Sectional type laser gas screening and filtering mechanism

Abstract

The invention discloses a sectional type laser gas screening and filtering mechanism, and relates to the technical field of laser gas screening and filtering. Comprising a vertical frame which is provided with a translation mechanism; the sleeve is fixedly arranged, connecting openings are formed in the two sides of the sleeve, and the two connecting openings are connected with conveying channels used for air inlet and air outlet correspondingly; the filter cartridge is mounted on the inner wall of the sleeve in a sliding manner, and two filter cavities are formed in the filter cartridge. In the laser gas conveying process, solid impurities mixed in gas can be blocked to a certain degree, so that the filtering effect is achieved, after a certain period of time, based on work of the translation mechanism, the filter cylinder is driven to move, the position of the filtering cavity is switched, then the annular elastic bag is extruded through the extrusion part, the gas enters the columnar gas bag, and the gas is filtered. The columnar air bag is promoted to expand, so that solid impurities attached to the columnar air bag are shaken off and are discharged from the opened discharge door; and the operation is repeated, so that self-cleaning of the filtering cavity is realized, and the reliability is improved.

Description

Technical Field

[0001] The invention relates to the technical field of laser gas filtering, and in particular to a segmented laser gas filtering mechanism. Background Art

[0002] In modern industrial production, laser technology is widely used in various fields, such as cutting, welding, engraving, etc. However, in these applications, the quality of laser gas directly affects the processing effect and equipment life. In addition, in the field of detection, when testing laser gas, the solid impurities contained in it will also affect the detection results; therefore, it is very important to effectively filter the laser gas.

[0003] After searching, the application scheme of Chinese patent application number CN202320913907.1 discloses an airflow segmented screening mechanism of a laser gas analyzer, including a box, a fan, an air inlet pipe, a laser gas analysis device, an exhaust pipe and a support plate. The interior of the box is provided with a screening mechanism, and the screening mechanism includes an input pipe fixedly installed at the output end of the fan, a connecting seat is fixedly connected to the right outer wall of the input pipe, a primary filter is fixedly installed on the top inner wall of the connecting seat, and a collection bucket is slidably connected to the interior of the connecting seat. The airflow segmented screening mechanism in the above-mentioned document has the following shortcomings: although it can meet the filtering requirements, it cannot perform self-cleaning and needs to be improved. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a segmented laser gas filtering mechanism.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A segmented laser gas filtering mechanism, comprising:

[0007] A stand, on which a translation mechanism is installed;

[0008] The sleeve is fixedly arranged, and connecting ports are arranged on both sides of the sleeve, and the two connecting ports are respectively connected to the conveying channels for air inlet and air outlet;

[0009] The filter cartridge is slidably mounted on the inner wall of the sleeve. Two filter chambers are arranged in the filter cartridge. The two filter chambers are separated by a partition. Through holes matching the position of the connection port are opened on both sides of the filter chamber of the filter cartridge. The two ends of the filter cartridge are mounted on the translation mechanism through a connecting rod. The translation mechanism is used to control the translation of the filter cartridge to realize the switching of the two filter chambers in the filter cartridge. A discharge door matching the shape of the filter cartridge is arranged at the bottom of the filter cartridge.

[0010] Baffles are fixed on both sides of the sleeve, and the positions of the baffles are adapted to the through openings;

[0011] A hollow shaft, an end plate is fixed at the end of the hollow shaft, and the end plate seals and rotates at the end of the filter cartridge; a plurality of equally spaced hollow rods are arranged outside the hollow shaft, a columnar airbag is installed outside the hollow rod, a plurality of air holes are opened on the hollow rod, and the inside of the columnar airbag is connected to the inside of the hollow shaft through the hollow rod;

[0012] A connecting seat is installed on the end plate, a mounting shaft is fixed to an outer wall of one side of the connecting seat, and the mounting shaft is rotatably installed on the translation mechanism;

[0013] An annular elastic bag is installed on the end plate, and the annular elastic bag is connected to the inside of the hollow shaft through the air port of the connecting seat;

[0014] An extrusion part, which is arranged on the movement path of the filter cartridge and works based on the translation mechanism to drive the filter cartridge to move, so that the extrusion part squeezes the corresponding annular elastic bag;

[0015] The rotation driving part is used to drive the hollow shaft to rotate.

