阅读说明：本技术 一种用于数字电路检测的滤波器 (Filter for digital circuit detection ) 是由 张晓菲 于 2021-07-29 设计创作，主要内容包括：本发明公开了—种用于数字电路检测的滤波器,涉及滤波器技术领域,包括壳体,所述壳体的内壁设置有连接块,且连接块的内部活动连接有连接杆,所述连接杆的另一端连接有壳盖,且壳盖的内部开设有第二连接槽,所述壳盖的底部连接有凸块,且凸块的外部活动连接有凹槽块,所述壳体的内部安装有放置板,且放置板的顶部连接有限定杆,所述限定杆的外部活动连接有滤波电路板。本发明中,设置有防护盒、折叠片、接头以及推杆,通过操作推杆就方便带动折叠片进行伸展工作,通过折叠片的伸展方便完成防护盒的密封工作,这样就可以避免滤波器的接头内部会沾有灰尘影响滤波器的使用,提升了滤波器的工作效率,保障了数字电路检测效果。(The invention discloses a filter for digital circuit detection, which relates to the technical field of filters and comprises a shell, wherein a connecting block is arranged on the inner wall of the shell, a connecting rod is movably connected inside the connecting block, the other end of the connecting rod is connected with a shell cover, a second connecting groove is formed in the shell cover, a convex block is connected to the bottom of the shell cover, a groove block is movably connected to the outside of the convex block, a placing plate is arranged inside the shell, a limiting rod is connected to the top of the placing plate, and a filter circuit board is movably connected to the outside of the limiting rod. According to the invention, the protection box, the folding sheet, the joint and the push rod are arranged, the folding sheet can be conveniently driven to extend by operating the push rod, and the sealing work of the protection box can be conveniently completed by extending the folding sheet, so that the situation that dust is adhered to the interior of the joint of the filter to influence the use of the filter can be avoided, the working efficiency of the filter is improved, and the detection effect of a digital circuit is ensured.)

1. A filter for digital circuit detection, comprising a housing (1), characterized in that: the inner wall of the shell (1) is provided with a connecting block (19), the inside of the connecting block (19) is movably connected with a connecting rod (3), the other end of the connecting rod (3) is connected with a shell cover (2), a second connecting groove (23) is formed in the shell cover (2), the bottom of the shell cover (2) is connected with a convex block (24), the outside of the convex block (24) is movably connected with a groove block (15), a placing plate (18) is installed in the shell (1), the top of the placing plate (18) is connected with a limiting rod (20), the outside of the limiting rod (20) is movably connected with a filter circuit board (16), a first connecting groove (21) is formed in the filter circuit board (16), a rubber sleeve (17) is movably sleeved on the outside of the other end of the limiting rod (20), and a joint (9) is arranged in the shell (1), and the outside swing joint of joint (9) has metallic shield net (10), the external connection of metallic shield net (10) has dead lever (25), and the other end of dead lever (25) installs movable block (8), the outside of movable block (8) is provided with fixed frame (11), and the externally mounted of fixed frame (11) has protection box (4), the inside of protection box (4) is provided with receiver (5), and the internally connected of receiver (5) has folded sheet (6), the externally mounted of folded sheet (6) has push rod (7), and the upper and lower both ends of push rod (7) are connected with slider (12), the outside of slider (12) is provided with spout (13).

2. A filter for digital circuit detection as claimed in claim 1, wherein: the left end and the right end of the filter circuit board (16) are connected with the conducting wires (14), and a rubber pad (22) is arranged at the bottom of the filter circuit board (16).

3. A filter for digital circuit detection as claimed in claim 1, wherein: a telescopic structure is formed between the folding piece (6) and the storage box (5) through a push rod (7) and a sliding block (12), and the width of the folding piece (6) is equal to the inner width of the protection box (4).

4. A filter for digital circuit detection as claimed in claim 1, wherein: a moving structure is formed between the sliding block (12) and the protection box (4) through the sliding groove (13) and the push rod (7), and the outer wall of the sliding block (12) is tightly attached to the inner wall of the sliding groove (13).

