Device for automatically collecting and releasing wave-absorbing material
By designing an automatic retracting and releasing absorbing material device, and using the cooperation of the elastic bracket and the spring, the obstacles in the translation process of the absorbing material in the microwave chamber in the prior art are solved, and the automatic retracting and releasing of the absorbing material and the expansion of the application scope are achieved.
Patent Information
- Application Number
- CN202411732176.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-02-28
AI Technical Summary
In the existing microwave dark chamber, the position of the absorbing material is fixed, which causes obstacles to the equipment during the translation process. When the absorbing material is laid away from the translation axis, the absorbing material cannot be absorbed at the translation axis, resulting in difficulty in electromagnetic compatibility testing.
An automatic retracting and retracting absorbing material device is designed, including a pit, a self-resetting mechanism, a guide rail and a support mechanism. Through the cooperation of the elastic bracket and a spring, the automatic retracting and retracting of the absorbing material is achieved, avoiding the obstruction of the absorbing material during the translation process and adapting to pits of different widths.
The automatic retraction and release of the absorbing material during the translation process is realized, which avoids the problem of obstruction of the absorbing material, ensures the smooth progress of the electromagnetic compatibility test, and expands the scope of application of the device.
Smart Images
Figure CN119531511A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of wave absorbing material devices, in particular to an automatic wave absorbing material retracting and releasing device. Background Art
[0002] With the development of electronic technology, microwave darkrooms are understood and applied by more and more people. Microwave darkrooms are mainly used for radiated radio disturbance (EMI) and radiated sensitivity (EMS) measurements. The size of the microwave darkroom and the selection of RF absorbing materials are mainly determined by the dimensions of the equipment under test (EUT) and the test requirements. The indoor material is polyurethane absorbing sponge SA (for high frequency use). In addition, when testing the electromagnetic compatibility of electronic products, ferrite absorbing materials are also used due to the low frequency. The microwave darkroom is to use absorbing materials to create a closed space, so that a pure electromagnetic environment can be created in the darkroom. The radio wave darkroom can provide a "free space" without electromagnetic clutter interference. It is widely used in high-precision and high-efficiency testing of wireless communication products and electronic products such as antennas and radars. The demand in the military and civilian markets is huge. At present, the radio wave darkroom mainly uses a composite absorbing material composed of polyurethane foam absorbing cone and ferrite tile. The effective working frequency band of the polyurethane foam absorbing cone is 1GHz-18GHz, and the effective working frequency band of the ferrite tile is 30MHz-1GH.
[0003] At the long-distance translation axis in the existing darkroom, the position of the absorbing material is fixed, which causes certain obstruction of the absorbing material during the translation of the equipment. When the absorbing material is laid away from the translation axis, the translation axis cannot absorb waves. Therefore, an automatic absorbing material retracting and releasing device is proposed to solve the above-mentioned problem. Summary of the invention
[0004] The technical problem to be solved by the present invention is to provide an automatic device for retracting and releasing absorbing materials in view of the deficiencies in the above-mentioned prior art.
[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: an automatic device for retracting and releasing absorbing materials, comprising a pit, a self-resetting mechanism is arranged on the pit, a guide rail is arranged inside the pit, and a supporting mechanism is arranged inside the pit; The self-resetting mechanism comprises a mounting plate and a bracket, the mounting plate is fixedly connected with a mounting block, the bracket is hinged on the mounting block through a rotating shaft, the bracket is fixedly connected with a wooden board, and the wooden board is bonded with an absorbing material; A tension spring is fixedly connected to the mounting plate, the other end of the tension spring is fixedly connected to the bracket, a limit block is arranged on the mounting block, and an adjustment hole is opened on the limit block.
[0006] Preferably, the mounting plate is fixedly connected to the side wall of the pit, and there are two tension springs, which are respectively fixedly connected to the front end and the rear end of the side of the mounting plate. The setting of the tension springs can avoid the problem of the bracket being unable to automatically return to the zero position due to the excessive weight of the absorbing material.
[0007] Preferably, the limit block is provided with a fixing bolt, the limit block is fixed to the mounting block by the fixing bolt, and the mounting block is provided with a threaded hole suitable for the fixing bolt.
