Detachable signal expansion device

Abstract

A detachable signal expansion device belongs to the technical field of signal expansion equipment and comprises a signal generator, slots are arranged on two side surfaces of the signal generator, an access cover is connected above the signal generator, plugboards are arranged on two sides of the access cover, and the access cover is fixed with the signal generator through the plugboards and the slots in an inserted manner. Fixing can be completed only by inserting the inserting plate into the inserting groove and clamping the clamping buckle into the clamping groove, screws are not needed for fixing, and mounting and dismounting are extremely convenient. When the access cover is disassembled, the pressing block on the access cover is jacked up under the acting force of the top plate and the second spring, so that the access cover is more convenient to disassemble, and the disassembly and assembly efficiency and the later maintenance efficiency are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of signal expansion devices, and relates to a signal expansion device, specifically to a detachable signal expansion device. Background Art

[0002] A signal expansion device is a device that generates signals, also known as a signal generator. A signal generator is a device that can provide electrical signals of various frequencies, waveforms, and output levels. When measuring the amplitude characteristics, frequency characteristics, transmission characteristics, and other electrical parameters of various telecommunication systems or telecommunication devices, as well as when measuring the characteristics and parameters of components, it is used as a test signal source or excitation source.

[0003] The existing signal expansion devices have the following defects: assembly and disassembly are relatively troublesome, and multiple screws are required for fixation. After long-term use, the screws may age, resulting in difficult disassembly, increasing the maintenance difficulty of the device. In order to facilitate disassembly and maintenance in the later stage, it is necessary to improve the structure of the signal expansion device. Summary of the Utility Model

[0004] Aiming at the deficiencies existing in the use of the above signal expansion device, the utility model proposes a detachable signal expansion device, which is beneficial to the assembly and disassembly of the device and improves the installation and maintenance efficiency.

[0005] The detachable signal expansion device provided by this application adopts the following technical solutions:

[0006] The detachable signal expansion device includes a signal generator, and is characterized in that: slots are provided on both sides of the signal generator, a maintenance cover is connected above the signal generator, insertion plates are provided on both sides of the maintenance cover, and the maintenance cover is fixedly inserted into the signal generator through the insertion plates and the slots.

[0007] By adopting the above technical solution, during assembly, the maintenance cover is pressed downwards so that the insertion plates can be inserted into the slots to form a quick installation with the signal generator. During disassembly, only the maintenance cover needs to be pulled out from the signal generator, and the operation is simple and fast, without the need to use screws for fixation, providing convenience for installation and maintenance.

[0008] Furthermore, a card slot is embedded on the surface of the insertion plate, an installation hole is provided on the surface of the slot, a first spring and a buckle are provided inside the installation hole, and the buckle elastically slides in the installation hole through the first spring.

[0009] By adopting the above technical solution, the buckle and the card slot form a clamping connection, which can limit and fix the maintenance cover and the signal generator, and improve the connection stability between the two.

[0010] Further, the buckle is a wedge-shaped block structure with inclined surfaces on its upper and lower end faces.

[0011] By adopting the above technical solution, the buckle structure of the wedge-shaped structure is beneficial to the smooth pressing and popping out of the inspection cover, realizing rapid installation and disassembly.

[0012] Further, a mounting plate is fixedly provided on the inner side wall of the signal generator, a second spring is connected to the mounting plate, and a top plate is fixedly provided on the second spring.

[0013] By adopting the above technical solution, an elastic component is formed by the mounting plate, the second spring and the top plate, which is beneficial to the auxiliary popping out of the inspection cover during disassembly and improves the convenience of disassembly.

[0014] Further, a pressing block is connected to the inner surface of the inspection cover, and the pressing block is in contact connection with the top plate on the inner wall of the signal generator.

[0015] By adopting the above technical solution, the pressing block serves as a support member connected to the elastic component, so that an elastic connection is formed between the entire inspection cover and the signal generator.

[0016] Further, a heat dissipation hole is provided on one side of the signal generator, a dust-proof net is provided on the surface of the heat dissipation hole, and the dust-proof net is detachably connected to the heat dissipation hole.

