High-frequency shielding filter cavity

Abstract

The utility model relates to the technical field of high-frequency shielding filters, and particularly discloses a high-frequency shielding filter cavity which comprises a cavity bottom box and a cavity upper cover, the cavity upper cover is sleeved above the cavity bottom box, two sides of the cavity bottom box are respectively provided with a wire hole, the surface of the cavity bottom box is provided with a limiting structure, and the limiting structure is arranged on the surface of the cavity bottom box. The limiting structure comprises two rectangular boxes, the two rectangular boxes are fixedly connected with the two sides of the cavity bottom box correspondingly, rectangular rods are slidably inserted into the two sides of the rectangular boxes correspondingly, triangular blocks are fixedly connected to the ends, close to each other, of the two rectangular rods correspondingly, and springs sleeve the surfaces of the rectangular rods; and the two ends of the spring are fixedly connected with the rectangular box and the rectangular rod correspondingly, rectangular plates are fixedly connected to the two sides of the cavity upper cover correspondingly, and trapezoidal blocks are fixedly connected to the sides, close to the rectangular box, of the rectangular plates. According to the utility model, the problem that a special tool needs to be used when a high-frequency shielding filter is maintained or parts are replaced is relatively tedious is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-frequency shielding filters, and specifically relates to a cavity of a high-frequency shielding filter. Background Technique

[0002] A high-frequency shielding filter is an electronic filter used to pass high-frequency signals and block low-frequency signals. It can weaken or eliminate the low-frequency components in the signal so that the high-frequency signal can pass through. High-frequency shielding filters are usually used in fields such as communication systems, audio processing, and image processing to remove or weaken unwanted low-frequency noise or signal components.

[0003] In the existing related technologies, the following defects often exist: The cavity of the high-frequency shielding filter is often connected by rivets during installation. Rivet connection provides a firm connection structure, but when maintenance or component replacement is required, special tools are needed, which is rather cumbersome. If the operation is improper or improper tools are used, the connection part may be damaged, requiring additional repair or replacement.

[0004] Therefore, the utility model provides a cavity of a high-frequency shielding filter. Content of the Utility Model

[0005] The purpose of the utility model is to solve the defect that special tools are needed during the maintenance or component replacement of the high-frequency shielding filter in the existing technology, which is rather cumbersome, and to propose a cavity of a high-frequency shielding filter.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme: A cavity of a high-frequency shielding filter includes a cavity bottom box and a cavity upper cover. The cavity upper cover is sleeved above the cavity bottom box. Line holes are opened on both sides of the cavity bottom box. A limiting structure is arranged on the surface of the cavity bottom box. The limiting structure includes two rectangular boxes, and the two rectangular boxes are respectively fixedly connected to both sides of the cavity bottom box. Rectangular rods are slidably inserted through both sides of the rectangular box. Triangular blocks are fixedly connected to the ends of the two rectangular rods close to each other. Springs are sleeved on the surfaces of the rectangular rods, and the two ends of the springs are respectively fixedly connected to the rectangular box and the rectangular rod. Rectangular plates are fixedly connected to both sides of the cavity upper cover, and trapezoidal blocks are fixedly connected to the sides of the rectangular plates close to the rectangular boxes.

[0007] The effects achieved by the above components are as follows: By setting the limiting structure, it is convenient to install the cavity upper cover on the surface of the cavity bottom box, thus avoiding the cumbersome steps of using rivets for installation, and further facilitating the subsequent maintenance of the components in the filter cavity.

[0008] Preferably, a threaded rod penetrates through one side of the rectangular box in a threaded manner, and an adjusting plate is rotatably connected to one end of the threaded rod.

[0009] The effects achieved by the above components are as follows: When the threaded rod rotates, it will move in the rectangular box by means of the thread. The movement of the threaded rod will drive the adjusting plate to move towards the trapezoidal block. When the adjusting plate moves to a suitable position, the adjusting plate will squeeze the trapezoidal block, thereby preventing the trapezoidal block from shaking in the rectangular box, and further improving the stability of inserting the trapezoidal block into the rectangular box.

