Small-size split compact range camera obscura

Abstract

The utility model belongs to the field of antenna test facilities, particularly relates to a small-size split compact range camera obscura, and aims to solve the problems that the existing camera obscura is large in size, inconvenient to transport and heavy in weight, and the relative position of an internal reflecting surface and a feed source is difficult to adjust. Comprising a camera obscura shell and a shielding door arranged on one side of the camera obscura shell, camera obscura components are arranged in the camera obscura shell, and the camera obscura components comprise a left front lower camera obscura component, a left front upper camera obscura component, a left rear upper camera obscura component, a left rear lower camera obscura component, a right rear upper camera obscura component and a right rear lower camera obscura component. According to the camera obscura, a single assembly is adopted for transportation and installation, compared with a traditional camera obscura, the camera obscura is very convenient to transport and install, meanwhile, field debugging is facilitated, and therefore the practical effect of the camera obscura is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to antenna test facility technical field especially relates to a small volume split type compact range dark box. BACKGROUND

[0002] The compact range dark box is a kind of equipment specially used for electromagnetic field test, its design combines the advantages of compact range technology and microwave darkroom, provides a miniaturization, high-precision test environment, mainly used to simulate real electromagnetic environment, compact range is through one or more reflection surfaces, the spherical wave radiated by feed source is changed into plane wave on short distance, to carry out accurate electromagnetic field test to target in short distance, microwave darkroom is reduced background stray level by arranging wave-absorbing material, provides an environment without reflection wave interference for test;

[0003] But conventional dark box volume is larger, transportation is extremely inconvenient, and weight is relatively heavy, and the relative position adjustment of internal reflection surface and feed source is difficult, thus needing a split type structure, compact range dark box can be conveniently disassembled and assembled, and is convenient to carry and transport. UTILITY MODEL CONTENT

[0004] The utility model discloses a kind of small volume split type compact range dark boxes, to solve the problems of the prior art, such as large volume, extremely inconvenient transportation, relatively heavy weight, and the relative position adjustment of internal reflection surface and feed source is difficult.

[0005] To achieve the above object, the utility model adopts the following technical scheme:

[0006] A kind of small volume split type compact range dark box, including dark box shell and the shielding door of setting in dark box shell one side, the inside of dark box shell is provided with dark box component, the dark box component includes left front lower dark box component, left front upper dark box component, left rear upper dark box component, left rear lower dark box component, right rear upper dark box component, right rear lower dark box component, right front upper dark box component, right front lower dark box component and reflection surface mounting, reflection surface and feed source, the reflection surface mounting is installed in the bottom inner wall of left front upper dark box component, left rear upper dark box component, right rear upper dark box component and right front upper dark box component, the reflection surface is installed in the bottom inner wall of reflection surface mounting, the feed source is installed in the one side inner wall of reflection surface mounting.

[0007] In a possible design, the dark box shell is bent by two millimeter thick cold-rolled steel plate.

[0008] In a possible design, the bottom of the left front lower dark box component, the left rear lower dark box component, the right rear lower dark box component and the right front lower dark box component is provided with a pulley.

[0009] In a possible design, the outer wall of the dark box shell is provided with a support mechanism for increasing stability, the support mechanism comprising at least one L-shaped rod and at least one support, one end of the L-shaped rod being fixedly arranged at the bottom of the outer wall of the dark box shell, and the support being sleeved on the outer wall of the other end of the L-shaped rod.

[0010] In a possible design, the support comprises an outer cylinder and an inner cylinder slidingly arranged on the inner wall of the outer cylinder, the bottom of the outer cylinder being fixedly provided with a support plate, and the inner cylinder being sleeved on the outer wall of the L-shaped rod.

[0011] In a possible design, the support further comprises a connecting plate, the inner part of the inner cylinder is fixedly provided with two limiting rods, and the connecting plate is slidingly sleeved on the outer wall of the two limiting rods, the outer wall of the outer cylinder is provided with a sliding hole, one side of the connecting plate is fixedly provided with a pressing plate, and one end of the pressing plate extends to the outside through the sliding hole, one end of the L-shaped rod is provided with a groove, and one end of the connecting plate extends into the groove, the inner wall of the groove is provided with a second insertion hole, one side of the connecting plate is fixedly provided with a second insertion rod, and one end of the second insertion rod is matched with the second insertion hole, the outer walls of the inner cylinder and the outer cylinder are both provided with a first insertion hole, one side of the connecting plate is fixedly provided with a first insertion rod, and the first insertion rod is matched with the two first insertion holes, the outer wall of one of the limiting rods is sleeved with a compression spring, and the two ends of the compression spring are fixedly arranged on the inner wall of one side of the inner cylinder and one side of the connecting plate respectively.

