CN115096240A - Filter quality detection device - Google Patents

Abstract

The invention discloses a quality detection device of a filter, which relates to the technical field of pin detection of the filter and solves the problem of low efficiency caused by the manual pin detection of the existing filter, and comprises a rotary supporting table, wherein electric push rods are fixed at both ends of the top of the rotary supporting table, a clamping plate is fixed at the output end of each electric push rod, two side plates positioned at both sides of the rotary supporting table, two threaded rods are rotatably arranged at the inner sides of the two side plates, a moving frame is sleeved at the outer side of each threaded rod through threads, a driving piece for rotating the threaded rods is arranged on each side plate, a pushing piece is arranged in the moving frame, and a detection mechanism for detecting the shape of pins of the filter is arranged at the outer end of each pushing piece. When the filter with large production quantity is detected, the detection efficiency is higher.

Description

Filter quality detection device

Technical Field

The invention relates to the technical field of filter pin detection, in particular to a filter quality detection device.

Background

The filter can effectively filter the frequency point of the specific frequency in the power line or the frequencies except the frequency point to obtain a power signal of the specific frequency or eliminate the power signal of the specific frequency.

The wave filter is after production, can carry out quality testing to it usually, wherein will detect the pin on the wave filter, mainly detect the shape of pin, avoid the skew of pin, current pin detection mode is usually carried out the spot check by the quality control personnel to the product, then detect through the mode of visual inspection and touch, examine time measuring to the less wave filter of part, because the pin is less, the deformation of small amplitude is hardly observed to the naked eye, when carrying out the spot check to the more product of production, its spot check need regularly quantitative sample, lead to the spot check comparatively troublesome, and detection efficiency is lower, for this reason, we provide a wave filter quality detection device.

Disclosure of Invention

The present invention is directed to a filter quality detection apparatus capable of efficiently detecting a full filter pin, so as to solve the problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a wave filter quality detection device, includes a rotary supporting bench, a rotary supporting bench top both ends all are fixed with electric putter, just the electric putter output end is fixed with the grip block, still including two curb plates that are located a rotary supporting bench both sides, two the curb plate inboard is rotated and is installed two threaded rods, and two threaded rod outside screw thread has cup jointed and has removed the frame, install on the curb plate and be used for threaded rod pivoted driving piece, install propelling movement spare in removing the frame, just the detection mechanism that is used for wave filter pin shape to detect is installed to the propelling movement spare outer end.

Preferably, the detection mechanism includes the planking, planking top both ends all are fixed with the connecting plate, and one of them sliding plug in the connecting plate has the check rod, and another pressure sensor is installed to the connecting plate inboard, the check rod is close to the contact is installed to pressure sensor one end, the equidistance regulating part is installed to the planking inboard, just the equidistance regulating part internal fixation has a plurality of detection pieces that are used for the pin shape to detect, and the detection mechanism of design is used for the shape detection to the wave filter pin.

Preferably, the equidistance regulating part includes the tensile frame of prism, a plurality of pivot outer ends of the tensile frame of prism are fixed with a plurality of detection pieces respectively, in the tensile frame of prism one of them outer end the pivot with the planking inner wall is fixed, and the pivot outer end of another outer end is fixed with the regulating plate, the planking inboard be fixed with the track board that the regulating plate slided the butt joint, just track board internal rotation install with the lead screw of regulating plate screw-threaded grafting, the planking inboard is fixed with accommodate motor, just the accommodate motor output with the lead screw outer end is fixed, and the equidistance regulating part of design is used for the regulation to interval between a plurality of detection pieces, satisfies the shape detection to different interval pins.

Preferably, the detection piece include with the fixed detection piece of prism stretcher inner rotating shaft, open the track mouth in the detection piece, just track mouth internal fixation has two track poles, two the track pole outside slip has cup jointed the carriage release lever, just the carriage release lever top be fixed with the connecting block that the detection pole slip cup jointed, just detection pole outside screw thread cup joint with the cap that supports that the connecting block offsets, the detection piece of design is used for the detection to the pin shape, fixes in prism stretcher inner rotating shaft department simultaneously for the stretching of prism stretcher satisfies the equidistance regulation to a plurality of detection pieces.