[0016] As a preferred embodiment of the present invention: an inner bracket is fixed to the inner wall of the filter cartridge, a mounting rod is rotatably mounted on the inner bracket, the mounting rod and the inner bracket are connected by a clockwork spring, a plurality of equidistantly distributed vertical poles are fixed to the outer wall on one side of the mounting rod, the vertical poles and the columnar airbags are staggered; a plurality of convex bags are arranged on the side of the columnar airbag.

[0017] As a preferred embodiment of the present invention: the translation mechanism includes:

[0018] A translation control screw rod, the translation control screw rod is rotatably mounted on the stand;

[0019] The movable seat is connected to the outer wall of the translation control screw rod through threads, and a translation driving part for driving the translation control screw rod to rotate is arranged on one side of the vertical frame.

[0020] As a preferred embodiment of the present invention: the translation driving unit includes:

[0021] A second driving motor, the second driving motor is installed on the stand;

[0022] The second gear transmission assembly, the output end of the second drive motor is connected to the translation control screw through the second drive motor.

[0023] As a preferred embodiment of the present invention: the rotation driving unit includes:

[0024] A first driving motor, the first driving motor is installed on the moving base;

[0025] The first gear transmission assembly, the output end of the first driving motor is connected to the installation shaft through the first gear transmission assembly, and the installation shaft is rotatably installed on the moving seat.

[0026] As a preferred embodiment of the present invention: a connecting frame is fixed on the sleeve, and matching magnetic blocks are installed on the connecting frame and the discharge door; the discharge door is installed on the filter cartridge through a spring hinge.

[0027] As a preferred embodiment of the present invention: the extrusion portion includes:

[0028] A mounting frame, the mounting frame is mounted on the stand;

[0029] An adjustment frame, the adjustment frame is slidably mounted on the mounting frame, and a fixing knob for fixing the adjustment frame is threadedly connected to the mounting frame;

[0030] An extrusion plate is fixed to the end of the adjustment frame.

[0031] As a preferred embodiment of the present invention: an annular fixing seat is fixed to the outer wall of one side of the annular elastic bag, and an annular rotating seat is rotatably mounted on the outer wall of one side of the annular fixing seat.

[0032] As a preferred embodiment of the present invention: a matching annular groove is provided on one side adjacent to the annular fixing seat and the connecting port, and a plurality of balls are movably installed in the annular groove; and the extrusion plate is located on the translation path of the annular rotating seat.

[0033] As a preferred embodiment of the present invention: a mounting groove is provided in the conveying channel, a sieve plate is movably installed in the mounting groove, and sieve holes are provided on the sieve plate; a pull handle is provided at the end of the sieve plate, a stopper is fixed at the end of the sieve plate, and the width of the stopper is greater than the width of the mounting groove; the length of the sieve plate is greater than or equal to twice the width of the conveying channel; a side bracket is fixed on the conveying channel, and a brush head is provided on the side of the side bracket close to the sieve plate.

[0034] The beneficial effects of the present invention are:

[0035] 1. The present invention can block solid impurities mixed in the gas to a certain extent during the laser gas delivery process by arranging structures such as a filter cartridge, a sleeve, a hollow shaft, and a cylindrical airbag, thereby achieving a filtering effect. After a certain period of time, based on the operation of the translation mechanism, the filter cartridge is driven to move, the position of the filter chamber is switched, and then the annular elastic bag is squeezed by the extrusion part, and the gas enters the cylindrical airbag, causing the cylindrical airbag to expand, thereby shaking off the solid impurities attached to the cylindrical airbag and discharging them from the opened discharge door; this is repeated to achieve self-cleaning of the filter chamber and improve reliability.

[0036] 2. The cylindrical airbags, annular elastic bags and other structures of the present invention do not require high precision. Compared with rigid structures, they greatly reduce the risk of equipment collision damage and reduce production and maintenance costs.

[0037] 3. The present invention can enhance the blocking effect by arranging structures such as vertical poles and convex bags, and during cleaning, the convex bags can expand and extend to both sides of the columnar airbags. Furthermore, during the rotation process, the convex bags can periodically contact the vertical poles to make both vibrate, which can further promote the falling of attached solid impurities and enhance reliability.

[0038] 4. The present invention provides a magnetic block, which can control the discharge door to open based on the magnetic attraction when the corresponding filter chamber of the filter cartridge is moved out. When the filter chamber is moved into the sleeve, the magnetic attraction is lost and the spring hinge is reset to achieve structural closure.

[0039] 5. The present invention provides structures such as an annular fixed seat and an annular rotating seat, so that during the extrusion process, the annular rotating seat can rotate on the annular fixed seat, thereby avoiding structural jamming and improving reliability.