[0012] In the present application, when the dark box needs to be transported, the components of the dark box can be separated and then assembled one by one (left front lower dark box component, left front upper dark box component, left rear upper dark box component, left rear lower dark box component, right rear upper dark box component, right rear lower dark box component, right front upper dark box component, and right front lower dark box component), while the reflecting surface mounting member and the reflecting surface can be pre-adjusted and installed, and then the assembly is installed, and when the internal frame assembly is completed, the dark box shell is installed.

[0013] After being arranged, the support can be placed below the L-shaped rod, then the pressing plate is pressed, the pressing plate drives the connecting plate to move, and then the inner cylinder is moved upward, so that the inner cylinder is sleeved on the outer wall of the L-shaped rod, and the connecting plate in the inner part is inserted into the groove, then the hand is released, the connecting plate is reset by the compression spring, the connecting plate drives the second insertion rod to be inserted into the second insertion hole, the L-shaped rod and the inner cylinder are connected, and at the same time, the connecting plate drives the first insertion rod to be inserted into the two first insertion holes, the inner cylinder and the outer cylinder are connected, so as to form a connection point with the ground, solving the problem that the traditional dark box can be conveniently transported and moved in the later period through the pulley at the bottom, but the stability is general.

[0014] The utility model discloses a small volume split type tight field dark box, through split type, can reach the dark box is divided into multiple components, make the volume and the weight of dark box greatly reduce, structure is simpler, convenient removal and transportation reach,

[0015] The utility model discloses a small volume split type tight field dark box, through support mechanism, can reach the stability of dark box is improved, make dark box not easy to displace in the use, solve traditional in setting up the pulley, although convenient initial and subsequent movement, but only through the self -locking stability of pulley is more general problem, and the support mechanism, structure and operation mode are very simple, and the cost is lower,

[0016] The utility model discloses a small volume split type tight field dark box, through support mechanism, can reach the stability of dark box is improved, make dark box not easy to displace in the use, solve traditional in setting up the pulley, although convenient initial and subsequent movement, but only through the self -locking stability of pulley is more general problem, and the support mechanism, structure and operation mode are very simple, and the cost is lower, BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a main body structure schematic diagram of a small volume split type tight field dark box that the utility model proposes,

[0018] Figure 2 It is an explosion structure schematic diagram of a small volume split type tight field dark box that the utility model proposes,

[0019] Figure 3 It is a three -dimensional structure schematic diagram of a small volume split type tight field dark box support mechanism that the utility model proposes,

[0020] Figure 4 It is a section structure schematic diagram of a small volume split type tight field dark box support mechanism that the utility model proposes.

[0021] In the drawing: 1, shielding door, 2, left front lower dark box part, 3, left front upper dark box part, 4, dark box shell, 5, left rear upper dark box part, 6, left rear lower dark box part, 7, right rear upper dark box part, 8, right rear lower dark box part, 9, right front upper dark box part, 10, right front lower dark box part, 11, reflection surface mounting piece, 12, reflection surface, 13, feed source, 14, L type rod, 15, inner cylinder, 16, outer cylinder, 17, support plate, 18, slide hole, 19, press plate, 20, first jack, 21, first inserting rod, 22, second inserting rod, 23, connecting plate, 24, second jack, 25, recess, 26, limit rod. PREFERRED EMBODIMENT

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0023] Embodiment 1

[0024] With reference to Figures 1-2 A dark box, comprising: a dark box shell 4, and a shielding door 1 is arranged on one side of the dark box shell 4, facilitating maintenance and operation of the inside of the dark box.