[0010] Preferably, one end of the threaded rod away from the adjusting plate is fixedly connected with a turntable, and the cross-section of the turntable is in the shape of a "plus" sign.

[0011] The effects achieved by the above components are as follows: The rotation of the turntable will drive the rotation of the threaded rod, and the turntable serves to facilitate the rotation of the threaded rod.

[0012] Preferably, a plurality of fixing plates are fixedly connected to both sides of the triangular block, and a rotating shaft is rotatably connected to one side of the two fixing plates close to each other.

[0013] The effects achieved by the above components are as follows: When the triangular block moves, it will cause the trapezoidal block to slide along the surface of the rotating shaft, and the rotating shaft will rotate on the surface of the fixing plate. The rotating shaft serves to reduce the friction between the triangular block and the trapezoidal block, thereby further facilitating the insertion of the trapezoidal block into the rectangular box.

[0014] Preferably, clamping structures are provided on both sides of the cavity bottom box. The clamping structure includes a support arm fixedly connected to the surface of the cavity bottom box. A bottom plate is fixedly connected to the surface of the support arm. An extension plate is fixedly connected to one side of the bottom plate. A lead screw is rotatably connected to the surface of the extension plate. A driving plate is threadedly connected to the arc surface of the lead screw. A pressing plate is fixedly connected to one side of the driving plate.

[0015] The effects achieved by the above components are as follows: By providing the clamping structure, it is convenient to clamp the wire harness passing through the wire hole, thereby preventing the wire harness from being damaged due to accidental contact and being pulled.

[0016] Preferably, a round rod slidably penetrates through the surface of the driving plate, and the round rod is fixedly connected to the surface of the extension plate.

[0017] The effects achieved by the above components are as follows: When the driving plate moves, it will slide along the surface of the round rod. The round rod serves to limit the movement path of the driving plate, thereby preventing the driving plate from rotating during movement, and further preventing the pressing plate from rotating during movement.

[0018] Preferably, a protective pad is fixedly connected to the surface of the bottom plate, and the protective pad is made of rubber.

[0019] The effects achieved by the above components are as follows: The wire harness will be tightly attached to the surface of the protective pad on the bottom plate by the force of extrusion from the pressing plate. The protective pad is made of rubber, thus preventing the wire harness from being squeezed by the pressing plate on the surface of the bottom plate and being damaged due to excessive pressure.

[0020] To sum up:

[0021] 1. In the present utility model, by setting the limiting structure, the upper cover of the cavity is placed above the bottom plate of the cavity, and then the upper cover of the cavity is pressed. The upper cover of the cavity will drive the rectangular plate to move towards the rectangular box. The rectangular plate will drive the trapezoidal block to insert into the rectangular box. The trapezoidal block will squeeze the triangular block by the force applied when pressing the upper cover of the cavity. The triangular block moves by the force of extrusion from the trapezoidal block. The movement of the triangular block will drive the rectangular rod to move. When the rectangular rod moves, it will stretch the spring. When the triangular block moves to an appropriate position, the trapezoidal block will completely insert into the rectangular box. At this time, the triangular block is released from the extrusion of the trapezoidal block. The rectangular rod will drive the triangular block to move by the force of spring contraction. After the triangular block moves to an appropriate position, the triangular block restricts the position of the trapezoidal block, and further restricts the position of the upper cover of the cavity, thus facilitating the positioning of the upper cover of the cavity on the surface of the bottom box of the cavity, avoiding the cumbersome steps of using rivets for installation, and further facilitating the subsequent maintenance of the components inside the filter cavity.