[0040] 6. The present invention can filter the gas passing through the conveying channel by providing structures such as sieve plates. When cleaning is required, the sieve plates can be pulled out to facilitate the removal and cleaning of the parts with impurities attached, thereby improving practicality. By providing the sieve plates and brush heads, auxiliary cleaning can be performed during the pulling and drawing process, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 A schematic diagram of the structure of a segmented laser gas filtering mechanism proposed by the present invention;

[0042] Figure 2 A schematic diagram of the structure of a sieve plate of a segmented laser gas filtration mechanism proposed by the present invention;

[0043] Figure 3 A schematic diagram of the structure of a segmented laser gas filtration mechanism proposed by the present invention in which an extrusion plate extrudes an annular elastic bag;

[0044] Figure 4 This is a schematic diagram of the structure of the cooperation between the filter cartridge and the sleeve of a segmented laser gas filtering mechanism proposed by the present invention;

[0045] Figure 5 This is a schematic structural diagram of a sectional view of a filter cartridge of a segmented laser gas filtration mechanism proposed by the present invention;

[0046] Figure 6 This is a schematic structural diagram of a segmented laser gas filtration mechanism including an annular fixed seat, an annular rotating seat, and an annular elastic bag in cross section;

[0047] Figure 7 This is a schematic structural diagram of a segmented laser gas filtering mechanism including a columnar airbag and a hollow rod in cross section.

[0048] In the figure: 1 stand, 2 handle, 3 moving seat, 4 side bracket, 5 conveying channel, 6 sieve plate, 7 brush head, 8 sieve hole, 9 block, 10 filter cartridge, 11 first gear transmission assembly, 12 first drive motor, 13 fixed knob, 14 adjustment frame, 15 extrusion plate, 16 receiving box, 17 support frame, 18 mounting frame, 19 second gear transmission assembly, 20 second drive motor, 21 baffle, 22 translation control screw, 23 sleeve, 24 connecting port, 25 connecting frame, 26 magnetic suction block, 27 annular elastic bag, 28 partition, 29 mounting rod, 30 columnar air bag, 31 through port, 32 stand, 33 annular fixed seat, 34 annular rotating seat, 35 connecting seat, 36 ball, 37 inner bracket, 38 discharge door, 39 hollow shaft, 40 convex bag, 41 hollow rod. DETAILED DESCRIPTION

[0049] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0050] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0051] Embodiment 1:

[0052] A segmented laser gas filtering mechanism, such as Figure 1-Figure 7 As shown, including:

[0053] A stand 1, on which a translation mechanism is installed;

[0054] The sleeve 23 is fixedly arranged and can be fixed on the stand 1 or other positions, which are not limited here. The sleeve 23 is provided with connecting ports 24 on both sides, and the two connecting ports 24 are respectively connected to the conveying channels 5 for air intake and air outlet;

[0055] The filter cartridge 10 is slidably mounted on the inner wall of the sleeve 23. Two filter chambers are arranged in the filter cartridge 10. The two filter chambers are separated by a partition 28. Through ports 31 are provided on both sides of the filter chamber of the filter cartridge 10 to match the position of the connection port 24. When the corresponding filter chamber moves to the inner side of the filter cartridge 10, the two connection ports 24 are connected through the filter chamber. Both ends of the filter cartridge 10 are mounted on the translation mechanism through a connecting rod. The translation mechanism is used to control the translation of the filter cartridge 10 to realize the switching of the two filter chambers in the filter cartridge 10. A discharge door 38 matching the shape of the filter cartridge 10 is provided at the bottom of the filter cartridge 10.

[0056] Baffle 21, baffle 21 is fixed on both sides of sleeve 23, the position of baffle 21 is adapted to the through opening 31, when a filter cavity leaves the filter cartridge 10, baffle 21 can close the through opening 31 of the filter cavity;

[0057] A hollow shaft 39, an end plate is fixed at the end of the hollow shaft 39, and the end plate is sealed and rotated at the end of the filter cartridge 10; a plurality of equally spaced hollow rods 41 are arranged outside the hollow shaft 39, a columnar airbag 30 is installed outside the hollow rod 41, a plurality of air holes are opened on the hollow rod 41, and the inside of the columnar airbag 30 is connected to the inside of the hollow shaft 39 through the hollow rod 41;