5. A filter for digital circuit detection as claimed in claim 1, wherein: the metal shielding net (10) and the protection box (4) form a lifting structure through the fixed frame (11) and the movable block (8), and the surface area of the metal shielding net (10) is larger than that of the joint (9).

6. A filter for digital circuit detection as claimed in claim 1, wherein: the filter circuit board (16) and the placing board (18) form a detachable structure through a rubber sleeve (17) and a limiting rod (20), and the limiting rod (20) is symmetrical about the central axis of the placing board (18).

7. A filter for digital circuit detection as claimed in claim 1, wherein: a fixing structure is formed between the shell cover (2) and the shell body (1) through a connecting block (19) and a connecting rod (3), and the cross sectional area of the connecting block (19) is larger than that of the connecting rod (3).

8. A filter for digital circuit detection as claimed in claim 1, wherein: a detachable structure is formed between the shell cover (2) and the shell body (1) through the groove block (15) and the convex block (24), and the length of the groove block (15) is larger than that of the convex block (24).

Technical Field

The invention relates to the technical field of filters, in particular to a filter for digital circuit detection.

Background

With the development of science and technology and the progress of times, the filter has an increasingly wide application range, the filter is a filter circuit consisting of a capacitor, an inductor and a resistor, and the filter can effectively filter a frequency point of a specific frequency in a power line or frequencies except the frequency point to obtain a power signal of the specific frequency or eliminate the power signal of the specific frequency.

In the existing filter, in the use process, the connector of the filter is exposed outside, so that dust easily enters the connector, and the use of the filter is influenced; the existing filter is easily affected by cable radiation in the using process to cause the condition of filter failure, and the practicability of the filter is reduced.

Disclosure of Invention

The invention aims to solve the problems that in the use process of the existing filter, the connector of the filter is exposed to the outside, so that dust easily enters the connector to influence the use of the filter; the existing filter is easily affected by cable radiation in the using process to cause the condition of filter failure, and the defect of the practicability of the filter is reduced, and the filter for digital circuit detection is provided.

In order to achieve the purpose, the invention adopts the following technical scheme:

a filter for digital circuit detection comprises a shell, wherein a connecting block is arranged on the inner wall of the shell, a connecting rod is movably connected inside the connecting block, the other end of the connecting rod is connected with a shell cover, a second connecting groove is formed in the shell cover, a convex block is connected to the bottom of the shell cover, a groove block is movably connected to the outer portion of the convex block, a placing plate is installed inside the shell, a limiting rod is connected to the top of the placing plate, a filter circuit board is movably connected to the outer portion of the limiting rod, a first connecting groove is formed in the inner portion of the filter circuit board, a rubber sleeve is movably sleeved on the outer portion of the other end of the limiting rod, a joint is arranged inside the shell, a metal shielding net is movably connected to the outer portion of the joint, a fixed rod is connected to the outer portion of the metal shielding net, a movable block is installed at the other end of the fixed rod, and a fixed frame is arranged on the outer portion of the movable block, and the externally mounted of fixed frame has the protection box, the inside of protection box is provided with the receiver, and the internal connection of receiver has the folded sheet, the externally mounted of folded sheet has the push rod, and the upper and lower both ends of push rod are connected with the slider, the outside of slider is provided with the spout.

Preferably, the left end and the right end of the filter circuit board are connected with wires, and a rubber pad is arranged at the bottom of the filter circuit board.

Preferably, constitute extending structure through push rod, slider between folding piece and the receiver, and the width of folding piece equals with the inside width of protection box.

Preferably, a moving structure is formed between the sliding block and the protective box through the sliding groove and the push rod, and the outer wall of the sliding block is tightly attached to the inner wall of the sliding groove.

Preferably, a lifting structure is formed between the metal shielding net and the protection box through a fixed frame and a movable block, and the surface area of the metal shielding net is larger than that of the joint.