[0017] By adopting the above technical solution, the heat dissipation hole is beneficial to the heat dissipation of the internal components of the signal generator, the dust-proof net forms an effective dust-proof protection for the internal components, and at the same time, the detachable structure is beneficial to the later disassembly, cleaning or replacement of the filter net.

[0018] Further, a sealing gasket is connected to the top surface of the signal generator, and an anti-slip pad is connected to the bottom surface.

[0019] By adopting the above technical solution, the setting of the sealing gasket improves the sealing performance between the signal generator and the inspection cover, and the anti-slip pad is beneficial to increasing the stability of the entire signal generator during use.

[0020] In summary, the present utility model includes at least one of the following beneficial technical effects:

[0021] (1) For the present utility model, only by inserting the plug board into the inside of the slot and snapping the buckle into the inside of the card slot, the fixing can be completed without using screws for fixing, and the installation and disassembly are extremely convenient, improving the disassembly and assembly efficiency.

[0022] (2) When disassembling the inspection cover of the present utility model, the pressing block on the inspection cover will be lifted under the action of the top plate and the second spring, and the disassembly of the inspection cover is more convenient, facilitating later maintenance and improving the maintenance efficiency. Brief Description of the Drawings

[0023] Figure 1 This is a schematic diagram of the overall structure of the present utility model.

[0024] Figure 2 This is a schematic diagram of the connection structure between the signal generator and the maintenance cover of the present utility model.

[0025] Figure 3 This is a three-dimensional structure schematic diagram of the signal generator in the present utility model.

[0026] Figure 4 This is a top view structure schematic diagram of the signal generator in the present utility model.

[0027] In the figure: signal generator 1, maintenance cover 2, plug board 3, switch 4, display 5, warning light 6, anti-slip pad 7, card slot 8, slot 9, mounting hole 10, first spring 11, buckle 12, second spring 13, top plate 14, pressing block 15, heat dissipation hole 16, sealing gasket 17. Specific implementation manners

[0028] The present utility model will be further clarified below in conjunction with the accompanying drawings and specific implementation manners. It should be understood that these implementation manners are only used to illustrate the present utility model patent and not to limit the scope of the present utility model patent. After reading the present utility model patent, various equivalent forms of modification by those skilled in the art to the present utility model patent all fall within the scope defined by the appended claims of this application.

[0029] Embodiment 1

[0030] Such as Figure 1-2As shown in the figure, for the detachable signal expansion device, on one side of the signal generator 1, there are a switch 15, a display 16, and a warning light 17. On both sides of the signal generator 1, there are slots 9. Above the signal generator 1, there is a maintenance cover 2 connected. On both sides of the maintenance cover 2, there are insertion plates 3. The maintenance cover 2 is inserted and fixed to the signal generator 1 through the insertion plates 3 and the slots 9. On the surface of the insertion plate 3, there is a card slot 8 embedded. On the surface of the slot 9, there is a mounting hole 10. Inside the mounting hole 10, there is a first spring 11 and a buckle 12. The buckle 12 elastically slides in the mounting hole 10 through the first spring 11. A limit fixation is formed between the maintenance cover 2 and the signal generator 1 to improve the stability of the connection between the two, and a snap connection is formed by the buckle 12 and the card slot 8. On the inner side wall of the signal generator 1, there is a fixed mounting plate 11. On the mounting plate 11, there is a second spring 13 connected. On the second spring 13, there is a top plate 14 fixed. The three are connected to form an elastic component. There are 4 elastic components, which are respectively placed at the four corners of the inner wall of the signal generator. In order to facilitate the auxiliary ejection of the maintenance cover 2 during disassembly and improve the convenience of disassembly, in this embodiment, a pressing block 15 is provided on the inner surface of the maintenance cover 2, and the pressing block 15 just contacts and connects with the top plate 14 on the inner wall of the signal generator 1. With the pressing block 15 as the support member connected to the elastic component, an elastic connection is formed between the entire maintenance cover 2 and the signal generator 1.