[0058] A connecting seat 35, the connecting seat 35 is installed on the end plate, a mounting shaft is fixed to an outer wall of one side of the connecting seat 35, and the mounting shaft is rotatably installed on the translation mechanism;

[0059] An annular elastic bag 27, the annular elastic bag 27 is installed on the end plate, and the annular elastic bag 27 is connected to the inside of the hollow shaft 39 through the air port of the connecting seat 35;

[0060] The extrusion part is arranged on the movement path of the filter cartridge 10 and drives the filter cartridge 10 to move based on the translation mechanism, so that the extrusion part squeezes the corresponding annular elastic bag 27;

[0061] A rotation driving unit, the rotation driving unit is used to drive the hollow shaft 39 to rotate;

[0062] A support frame 17 is installed on the stand 1, and a receiving box 16 is detachably installed in the support frame 17;

[0063] By setting up structures such as the filter cartridge 10, the sleeve 23, the hollow shaft 39, the columnar airbag 30, etc., the solid impurities mixed in the gas can be blocked to a certain extent during the laser gas delivery process, thereby achieving a filtering effect. After a certain period of time, based on the operation of the translation mechanism, the filter cartridge 10 is driven to move, the position of the filter chamber is switched, and then the annular elastic bag 27 is squeezed by the extrusion part, and the gas enters the columnar airbag 30, causing the columnar airbag 30 to expand, thereby shaking off the solid impurities attached to the columnar airbag 30 and discharging them from the opened discharge door 38; this is repeated to achieve self-cleaning of the filter chamber and improve reliability.

[0064] In order to improve the filtering effect; Figure 6 As shown, an inner bracket 37 is fixed to the inner wall of the filter cartridge 10, a mounting rod 29 is rotatably mounted on the inner bracket 37, the mounting rod 29 and the inner bracket 37 are connected by a spring, a plurality of equally spaced vertical rods 32 are fixed to the outer wall of one side of the mounting rod 29, the vertical rods 32 and the columnar airbags 30 are staggered; a plurality of convex bags 40 are arranged on the side of the columnar airbags 30;

[0065] By providing structures such as the vertical pole 32 and the convex bag 40, the blocking effect can be improved by utilizing the cooperation of the vertical pole 32, and during cleaning, the convex bag 40 can expand and extend to both sides of the columnar airbag 30. Then, during the rotation process, the convex bag 40 is used to periodically contact the vertical pole 32 to make the two vibrate, which can further promote the falling of solid impurities attached to the inner wall of the structure, thereby improving reliability.

[0066] Among them, a joint is provided on the circumferential outer wall of the hollow shaft 39, and the cylindrical airbag 30 can be detachably connected to the joint of the hollow shaft 39 through a clamp ring, and the cylindrical airbag 30 is used as a detachable accessory, which is easy to maintain and replace;

[0067] In addition, in order to achieve better filtering, the surface of the columnar airbag 30 and other locations may also use materials that are easier to adhere to impurities or other means that facilitate filtering. For details, please refer to the existing technology and will not be described in detail here.

[0068] In the present invention, structures such as the cylindrical airbag 30 and the annular elastic bag 27 do not require high precision. Compared with rigid structures, the risk of equipment collision damage is greatly reduced, and the production cost and maintenance cost are reduced.

[0069] In order to facilitate the translation of the drive structure; Figure 3 As shown, the translation mechanism comprises:

[0070] A translation control screw 22, the translation control screw 22 is rotatably mounted on the stand 1;

[0071] The movable seat 3 is connected to the outer wall of the translation control screw 22 through threads, and a translation driving part for driving the translation control screw 22 to rotate is arranged on one side of the stand 1.

[0072] In order to facilitate the driving translation control screw 22 to rotate; Figure 3 As shown, the translation driving unit includes:

[0073] A second driving motor 20, the second driving motor 20 is mounted on the stand 1;

[0074] The second gear transmission assembly 19 and the output end of the second drive motor 20 are transmission-connected to the translation control screw 22 through the second drive motor 20 .

[0075] In order to facilitate the driving of the hollow shaft 39 to rotate; Figure 3 As shown, the rotation driving unit includes:

[0076] A first driving motor 12, the first driving motor 12 is installed on the moving base 3;

[0077] The first gear transmission assembly 11, the output end of the first driving motor 12 is in transmission connection with the mounting shaft through the first gear transmission assembly 11. The moving seat 3 is integrally in a "C" - shaped structure with an opening downward, and the mounting shaft is rotatably mounted on the moving seat 3.

