Portable multi-band radio frequency signal generating device

Abstract

The utility model belongs to the technical field of radio-frequency signals, and particularly relates to a portable multi-band radio-frequency signal generating device which comprises a shell, a motor is arranged on the side wall in the shell, a threaded rod is fixed to the output end of the motor, a moving block is in threaded connection with the outer side of the threaded rod, a rack is fixed to one end of the moving block, and the rack is fixed to the other end of the moving block. A gear is arranged at the upper end of the rack, the rack and the gear are connected in a meshed mode, a heat dissipation opening is formed in the upper end of the shell, a rotating rod is fixed in the gear, the two ends of the rotating rod penetrate through the heat dissipation opening and extend into the shell, and the rotating rod is rotationally connected with the shell; and a rotating plate is fixed on the outer side of the rotating rod. The motor can drive the threaded rod to rotate, so that the moving block moves in the axial direction, then the rack is driven to move, then the rotating rod rotates through gear transmission, finally the rotating plate is driven to rotate to open the heat dissipation opening, and the function of heat dissipation or convenient maintenance is achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of radio frequency signal, specifically relates to a portable multi -band radio frequency signal generating device. BACKGROUND

[0002] In the field of communication technology, electronic equipment research and development, wireless sensor network, the portable multi -band radio frequency signal generating device plays a vital role. It can produce radio frequency signals of different frequency bands, and provide basic signal support for various device testing, signal transmission and reception and other work.

[0003] However, the existing portable multi -band radio frequency signal generating device has many problems in actual application. On the one hand, due to its high integration and large power, a large amount of heat will be generated during operation. The traditional heat dissipation is generally to open the heat dissipation hole on the shell, but in order to prevent a large amount of dust from entering the shell, the number of heat dissipation holes is limited, and the auxiliary heat dissipation effect is not ideal, which not only affects the stability and accuracy of the radio frequency signal, but also may shorten the service life of the device. On the other hand, if the internal frequency band radio frequency signal generating device is abnormal and the conventional operation cannot be solved, the whole and the shell need to be disassembled. When disassembling the shell and the internal components, the radio frequency connector, coaxial cable and other key components are easily damaged due to external force pulling, bending and affecting the signal transmission performance. Based on this, the present application file proposes a kind of portable multi -band radio frequency signal generating device to improve the above problems. CONTENT OF THE INVENTION

[0004] The utility model aims at providing a kind of portable multi -band radio frequency signal generating device, can be rotated by motor driving screw rod, make mobile block move along axial, further drive rack to move, again by gear drive make rotating rod rotate, finally drive rotating plate to rotate to open heat dissipation hole, realize the function of heat dissipation or facilitate overhaul.

[0005] The technical scheme adopted by the utility model is as follows:

[0006] A kind of portable multi -band radio frequency signal generating device, including shell, the side wall in the shell is provided with motor, the output of the motor is fixed with screw rod, the outer side of the screw rod is connected with mobile block, one end of the mobile block is fixed with rack, the upper end of the rack is provided with gear, and the rack and gear are engaged and linked, the upper end of the shell is provided with heat dissipation hole, the inside of the gear is fixed with rotating rod, the both ends of the rotating rod are all through heat dissipation hole and extend to the inside of shell, and the rotating rod and shell are rotatably connected, the outer side of the rotating rod is fixed with rotating plate, and the rotating plate and heat dissipation hole are adapted.

[0007] In a preferred scheme, the side wall in the shell is provided with a sliding groove, and the mobile block and the sliding groove are adapted.

[0008] In a preferred embodiment, a support plate is fixed inside the shell and at the lower end of the motor, and a cover is fixed at the upper end of the shell and outside the gear.

[0009] In a preferred embodiment, a fixing frame is fixed inside the shell, and a filter screen is slidingly connected inside the fixing frame.

[0010] In a preferred embodiment, a fixing block is fixed at each side of the upper end of the shell, a limiting rod is slidingly connected inside the fixing block, the lower end of the limiting rod extends into the filter screen, a pressing plate is fixed outside the fixing block and inside the shell, a spring is fixed inside the fixing block and outside the limiting rod, and the spring is located at the upper end of the pressing plate.