[0031] Embodiment 2

[0032] In order to facilitate the smooth pressing and ejection of the maintenance cover 2 and achieve quick installation and disassembly, in this embodiment, the buckle 12 adopts a slider structure with an inclined surface. Specifically, as Figure 2 shown, the buckle 12 is a wedge-shaped block structure with inclined surfaces at the upper and lower ends.

[0033] In order to facilitate the heat dissipation of the internal components of the signal generator, in this embodiment, it is achieved by setting heat dissipation holes 16 on the signal generator. Specifically, as Figure 2-3 shown, there are heat dissipation holes 16 on one side of the signal generator 1; in order to effectively protect the internal components of the signal generator 1 from dust, in this embodiment, a filter screen is provided outside the heat dissipation holes 16. In order to facilitate the later disassembly, cleaning or replacement of the filter screen, the filter screen is of a detachable structure.

[0034] In order to improve the sealing performance between the signal generator and the maintenance cover, the anti-slip pad is beneficial to increasing the stability of the entire signal generator during use. Specifically, as Figure 2 shown, a sealing pad 14 is connected to the top surface of the signal generator 1, and an anti-slip pad 7 is connected to the bottom surface. There are four anti-slip pads 7, which are respectively located at the four corners of the bottom of the signal generator 1. The anti-slip pad 7 and the signal generator 1 are fixed by screws.

[0035] As Figure 1-4As shown in the figure, the working principle of the detachable signal expansion device is as follows: During assembly, place the inspection cover 2 on top of the signal generator 1 and press the inspection cover 2 downwards, causing the plug board 3 to slide into the interior of the slot 9. While the plug board 3 moves downwards, it will squeeze the buckle 12 and compress the first spring 11, causing it to retract into the interior of the mounting hole 10. When the card slot 8 moves to the position of the buckle 12, the buckle 12 will be snapped into the interior of the card slot 8 under the reaction force of the first spring 11, completing the fixation of the inspection cover 2. During disassembly, simply press the buckle 12 to disassemble the inspection cover 2. The operation is simple and fast, without the need to use screws for fixation, providing convenience for the maintenance of this device. When installing the inspection cover 2, the pressing block 15 will squeeze the top plate 14, thereby compressing the second spring 13. When pressing the buckle 12, the top plate 14 will lift the inspection cover 2 under the reaction force of the second spring 13 to complete the disassembly.

Claims

1. A detachable signal expansion device, comprising a signal generator (1), characterized in that: Slots (9) are provided on both sides of the signal generator (1); an inspection cover (2) is connected to the top of the signal generator (1); plug boards (3) are provided on both sides of the inspection cover (2); the inspection cover (2) is plugged and fixed to the signal generator (1) through the plug boards (3) and the slots (9); a card slot (8) is embedded on the surface of the plug board (3); a mounting hole (10) is provided on the surface of the slot (9); a first spring (11) and a buckle (12) are provided inside the mounting hole (10); the buckle (12) is elastically slid in the mounting hole (10) through the first spring (11).

2. The detachable signal expansion device according to claim 1, characterized in that: The buckle (12) is a wedge-shaped block structure with inclined surfaces on the upper and lower end surfaces. After the inspection cover (2) is installed on the signal generator (1), the buckle (12) is snapped into the card slot (8).

3. The detachable signal expansion device according to claim 1, characterized in that: A mounting plate is fixedly provided on the inner side wall of the signal generator (1), a second spring (13) is connected to the mounting plate, and a top plate (14) is fixedly provided on the second spring (13).

4. The detachable signal expansion device according to claim 1, characterized in that: A pressing block (15) is connected to the inner surface of the inspection cover (2), and the pressing block (15) is in contact with a top plate (14) on the inner wall of the signal generator (1).

5. The detachable signal expansion device according to claim 3, characterized in that: A heat dissipation hole (16) is provided on one side of the signal generator (1), a dustproof net is provided on the surface of the heat dissipation hole (16), and the dustproof net and the heat dissipation hole (16) are detachably connected.

6. The detachable signal expansion device according to claim 5, characterized in that: The top surface of the signal generator (1) is connected to a sealing pad (17), and the bottom surface is connected to an anti-slip pad (7).

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