[0078] To facilitate opening the discharge door 38, as Figure 4 、 Figure 5 shown, a connecting frame 25 is fixed on the sleeve 23, and magnet - attracting blocks 26 which are adapted to each other are installed on the connecting frame 25 and the discharge door 38; the discharge door 38 is installed on the filter cartridge 10 through a spring hinge;

[0079] By arranging the magnet - attracting blocks 26, when the corresponding filter cavity of the filter cartridge 10 is moved out, the discharge door 38 can be controlled to open based on the magnetic attraction force. During the process of the filter cavity moving into the sleeve 23, the magnetic attraction force is lost, and it is reset based on the spring hinge to achieve the closing of the structure.

[0080] To facilitate adjusting the extrusion position; as Figure 3 、 Figure 4 shown, the extrusion part includes:

[0081] A mounting frame 18, the mounting frame 18 is installed on the vertical frame 1;

[0082] An adjusting frame 14, the adjusting frame 14 is slidably installed on the mounting frame 18, and a fixing knob 13 for fixing the adjusting frame 14 is connected to the mounting frame 18 by threads;

[0083] An extrusion plate 15, the extrusion plate 15 is fixed to the end of the adjusting frame 14.

[0084] To improve reliability; as Figure 6 shown, one outer wall of one side of the annular elastic bladder 27 is fixed with an annular fixing seat 33, and an annular rotating seat 34 is rotatably installed on one outer wall of one side of the annular fixing seat 33.

[0085] To improve the smoothness of movement; as Figure 6 shown, an annular groove which is adapted to each other is opened on the adjacent side of the annular fixing seat 33 and the connection port 24, and a plurality of balls 36 are movably installed in the annular groove; the extrusion plate 15 is located on the translation path of the annular rotating seat 34;

[0086] By arranging structures such as the annular fixing seat 33 and the annular rotating seat 34, during the extrusion process, the annular rotating seat 34 can rotate on the annular fixing seat 33, avoiding the jamming of the structure and improving the reliability.

[0087] To improve the filtering effect; as Figure 2As shown, the conveying channel 5 is provided with a mounting groove, in which a sieve plate 6 is movably mounted, and a sieve hole 8 is provided on the sieve plate 6; a pull handle 2 is provided at the end of the sieve plate 6, and a stopper 9 is fixed at the end of the sieve plate 6, and the width of the stopper 9 is greater than the width of the mounting groove; the length of the sieve plate 6 is greater than or equal to twice the width of the conveying channel 5;

[0088] By providing structures such as the sieve plate 6, the gas passing through the conveying channel 5 can be filtered. When cleaning is required, the sieve plate 6 can be pulled out to remove and clean the part with impurities attached, thereby improving practicality.

[0089] To facilitate cleaning; Figure 2 As shown, a side bracket 4 is fixed on the conveying channel 5, and a brush head 7 is provided on one side of the side bracket 4 close to the screen plate 6;

[0090] By providing the sieve plate 6 and the brush head 7, auxiliary cleaning can be performed during the pulling process, thereby improving practicality.

[0091] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A segmented laser gas filtering mechanism, characterized in that: include: A stand (1), wherein a translation mechanism is installed on the stand (1); The sleeve (23) is fixedly arranged, and connecting ports (24) are arranged on both sides of the sleeve (23), and the two connecting ports (24) are respectively connected to the conveying channels (5) for air intake and air outlet; A filter cartridge (10), the filter cartridge (10) is slidably mounted on the inner wall of the sleeve (23), two filter chambers are arranged in the filter cartridge (10), the two filter chambers are separated by a partition (28), and through openings (31) adapted to the position of the connection port (24) are opened on both sides of the filter chamber of the filter cartridge (10); both ends of the filter cartridge (10) are mounted on a translation mechanism through a connecting rod, and the translation mechanism is used to control the translation of the filter cartridge (10) to realize the switching of the two filter chambers in the filter cartridge (10); a discharge door (38) adapted to the shape of the filter cartridge (10) is arranged at the bottom of the filter cartridge (10); Baffles (21), the baffles (21) are fixed on both sides of the sleeve (23), and the position of the baffles (21) is adapted to the through opening (31); A hollow shaft (39), an end plate is fixed at the end of the hollow shaft (39), and the end plate is sealed and rotated on the end of the filter cartridge (10); a plurality of hollow rods (41) are arranged at equal intervals on the outside of the hollow shaft (39), a columnar airbag (30) is installed on the outside of the hollow rod (41), a plurality of air holes are opened on the hollow rod (41), and the interior of the columnar airbag (30) is connected to the interior of the hollow shaft (39) through the hollow rod (41); A connecting seat (35), the connecting seat (35) is mounted on the end plate, a mounting shaft is fixed to one side outer wall of the connecting seat (35), and the mounting shaft is rotatably mounted on the translation mechanism; An annular elastic bag (27), the annular elastic bag (27) is installed on the end plate, and the annular elastic bag (27) is connected to the inside of the hollow shaft (39) through the air port of the connecting seat (35); An extrusion part, which is arranged on the movement path of the filter cartridge (10) and drives the filter cartridge (10) to move based on the operation of the translation mechanism, thereby causing the extrusion part to squeeze the corresponding annular elastic bag (27); The rotation driving part is used to drive the hollow shaft (39) to rotate.

