Adjustable filter assembly

Abstract

The utility model discloses an adjustable filter assembly, which relates to the technical field of filters, and comprises a filter main body and an adjusting assembly, the bottom of the filter main body is provided with a bottom shell, the front surface and the rear surface of the bottom shell are provided with chutes, and the adjusting assembly is arranged in the middle of the front end of the bottom shell. And the adjusting assembly comprises a crank handle, a trapezoidal screw rod, a screw rod nut, a fixing block, a connecting rod, a fixing plate, a mounting plate, a mounting hole and a sliding pin, the rear end of the crank handle penetrates through the front end of the bottom shell to be connected with the trapezoidal screw rod, and the screw rod nut is connected to the outer portion of the trapezoidal screw rod. According to the adjustable filter assembly, the first movable clamping plate is pushed through the elastic force of the reset spring, the other two movable clamping plates outside the cross rod can be folded with the fixed clamping plates respectively, and therefore a cable at the position of a wiring duct is clamped; the situation that the cable is damaged due to the fact that clamping force is too strong in a traditional screw fixing mode is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to an adjustable filter component. Background Art

[0002] A filter is a filtering circuit composed of capacitors, inductors and resistors. It is a passive bidirectional network with a power supply at one end and a load at the other end. It is a component for filtering waves. It can effectively filter out a specific frequency point in the power line or frequencies outside the frequency point to obtain a power signal of a specific frequency, or eliminate a power signal after a specific frequency.

[0003] For example, the utility model with application number CN202222805558.X discloses an EMI filter. This utility model generates heat when the filter module is working, and the heat will be passively dissipated into the air inside the EMI filter. The motor is started to drive the fan blades to rotate, and the hot air generated by the filter module at work is discharged from the inside of the EMI filter through the heat dissipation holes opened on the heat dissipation plate. However, the mounting holes on the side of the housing are fixed in position, which is not conducive to matching different installation environments during installation.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and an adjustable filter component is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide an adjustable filter component to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adjustable filter assembly, comprising a filter body and an adjustment assembly, a bottom shell is provided at the bottom of the filter body, and sliding grooves are provided on the front and rear surfaces of the bottom shell, the adjustment assembly is provided in the middle of the front end of the bottom shell, and the adjustment assembly comprises a hand crank, a trapezoidal screw, a screw nut, a fixing block, a connecting rod, a fixing plate, a mounting plate, a mounting hole and a sliding pin, the rear end of the hand crank passes through the front end of the bottom shell and is connected with a trapezoidal screw, and the outside of the trapezoidal screw is connected with a screw nut, fixing blocks are provided on both sides of the screw nut, and the middle part of the fixing block is connected with a connecting rod through a rotating shaft, the other end of the connecting rod is connected with a fixing plate through a rotating shaft, and a mounting plate is provided at the bottom of the fixing plate, the surface of the mounting plate is provided with a mounting hole, and sliding pins are fixed at the front and rear ends of the mounting plate.

[0007] Furthermore, one end of the trapezoidal screw rod away from the hand crank is rotatably connected to the bottom shell, and two of each of the fixing block, connecting rod, fixing plate and mounting plate are provided.

[0008] Furthermore, the ratio of the number of the mounting plates to the number of the mounting holes is 1:2, and the sliding pin is inserted into the sliding groove.

[0009] Furthermore, wiring grooves are provided on both sides of the filter body, and side frames are also installed on both sides of the filter body.

[0010] Furthermore, a fixed clamping plate is fixed on the inner side of the side frame, and a return spring is also connected to the inner side of the side frame.

[0011] Furthermore, a movable clamping plate is provided at the other end of the reset spring, and a cross bar is fixed through the through groove on the surface of the movable clamping plate, an operating plate is fixed to the end of the cross bar, and the cross bar is passed through the through grooves on the front and rear surfaces of the side frame.

[0012] Furthermore, the side frame is elastically connected to the movable clamping plate through a return spring, and the number of fixed clamping plates and movable clamping plates is the same.

[0013] Furthermore, the fixed clamping plate is a convex structure, and the fixed clamping plate and the movable clamping plate are parallel to each other.

[0014] The utility model provides an adjustable filter component, which has the following beneficial effects:

[0015] 1. The utility model causes the lead screw nut to move along the outside of the trapezoidal lead screw by rotating the hand crank, and changes the angle of the connecting rod on the fixed block during the displacement process, causing the two mounting plates to move toward or away from each other, so that the position of the mounting hole is adjustable, thereby ensuring adaptability and adapting to installation in different positions. In addition, since the trapezoidal lead screw has a self-locking function, the trapezoidal lead screw and the lead screw nut are reliably locked when the hand crank stops rotating, thereby ensuring the stable installation of the filter body.

