CN216905301U

CN216905301U - Protection device for be used for digital broadcast power amplifier main control board

Info

Publication number: CN216905301U
Application number: CN202220677639.3U
Authority: CN
Inventors: 郑碧莲
Original assignee: Guangzhou Kebo Electronics Co ltd
Current assignee: Guangzhou Kebo Electronics Co ltd
Priority date: 2022-03-24
Filing date: 2022-03-24
Publication date: 2022-07-05
Anticipated expiration: 2032-03-24

Abstract

The utility model discloses a protection device for a main control board of a digital broadcast power amplifier, which relates to the technical field of digital broadcasting and comprises a protection shell and a main board, wherein two sides of an inner cavity of the protection shell are respectively provided with a movable sliding table, the inner sides of the two sliding tables are respectively provided with a clamping groove, two ends of the main board are respectively arranged in the two clamping grooves, a pressing plate for pressing the main board is arranged at the top of the main board in the clamping grooves, two sides of the top end of the pressing plate are respectively and fixedly provided with a plurality of abutting springs, and the top ends of the abutting springs are fixedly connected with the sliding tables. The main board clamping device is reasonable in design structure, when the main board needs to be overhauled and maintained, the screw rod is driven to rotate only by screwing the screwing block, the two sliding tables move oppositely to loosen the transverse position of the main board, then the pull rod is pulled upwards to drive the pressing plate to move upwards, the force in the vertical direction of the main board is removed, and then the main board is moved out of the clamping groove, so that the operation is convenient and rapid, and time and labor are saved.

Description

Protection device for be used for digital broadcast power amplifier main control board

Technical Field

The utility model relates to the technical field of digital broadcasting, in particular to a protection device for a main control board of a digital broadcasting power amplifier.

Background

Digital broadcasting refers to the processing of various coding, modulation, transmission, etc. of digitized audio signals, video signals, and various data signals under digital state, and is also a broadcasting technology different from the conventionally known AM and FM, which transmits digital signals through a ground transmitting station to achieve the purpose of broadcasting and data information transmission.

The existing digital broadcasting realizes the transmission of various signals through the main control board, most of the existing digital broadcasting directly fixes the main control board in a protective shell for certain protection, and when the main control board is overhauled or maintained, the main control board is inconvenient to disassemble and assemble, and time and labor are wasted. Therefore, the protection device for the main control board of the digital broadcast power amplifier device is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

One) technical problem to be solved

The utility model aims to make up the defects of the prior art and provides a protection device for a main control board of a digital broadcast power amplifier.

II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: a protective device for a main control board of a digital broadcast power amplifier comprises a protective shell and a main board, wherein two movable sliding tables are respectively arranged on two sides of an inner cavity of the protective shell, clamping grooves are respectively formed in the inner sides of the two sliding tables, two ends of the main board are respectively arranged in the two clamping grooves, a pressing plate for pressing the main board is arranged at the top of the main board in the clamping grooves, a plurality of tightening springs are respectively and fixedly arranged on two sides of the top end of the pressing plate, the top ends of the tightening springs are fixedly connected with the sliding tables, a pull rod is fixedly arranged in the middle of the top end of the pressing plate, the top end of the pull rod penetrates through the sliding tables and is arranged at the top of the sliding tables in a sliding manner, heat dissipation plates are respectively arranged at the top of two sides of the protective shell, an inverted T-shaped limiting clamping block is fixedly arranged on the inner sides of the heat dissipation plates, and is matched with and slidably arranged in a limiting groove formed in the protective shell, the top end of the protective shell is provided with a cover plate.

Furthermore, the two sliding tables are internally inserted with the same screw rod, external threads with opposite rotation directions are respectively arranged on the outer parts of the two ends of the screw rod, and the two sliding tables are respectively in threaded connection with the screw rod through the external threads with the opposite rotation directions.

Furthermore, the two ends of the screw rod are respectively rotatably connected with the inner wall of the protective shell through bearings, and one end of the screw rod penetrates through the protective shell to be fixedly provided with a screwing block.

Further, the both sides of lead screw all are provided with the slide bar, two the slide bar all with two slip table sliding connection, just the both ends of slide bar all with the inner wall fixed connection of protecting crust.

Furthermore, one end of the cover plate is rotatably connected with the protective shell, a right-angle groove is formed in the inner side of the other end of the cover plate, and a cushion block is arranged on the protective shell and corresponds to the right-angle groove.

Furthermore, the cover plate is fixedly connected with the cushion block through a fixing screw, and a lifting handle is fixedly arranged on one side, close to the cushion block, of the top end of the cover plate.

Furthermore, a flexible rubber pad is bonded on the inner wall of the clamping groove.