2. A segmented laser gas filtering mechanism according to claim 1, characterized in that: An inner bracket (37) is fixed on the inner wall of the filter cartridge (10), a mounting rod (29) is rotatably mounted on the inner bracket (37), the mounting rod (29) and the inner bracket (37) are connected via a spring, a plurality of equally spaced vertical rods (32) are fixed on the outer wall of one side of the mounting rod (29), the vertical rods (32) and the columnar airbags (30) are arranged in an alternating manner; a plurality of convex bags (40) are arranged on the side of the columnar airbags (30).

3. A segmented laser gas filtering mechanism according to claim 2, characterized in that: The translation mechanism comprises: A translation control screw (22), the translation control screw (22) is rotatably mounted on the stand (1); The movable seat (3) is connected to the outer wall of the translation control screw (22) through threads, and a translation driving part for driving the translation control screw (22) to rotate is arranged on one side of the stand (1).

4. A segmented laser gas filtering mechanism according to claim 3, characterized in that: The translation driving unit comprises: A second drive motor (20), the second drive motor (20) is mounted on the stand (1); The second gear transmission assembly (19), the output end of the second drive motor (20) is transmission-connected to the translation control screw (22) through the second drive motor (20).

5. A segmented laser gas filtering mechanism according to claim 4, characterized in that: The rotation driving unit comprises: A first driving motor (12), the first driving motor (12) is mounted on the moving base (3); The first gear transmission component (11), the output end of the first driving motor (12) is connected to the installation shaft through the first gear transmission component (11), and the installation shaft is rotatably installed on the moving seat (3).

6. A segmented laser gas filtering mechanism according to claim 5, characterized in that: A connecting frame (25) is fixed on the sleeve (23), and matching magnetic blocks (26) are installed on the connecting frame (25) and the discharge door (38); the discharge door (38) is installed on the filter cartridge (10) through a spring hinge.

7. A segmented laser gas filtering mechanism according to claim 6, characterized in that: The extrusion portion comprises: A mounting frame (18), the mounting frame (18) being mounted on the stand (1); An adjustment frame (14), the adjustment frame (14) is slidably mounted on a mounting frame (18), and a fixing knob (13) for fixing the adjustment frame (14) is threadedly connected to the mounting frame (18); A pressing plate (15) is fixed to the end of the adjusting frame (14).

8. A segmented laser gas filtering mechanism according to claim 7, characterized in that: An annular fixing seat (33) is fixed to the outer wall of one side of the annular elastic bag (27), and an annular rotating seat (34) is rotatably mounted to the outer wall of one side of the annular fixing seat (33).

9. A segmented laser gas filtering mechanism according to claim 8, characterized in that: A matching annular groove is provided on one side adjacent to the annular fixing seat (33) and the connecting port (24), and a plurality of balls (36) are movably installed in the annular groove; the extrusion plate (15) is located on the translation path of the annular rotating seat (34).

10. The segmented laser gas filtering mechanism according to claim 1, characterized in that: The conveying channel (5) is provided with a mounting groove, a sieve plate (6) is movably mounted in the mounting groove, and the sieve plate (6) is provided with sieve holes (8); a pull handle (2) is provided at the end of the sieve plate (6), a stopper (9) is fixed at the end of the sieve plate (6), and the width of the stopper (9) is greater than the width of the mounting groove; the length of the sieve plate (6) is greater than or equal to twice the width of the conveying channel (5); a side bracket (4) is fixed on the conveying channel (5), and a brush head (7) is provided on the side of the side bracket (4) close to the sieve plate (6).

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