[0011] In a preferred embodiment, a plurality of heat dissipation holes are formed at each side of the shell, and the heat dissipation holes are equidistantly arranged.

[0012] The utility model achieves the following technical effects:

[0013] The utility model discloses a device for cooling or maintenance of motor, which comprises a shell, a motor fixed inside the shell, a threaded rod fixed at the output end of the motor, a movable block screw-connected with the threaded rod, a gear fixed at the lower end of the movable block, a gear wheel meshing with the gear, a rotating rod fixed inside the gear wheel, a rotating plate fixed at the outer side of the rotating rod, a limiting rod fixed at the upper end of the rotating plate, a spring fixed at the outer side of the limiting rod and inside the shell, and a filter screen fixed at the lower end of the spring. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the whole structure schematic view of the utility model;

[0015] Figure 2 It is the structure schematic view of the shell inside the utility model;

[0016] Figure 3 It is the structure side view of inside the utility model;

[0017] Figure 4 It is the structure schematic view of the utility model Figure 3 It is the local enlarged schematic view of A place in the utility model;

[0018] Figure 5 It is the structure schematic view of the filter screen and the fixing block of the utility model;

[0019] Figure 6 It is the local enlarged schematic view of B place in the utility model. Figure 1

[0020] In the drawings, the component list represented by each sign is as follows:

[0021] ​10, housing; 11, motor; 12, threaded rod; 13, moving block; 14, rack; 15, gear; 16, heat dissipation opening; 17, rotating rod; 18, rotating plate; 19, chute; 20, support plate; 21, shroud; 22, fixed frame; 23, filter screen; 25, fixed block; 26, limiting rod; 27, pressing plate; 28, spring; 29, heat dissipation hole. DETAILED DESCRIPTION

[0022] In order to make the above objectives, characteristics and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0023] In the following description, a large number of specific details are set forth in order to facilitate a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the spirit of the present application, therefore the present application is not limited to the specific embodiments disclosed below.

[0024] Secondly, "one embodiment" or "embodiment" referred to herein means that a specific feature, structure or characteristic can be included in at least one implementation of the present application. "In a preferred embodiment" appearing in different places in this specification does not mean the same embodiment, nor is it an embodiment that is independent of or mutually exclusive with other embodiments.

[0025] Thirdly, the present application is described in detail in conjunction with the schematic drawings, and in the detailed description of the embodiments of the present application, the cross-sectional view of the device structure is partially enlarged without the general proportion for the convenience of description, and the schematic drawing is only an example, which should not limit the scope of protection of the present application. In addition, the three-dimensional spatial dimensions including length, width and depth should be included in actual manufacture.

[0026] Please refer to the accompanying Figures 1 to 4 As shown in the accompanying drawings, the present application provides a portable multi-band radio frequency signal generating device, which comprises a housing 10, the side wall inside the housing 10 is provided with a motor 11, the output end of the motor 11 is fixed with a threaded rod 12, the outer side of the threaded rod 12 is threadedly connected with a moving block 13, one end of the moving block 13 is fixed with a rack 14, the upper end of the rack 14 is provided with a gear 15, and the rack 14 and the gear 15 are engaged and linked, the upper end of the housing 10 is provided with a heat dissipation opening 16, the inside of the gear 15 is fixed with a rotating rod 17, both ends of the rotating rod 17 penetrate through the heat dissipation opening 16 and extend into the inside of the housing 10, and the rotating rod 17 and the housing 10 are rotationally connected, the outer side of the rotating rod 17 is fixed with a rotating plate 18, and the rotating plate 18 is matched with the heat dissipation opening 16.