Preferably, the carriage release lever includes contact bar and connecting rod, the carriage release lever slide peg graft in the track mouth to cup joint with two track pole slides, just the carriage release lever top is fixed with the carriage, the connecting rod top with the connecting block is fixed, and the bottom slide peg graft in the carriage, the carriage internal fixation have with the connecting axle that the connecting rod was pegged graft mutually, just connecting axle outside cover has and is used for the propelling movement spring that the connecting rod removed, track pole outside cover have with contact bar outer wall fixed extension spring mutually, through the separately design of contact bar and connecting rod for satisfy the laminating detection to different shape pins, detection effect is better.

Preferably, the top of the detection block corresponds to the position of the track opening, a limit opening is formed in the position, and a limit rod which is connected with the limit opening in an inserting mode is fixed at the bottom of the connection frame.

Preferably, the pushing member includes fixed mounting in thread bush on the planking, thread bush internal thread peg graft have with it rotates the threaded shaft of pegging graft to remove the frame, it is fixed with the propelling movement motor to remove the frame outside, just the propelling movement motor output pass through the shaft coupling with the threaded shaft is fixed, the planking with remove and be fixed with two telescopic links between the frame, through the design of pushing member for a plurality of detection pieces can remove on the pin, satisfy the detection to the pin shape.

Preferably, the top of the outer plate is fixed with a butt joint block, a butt joint groove which is spliced with the butt joint block is formed in the inner side of the movable frame, and the butt joint block and the butt joint groove are designed, so that the pushing and moving of the outer plate are more stable.

Preferably, the contact piece comprises a contact shaft in sliding insertion connection with the detection rod, a supporting plate which is abutted against the pressure sensor is fixed at the outer end of the contact shaft, a contact spring which is used for pushing the supporting plate to move outwards is sleeved on the outer side of the contact shaft, and the designed contact piece is used for the contact of the pressure sensor, so that the pressure can be changed while the detection rod can be kept in contact with the pressure sensor when moving.

Preferably, the driving piece is including fixing two the drive gear at threaded rod top, two the meshing cover in the drive gear outside has the toothed belt, just the curb plate top is fixed with driving motor, the driving motor output and one of them the threaded rod top is fixed, and the driving piece is used for driving two threaded rod synchronous rotations.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, through the mutual matching of the pushing part and the detection mechanism, the pins at two ends of the filter can be subjected to attaching detection, the pins with deflection can be effectively pointed out, compared with a mode of direct visual observation and detection by personnel, the detection of the filter with larger production quantity is met, and meanwhile, the detection accuracy and the detection efficiency are higher.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an overall side view of the present invention;

FIG. 3 is a schematic diagram of a single detection mechanism and filter docking structure according to the present invention;

FIG. 4 is a schematic view of a connection structure of a plurality of detecting elements and a plurality of pins according to the present invention;

FIG. 5 is a schematic view of the pushing member and the outer plate according to the present invention;

FIG. 6 is a schematic view of the detecting mechanism of the present invention with a partial cross-section of the internal structure;

FIG. 7 is a schematic view of an isometric adjusting member according to the present invention;

FIG. 8 is an enlarged view taken at A in FIG. 7;

FIG. 9 is a schematic view of a positional relationship between two adjacent detecting members according to the present invention;

FIG. 10 is an enlarged view of FIG. 9 at B;

FIG. 11 is a schematic view showing the positional relationship between the tension spring and the movable rod according to the present invention.

In the figure: 1-rotating the support table; 2, an electric push rod; 3-a clamping plate; 4-side plate; 5-a threaded rod; 6, moving the frame; 7-a drive member; 8-a toothed belt; 9-driving a motor; 10-a push member; 11-a detection mechanism; 12-an outer plate; 13-a connecting plate; 14-a detection rod; 15-a pressure sensor; 16-a contact; 17-equidistant adjustment; 18-a detection member; 19-prismatic stretcher; 20-adjusting plate; 21-a track slab; 22-a screw rod; 23-adjusting the motor; 24-a detection block; 25-crossing of the rail; 26-track rod; 27-a moving bar; 28-connecting blocks; 29-resisting the cap; 30-contact bar; 31-a connecting rod; 32-a connecting frame; 33-a connecting shaft; 34-a push spring; 35-a tension spring; 36-a limiting port; 37-a limiting rod; 38-thread bush; 39-a threaded shaft; 40-a push motor; 41-butt joint block; 42-a docking bay; 43-a contact shaft; 44-a resisting plate; 45-contact spring; 46-drive gear.

