Wave-absorbing door curtain installed in millimeter wave radar anechoic chamber

Abstract

The utility model relates to a wave-absorbing door curtain installed in a millimeter wave radar anechoic chamber, which comprises a wallboard structure, a wave-absorbing sponge layer and wave-absorbing pyramids, the end face of the wallboard structure is provided with the wave-absorbing sponge layer, the wave-absorbing sponge layer is uniformly provided with a plurality of wave-absorbing pyramids, and the wave-absorbing pyramids are arranged in the wallboard structure. A penetrating hole penetrating through the wave-absorbing sponge layer and the wallboard structure is formed in the middle of the wave-absorbing sponge layer and the wallboard structure, a butt joint base is arranged on the upper side of the wallboard structure, the butt joint base is in butt joint with the upper end of the wallboard structure, and two sliding supporting feet are symmetrically arranged at the two ends of the upper side of the butt joint base; two longitudinally-arranged sliding rail structures are arranged on the upper side of the wallboard structure side by side, and the sliding supporting feet are installed in the sliding rail structures in a one-to-one sliding mode. The device has the characteristics of stable operation, improved measurement precision, simplified operation difficulty, saved operation time and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to millimeter wave radar test technical field especially relates to a wave absorbing door curtain installed in millimeter wave radar microwave darkroom. BACKGROUND

[0002] When the conventional millimeter wave radar is tested, the darkroom structure is usually selected, the wave absorbing door curtain for blocking the radar needs to be arranged in the middle of the darkroom during the testing process, the radar to be tested needs to be installed in the other end of the darkroom, the reflecting object to be tested needs to be installed in the other end, the position of the wave absorbing door curtain needs to be moved by the staff during the measurement process, the distance between the wave absorbing door curtain and the radar to be tested needs to be measured again after manual movement, which can cause long measurement time and large measurement error, in order to solve the above problems, the wave absorbing door curtain needs to be reformed. SUMMARY

[0003] The utility model provides a wave absorbing door curtain installed in millimeter wave radar microwave darkroom has stable operation, improves measurement precision, simplifies operation difficulty, saves operation time and the like.

[0004] The utility model discloses a wave absorbing door curtain installed in millimeter wave radar microwave darkroom, including wallboard structure, wave absorbing sponge layer and wave absorbing angle cone, the wallboard structure's end face installs wave absorbing sponge layer, wave absorbing sponge layer evenly is provided with a plurality of wave absorbing angle cone, wave absorbing sponge layer and wallboard structure middle department are provided with the through -hole that both sides pass through, wallboard structure upper side is provided with the butt joint base, the butt joint base and wallboard structure upper end form butt joint, the butt joint base upper side both ends symmetry is provided with two slide feet, wallboard structure upper side is provided with two slide rail structures that are arranged in the longitudinal direction side by side, slide foot one -one slide installation in slide rail structure.

[0005] In the technical scheme, the wallboard structure is made of plastic plate, paper plate or wood plate, which greatly reduces the manufacturing cost of the wallboard structure, and the wallboard structure can be used as a base to facilitate the installation of the wave absorbing sponge layer, the wave absorbing sponge layer with wave absorbing angle cones is installed to block radar waves, the butt joint base is provided to facilitate the installation of the slide feet, the slide rail structure and the slide feet are installed to facilitate the movement of the entire door curtain, which simplifies the operation and saves the operation time.

[0006] The wallboard structure and the butt joint base are connected and fixed through the bolt and the nut structure, which facilitates the overall replacement of the wave absorbing door curtain and improves the operation efficiency.

[0007] As a supplement to the technical scheme, the through -hole is in the shape of rectangle, circle or ellipse, and the formation of the through -hole is selected according to the detection requirement.

[0008] As a supplement to the technical scheme, the front end position between the two sliding feet is provided with a screw rod seat, the rear side of the screw rod seat is provided with a forward main shaft servo motor, a transmission screw rod is arranged between the screw rod seat and the servo motor, the middle part of the docking base is provided with a transmission sliding block connected with the transmission screw rod, the transmission screw rod passes through the transmission sliding block and forms a threaded docking between the transmission sliding block.

[0009] In the technical scheme, the servo motor is arranged to accurately control the rotation number of the transmission screw rod, the rotation number of the transmission screw rod is controlled to obtain the moving distance of the wave-absorbing door curtain, so that the distance between the wave-absorbing door curtain and the radar to be measured is accurately measured, the operation steps are greatly simplified, and the accuracy of the measured data is improved.