[0027] In this embodiment, when the inside of the radio frequency signal generating device needs to be cooled or needs to be overhauled, the motor 11 inside the shell 10 and located at the side wall is started, the output end of the motor 11 drives the threaded rod 12 to rotate, since the threaded rod 12 is threadedly connected with the moving block 13, the moving block 13 will move along the axial direction outside the threaded rod 12, the movement of the moving block 13 can drive the rack 14 fixed at one end of the moving block 13 to move, since the rack 14 is engaged with the gear 15, the rack 14 drives the gear 15 to rotate, the rotating rod 17 fixed inside the gear 15 also rotates, since the two ends of the rotating rod 17 penetrate the heat dissipation opening 16 at the upper end of the shell 10 and the rotating rod 17 is rotationally connected inside the shell 10, the rotating plate 18 fixed outside the rotating rod 17 will rotate around the rotating rod 17, opening the heat dissipation opening 16, realizing the heat dissipation of the inside of the device or facilitating the overhauling of the inside of the radio frequency signal generating device. It should be noted that the motor 11 is electrically connected with the controller inside the portable multi-band radio frequency signal generating device through wires and is powered by the power module inside the portable multi-band radio frequency signal generating device, when the portable multi-band radio frequency signal generating device needs to be cooled, the motor 11 is started by the controller.

[0028] In a preferred embodiment, referring to Figure 4 , the side wall inside the shell 10 is provided with a sliding groove 19, and the moving block 13 is matched with the sliding groove 19.

[0029] In this embodiment, when the motor 11 inside the shell 10 drives the threaded rod 12 to rotate, the moving block 13 threadedly connected with the threaded rod 12 moves, since the sliding groove 19 provided at the side wall inside the shell 10 is matched with the moving block 13, the moving block 13 will slide along the sliding groove 19 during the movement, avoiding the offset or shaking of the moving block 13 during the movement.

[0030] Secondly, referring again to Figure 2 , the lower end of the motor 11 inside the shell 10 is fixed with a support plate 20, and the upper end of the shell 10 and located outside the gear 15 is fixed with a shroud 21.

[0031] In this embodiment, when the portable multi-band radio frequency signal generating device is running, the support plate 20 at the lower end of the motor 11 inside the shell 10 provides stable support for the motor 11, so that the motor 11 remains stable during the process of driving the threaded rod 12 to rotate; at the same time, the shroud 21 at the upper end of the shell 10 and located outside the gear 15 covers the gear 15 and other transmission components, preventing foreign matters from entering and interfering with the engagement transmission between the gear 15 and the rack 14, ensuring that the rotating rod 17 can smoothly rotate under the drive of the gear 15 to drive the rotating plate 18 to open and close the heat dissipation opening 16.

[0032] Thirdly, referring to Figure 2 and Figure 5The inner part of the shell 10 is fixed with a fixing frame 22, and the inner part of the fixing frame 22 is slidably connected with a filter screen 23.

[0033] In this embodiment, during the operation of the portable multi-band radio frequency signal generating device, air enters the device through the heat dissipation holes 16 on the shell 10, and the filter screen 23 slidably connected in the inner part of the fixing frame 22 can filter the entering air. When the filter screen 23 needs to be cleaned or replaced after being used for a period of time, the filter screen 23 can be directly pulled out along the fixing frame 22, and after the operation is completed, the new filter screen 23 or the cleaned filter screen 23 is slid into the installation along the fixing frame 22.

[0034] For further understanding and illustration, taking Figure 5 and Figure 6 for example, both sides of the upper end of the shell 10 are fixed with fixing blocks 25, the inner part of the fixing blocks 25 is slidably connected with limiting rods 26, the lower end of the limiting rods 26 extends into the inner part of the filter screen 23, the outer side of the fixing blocks 25 and located in the inner part of the shell 10 is fixed with a pressing plate 27, the inner part of the fixing blocks 25 and located on the outer side of the limiting rods 26 is fixed with springs 28, and the springs 28 are located on the upper end of the pressing plate 27.

[0035] In this embodiment, when installing the filter screen 23, the limiting rods 26 are pulled upward, the springs 28 are compressed upward on the pressing plate 27, and the lower end of the limiting rods 26 is pulled out from the shell 10. After the filter screen 23 is slid into the predetermined position along the fixing frame 22, the limiting rods 26 are released, the springs 28 restore the deformation to push the limiting rods 26 downward, so that the lower end of the limiting rods 26 is inserted into the inner part of the filter screen 23, thereby stably limiting the filter screen 23 in the fixing frame 22; when disassembling the filter screen 23, the limiting rods 26 are pulled upward again, the springs 28 are compressed, and the lower end of the limiting rods 26 is separated from the filter screen 23, so that the filter screen 23 can be smoothly pulled out.