Preferably, a detachable structure is formed between the filter circuit board and the placing plate through a rubber sleeve and a limiting rod, and the limiting rod is symmetrical about the central axis of the placing plate.

Preferably, a fixing structure is formed between the shell cover and the shell body through a connecting block and a connecting rod, and the cross-sectional area of the connecting block is larger than that of the connecting rod.

Preferably, a detachable structure is formed between the shell cover and the shell body through the groove block and the convex block, and the length of the groove block is larger than that of the convex block.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

according to the invention, the protection box, the folding sheet, the joint and the push rod are arranged, the folding sheet can be conveniently driven to extend by operating the push rod, and the sealing work of the protection box can be conveniently completed by extending the folding sheet, so that the situation that dust is adhered to the interior of the joint of the filter to influence the use of the filter can be avoided, the working efficiency of the filter is improved, and the detection effect of a digital circuit is ensured; and through being provided with fixed frame, movable block, dead lever and metallic shield net, manual operation metallic shield net, metallic shield net passes through the dead lever, the movable rod descends the operation, just so conveniently accomplishes metallic shield net's fixed work, and fixed frame can be better carries out the direction to metallic shield net and prescribes a limit to work, just can avoid the wave filter because of the condition that the cable radiation became invalid appears through the metallic shield net, has promoted the work efficiency of wave filter.

Drawings

FIG. 1 is a schematic diagram of a filter structure according to the present invention;

FIG. 2 is a schematic view of a protective case according to the present invention;

FIG. 3 is a schematic view of the internal structure of the housing according to the present invention;

FIG. 4 is a schematic view of a connection structure of the mounting board and the filter circuit board according to the present invention;

FIG. 5 is a schematic view of a connecting structure between the housing cover and the housing according to the present invention;

fig. 6 is an enlarged schematic view of a portion a in fig. 2.

Illustration of the drawings:

1. a housing; 2. a shell cover; 3. a connecting rod; 4. a protective case; 5. a storage box; 6. folding the sheet; 7. a push rod; 8. a movable block; 9. a joint; 10. a metal shielding mesh; 11. a fixing frame; 12. a slider; 13. a chute; 14. a wire; 15. a groove block; 16. a filter circuit board; 17. A rubber sleeve; 18. placing the plate; 19. connecting blocks; 20. a restraining bar; 21. a first connecting groove; 22. a rubber pad; 23. a second connecting groove; 24. a bump; 25. and (5) fixing the rod.

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.

Referring to fig. 1-6, a filter for digital circuit detection, including a housing 1, a housing cover 2, a connecting rod 3, a protective box 4, a receiving box 5, a folding sheet 6, a push rod 7, a movable block 8, a joint 9, a metal shielding net 10, a fixed frame 11, a slider 12, a sliding slot 13, a wire 14, a groove block 15, a filter circuit board 16, a rubber sleeve 17, a placing plate 18, a connecting block 19, a limiting rod 20, a first connecting slot 21, a rubber pad 22, a second connecting slot 23, a bump 24 and a fixed rod 25, wherein the inner wall of the housing 1 is provided with the connecting block 19, the connecting rod 3 is movably connected inside the connecting block 19, the other end of the connecting rod 3 is connected with the housing cover 2, the second connecting slot 23 is formed inside the housing cover 2, the housing cover 2 and the housing 1 form a fixed structure through the connecting block 19 and the connecting rod 3, and the cross-sectional area of the connecting block 19 is larger than that of the connecting rod 3, manually placing the shell cover 2 on the shell 1 and operating the connecting rod 3, wherein the connecting rod 3 descends into the connecting block 19 through the second connecting groove 23, so that the installation work of the shell cover 2 is conveniently completed, a detachable structure is formed between the shell cover 2 and the shell 1 through the groove block 15 and the convex block 24, the length of the groove block 15 is larger than that of the convex block 24, the shell cover 2 is manually operated, the shell cover 2 drives the convex block 24 to ascend, the convex block 24 ascends to the outside of the groove block 15, so that the detachment work of the shell cover 2 is conveniently completed, the bottom of the shell cover 2 is connected with the convex block 24, the groove block 15 is movably connected to the outside of the convex block 24, the placing plate 18 is installed inside the shell 1, the top of the placing plate 18 is connected with the limiting rod 20, the outside of the limiting rod 20 is movably connected with the filter circuit board 16, and the first connecting groove 21 is formed inside the filter circuit board 16, the filter circuit board 16 and the placing plate 18 form a detachable structure through the rubber sleeve 17 and the limiting rod 20, the limiting rod 20 is symmetrical about the central axis of the placing plate 18, the rubber sleeve 17 is manually operated, the rubber sleeve 17 moves out of the limiting rod 20, then the filter circuit board 16 is operated, and the filter circuit board 16 rises out of the limiting rod 20, so that the filter circuit board 16 can be conveniently detached;