[0022] 2. In the present utility model, by setting the clamping structure, the wire harness passing through the wire hole is placed on the surface of the bottom plate, and then the lead screw is rotated. The rotation of the lead screw will drive the driving plate to move towards the extension plate by means of the thread. The movement of the driving plate will drive the pressing plate to move towards the bottom plate. When the pressing plate moves to an appropriate position, it will squeeze the wire harness. The wire harness will be tightly attached to the surface of the bottom plate by the force of extrusion from the pressing plate, thereby clamping the wire harness and preventing the wire harness from being damaged due to being accidentally touched and pulled. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0024] Figure 2 is a structural schematic diagram of another angle of the present utility model;

[0025] Figure 3 is a disassembled structural schematic diagram of the rectangular box of the present utility model;

[0026] Figure 4 is a structural schematic diagram of the triangular block of the present utility model;

[0027] Figure 5 is a structural schematic diagram of the clamping structure of the present utility model.

[0028] Legend: 1. Cavity bottom box; 2. Cavity upper cover; 3. Wire hole; 4. Limiting structure; 401. Rectangular box; 402. Rectangular rod; 403. Triangular block; 404. Spring; 405. Rectangular plate; 406. Trapezoidal block; 407. Threaded rod; 408. Adjusting plate; 409. Turntable; 410. Fixed plate; 411. Rotating shaft; 5. Clamping structure; 51. Support arm; 52. Bottom plate; 53. Extension plate; 54. Lead screw; 55. Driving plate; 56. Pressing plate; 57. Round rod; 58. Protective pad. Detailed implementation

[0029] Refer to Figure 1 As shown in the figure, the present utility model provides a technical solution: a high-frequency shielding filter cavity, including a cavity bottom box 1 and a cavity upper cover 2. The cavity upper cover 2 is sleeved above the cavity bottom box 1. Wire holes 3 are opened on both sides of the cavity bottom box 1. A limiting structure 4 is provided on the surface of the cavity bottom box 1. By setting the limiting structure 4, it is convenient to install the cavity upper cover 2 on the surface of the cavity bottom box 1, thus avoiding the cumbersome steps of using rivets for installation, and further facilitating the subsequent maintenance of the components inside the filter cavity. Clamping structures 5 are provided on both sides of the cavity bottom box 1. By setting the clamping structures 5, it is convenient to clamp the wire harness passing through the wire holes 3, thus avoiding the damage of the wire harness caused by accidental touching and pulling of the wire harness.

[0030] Next, specifically describe the specific settings and functions of its limiting structure 4 and clamping structure 5.

[0031] Refer to Figure 2 And Figure 3 With Figure 4As shown in the figure, in this embodiment: The limiting structure 4 includes two rectangular boxes 401, the two rectangular boxes 401 are respectively fixedly connected to both sides of the cavity bottom box 1, rectangular rods 402 are slidably inserted into both sides of the rectangular box 401, triangular blocks 403 are fixedly connected to one ends of the two rectangular rods 402 close to each other, a spring 404 is sleeved on the surface of the rectangular rod 402, and both ends of the spring 404 are fixedly connected to the rectangular box 401 and the rectangular rod 402 respectively. Rectangular plates 405 are fixedly connected to both sides of the cavity upper cover 2, and trapezoidal blocks 406 are fixedly connected to one side of the rectangular plate 405 close to the rectangular box 401. A threaded rod 407 penetrates through one side of the rectangular box 401 in a threaded manner, one end of the threaded rod 407 is rotatably connected to an adjusting plate 408, the rotation of the threaded rod 407 will move in the rectangular box 401 by means of the thread, and the movement of the threaded rod 407 will drive the adjusting plate 408 to move towards the trapezoidal block 406. When the adjusting plate 408 moves to a suitable position, the adjusting plate 408 will squeeze the trapezoidal block 406, so as to prevent the trapezoidal block 406 from shaking in the rectangular box 401, and further improve the stability of inserting the trapezoidal block 406 into the rectangular box 401. A turntable 409 is fixedly connected to the end of the threaded rod 407 away from the adjusting plate 408, the cross-section of the turntable 409 is in the shape of a "plus", and the rotation of the turntable 409 will drive the threaded rod 407 to rotate, and the turntable 409 serves to facilitate the rotation of the threaded rod 407. A plurality of fixing plates 410 are fixedly connected to both sides of the triangular block 403, a rotating shaft 411 is rotatably connected to one side of the two fixing plates 410 close to each other, when the triangular block 403 moves, the trapezoidal block 406 will slide along the surface of the rotating shaft 411, and the rotating shaft 411 will rotate on the surface of the fixing plate 410. The rotating shaft 411 serves to reduce the friction between the triangular block 403 and the trapezoidal block 406, so as to further facilitate the insertion of the trapezoidal block 406 into the rectangular box 401.