[0010] As a supplement to the technical scheme, the lower side of the sliding rail structure is provided with an opening, the middle part of the opening is provided with a limiting boss extending to the middle, the sliding foot extends into the opening, and the upper part of the sliding foot is provided with a clamping groove matched with the limiting boss, and the limiting boss is arranged to stabilize the operation of the sliding foot.

[0011] As a supplement to the technical scheme, the upper and lower sides of the limiting boss are embedded with a row of steel ball structures, the steel ball structures support the upper and lower sidewalls of the clamping groove, and the steel ball structures are arranged to ensure the operation flow degree of the sliding foot.

[0012] Beneficial effects: the wave-absorbing door curtain installed in the millimeter wave radar microwave darkroom, by setting the wallboard structure, the wallboard structure can be used as a base, the installation of the wave-absorbing sponge layer is facilitated, the wave-absorbing sponge layer with wave-absorbing pyramids is installed to block radar waves, the docking base is arranged to facilitate the installation of the sliding foot, the sliding rail structure and the sliding foot are installed to facilitate the movement of the whole door curtain, the operation is simplified, the operation time is saved, and the operation is stable, the measurement accuracy is improved, the operation difficulty is simplified, the operation time is saved, and the like. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is the front view of the utility model;

[0014] Figure 2 is the top view of the utility model;

[0015] Figure 3 is the right view of the utility model;

[0016] Figure 4 is the utility model Figure 1 A local enlarged view in the utility model.

[0017] Illustration: 1, wallboard structure, 2, wave-absorbing sponge layer, 3, wave-absorbing angle cone, 4, through hole, 5, butt base, 6, bolt, 7, sliding foot, 8, sliding rail structure, 9, screw rod base, 10, transmission screw rod, 11, transmission sliding block, 12, servo motor, 13, opening, 14, limiting boss, 15, abutting groove, 16, steel ball structure. DETAILED DESCRIPTION

[0018] The utility model is further described below in combination with specific embodiments. It should be understood that these embodiments are only used for illustrating the utility model and are not used for limiting the scope of the utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0019] The embodiment of the utility model relates to a wave-absorbing door curtain installed in a millimeter wave radar microwave darkroom, such as Figure 1 As shown in 4, including wallboard structure 1, wave-absorbing sponge layer 2 and wave-absorbing angle cone 3, the end face of wallboard structure 1 is installed with wave-absorbing sponge layer 2, wave-absorbing sponge layer 2 is uniformly provided with a plurality of wave-absorbing angle cones 3, wave-absorbing sponge layer 2 and wallboard structure 1 are provided with through hole 4 penetrating both, the upper side of wallboard structure 1 is provided with butt base 5, butt base 5 and the upper end of wallboard structure 1 form butt joint, the upper side of butt base 5 is symmetrically provided with two sliding feet 7, the upper side of wallboard structure 1 is provided with two sliding rail structures 8 arranged in longitudinal direction side by side, and sliding foot 7 is slidingly installed in sliding rail structure 8.

[0020] In the technical solution, wallboard structure 1 is made of plastic plate or paper plate or wood plate, which greatly reduces the manufacturing cost of wallboard structure 1, and wallboard structure 1 can be used as a base to facilitate the installation of wave-absorbing sponge layer 2. Wave-absorbing sponge layer 2 with wave-absorbing angle cone 3 is used to block radar waves, butt base 5 is used to facilitate the installation of sliding foot 7, sliding rail structure 8 and sliding foot 7 are used to facilitate the movement of the whole door curtain, which simplifies the operation and saves the operation time.

[0021] Wallboard structure 1 and butt base 5 are connected and fixed by bolt 6 and nut structure, which facilitates the overall replacement of the wave-absorbing door curtain and improves the operation efficiency.

[0022] As a supplement to the technical solution, the through hole 4 is in the shape of a rectangle, a circle or an ellipse, and the formation of the through hole 4 is selected according to the detection requirements.

[0023] As a supplement to the technical scheme, the front end position between the two sliding feet 7 is provided with a screw rod seat 9, the rear side of the screw rod seat 9 is provided with a main shaft forward servo motor 12, the screw rod seat 9 and the servo motor 12 are provided with a transmission screw rod 10, the middle part of the docking base 5 is provided with a transmission sliding block 11 connected with the transmission screw rod 10, the transmission screw rod 10 passes through the transmission sliding block 11 and forms a threaded docking between the transmission sliding block 11.