the rubber sleeve 17 is sleeved on the other end of the limiting rod 20 in a movable manner, the joint 9 is arranged inside the shell 1, the metal shielding net 10 is movably connected to the outside of the joint 9, the fixing frame 11 is arranged between the metal shielding net 10 and the protective box 4, the movable block 8 forms a lifting structure, the surface area of the metal shielding net 10 is larger than that of the joint 9, the metal shielding net 10 is manually operated, the metal shielding net 10 descends through the movable block 8 and the fixing frame 11, so that the installation work of the metal shielding net 10 is conveniently completed, the fixed rod 25 is connected to the outside of the metal shielding net 10, the movable block 8 is installed at the other end of the fixed rod 25, the fixed frame 11 is arranged outside the movable block 8, the protective box 4 is installed outside the fixed frame 11, the storage box 5 is arranged inside the protective box 4, the folding piece 6 is connected inside the storage box 5, the folding piece 6 is connected between the folding piece 6 and the storage box 5 through the push rod 7, Slider 12 constitutes extending structure, and the width of folding piece 6 equals with the inside width of protection box 4, manual operation push rod 7, push rod 7 drives folding piece 6 through slider 12 and extends the operation, just so conveniently accomplish the sealing work of protection box 4, the externally mounted of folding piece 6 has push rod 7, and the upper and lower both ends of push rod 7 are connected with slider 12, through spout 13 between slider 12 and the protection box 4, push rod 7 constitutes the removal structure, and the outer wall of slider 12 is inseparable with the inner wall laminating of spout 13, manual operation push rod 7, push rod 7 drives slider 12 through spout 13 and removes the operation, just so conveniently accomplish the work of opening of protection box 4, slider 12's outside is provided with spout 13, both ends are connected with wire 14 about filter circuit board 16, and filter circuit board 16's bottom is provided with rubber pad 22.

The working principle is as follows: when the connector is used, firstly, the push rod 7 is manually operated, the push rod 7 drives the folding sheet 6 to perform contraction work through the slide block 12 and the chute 13, the folding sheet 6 is contracted into the storage box 5, so that the opening work of the protection box 4 is conveniently completed, the protection work can be performed on the joint 9 through the protection box 4, the manually operated metal shielding net 10 (the middle part of the metal shielding net 10 is hollow), the metal shielding net 10 is descended through the movable block 8 and the fixed frame 11, so that the installation work of the metal shielding net 10 is conveniently completed, the situation that the filter fails due to cable radiation can be avoided through the metal shielding net 10, the manually operated connecting rod 3 is lifted through the second connecting groove 23, the connecting rod 3 is lifted out of the connecting block 19, the shell cover 2 is operated again, the convex block 24 is moved out of the groove block 15 by the shell cover 2, so that the disassembly work of the shell cover 2 is conveniently completed, the rubber sleeve 17 is manually operated, the rubber sleeve 17 is separated from the limiting rod 20, and then the filtering circuit board 16 is operated, so that the first connecting groove 21 is separated from the limiting rod 20, the filtering circuit board 16 is conveniently replaced, the filter shell is repeatedly used, and resources are saved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.