[0032] Referring to Figure 5As shown, specifically, the clamping structure 5 includes a support arm 51. The support arm 51 is fixedly connected to the surface of the cavity bottom box 1. A bottom plate 52 is fixedly connected to the surface of the support arm 51. An extension plate 53 is fixedly connected to one side of the bottom plate 52. A lead screw 54 is rotatably connected to the surface of the extension plate 53. A driving plate 55 is threadedly connected to the arc surface of the lead screw 54. A pressing plate 56 is fixedly connected to one side of the driving plate 55. A round rod 57 slidably penetrates through the surface of the driving plate 55. The round rod 57 is fixedly connected to the surface of the extension plate 53. When the driving plate 55 moves, it will slide along the surface of the round rod 57. The round rod 57 restricts the movement path of the driving plate 55, thereby preventing the driving plate 55 from rotating during movement, and further preventing the pressing plate 56 from rotating during movement. A protective pad 58 is fixedly connected to the surface of the bottom plate 52. The protective pad 58 is made of rubber. The wire harness will be closely attached to the surface of the protective pad 58 on the bottom plate 52 by the force exerted by the pressing plate 56. The protective pad 58 is made of rubber, so as to prevent the wire harness from being broken due to excessive pressure when the pressing plate 56 presses the wire harness against the surface of the bottom plate 52.

[0033] Working principle: When it is necessary to install the cavity upper cover 2 on the cavity bottom box 1, first place the cavity upper cover 2 above the cavity bottom plate 52, and then press the cavity upper cover 2. The cavity upper cover 2 will drive the rectangular plate 405 to move towards the rectangular box 401. The rectangular plate 405 will drive the trapezoidal block 406 to insert into the rectangular box 401. The trapezoidal block 406 will squeeze the triangular block 403 by means of the force applied by pressing the cavity upper cover 2. The triangular block 403 will move by virtue of the force squeezed by the trapezoidal block 406. When the triangular block 403 moves, it will cause the trapezoidal block 406 to slide along the surface of the rotating shaft 411. The rotating shaft 411 will rotate on the surface of the fixed plate 410. The rotating shaft 411 serves to reduce the friction between the triangular block 403 and the trapezoidal block 406, thereby further facilitating the insertion of the trapezoidal block 406 into the rectangular box 401. The movement of the triangular block 403 will drive the rectangular rod 402 to move. When the rectangular rod 402 moves, it will stretch the spring 404. When the triangular block 403 moves to an appropriate position, the trapezoidal block 406 will be completely inserted into the rectangular box 401. At this time, the triangular block 403 is released from the extrusion of the trapezoidal block 406. The rectangular rod 402 will drive the triangular block 403 to move by virtue of the force of the spring 404 contraction. After the triangular block 403 moves to an appropriate position, the triangular block 403 will limit the position of the trapezoidal block 406, and then limit the position of the cavity upper cover 2, thereby facilitating the positioning of the cavity upper cover 2 on the surface of the cavity bottom box 1. Then rotate the turntable 409. The rotation of the turntable 409 will drive the threaded rod 407 to rotate. The rotation of the threaded rod 407 will cause it to move in the rectangular box 401 by means of the thread. The movement of the threaded rod 407 will drive the adjusting plate 408 to move towards the trapezoidal block 406. When the adjusting plate 408 moves to an appropriate position, the adjusting plate 408 will squeeze the trapezoidal block 406, thereby preventing the trapezoidal block 406 from shaking in the rectangular box 401, and further improving the stability of the insertion of the trapezoidal block 406 into the rectangular box 401.