[0036] In a preferred embodiment, please refer to Figure 1 The two sides of the shell 10 are provided with a plurality of heat dissipation holes 29, and the plurality of heat dissipation holes 29 are equidistantly arranged.

[0037] In this embodiment, the heat generated in the inner part of the portable multi-band radio frequency signal generating device can be discharged through the heat dissipation holes 29, thereby improving the heat dissipation efficiency.

[0038] The working principle of the utility model is as follows:

[0039] When it is needed to dissipate heat or maintain the portable multi-band radio frequency signal generating device, the motor 11 is started to drive the threaded rod 12 to rotate, the moving block 13 is moved along the sliding groove 19, the meshing transmission of the rack 14 and the gear 15 drives the rotating rod 17 to drive the rotating plate 18 to open and close the heat dissipation port 16, active heat dissipation and convenient maintenance are realized; the support plate 20 and the shroud 21 respectively guarantee the stable operation of the motor 11 and the normal transmission of the gear 15 and other components; the filter screen 23 cooperates with the fixed frame 22 to filter air, and the limiting structure composed of the fixed block 25, the limiting rod 26, the pressing plate 27 and the spring 28 realizes the quick disassembly and stable fixation of the filter screen 23; the heat dissipation holes 29 equidistantly arranged on both sides of the shell 10 assist to enhance the heat dissipation effect, and ensure the stable and reliable operation of the radio frequency signal generating device.

[0040] The above only describes the preferred embodiments of the utility model, and it should be noted that those skilled in the art can make some improvements and refinements without departing from the principle of the utility model, and these improvements and refinements should be regarded as the protection scope of the utility model. The structures, devices and operation methods not specifically described and explained in the utility model are implemented according to the conventional means in the field without special description and limitation.

Claims

1. A portable multi-band radio frequency signal generating device comprising a housing (10), characterized in that: The side wall of the shell (10) is provided with a motor (11), the output end of the motor (11) is fixedly connected with a threaded rod (12), the outer side of the threaded rod (12) is threadedly connected with a moving block (13), one end of the moving block (13) is fixedly connected with a rack (14), the upper end of the rack (14) is provided with a gear (15), and the rack (14) and the gear (15) are engaged and linked, the upper end of the shell (10) is provided with a heat dissipation opening (16), the inside of the gear (15) is fixedly connected with a rotating rod (17), both ends of the rotating rod (17) penetrate through the heat dissipation opening (16) and extend into the inside of the shell (10), and the rotating rod (17) and the shell (10) are rotatably connected, the outer side of the rotating rod (17) is fixedly connected with a rotating plate (18), and the rotating plate (18) is matched with the heat dissipation opening (16).

2. The portable multi-band radio frequency signal generator of claim 1, wherein: The side wall of the shell (10) is provided with a sliding groove (19), and the moving block (13) is matched with the sliding groove (19).

3. The portable multi-band radio frequency signal generator of claim 1, wherein: The lower end of the motor (11) in the inside of the shell (10) is fixedly connected with a supporting plate (20), and the upper end of the shell (10) and the outside of the gear (15) are fixedly connected with a protective cover (21).

4. The portable multi-band radio frequency signal generator of claim 1, wherein: The inside of the shell (10) is fixedly connected with a fixing frame (22), and the inside of the fixing frame (22) is slidably connected with a filter screen (23).

5. The portable multi-band radio frequency signal generator of claim 1, wherein: Both sides of the upper end of the shell (10) are fixedly connected with fixed blocks (25), the inside of the fixed blocks (25) is slidably connected with limiting rods (26), the lower end of the limiting rods (26) extends into the inside of the filter screen (23), the outer side of the fixed blocks (25) and the inside of the shell (10) are fixedly connected with pressing plates (27), the inside of the fixed blocks (25) and the outside of the limiting rods (26) are fixedly connected with springs (28), and the springs (28) are located on the upper end of the pressing plates (27).

6. The portable multi-band radio frequency signal generator of claim 1, wherein: A plurality of heat dissipation holes (29) are formed in both sides of the shell (10), and the plurality of heat dissipation holes (29) are equidistantly arranged.

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