[0016] 2. The utility model utilizes the elastic force of the reset spring to push the first movable clamping plate, so that the other two movable clamping plates outside the cross bar can be closed with a fixed clamping plate respectively, thereby clamping the cables at the wiring slot. In addition, due to the structural characteristics of the reset spring, the situation in which the cable is damaged due to excessive clamping force in the traditional screw fixing method is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the front view of the three-dimensional structure of a filter body of an adjustable filter assembly of the utility model;

[0018] Figure 2 This is a bottom-up three-dimensional structural diagram of an adjustment component of an adjustable filter component of the utility model;

[0019] Figure 3 The utility model is a schematic diagram of the side view structure of a filter body of an adjustable filter assembly.

[0020] In the figure: 1. filter body; 2. bottom shell; 3. slide groove; 4. adjustment assembly; 401. hand crank; 402. trapezoidal screw; 403. screw nut; 404. fixing block; 405. connecting rod; 406. fixing plate; 407. mounting plate; 408. mounting hole; 409. sliding pin; 5. wiring slot; 6. side frame; 7. fixed clamping plate; 8. reset spring; 9. moving clamping plate; 10. cross bar; 11. operation panel. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0022] like Figure 1 and Figure 3 As shown, an adjustable filter assembly includes a filter body 1 and an adjustment assembly 4, a bottom shell 2 is provided at the bottom of the filter body 1, and a slide groove 3 is provided on the front and rear surfaces of the bottom shell 2, the adjustment assembly 4 is arranged in the middle of the front end of the bottom shell 2, and the adjustment assembly 4 includes a hand crank 401, a trapezoidal lead screw 402, a lead screw nut 403, a fixing block 404, a connecting rod 405, a fixing plate 406, a mounting plate 407, a mounting hole 408 and a sliding pin 409, the rear end of the hand crank 401 passes through the front end of the bottom shell 2 and is connected to the trapezoidal lead screw 402, and the outside of the trapezoidal lead screw 402 is connected to the lead screw nut 403, and both sides of the lead screw nut 403 are provided There is a fixed block 404, and the middle part of the fixed block 404 is connected to a connecting rod 405 through a rotating shaft, the other end of the connecting rod 405 is connected to a fixed plate 406 through a rotating shaft, and a mounting plate 407 is arranged at the bottom of the fixed plate 406, a mounting hole 408 is opened on the surface of the mounting plate 407, and sliding pins 409 are fixed to the front and rear ends of the mounting plate 407, and the end of the trapezoidal screw rod 402 away from the hand crank 401 is rotatably connected to the bottom shell 2, and two fixed blocks 404, connecting rods 405, fixed plates 406 and mounting plates 407 are respectively arranged, and the ratio of the number of mounting plates 407 and mounting holes 408 is 1:2, and the sliding pin 409 is penetrated in the slide groove 3.

[0023] The specific operation is as follows: the hand crank 401 is rotated to displace the screw nut 403 along the outside of the trapezoidal screw 402. During the displacement, the angle of the connecting rod 405 on the fixed block 404 is changed, causing the two mounting plates 407 to displace in opposite directions, so that the position of the mounting hole 408 is adjustable, thereby ensuring adaptability and accommodating installation in different positions. Moreover, since the trapezoidal screw 402 has a self-locking function, the trapezoidal screw 402 and the screw nut 403 are reliably locked when the hand crank 401 stops rotating, thereby ensuring the stable installation of the filter body 1.

[0024] like Figure 1 and Figure 3As shown, wiring grooves 5 are provided on both sides of the filter body 1, and side frames 6 are also installed on both sides of the filter body 1, a fixed clamping plate 7 is fixed on the inner side of the side frame 6, and a reset spring 8 is also connected to the inner side of the side frame 6, a movable clamping plate 9 is provided at the other end of the reset spring 8, and a cross bar 10 is fixed through the through groove on the surface of the movable clamping plate 9, an operating panel 11 is fixed at the end of the cross bar 10, the cross bar 10 is passed through the through grooves on the front and rear surfaces of the side frame 6, the side frame 6 is elastically connected to the movable clamping plate 9 through the reset spring 8, and the number of fixed clamping plates 7 and movable clamping plates 9 is the same, the fixed clamping plate 7 is a convex structure, and the fixed clamping plate 7 and the movable clamping plate 9 are parallel to each other.