[0034] When it is necessary to limit the wire harness passing through the wire hole 3, first place the wire harness passing through the wire hole 3 on the surface of the protective pad 58 on the bottom plate 52, and then rotate the screw rod 54. The rotation of the screw rod 54 will drive the driving plate 55 to move towards the extension plate 53 by means of the thread. The movement of the driving plate 55 will drive the pressing plate 56 to move towards the bottom plate 52. When the driving plate 55 moves, it will slide along the surface of the round rod 57. The round rod 57 serves to limit the movement path of the driving plate 55, thereby preventing the driving plate 55 from rotating during movement, and further preventing the pressing plate 56 from rotating during movement. When the pressing plate 56 moves to an appropriate position, it will squeeze the wire harness. The wire harness will be tightly attached to the surface of the protective pad 58 on the bottom plate 52 by virtue of the force of the pressing plate 56 squeezing, thereby clamping the wire harness. The protective pad 58 is made of rubber material, thereby preventing the wire harness from being broken due to excessive pressure when the pressing plate 56 squeezes the wire harness on the surface of the bottom plate 52.

[0035] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific circumstances.

Claims

1. A high-frequency shielding filter cavity, comprising a cavity bottom box (1) and a cavity upper cover (2), the cavity upper cover (2) is sleeved above the cavity bottom box (1), wire holes (3) are formed on both sides of the cavity bottom box (1), and a limiting structure (4) is arranged on the surface of the cavity bottom box (1), characterized in that: The limiting structure (4) includes two rectangular boxes (401), the two rectangular boxes (401) are respectively fixedly connected to both sides of the cavity bottom box (1), rectangular rods (402) are slidably inserted into both sides of the rectangular box (401), triangular blocks (403) are fixedly connected to one ends of the two rectangular rods (402) close to each other, a spring (404) is sleeved on the surface of the rectangular rod (402), and two ends of the spring (404) are respectively fixedly connected to the rectangular box (401) and the rectangular rod (402). Rectangular plates (405) are fixedly connected to both sides of the cavity upper cover (2), and trapezoidal blocks (406) are fixedly connected to one sides of the rectangular plates (405) close to the rectangular boxes (401).

2. A high-frequency shielding filter cavity according to claim 1, wherein: A threaded rod (407) penetrates through one side of the rectangular box (401) in a threaded manner, and one end of the threaded rod (407) is rotatably connected to an adjusting plate (408).

3. The high-frequency shielding filter cavity according to claim 2, characterized in that: A turntable (409) is fixedly connected to one end of the threaded rod (407) far away from the adjusting plate (408), and the cross-section of the turntable (409) is in a "plus" shape.

4. A high-frequency shielding filter cavity according to claim 1, wherein: A plurality of fixing plates (410) are fixedly connected to both sides of the triangular block (403), and a rotating shaft (411) is rotatably connected to one sides of the two fixing plates (410) close to each other.

5. A high-frequency shielding filter cavity according to claim 1, characterized in that: Clamping structures (5) are arranged on both sides of the cavity bottom box (1), the clamping structure (5) includes a support arm (51), the support arm (51) is fixedly connected to the surface of the cavity bottom box (1), a bottom plate (52) is fixedly connected to the surface of the support arm (51), an extension plate (53) is fixedly connected to one side of the bottom plate (52), a lead screw (54) is rotatably connected to the surface of the extension plate (53), a driving plate (55) is threadedly connected to the arc surface of the lead screw (54), and a pressing plate (56) is fixedly connected to one side of the driving plate (55).

6. A high-frequency shielding filter cavity according to claim 5, characterized in that: A round rod (57) slidably penetrates through the surface of the driving plate (55), and the round rod (57) is fixedly connected to the surface of the extension plate (53).

7. A high-frequency shielding filter cavity according to claim 5, characterized in that: A protective pad (58) is fixedly connected to the surface of the bottom plate (52), and the protective pad (58) is made of rubber material.

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