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.

Example 1

Referring to fig. 1-4, a filter quality detection device in the figure includes a rotary supporting table 1, electric push rods 2 are fixed at both ends of the top of the rotary supporting table 1, and a clamping plate 3 is fixed at the output end of each electric push rod 2, and the filter quality detection device further includes two side plates 4 located at both sides of the rotary supporting table 1, two threaded rods 5 are rotatably installed at the inner sides of the two side plates 4, a moving frame 6 is sleeved at the outer side of each threaded rod 5 through threads, a driving member 7 for rotating the threaded rods 5 is installed on each side plate 4, a pushing member 10 is installed in each moving frame 6, and a detection mechanism 11 for detecting the pin shape of the filter is installed at the outer end of each pushing member 10.

It should be noted that: in this scheme, the rotary supporting platform 1 of design is used for the support to the wave filter, cooperates the interact of electric putter 2 and two grip blocks 3 simultaneously, realizes making its location more stable to the centre gripping of wave filter, and rotary supporting platform 1 satisfies the rotation to the wave filter simultaneously for the pin at both ends detects more conveniently.

It is worth noting that: the lateral plate 4 can be fixed through the supporting rod, the threaded rod 5 designed in the lateral plate 4 rotates, the movable frame 6 can be driven to move up and down, and the pushing part 10 in the movable frame 6 can be used for adjusting the position of the detection part 18 and detecting the attachment of pins.

Referring to fig. 3-7, the detection mechanism 11 shown in the figure includes an outer plate 12, connecting plates 13 are fixed at both ends of the top of the outer plate 12, a detection rod 14 is inserted in one of the connecting plates 13 in a sliding manner, a pressure sensor 15 is installed inside the other connecting plate 13, a contact piece 16 is installed at one end of the detection rod 14 close to the pressure sensor 15, an equidistant adjustment piece 17 is installed inside the outer plate 12, and a plurality of detection pieces 18 for detecting the shape of the pins are fixed inside the equidistant adjustment piece 17;

it should be noted that: the detection rod 14 is designed to be in contact with the pressure sensor 15, so that a pressure value can be obtained, the detection piece 18 is attached to the outer wall of the pin to move, the detection rod 14 can be pushed and adjusted according to the shape of the pin, the pressure value can be increased, and the deformation of the pin can be detected;

it is worth noting that: the pressure sensor 15 of the present embodiment is an existing sensing device, and detects pressure by the force of contact.

It should be noted that: the contact piece 16 comprises a contact shaft 43 in sliding insertion with the detection rod 14, a butting plate 44 butted against the pressure sensor 15 is fixed at the outer end of the contact shaft 43, a contact spring 45 used for pushing the butting plate 44 to move outwards is sleeved on the outer side of the contact shaft 43, and the contact shaft 43 and the contact spring 45 are designed to interact with each other, so that the detection rod 14 can drive the contact shaft 43 to stretch and retract when moving, and the extrusion force degree of the contact shaft and the pressure sensor 15 is changed;

referring to fig. 6-8, the equidistant adjusting member 17 in the figure includes a prismatic stretching frame 19, the outer ends of a plurality of rotating shafts of the prismatic stretching frame 19 are respectively fixed with a plurality of detecting members 18, one outermost rotating shaft in the prismatic stretching frame 19 is fixed with the inner wall of the outer plate 12, the outer end of the other outermost rotating shaft is fixed with an adjusting plate 20, the inner side of the outer plate 12 is fixed with a track plate 21 in sliding butt joint with the adjusting plate 20, the track plate 21 is rotatably provided with a screw rod 22 in threaded connection with the adjusting plate 20, the inner side of the outer plate 12 is fixed with an adjusting motor 23, and the output end of the adjusting motor 23 is fixed with the outer end of the screw rod 22;

it should be noted that: the accommodate motor 23 of design rotates, drives lead screw 22 and rotates for regulating plate 20 removes along lead screw 22, thereby drives the tensile frame 19 one end of prism and outwards pulls, thereby drives the tensile frame 19 of prism and wholly pulls open, and makes wherein a plurality of pivot equidistance distribute, thereby makes a plurality of detection pieces 18 register and distribute, satisfies the detection to different interval pins, makes and is applicable to more models and gets filter pin detection.