[0008] Preferably, the mounting plate is provided with mounting holes, and the number of the brackets is three, and the three brackets are fixedly connected to the bottom of the wooden board at equal intervals. The setting of the mounting holes can facilitate the mounting plate to be fixed to the pit by bolts.
[0009] Preferably, the guide rail is slidably connected with a translation driving plate, the translation driving plate is fixedly connected with an opening frame, the interior of the pit is fixedly connected with a fixing seat, the guide rail is fixedly connected to the fixing seat, both sides of the opening frame are arc-shaped frames, and the setting of the opening frame can enable the translation driving plate to lift and open the bracket in front of the movement during the movement, and after the absorbing material passes through the opening frame, the slope behind the opening frame can slowly buffer until the bracket reaches the covering position.
[0010] Preferably, a driving motor is fixedly connected to the translation driving plate, a gear is fixedly connected to the output end of the driving motor, a rack is fixedly connected to the guide rail, the gear is meshed with the rack, and the gear can be driven to rotate by starting the driving motor. Since the gear is meshed with the rack, the translation driving plate can be pushed to move when the gear rotates.
[0011] Preferably, the supporting mechanism includes a base plate and a supporting rod, the supporting rod is fixedly connected to the base plate, and the base plate is fixedly connected to the inside of the pit. The arrangement of the supporting mechanism can avoid the situation where the bracket is too heavy to support the load due to the large width of the pit, and the support mechanism can be conveniently applied to pits of different widths.
[0012] Preferably, the upper end of the support rod is fixedly connected to a support plate, and one of the support mechanisms is disposed below each of the mounting plates.
[0013] The present invention adopts the above technical solution to bring the following beneficial effects: 1. The automatic retractable absorbing material device is provided with an elastic bracket on the pit, with a travel range of 0°-90°, and a mechanical limit block as the starting position and the ending position. An opening bracket is provided on the translation driving plate, and the two sides of the opening bracket are arc-shaped brackets. The opening bracket 7 on the forward or backward translation driving plate can open the elastic bracket in front of the movement. After the absorbing material passes through the opening bracket, the slope behind the opening bracket can slowly buffer until the elastic bracket reaches the covering position.
[0014] 2. In the automatic retractable absorbing material device, since the travel range of the elastic bracket is 0°-90°, in order to prevent the elastic bracket from being unable to automatically return to the zero position due to the weight of the absorbing material when the elastic bracket reaches 90° during the translational movement, a tension spring is added to the elastic bracket to avoid this situation, thereby improving the practicability of the device.
[0015] 3. The automatic retractable and extendable absorbing material device can avoid the situation where the bracket is too heavy to support due to the large width of the pit through the setting of the supporting mechanism. It can be conveniently applied to pits of different widths, making the application range of the device wider and further improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the pit structure of the present invention; Figure 3 It is a schematic diagram of the structure of the self-resetting mechanism of the present invention; Figure 4 This is a schematic diagram of the structure of the wooden board of the present invention; Figure 5 This is a schematic diagram of the mounting plate structure of the present invention; Figure 6 This is a schematic diagram of the installation block structure of the present invention; Figure 7 It is a schematic diagram of the supporting mechanism structure of the present invention; Figure 8 It is a schematic diagram of the guide rail structure of the present invention; Fig. 9 It is a schematic diagram of the bottom structure of the guide rail of the present invention.
[0017] In the figure: 1. pit; 2. self-resetting mechanism; 201. mounting plate; 202. mounting block; 203. rotating shaft; 204. bracket; 205. wooden board; 206. absorbing material; 207. tension spring; 208. mounting hole; 209. limit block; 210. adjustment hole; 211. fixing bolt; 3. supporting mechanism; 301. bottom plate; 302. supporting rod; 303. supporting plate; 4. fixing seat; 5. guide rail; 6. translation drive plate; 7. opening frame; 8. driving motor; 9. gear; 10. rack. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0019] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "setting" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or integrally connected or set. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.