[0025] The inside of the dark box is divided into multiple parts, including a left front lower dark box component 2, a left front upper dark box component 3, a left rear upper dark box component 5, a left rear lower dark box component 6, a right rear upper dark box component 7, a right rear lower dark box component 8, a right front upper dark box component 9 and a right front lower dark box component 10. When the dark box needs to be transported, the dark box components can be separated and then spliced together one by one to form the left front lower dark box component 2, the left front upper dark box component 3, the left rear upper dark box component 5, the left rear lower dark box component 6, the right rear upper dark box component 7, the right rear lower dark box component 8, the right front upper dark box component 9 and the right front lower dark box component 10, and the reflector mounting member 11 and the reflector 12 can also be installed in advance, and then the assembly is installed, and when the internal frame assembly is completed, the dark box shell 4 is installed on the outer wall.

[0026] The reflector mounting member 11 is installed on the bottom inner wall of the left front upper dark box component 3, the left rear upper dark box component 5, the right rear upper dark box component 7 and the right front upper dark box component 9. The reflector 12 is installed on the bottom inner wall of the reflector mounting member 11 and is used for reflecting electromagnetic waves to form a compact field. The feed 13 is installed on one side of the inner wall of the reflector mounting member 11 and is used for transmitting or receiving electromagnetic waves.

[0027] The reflector 12 is usually a metal surface (such as a parabolic surface, a hyperbolic surface, etc.) and is designed to reflect electromagnetic waves.

[0028] The feed 13 can be an antenna, a waveguide or other forms of electromagnetic wave transmission devices, and the design depends on the required test frequency and power requirements.

[0029] In order to improve the electromagnetic shielding effect of the dark box, the inside of the left front lower dark box component 2, the left front upper dark box component 3, the left rear upper dark box component 5, the left rear lower dark box component 6, the right rear upper dark box component 7, the right rear lower dark box component 8, the right front upper dark box component 9 and the right front lower dark box component 10 is provided with wave-absorbing material, which can effectively absorb electromagnetic waves and reduce electromagnetic wave reflection and leakage.

[0030] The application can be used in the field of antenna test facilities, and can also be used in other fields applicable to the application.

[0031] Embodiment 2

[0032] With reference to Figures 3-4 On the basis of Embodiment 1, a small volume split compact field dark box is improved and applied to the field of antenna test facilities. In order to improve the stability of the dark box, a support mechanism is arranged on the outer wall of the dark box shell 4. The support mechanism comprises at least one L-shaped rod 14 and at least one support. One end of the L-shaped rod 14 is fixedly arranged at the bottom of the outer wall of the dark box shell 4, and the support is sleeved on the outer wall of the other end of the L-shaped rod 14. The support comprises an outer cylinder 16 and an inner cylinder 15 slidingly arranged on the inner wall of the outer cylinder 16, and the bottom of the outer cylinder 16 is fixedly provided with a support plate 17. The inner cylinder 15 is sleeved on the outer wall of the L-shaped rod 14.

[0033] The support further comprises a connecting plate 23, two limiting rods 26 are fixedly arranged in the inner cylinder 15, and the connecting plate 23 is slidingly sleeved on the outer wall of the two limiting rods 26. The outer wall of the outer cylinder 16 is provided with a sliding hole 18, one side of the connecting plate 23 is fixedly provided with a pressing plate 19, and one end of the pressing plate 19 extends to the outside through the sliding hole 18. One end of the L-shaped rod 14 is provided with a groove 25, and one end of the connecting plate 23 extends into the groove 25. The inner wall of the groove 25 is provided with a No. 2 jack 24, one side of the connecting plate 23 is fixedly provided with a No. 2 insertion rod 22, and one end of the No. 2 insertion rod 22 is matched with the No. 2 jack 24. The outer walls of the inner cylinder 15 and the outer cylinder 16 are provided with a No. 1 jack 20, one side of the connecting plate 23 is fixedly provided with a No. 1 insertion rod 21, and the No. 1 insertion rod 21 is matched with the two No. 1 jacks 20. The outer wall of one of the limiting rods 26 is sleeved with a compression spring, and the two ends of the compression spring are fixedly arranged on one side of the inner wall of the inner cylinder 15 and one side of the connecting plate 23 respectively.

