slidably connected to the top surface of the base (1), a linear motion assembly is installed on the base (1), the linear motion assembly is used to control the movement of the slide (5), the slide (5) is disposed between two sets of mounting plates (3), a sliding shaft (6) is rotatably connected to the slide (5), and the sliding shaft (6) is slidably connected in the Z-shaped groove (4); The positioning fixture is provided in two sets. The two sets of positioning fixtures are symmetrically connected to the top surface of the lifting platform (2) through a rotary drive component. The two sets of positioning fixtures are arranged correspondingly, and the two ends of the sample to be tested are fixed on the positioning fixtures respectively.

2. The weak magnetic field sample detection platform according to claim 1, characterized in that: The linear motion assembly includes two sets of fixed seats (7), which are symmetrically fixed to the top surface of the base (1). A screw (8) is provided between the two sets of fixed seats (7). The two ends of the screw (8) are rotatably connected to the fixed seats (7). The screw (8) passes through the slide (5) and is threadedly connected to the slide (5). A knob (9) is fixed to one end of the screw (8).

3. The weak magnetic field sample detection platform according to claim 1, characterized in that: The positioning fixture includes a vertical plate (11) and an adjusting nut (10). The vertical plate (11) is vertically fixed to the top surface of the lifting platform (2). A through hole (12) is provided at the center of the vertical plate (11). Several sets of sliding grooves are provided on one side of the vertical plate (11). The sliding grooves are connected to the through hole (12). A slider (13) is slidably connected in the sliding groove. A wedge (14) is fixedly connected to one side of the slider (13). The cross-sectional shape of the wedge (14) is a right trapezoid. The inner hole of the adjusting nut (10) is set as a conical structure. The inclined surface of the wedge (14) is threadedly engaged with the inner hole of the adjusting nut (10). An elastic reset member is provided between the slider (13) and the end of the sliding groove.

4. The weak magnetic field sample detection platform according to claim 3, characterized in that: The elastic reset member includes a spring (15), which is fixed in the groove.

5. A weak magnetic field sample detection platform according to claim 1, characterized in that: The top surface of the base (1) is fixedly connected to a slide rail (16), and the slide table (5) is slidably connected to the slide rail (16).

6. The weak magnetic field sample detection platform according to claim 1, characterized in that: The telescopic rod includes a guide rod (17) and a guide tube (18). The guide rod (17) is inserted into the guide tube (18). The guide rod (17) is vertically fixed to the bottom surface of the lifting platform (2). The guide tube (18) is vertically fixed to the top surface of the base (1).

7. The weak magnetic field sample detection platform according to claim 3, characterized in that: The drive assembly includes a support base (19), the upright plate (11) is rotatably connected to the support base (19), the support base (19) has an installation cavity, the installation cavity is rotatably connected to a drive gear (20), the outer wall of the upright plate (11) has a tooth groove, the drive gear (20) meshes with the tooth groove, the support base (19) is rotatably connected to a drive handle (21), and the drive handle (21) is fixedly connected to the gear.

Images