Meanwhile, referring to fig. 9-11, the detecting element 18 shown in the drawings includes a detecting block 24 fixed to the inner rotating shaft of the prismatic stretching frame 19, a track opening 25 is formed in the detecting block 24, two track rods 26 are fixed in the track opening 25, a moving rod 27 is slidably sleeved outside the two track rods 26, a connecting block 28 slidably sleeved with the detecting rod 14 is fixed on the top of the moving rod 27, and an abutting cap 29 abutting against the connecting block 28 is threadedly sleeved outside the detecting rod 14;

it should be noted that: the moving rod 27 is attached to the outer wall of the pin through design, and then the moving rod 27 is driven to move along the pin through the movement of the detection block 24, so that the shape of the pin can be detected.

It is worth noting that: when the detection to different interval pins, stretch the back through the tensile frame 19 of prism, detect the piece 24 and can correspond and pull open, connecting block 28 this moment not with support the cap 29 and laminate mutually, at this moment, personnel support the cap 29 through rotating for it is laminated again with the connecting block 28 after removing, satisfies the detection to the pin.

Referring to fig. 9 and 10, the moving rod 27 shown in the figure includes a contact rod 30 and a connecting rod 31, the moving rod 27 is inserted into the rail opening 25 in a sliding manner and is slidably sleeved with the two rail rods 26, a connecting frame 32 is fixed at the top of the moving rod 27, the top of the connecting rod 31 is fixed with a connecting block 28, the bottom of the connecting rod 31 is inserted into the connecting frame 32 in a sliding manner, a connecting shaft 33 inserted into the connecting rod 31 is fixed in the connecting frame 32, a pushing spring 34 for pushing the connecting rod 31 to move is sleeved outside the connecting shaft 33, and a tension spring 35 fixed with the outer wall of the contact rod 30 is sleeved outside the rail rods 26;

it should be noted that: the designed contact rod 30 is attached to pins, the connecting block 28 at the top of the connecting rod 31 is sleeved with the detection rod 14, the contact rod 30 can move after being attached to the pins through the detection block 24 and along with the pushing movement of the outer plate 12, so that the contact rod 30 can move after being attached to the pins, the attachment of the outer sides of the pins is realized, when the pins incline towards the contact rod 30, the contact rod 30 can move along the inclined detection block 24 and along with the rail port 25 along with the movement of the detection block 24, at the moment, the connecting frame 32 can be driven to move, the connecting rod 31 can move along the detection rod 14, the abutting cap 29 at the outer side of the detection rod 14 is pushed, the contact piece 16 at the outer end of the detection rod 14 is extruded, the pressure sensor 15 is extruded to enable the pressure value to be too high, and the deformed pins can be detected at the moment;

it is also to be said that: keep away from the contact lever 30 of laminating in the crooked direction of pin, along with contact lever 30 removes the back along the pin this moment, can not offset to the cap 29, then through shifting up of contact lever 30, rethread rotary supporting platform 1 is rotatory rotates 180 to the wave filter, later laminates the removal once more to the pin, and at this moment, the pin of previous skew can be detected by the detection piece 18 of the other end to can overhaul the detection to the pin of deformation.

In addition, referring to fig. 5 and 6, the pushing member 10 shown in the figure includes a threaded sleeve 38 fixedly mounted on the outer plate 12, a threaded shaft 39 rotatably inserted into the movable frame 6 is inserted into the threaded sleeve 38, a pushing motor 40 is fixed on the outer side of the movable frame 6, the output end of the pushing motor 40 is fixed with the threaded shaft 39 through a coupler, and two telescopic rods are fixed between the outer plate 12 and the movable frame 6;

it should be noted that: through the rotation of propelling movement motor 40, drive threaded shaft 39 and rotate to make threaded shaft 39 can stretch out and draw back at thread bush 38, carry out the propelling movement to planking 12, realize the regulation to the detection piece 18 position, make the detection piece 18 can be along the removal in the pin outside.

