Pipe branch nozzle processing equipment

Abstract

The present invention discloses a pipeline branch nozzle processing equipment, which relates to the technical field of branch nozzle processing, comprising a base plate, a gantry milling machine body is installed at the top center of the base plate, fixing mechanisms are symmetrically arranged at both ends of the top of the base plate, a cleaning mechanism is arranged below the fixing mechanism, an extrusion mechanism is arranged on one side of the cleaning mechanism through a transmission mechanism, a filtering mechanism is arranged below the extrusion mechanism, the filtering mechanism is connected to the gantry milling machine body, and a pushing mechanism is arranged on one side of the filtering mechanism; through a motor, a cleaning plate, a protrusion and an arc strip, two motors are started to drive the cleaning plates to slide along the surface of the gantry milling machine body, the cleaning plates sweep the mixture into a collection box, the protrusion at the end is engaged with the gear, driving the protrusion to move above the gear, and then driving the cleaning plate to move up and away from the top of the gantry milling machine body, the gear continues to rotate, driving the cleaning plate to return to the initial position, repeating the cleaning operation, and timely cleaning the mixture of metal waste and coolant.

Description

Technical Field

[0001] The invention relates to the technical field of pipe branch nozzle processing, in particular to pipeline branch nozzle processing equipment. Background Art

[0002] The branch nozzle is a small branch pipe joint welded on the main pipe, and the branch nozzle needs to be processed by a gantry milling machine. The gantry milling machine, also known as the gantry milling machine, is a milling machine with a portal frame and a horizontal long bed. Multiple milling cutters can be used to process the surface at the same time on the gantry milling machine. The processing accuracy and production efficiency are relatively high. It is suitable for processing the planes and inclined surfaces of large workpieces in batch and mass production. The CNC gantry milling machine can also process spatial curved surfaces and some special parts. The existing gantry milling machine generates a large amount of metal waste when cutting the branch nozzle, but the waste cannot be cleaned up in time, and the cutting process requires continuous spraying of coolant towards the cutting tool. The coolant is mixed with the metal waste, and the coolant cannot be recycled and reused, resulting in a waste of resources. In response to the above problems, the inventor proposed a pipe branch nozzle processing equipment to solve the above problems. Summary of the Invention

[0003] In order to solve the problem that waste cannot be cleaned up in time and coolant cannot be recycled and reused; the purpose of the present invention is to provide a pipeline branch nozzle processing equipment.

[0004] The top end face of said sliding panel also is provided with an interlocking structure, and the interlocking structures include two guide rails which are respectively provided with a guide rail, a guide rail for sliding contact, and a guide rail for sliding contact. The transmission mechanism is that one end of the driving mechanism is rotated by the other end of the driving mechanism, and the other end of the driving mechanism is rotated by the other end of the driving mechanism.

[0005] Preferably, the filtering mechanism includes a collecting box, one side of the collecting box is fixedly matched with one end of the gantry milling machine body, the other side of the collecting box is connected with a conduit, one end of the conduit is connected with a filter box, a folding plate is fixedly provided inside the filter box, the top of the folding plate is provided below the conduit port, a filter screen is fixedly provided between the filter box and the folding plate, the outer wall of the extrusion plate is slidably matched with the inner wall of the filter box, and the bottom of the guide plate is fixedly matched with one end of the top of the filter box.

[0006] Preferably, square holes are symmetrically provided on both sides of the filter box, a waste box is fixedly provided on one side of one of the square holes, the ejection mechanism includes a mounting bar, a first push plate is fixedly provided on one side of the mounting bar through an electric push rod, a second push plate is fixedly provided on one side of the first push plate through a connecting plate, the first push plate and the second push plate are respectively engaged with the two square holes, the bottom of the connecting plate is in contact with the top of the filter screen, and vertical bars are symmetrically fixed at both ends of the bottom of the mounting bar.

[0007] Preferably, the fixing mechanism includes a top plate, and L-shaped stabilizing plates are symmetrically fixed at both ends of both sides of the top plate, wherein an intermediate plate is fixed between the two L-shaped stabilizing plates, one side of the intermediate plate is fixedly matched with one end of the motor, the top of the fixing bar is fixedly matched with the bottom of the top plate, and the L-shaped stabilizing plate, vertical plate, vertical bar and bottom of the filter box are all fixedly matched with one end of the top of the bottom plate.

[0008] Compared with the prior art, the present invention has the following beneficial effects:

[0009] 1. The present invention uses a motor, a cleaning plate, a protrusion and an arc-shaped bar. The two motors are started to drive the cleaning plate to slide along the surface of the gantry milling machine body. The cleaning plate sweeps the mixture into the collection box. The protrusion at the end engages with the gear, driving the protrusion to move above the gear, thereby driving the cleaning plate to move away from the top of the gantry milling machine body. The gear continues to rotate, driving the cleaning plate to return to the initial position, and repeating the cleaning operation to clean up the mixture of metal waste and coolant in a timely manner.

[0010] 2. The present invention uses a filter screen, a conduit and a filter box. The mixture enters the filter box through the conduit. The coolant flows through the filter screen and is temporarily stored at the bottom of the filter box. The metal waste is retained above the filter screen, thereby completing the filtration operation of the mixture and facilitating the recycling of the coolant.