Thirdly), the beneficial effects are as follows:

compared with the prior art, the protection device for the main control board of the digital broadcast power amplifier device has the following beneficial effects: when the mainboard needs to be overhauled and maintained, only the screwing block needs to be screwed to drive the screw rod to rotate, so that the two sliding tables move oppositely to loosen the transverse position of the mainboard, then the pull rod is pulled upwards to drive the pressing plate to move upwards, the force in the vertical direction of the mainboard is removed, then the mainboard is moved out of the clamping grooves, when the mainboard is installed, the pull rod is pulled to drive the pressing plate to move upwards, the mainboard is directly placed in the two clamping grooves, the screwing block is screwed to drive the screw rod to rotate, the screw rod rotates to drive the two sliding tables to move oppositely, the mainboard with different sizes can be clamped and fixed through the two clamping grooves, then the acting force of the pull rod is loosened, the mainboard can be further limited and fixed through the elastic action of the abutting spring, the disassembling and installing processes are convenient and rapid to operate, and time and labor are saved.

Drawings

FIG. 1 is a schematic view of the internal structure of the protective shell according to the present invention;

FIG. 2 is a schematic view of a connection structure between a motherboard and a card slot according to the present invention;

FIG. 3 is a schematic view of a connection structure of a sliding table and a screw rod according to the present invention;

FIG. 4 is a schematic view of a connection structure of a pressing plate and a pull rod according to the present invention;

FIG. 5 is a schematic structural diagram of the protective housing of the present invention when the cover is closed.

In the figure: 1. a protective shell; 2. a main board; 3. a sliding table; 4. a card slot; 5. the spring is tightly propped; 6. a pull rod; 7. a heat dissipation plate; 8. a limiting clamping block; 9. a limiting groove; 10. a cover plate; 11. a screw rod; 12. screwing blocks; 13. a slide bar; 14. a right-angle groove; 15. cushion blocks; 16. and (7) pressing a plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 5, the present invention provides a technical solution: a protective device for a main control board of a digital broadcast power amplifier comprises a protective shell 1 and a main board 2, wherein two movable sliding tables 3 are respectively arranged on two sides of an inner cavity of the protective shell 1, clamping grooves 4 are respectively arranged on the inner sides of the two sliding tables 3, two ends of the main board 2 are respectively arranged in the two clamping grooves 4, a pressing plate 16 for pressing the main board 2 is arranged at the top of the main board 2 in the clamping grooves 4, a plurality of tightening springs 5 are respectively and fixedly arranged on two sides of the top end of the pressing plate 16, the top ends of the tightening springs 5 are fixedly connected with the sliding tables 3, a pull rod 6 is fixedly arranged in the middle of the top end of the pressing plate 16, the top end of the pull rod 6 penetrates through the sliding tables 3 and is arranged at the top of the sliding tables 3, heat dissipation plates 7 are respectively arranged on the top of two sides of the protective shell 1, an inverted T-shaped limiting fixture block 8 is fixedly arranged on the inner sides of the heat dissipation plates 7, the limiting fixture block 8 is matched and slidably arranged in a limiting groove 9 arranged on the protective shell 1, the top end of the protective shell 1 is provided with a cover plate 10.

Can dispel the heat to the protecting crust 1 inside through the heating panel 7 that is equipped with, prevent that the heat from concentrating to bring the influence for the work of mainboard 2, and cooperate through spacing fixture block 8 and spacing groove 9, can realize that the block is connected between heating panel 7 and the protecting crust 1, conveniently dismantle and install heating panel 7

The same screw rod 11 is inserted in the two sliding tables 3, external threads with opposite rotating directions are arranged outside the two ends of the screw rod 11 respectively, the two sliding tables 3 are in threaded connection with the screw rod 11 through the external threads with opposite rotating directions respectively, the two ends of the screw rod 11 are in rotating connection with the inner wall of the protective shell 1 through bearings respectively, and one end of the screw rod 11 penetrates through the protective shell 1 and is fixedly provided with a rotating and twisting block 12.

The rotating and screwing block 12 drives the screw rod 11 to rotate, the screw rod 11 drives the two sliding tables 3 which are in threaded connection with the screw rod to move relatively or oppositely, the distance between the two clamping grooves 4 can be adjusted according to the actual size of the mainboard 2, and the horizontal position of the mainboard 2 can be clamped and fixed through the interaction of the two clamping grooves 4.

The both sides of lead screw 11 all are provided with slide bar 13, and two slide bars 13 all with two slip table 3 sliding connection, and the both ends of slide bar 13 all with the inner wall fixed connection of protecting crust 1.

The sliding rod 13 arranged can limit the movement of the sliding table 3, so that the sliding table 3 can only move stably along the horizontal direction.

One end of the cover plate 10 is rotatably connected with the protective shell 1, a right-angle groove 14 is formed in the inner side of the other end of the cover plate 10, a cushion block 15 is arranged on the protective shell 1 corresponding to the right-angle groove 14, the cover plate 10 is fixedly connected with the cushion block 15 through a fixing screw, and a handle is fixedly arranged on one side, close to the cushion block 15, of the top end of the cover plate 10.