[0022] See also Figure 1-6 8-9, an embodiment of the present invention is: an automatic device for retracting and releasing absorbing materials, comprising a pit 1, a self-resetting mechanism 2 is arranged on the pit 1, a guide rail 5 is arranged inside the pit 1, and a supporting mechanism 3 is arranged inside the pit 1; The self-resetting mechanism 2 includes a mounting plate 201 and a bracket 204. The mounting plate 201 is fixedly connected to a mounting block 202. The bracket 204 is hinged to the mounting block 202 via a rotating shaft 203. The bracket 204 is fixedly connected to a wooden board 205. The wooden board 205 is bonded with an absorbing material 206. A tension spring 207 is fixedly connected to the mounting plate 201, and the other end of the tension spring 207 is fixedly connected to the bracket 204. A limit block 209 is arranged on the mounting block 202, and an adjustment hole 210 is opened on the limit block 209. Since the travel range of the elastic bracket 204 is 0°-90°, in the process of translational movement, in order to prevent the elastic bracket 204 from being unable to automatically return to the zero position due to the weight of the absorbing material 206 when the elastic bracket 204 reaches 90°, this situation is avoided by adding a tension spring 207 to the elastic bracket 204, thereby improving the practicality of the device.
[0023] By arranging an elastic bracket 204 on the pit 1, the travel range is 0°-90°, and the mechanical limit block 209 is used as the starting position and the ending position, an opening frame 7 is arranged on the translation driving plate 6, and the two sides of the opening frame 7 are arc frames. The opening frame 7 on the forward or backward translation driving plate 6 can open the elastic bracket 204 in front of the movement. After the absorbing material 206 passes through the opening frame 7, the slope behind the opening frame 7 can slowly buffer until the elastic bracket 204 reaches the covering position.
[0024] The mounting plate 201 is fixedly connected to the side wall of the pit 1, and there are two tension springs 207, which are respectively fixedly connected to the front end and the rear end of the side of the mounting plate 201. The setting of the tension springs 207 can avoid the problem that the weight of the absorbing material 206 is too heavy, resulting in the bracket 204 being unable to automatically return to the zero position.
[0025] The limiting block 209 is provided with a fixing bolt 211 , and the limiting block 209 is fixed to the mounting block 202 via the fixing bolt 211 . The mounting block 202 is provided with a threaded hole suitable for the fixing bolt 211 .
[0026] The mounting plate 201 is provided with mounting holes 208, and there are three brackets 204. The three brackets 204 are fixedly connected to the bottom of the wooden board 205 at equal intervals. The mounting holes 208 can be conveniently provided to fix the mounting plate 201 to the pit 1 by bolts.
[0027] A translation driving plate 6 is slidably connected to the guide rail 5, and an opening frame 7 is fixedly connected to the translation driving plate 6. A fixing seat 4 is fixedly connected to the inside of the pit 1. The guide rail 5 is fixedly connected to the fixing seat 4. Both sides of the opening frame 7 are arc frames. The setting of the opening frame 7 can enable the translation driving plate 6 to lift and open the bracket 204 in front of the movement during the movement. After the absorbing material 206 passes through the opening frame 7, the slope behind the opening frame 7 can slowly buffer until the bracket 204 reaches the covering position.
[0028] A driving motor 8 is fixedly connected to the translation driving plate 6, a gear 9 is fixedly connected to the output end of the driving motor 8, a rack 10 is fixedly connected to the guide rail 5, the gear 9 is meshed with the rack 10, and the gear 9 can be driven to rotate by starting the driving motor 8. Since the gear 9 is meshed with the rack 10, when the gear 9 rotates, the translation driving plate 6 can be pushed to move.
[0029] Working principle: an elastic bracket 204 is arranged on the pit 1 with a travel range of 0°-90°, and a mechanical limit block 209 is used as the starting position and the ending position. An opening frame 7 is arranged on the translation driving plate 6, and the two sides of the opening frame 7 are arc-shaped frames. The opening frame 7 on the forward or backward translation driving plate 6 can open the elastic bracket 204 in front of the movement. After the absorbing material 206 passes through the opening frame 7, the slope behind the opening frame 7 can slowly buffer until the elastic bracket 204 reaches the covering position. Since the travel range of the elastic bracket 204 is 0°-90°, in the process of translation movement, in order to prevent the elastic bracket 204 from automatically returning to the zero position due to the weight of the absorbing material 206 when the elastic bracket 204 reaches 90°, a tension spring 207 is added to the elastic bracket 204 to avoid this situation, thereby improving the practicality of the device.