[0034] Specifically, after being placed, the support can be placed below the L-shaped rod 14, then the pressing plate 19 is pressed, the pressing plate 19 drives the connecting plate 23 to move, and then the inner cylinder 15 is moved upward, so that the inner cylinder 15 is sleeved on the outer wall of the L-shaped rod 14, and the connecting plate 23 in the inner part is inserted into the groove 25, then the hand is released, the connecting plate 23 is reset by the compression spring, the connecting plate 23 drives the No. 2 insertion rod 22 to be inserted into the No. 2 jack 24, the L-shaped rod 14 and the inner cylinder 15 are connected, and at the same time the connecting plate 23 also drives the No. 1 insertion rod 21 to be inserted into the two No. 1 jacks 20, the inner cylinder 15 and the outer cylinder 16 are connected, so as to form a connecting point with the ground, thereby increasing the stability of the placement.

[0035] The dark box shell 4 is bent from a two-millimeter-thick cold-rolled steel plate, which ensures the structural strength of the dark box.

[0036] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A small volume split-tight-field dark box, characterized in that, The utility model relates to a shield door (1) and the shield door (1) one side of the dark box shell (4) are arranged, the inside of the dark box shell (4) is provided with dark box parts, and the dark box parts include left front lower dark box part (2), left front upper dark box part (3), left rear upper dark box part (5), left rear lower dark box part (6), right rear upper dark box part (7), right rear lower dark box part (8), right front upper dark box part (9), right front lower dark box part (10) and reflector mounting (11), reflector (12) and feed source (13), the reflector mounting (11) is installed in the bottom inner wall of left front upper dark box part (3), left rear upper dark box part (5), right rear upper dark box part (7) and right front upper dark box part (9), the reflector (12) is installed in the bottom inner wall of reflector mounting (11), and the feed source (13) is installed in the one side inner wall of reflector mounting (11). The dark box shell (4) is bent from a two-millimeter-thick cold-rolled steel plate.

2. A compact split tight-field dark box according to claim 1, wherein, The bottom of each of the left front lower dark box part (2), the left rear lower dark box part (6), the right rear lower dark box part (8), and the right front lower dark box part (10) is provided with a pulley.

3. A compact split tight-field dark box according to claim 1, wherein, The outer wall of the dark box shell (4) is provided with a support mechanism for increasing stability, the support mechanism includes at least one L-shaped rod (14) and at least one support, one end of the L-shaped rod (14) is fixedly arranged at the bottom of the outer wall of the dark box shell (4), and the support is sleeved on the outer wall of the other end of the L-shaped rod (14).

4. A compact split tight-field dark box according to claim 3, wherein, The support includes an outer cylinder (16) and an inner cylinder (15) slidably arranged in the inner wall of the outer cylinder (16), the bottom of the outer cylinder (16) is fixedly provided with a support plate (17), and the inner cylinder (15) is sleeved on the outer wall of the L-shaped rod (14).

5. A compact split tight-field dark box according to claim 4, wherein, The support further includes a connecting plate (23), the inner side of the inner cylinder (15) is fixedly provided with two limiting rods (26), the connecting plate (23) is slidably sleeved on the outer wall of the two limiting rods (26), the outer wall of the outer cylinder (16) is provided with a sliding hole (18), one side of the connecting plate (23) is fixedly provided with a pressing plate (19), one end of the pressing plate (19) extends to the outside through the sliding hole (18), one end of the L-shaped rod (14) is provided with a groove (25), one end of the connecting plate (23) extends into the groove (25), the inner wall of the groove (25) is provided with a No. 2 jack (24), one side of the connecting plate (23) is fixedly provided with a No. 2 insertion rod (22), and one end of the No. 2 insertion rod (22) is matched with the No. 2 jack (24), the outer wall of the inner cylinder (15) and the outer cylinder (16) is provided with a No. 1 jack (20), one side of the connecting plate (23) is fixedly provided with a No. 1 insertion rod (21), and the No. 1 insertion rod (21) is matched with the two No. 1 jacks (20), the outer wall of one of the limiting rods (26) is sleeved with a compression spring, and the two ends of the compression spring are fixedly arranged on the inner wall of the inner cylinder (15) and the outer wall of the connecting plate (23) respectively.

6. A compact split tight-field dark box according to claim 5, wherein, ​

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