Conveniently open protecting crust 1 through the apron 10 that is equipped with, conveniently overhaul and maintain mainboard 2.

The inner wall of the clamping groove 4 is bonded with a flexible rubber pad.

Through the flexible rubber pad that is equipped with, can reduce the wearing and tearing between draw-in groove 4 and mainboard 2.

The working principle is as follows: when needing to overhaul mainboard 2 and maintain, only need to twist and revolve wrong piece 12 of twisting and drive lead screw 11 and rotate, make two slip tables 3 motion in opposite directions, transverse position to mainboard 2 becomes flexible, then upwards stimulate pull rod 6 and drive clamp plate 16 rebound, remove the power of the vertical direction of mainboard 2, then with mainboard 2 from draw-in groove 4 in the removal can, the operation is comparatively convenient and fast, when installing mainboard 2, stimulate pull rod 6 with clamp plate 16 rebound, directly arrange mainboard 2 in two draw-in grooves 4, it revolves wrong piece 12 of twisting and drives lead screw 11 and rotate to twist, lead screw 11 rotates and drives two slip tables 3 relative motion, can realize carrying out the chucking through two draw-in grooves 4 to the mainboard 2 of not unidimensional fixed, then loosen the effort to pull rod 6, through the elastic action who supports tight spring 5, can realize carrying out further spacing fixed to mainboard 2.

It should be noted that, in this document, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "fixedly," "mounted," "connected," and "connected" are to be construed broadly, e.g., "mounted" may be a fixed connection, a removable connection, or an integral connection; "connected" may be mechanically or electrically connected; "connected" may be directly connected or indirectly connected through an intermediate member, or may be internal or external to two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a protector for be used for digital broadcast power amplifier main control board, includes protecting crust (1) and mainboard (2), its characterized in that: the protective shell is characterized in that two movable sliding tables (3) are arranged on two sides of an inner cavity of the protective shell (1) respectively, clamping grooves (4) are formed in the inner sides of the two sliding tables (3), two ends of a main board (2) are arranged in the two clamping grooves (4) respectively, a pressing plate (16) for pressing the main board (2) is arranged at the top of the main board (2) in the clamping grooves (4), a plurality of tightening springs (5) are fixedly arranged on two sides of the top end of the pressing plate (16) respectively, the top ends of the tightening springs (5) are fixedly connected with the sliding tables (3), a pull rod (6) is fixedly arranged in the middle of the top end of the pressing plate (16), the top end of the pull rod (6) penetrates through the sliding tables (3) to be arranged at the top of the sliding tables (3), heat dissipation plates (7) are arranged at the top of two sides of the protective shell (1), and a reverse T-shaped limiting clamping block (8) is fixedly arranged on the inner side of the heat dissipation plates (7), the limiting fixture block (8) is matched with and arranged in a limiting groove (9) formed in the protective shell (1) in a sliding mode, and a cover plate (10) is arranged at the top end of the protective shell (1).

2. The protection device for the main control board of the digital broadcasting power amplifier device according to claim 1, characterized in that: two it has same lead screw (11) to peg graft in slip table (3), the outside at lead screw (11) both ends is equipped with the external screw thread that revolves to opposite respectively, two slip table (3) are through revolving to opposite external screw thread and lead screw (11) threaded connection respectively.

3. The protection device for the main control board of the digital broadcasting power amplifier device according to claim 2, characterized in that: the two ends of the screw rod (11) are respectively and rotatably connected with the inner wall of the protective shell (1) through bearings, and one end of the screw rod (11) penetrates through the protective shell (1) and is fixedly provided with a screwing block (12).

4. The protection device for the main control board of the digital broadcasting power amplifier device according to claim 2, characterized in that: the both sides of lead screw (11) all are provided with slide bar (13), two slide bar (13) all with two slip tables (3) sliding connection, just the both ends of slide bar (13) all with the inner wall fixed connection of protecting crust (1).

5. The protection device for the main control board of the digital broadcasting power amplifier device according to claim 1, characterized in that: one end of the cover plate (10) is rotatably connected with the protective shell (1), a right-angle groove (14) is formed in the inner side of the other end of the cover plate (10), and a cushion block (15) is arranged on the protective shell (1) and corresponds to the right-angle groove (14).

6. The protection device for the main control board of the digital broadcasting power amplifier device according to claim 5, characterized in that: the cover plate (10) is fixedly connected with the cushion block (15) through a fixing screw, and a lifting handle is fixedly arranged on one side, close to the cushion block (15), of the top end of the cover plate (10).

7. The protection device for the main control board of the digital broadcasting power amplifier device according to claim 1, characterized in that: the inner wall of the clamping groove (4) is bonded with a flexible rubber pad.