[0030] See also Figure 1-2 7. On the basis of the above embodiments, in another embodiment of the present invention, the support mechanism 3 includes a base plate 301 and a support rod 302. The support rod 302 is fixedly connected to the base plate 301, and the base plate 301 is fixedly connected to the inside of the pit 1. The arrangement of the support mechanism 3 can avoid the situation where the bracket 204 is too heavy to support the pit 1 due to the large width of the pit 1, and the support mechanism 3 can be conveniently applied to pits 1 of different widths.
[0031] The upper end of the support rod 302 is fixedly connected to a support plate 303 , and a support mechanism 3 is disposed below each mounting plate 201 .
[0032] Working principle: The setting of the supporting mechanism 3 can avoid the situation where the bracket 204 is too heavy to support due to the large width of the pit 1. It can be conveniently applied to pits 1 of different widths, making the application range of the device wider and further improving the practicality of the device.
[0033] The present invention provides an automatic device for retracting and releasing absorbing materials. There are many methods and ways to implement the technical solution. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be considered as the protection scope of the present invention. All components not specified in this embodiment can be implemented using existing technologies.
Claims
1. An automatic device for retracting and releasing absorbing materials, comprising a pit (1), characterized in that: The pit (1) is provided with a self-resetting mechanism (2), a guide rail (5) is provided inside the pit (1), and a supporting mechanism (3) is provided inside the pit (1); The self-resetting mechanism (2) comprises a mounting plate (201) and a bracket (204); the mounting plate (201) is fixedly connected to a mounting block (202); the bracket (204) is hinged to the mounting block (202) via a rotating shaft (203); the bracket (204) is fixedly connected to a wooden board (205); and the wooden board (205) is bonded with an absorbing material (206); A tension spring (207) is fixedly connected to the mounting plate (201), the other end of the tension spring (207) is fixedly connected to the bracket (204), a limit block (209) is provided on the mounting block (202), and an adjustment hole (210) is provided on the limit block (209).
2. The automatic absorbing material retracting and releasing device according to claim 1, characterized in that: The mounting plate (201) is fixedly connected to the side wall of the pit (1), and the number of the tension springs (207) is two, wherein the two tension springs (207) are respectively fixedly connected to the front end and the rear end of the side of the mounting plate (201).
3. The automatic absorbing material retracting and releasing device according to claim 1, characterized in that: The limiting block (209) is provided with a fixing bolt (211), and the limiting block (209) is fixed to the mounting block (202) via the fixing bolt (211). The mounting block (202) is provided with a threaded hole suitable for the fixing bolt (211).
4. The automatic absorbing material retracting and releasing device according to claim 1, characterized in that: The mounting plate (201) is provided with a mounting hole (208), and the number of the brackets (204) is three, wherein the three brackets (204) are fixedly connected to the bottom of the wooden board (205) at equal intervals.
5. The automatic absorbing material retracting and releasing device according to claim 1, characterized in that: The guide rail (5) is slidably connected to a translation drive plate (6), the translation drive plate (6) is fixedly connected to an opening frame (7), the interior of the pit (1) is fixedly connected to a fixing seat (4), and the guide rail (5) is fixedly connected to the fixing seat (4).
6. The automatic absorbing material retracting and releasing device according to claim 5, characterized in that: A driving motor (8) is fixedly connected to the translation driving plate (6), a gear (9) is fixedly connected to the output end of the driving motor (8), a rack (10) is fixedly connected to the guide rail (5), and the gear (9) is meshed with the rack (10).
7. The automatic absorbing material retracting and releasing device according to claim 1, characterized in that: The support mechanism (3) comprises a bottom plate (301) and a support rod (302), wherein the support rod (302) is fixedly connected to the bottom plate (301), and the bottom plate (301) is fixedly connected to the inside of the pit (1).
8. The automatic absorbing material retracting and releasing device according to claim 7, characterized in that: The upper end of the support rod (302) is fixedly connected to a support plate (303), and one support mechanism (3) is provided below each mounting plate (201).