[0025] The specific operation is as follows: the elastic force of the reset spring 8 is used to push the first movable clamping plate 9, so that the other two movable clamping plates 9 outside the cross bar 10 can be closed with a fixed clamping plate 7 respectively, thereby clamping the cables at the wiring slot 5. Due to the structural characteristics of the reset spring 8, the situation in which the cable is damaged due to excessive clamping force using traditional screw fixing methods is avoided.

[0026] In summary, when the adjustable filter assembly is used, the position of the mounting hole 408 is first adjusted according to the actual situation of the installation environment, and the hand crank 401 is rotated to provide a rotational force for the trapezoidal screw 402, so that the trapezoidal screw 402 has the ability to convert the rotational force into a displacement of the screw nut 403 in a linear direction. At this time, the displacement of the screw nut 403 drives the connecting rod 405 to rotate, causing the sliding pin 409 to slide in the slide groove 3 on the front and rear surfaces of the bottom shell 2, and the two mounting plates 407 are displaced in opposite directions;

[0027] After the position of the mounting hole 408 is adjusted, the filter body 1 is fixed at the designated position, and then the operating panel 11 is pushed forward with force to make the cross bar 10 slide in the through grooves on the front and rear surfaces of the side frame 6, and the movable clamping plate 9 moves away from the fixed clamping plate 7. At this time, the cable is extended from the wiring slot 5 to connect with the filter body 1, and the operating panel 11 is released;

[0028] The elastic force of the reset spring 8 drives the first movable clamping plate 9 to return to its original position, so that the other two movable clamping plates 9 fixed to the outside of the cross bar 10 are each closed with a fixed clamping plate 7, thereby clamping the cable at the wiring slot 5. Due to the structural characteristics of the reset spring 8, the situation in which the cable is damaged due to excessive clamping force in the traditional screw fixing method is avoided, thereby reducing the risk of cable failure.

[0029] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. An adjustable filter assembly, comprising a filter body (1) and an adjustment assembly (4), characterized in that: A bottom shell (2) is provided at the bottom of the filter body (1), and a slide groove (3) is provided on the front and rear surfaces of the bottom shell (2). The adjustment component (4) is provided at the middle of the front end of the bottom shell (2), and the adjustment component (4) comprises a hand crank (401), a trapezoidal screw (402), a screw nut (403), a fixing block (404), a connecting rod (405), a fixing plate (406), a mounting plate (407), a mounting hole (408) and a sliding pin (409). The rear end of the hand crank (401) passes through the front end of the bottom shell (2) and is connected to the trapezoidal screw. (402), and the outside of the trapezoidal lead screw (402) is connected with a lead screw nut (403), fixed blocks (404) are arranged on both sides of the lead screw nut (403), and the middle part of the fixed block (404) is connected with a connecting rod (405) through a rotating shaft, and the other end of the connecting rod (405) is connected with a fixed plate (406) through a rotating shaft, and a mounting plate (407) is arranged at the bottom of the fixed plate (406), a mounting hole (408) is opened on the surface of the mounting plate (407), and sliding pins (409) are fixed at the front and rear ends of the mounting plate (407).

2. The adjustable filter assembly according to claim 1, characterized in that: One end of the trapezoidal lead screw (402) away from the hand crank (401) is rotatably connected to the bottom shell (2), and two of each of the fixing block (404), the connecting rod (405), the fixing plate (406) and the mounting plate (407) are provided.

3. The adjustable filter assembly according to claim 1, characterized in that: The ratio of the number of the mounting plates (407) to the number of the mounting holes (408) is 1:2, and the sliding pin (409) is inserted into the sliding groove (3).

4. The adjustable filter assembly according to claim 1, characterized in that: Wiring grooves (5) are provided on both sides of the filter body (1), and side frames (6) are also installed on both sides of the filter body (1).

5. The adjustable filter assembly according to claim 4, characterized in that: A fixed clamping plate (7) is fixed on the inner side of the side frame (6), and a return spring (8) is also connected to the inner side of the side frame (6).

6. The adjustable filter assembly according to claim 5, characterized in that: The other end of the return spring (8) is provided with a movable clamping plate (9), and a cross bar (10) is fixed through a through groove on the surface of the movable clamping plate (9), and an operating plate (11) is fixed to the end of the cross bar (10). The cross bar (10) is inserted into the through grooves on the front and rear surfaces of the side frame (6).

7. The adjustable filter assembly according to claim 6, characterized in that: The side frame (6) is elastically connected to the movable clamping plate (9) via a return spring (8), and the number of the fixed clamping plates (7) and the movable clamping plates (9) is the same.

8. The adjustable filter assembly according to claim 6, characterized in that: The fixed clamping plate (7) is a convex structure, and the fixed clamping plate (7) and the movable clamping plate (9) are parallel to each other.

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