In addition, referring to fig. 1 and fig. 3, the driving member 7 shown in the figure comprises driving gears 46 fixed on the tops of the two threaded rods 5, the outer sides of the two driving gears 46 are engaged and sleeved with toothed belts 8, the top of the side plate 4 is fixed with a driving motor 9, and the output end of the driving motor 9 is fixed with the top of one of the threaded rods 5;

it should be noted that the threaded rod 5 is driven to rotate by the rotation of the driving motor 9, and the two driving gears 46 and the toothed belt 8 interact with each other, so that the two threaded rods 5 rotate synchronously, and the up-and-down movement adjustment of the movable frame 6 is facilitated.

The principle of detecting the pins of the filter is realized as follows: firstly, a person takes a filter for spot inspection and places the filter on a rotary support table 1, the electric push rod 2 clamps two clamping plates 3 to the filter, then the driving motor 9 rotates to drive the threaded rod 5 to rotate, so that the moving frame 6 moves downwards, the contact rods 30 are sequentially inserted between the pins, the contact rods 30 are attached to the outer sides of the pins, under the action of the tension spring 35, the contact rods 30 can be tightly attached to the outer walls of the pins, then the threaded shaft 39 rotates along with the driving of the pushing motor 40, so that the threaded sleeve 38 drives the outer plate 12 to move the contact rods 30 along the pins, when the pins are inclined towards the direction of the contact rods 30, at the moment, the contact rods 30 move along with the movement of the contact rods 30, the pins attached to the inclined pins move and move along the rail opening 25, so that the connecting rod 31 moves along the detection rod 14, the abutting cap 29 is driven to move, so that the pressure sensor 15 is extruded, and large pressure is measured, so that an alarm is given out, the detection of the inclined pins is realized, the inclined pins face to one side of the contact rod 30 away from the joint in the inclined direction of the pins, at the moment, the movable frame 6 is controlled to move upwards, the rotary support table 1 drives the filter to rotate 180 degrees, then the pins are detected through the contact rod 30, and the contact rod 30 at the other end detects the inclined pins;

when the pin is straight, the contact rod 30 moves along the pin at the moment, the detection rod 14 cannot be pushed, the pressure sensor 15 cannot be extruded by external force, the pressure value is in a certain range, and therefore an alarm is not given.

When filters of different models are detected: because the interval is different between the wave filter pin of different models, at this moment, rotates through accommodate motor 23, drives lead screw 22 and rotates for regulating plate 20 moves outward, thereby drives the tensile frame 19 of prism and carries out tensile removal, drives a plurality of measuring pieces 18 equidistance and adjusts, satisfies the laminating detection to different interval pins, and personnel rotate a plurality of caps 29 that support simultaneously, make a plurality of caps 29 that support all offset with connecting block 28.

Example 2

Referring to fig. 10, in this embodiment, for further explanation of embodiment 1, a position corresponding to the rail opening 25 on the top of the detection block 24 in the figure is provided with a limit opening 36, and the bottom of the connection frame 32 is fixed with a limit rod 37 inserted into the limit opening 36;

it should be noted that: through the designed interaction of the limiting opening 36 and the limiting rod 37 inserted into the limiting opening 36, the connecting frame 32 is more stable when moving, and the adjustment of the contact rod 30 is more stable.

Example 3

Referring to fig. 4, in the present embodiment, for further explanation of other embodiments, a docking block 41 is fixed on the top of the outer plate 12 in the figure, and a docking slot 42 is formed on the inner side of the movable frame 6 and is inserted into the docking block 41.

It should be noted that: the designed butt-joint block 41 and butt-joint groove 42 are mutually matched, so that the outer plate 12 is more stable when moving back and forth, and the movement of the contact rod 30 is more stable.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. A filter quality detection apparatus comprising:

the device comprises a rotary supporting table (1), wherein electric push rods (2) are fixed at two ends of the top of the rotary supporting table (1), and a clamping plate (3) is fixed at the output end of each electric push rod (2);

it is characterized by also comprising:

two curb plates (4), two that are located rotatory brace table (1) both sides curb plate (4) inboard is rotated and is installed two threaded rods (5), and two threaded rod (5) outside screw thread has cup jointed and has removed frame (6), install on curb plate (4) and be used for threaded rod (5) pivoted driving piece (7), install propelling part (10) in removing frame (6), just detection mechanism (11) that are used for wave filter pin shape to detect are installed to propelling part (10) outer end.