[0024] In the technical scheme, the servo motor 12 is used to accurately control the rotation number of the transmission screw rod 10, the rotation number of the transmission screw rod 10 is controlled to obtain the moving distance of the wave-absorbing door curtain, so that the distance between the wave-absorbing door curtain and the radar to be measured is accurately measured, the operation steps are greatly simplified, and the accuracy of the measured data is improved.

[0025] As a supplement to the technical scheme, the lower side of the slide rail structure 8 is provided with an opening 13, the middle part of the opening 13 is provided with a limiting boss 14 extending to the middle, the sliding foot 7 extends into the opening 13, and the upper side of the sliding foot 7 is provided with a matching abutting groove 15, and the limiting boss 14 is used to stabilize the operation of the sliding foot 7.

[0026] As a supplement to the technical scheme, the upper and lower sides of the limiting boss 14 are embedded with a row of steel ball structures 16, the steel ball structures 16 support the upper and lower sidewalls of the abutting groove 15, and the steel ball structures 16 are used to ensure the operation flow degree of the sliding foot 7.

[0027] Embodiment

[0028] When the radar detection is carried out, first, the radar to be measured is placed at the measured position at one end of the darkroom, then the measurement reflecting object is installed at the other end of the darkroom, then the door curtain structure is installed between the two, the wave-absorbing sponge layer 2 faces the radar to be measured, then the test is carried out, the radar wave emitted by the radar passes through the through hole 4, the tester observes the measurement reflecting object displayed on the radar, then the next measurement is carried out, at this time, the servo motor 12 is controlled to rotate through the remote controller, the servo motor 12 drives the transmission screw rod 10 to rotate, the transmission screw rod 10 drives the wave-absorbing door curtain to move, since the rotation number of the servo motor 12 is controllable, the moving distance of the wave-absorbing door curtain is also controllable, the distance between the wave-absorbing door curtain and the radar to be measured is controlled, so that the tester can observe the working state of the radar under different conditions.

[0029] At the same time, when the shape of the through hole 4 needs to be replaced, only the nut and the bolt 6 need to be opened, and the wall plate structure 1 and the wave-absorbing sponge layer 2 assembly with different shapes are replaced, which greatly saves the detection time.

Claims

1. A wave-absorbing door curtain installed in a millimeter wave radar microwave anechoic chamber, characterized in that: The utility model provides wallboard structure (1), wave absorbing sponge layer (2) and wave absorbing angle cone (3), wave absorbing sponge layer (2) is installed on the end surface of wallboard structure (1), wave absorbing sponge layer (2) is evenly provided with a plurality of wave absorbing angle cone (3), wave absorbing sponge layer (2) and wallboard structure (1) middle part are provided with the through hole (4) that passes through both, the upper side of wallboard structure (1) is provided with butt joint base (5), butt joint base (5) and wallboard structure (1) upper end form butt joint, the upper side both ends of butt joint base (5) are provided with two sliding feet (7) symmetrically, the upper side of wallboard structure (1) is provided with two sliding rail structures (8) that are arranged in longitudinal direction side by side, sliding foot (7) is slidably installed in sliding rail structure (8) one by one.

2. The wave-absorbing door curtain installed in the millimeter wave radar microwave anechoic chamber according to claim 1, characterized in that: The through hole (4) is rectangular, circular or oval.

3. The wave-absorbing door curtain installed in the millimeter wave radar microwave anechoic chamber according to claim 1, characterized in that: The front end position between the two sliding feet (7) is provided with a screw rod base (9), the rear side of the screw rod base (9) is provided with a servo motor (12) with a forward spindle, a transmission screw rod (10) is installed between the screw rod base (9) and the servo motor (12), the middle part of the butt joint base (5) is provided with a transmission sliding block (11) connected with the transmission screw rod (10), the transmission screw rod (10) passes through the transmission sliding block (11) and forms a threaded butt joint with the transmission sliding block (11).

4. The wave-absorbing door curtain installed in the millimeter wave radar microwave anechoic chamber according to claim 1, characterized in that: The lower side of the sliding rail structure (8) is provided with an opening (13), the middle part of the opening (13) is provided with a limiting boss (14) extending towards the middle, the sliding foot (7) extends into the opening (13), the upper side of the sliding foot (7) is provided with a lapping groove (15) matched with the limiting boss (14).

5. The wave-absorbing door curtain installed in the millimeter wave radar microwave anechoic chamber according to claim 4, characterized in that: The upper and lower sides of the limiting boss (14) are embedded with a row of steel ball structures (16), the steel ball structures (16) support the upper and lower sidewalls of the lapping groove (15).

Images