2. A filter quality detection apparatus according to claim 1, wherein: detection mechanism (11) include planking (12), planking (12) top both ends all are fixed with connecting plate (13), and one of them sliding plug in connecting plate (13) has test bar (14), another pressure sensor (15) are installed to connecting plate (13) inboard, test bar (14) are close to contact (16) are installed to pressure sensor (15) one end, equidistance regulating part (17) are installed to planking (12) inboard, just equidistance regulating part (17) internal fixation has a plurality of detection pieces (18) that are used for pin shape to detect.

3. A filter quality detection apparatus according to claim 2, wherein: equidistance regulating part (17) are including the tensile frame of prism (19), a plurality of pivot outer ends of the tensile frame of prism (19) are fixed with a plurality of detection pieces (18) respectively, in the tensile frame of prism (19) one of them outer end the pivot with planking (12) inner wall is fixed, and the pivot outer end of another outer end is fixed with regulating plate (20), planking (12) inboard be fixed with track board (21) that regulating plate (20) slided the butt joint, just track board (21) internal rotation install with lead screw (22) of regulating plate (20) screw thread grafting, planking (12) inboard is fixed with adjusting motor (23), just adjusting motor (23) output with lead screw (22) outer end is fixed.

4. A filter quality detection apparatus according to claim 2, wherein: detect piece (18) include with fixed detection piece (24) of pivot in prism tensile frame (19), it has track mouth (25) to open in detection piece (24), just track mouth (25) internal fixation has two track poles (26), two track pole (26) outside slip has cup jointed carriage release lever (27), just carriage release lever (27) top be fixed with detect connecting block (28) that pole (14) slip cup jointed, just detect pole (14) outside screw thread cup joint with connecting block (28) counterbalance support cap (29).

5. The filter quality detection apparatus according to claim 4, wherein: removal pole (27) are including touch bar (30) and connecting rod (31), removal pole (27) slide peg graft in track road junction (25) to slip with two track poles (26) and cup joint, just removal pole (27) top is fixed with connecting block (32), connecting rod (31) top with connecting block (28) are fixed, and the bottom slide peg graft in connecting block (32), connecting block (32) internal fixation have with connecting axle (33) that connecting rod (31) peg graft mutually, just connecting axle (33) outside cover has and is used for the propelling movement spring (34) that connecting rod (31) removed, track pole (26) outside cover have with touch bar (30) outer wall fixed extension spring (35) mutually.

6. The filter quality detection apparatus according to claim 4, wherein: the top of the detection block (24) is provided with a limit opening (36) corresponding to the position of the rail opening (25), and the bottom of the connection frame (32) is fixed with a limit rod (37) which is spliced with the limit opening (36).

7. A filter quality detection apparatus according to claim 2, wherein: propelling movement spare (10) including fixed mounting in thread bush (38) on planking (12), thread bush (38) internal thread peg graft have with remove frame (6) and rotate screw shaft (39) of pegging graft, remove frame (6) outside and be fixed with propelling movement motor (40), just propelling movement motor (40) output pass through the shaft coupling with screw shaft (39) are fixed, planking (12) with it is fixed with two telescopic links to remove between frame (6).

8. A filter quality detection apparatus according to claim 2, wherein: the top of the outer plate (12) is fixed with a butt joint block (41), and the inner side of the movable frame (6) is provided with a butt joint groove (42) which is spliced with the butt joint block (41).

9. A filter quality detection apparatus according to claim 2, wherein: the contact piece (16) comprises a contact shaft (43) which is in sliding insertion connection with the detection rod (14), a supporting plate (44) which is abutted against the pressure sensor (15) is fixed at the outer end of the contact shaft (43), and a contact spring (45) which is used for pushing the supporting plate (44) to move outwards is sleeved on the outer side of the contact shaft (43).

10. A filter quality detection apparatus according to claim 1, wherein: driving piece (7) are including fixing two drive gear (46) at threaded rod (5) top, two drive gear (46) outside meshing cover has toothed belt (8), just curb plate (4) top is fixed with driving motor (9), driving motor (9) output and one of them threaded rod (5) top is fixed.

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