[0011] 3. The present invention rotates the disc, the fixed block and the extrusion plate through the two pulleys, which drives the disc and the fixed block to rotate, and drives the extrusion plate to move repeatedly along the inner wall of the filter box and the folding plate, continuously squeezing the metal waste on the filter screen, thereby squeezing out the coolant retained in the metal waste, and further improving the recovery efficiency of the coolant. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 This is a first perspective stereogram of the present invention.

[0014] Figure 2 For the present invention Figure 1 An enlarged view of part A.

[0015] Figure 3 This is a stereoscopic diagram from a second viewing angle of the present invention.

[0016] Figure 4 It is a cross-sectional view of the present invention.

[0017] Figure 5 It is a schematic diagram of the connection structure of the fixing mechanism, cleaning mechanism, transmission mechanism, extrusion mechanism, filtering mechanism and ejection mechanism of the present invention.

[0018] Figure 6 It is a schematic structural diagram of the cleaning mechanism of the present invention.

[0019] Figure 7 It is a schematic structural diagram of the extrusion mechanism of the present invention.

[0020] Figure 8 It is a schematic diagram of the structure of the filtering mechanism of the present invention.

[0021] Figure 9 It is a schematic diagram of the transmission mechanism structure of the present invention.

[0022] Figure 10 This is a schematic diagram of the mechanism structure of the present invention.

[0023] Figure 11 It is a structural schematic diagram of the fixing mechanism of the present invention.

[0024] Figure 12 It is a schematic diagram of the connection structure between the base plate and the main body of the gantry milling machine of the present invention.

[0025] In the figure: 1. Bottom plate; 2. Gantry milling machine body; 3. Fixing mechanism; 31. Top plate; 32. L-shaped stabilizing plate; 33. Middle plate; 4. Cleaning mechanism; 41. Fixing bar; 42. Rotating shaft; 43. Motor; 44. Sliding bar; 45. Square frame; 46. Moving plate; 47. U-shaped block; 48. Connecting bar; 49. Cleaning plate; 410. Mounting plate; 411. Bump; 412. Gear; 413. Curved bar; 5. Transmission mechanism; 51. Connecting shaft; 52. Pulley; 53. Conveyor belt; 54. Sleeve; 55. Vertical plate; 6. Extrusion mechanism; 61. Disc; 62. Annular bar; 63. Fixed block; 64. Reciprocating plate; 65. Guide plate; 66. L-shaped fixed plate; 67. Extrusion plate; 7. Filter mechanism; 71. Collection box; 72. Conduit; 73. Filter box; 74. Folding plate; 75. Filter screen; 76. Square hole; 77. Waste box; 8. Push-out mechanism; 81. Mounting bar; 82. Electric push rod; 83. First push plate; 84. Connecting plate; 85. Second push plate; 86. Vertical bar. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Example: Figure 1-12 As shown, the present invention provides a pipe branch nozzle processing equipment, including a base plate 1, a gantry milling machine body 2 is installed at the top center of the base plate 1, fixing mechanisms 3 are symmetrically arranged at both ends of the top of the base plate 1, a cleaning mechanism 4 is arranged below the fixing mechanism 3, and an extrusion mechanism 6 is arranged on one side of the cleaning mechanism 4 through a transmission mechanism 5. A filtering mechanism 7 is arranged below the extrusion mechanism 6, and the filtering mechanism 7 is connected to the gantry milling machine body 2. A pushing mechanism 8 is arranged on one side of the filtering mechanism 7; the cleaning mechanism 4 is convenient for timely cleaning of metal waste generated during the processing of the branch nozzle by the gantry milling machine body 2, and the filtering mechanism 7 is convenient for separating the metal waste from the coolant through the filtering mechanism 7, so as to facilitate the recovery and utilization of the coolant, and the extrusion mechanism 6 is driven to work by the transmission mechanism 5 to squeeze the coolant contained in the metal waste, so as to facilitate more sufficient recovery of the coolant, and the metal waste in the filtering mechanism 7 is conveniently taken out through the pushing mechanism 8.

[0028] The cleaning mechanism 4 includes a fixed bar 41, a rotating shaft 42 and a motor 43. A slide groove is provided at the bottom of the fixed bar 41, and a slide bar 44 is slidably provided in the slide groove. A square frame 45 is fixedly provided at the bottom of the slide bar 44, and a movable plate 46 is slidably provided inside the square frame 45. A U-shaped block 47 is fixedly provided on one side of the movable plate 46, and a connecting bar 48 is fixedly provided at the bottom of the U-shaped block 47. A cleaning plate 49 is fixedly provided at the bottom of the connecting bar 48, and the outer wall of the cleaning plate 49 slides with one end of the top of the gantry milling machine body 2.

[0029] By adopting the above technical solution, when it is necessary to clean metal waste, the slide bar 44 slides along the horizontal direction of the slide groove, driving the square frame 45 and the movable plate 46 to move, and then driving the cleaning plate 49 to slide along the surface of the gantry milling machine body 2 to clean the metal waste that falls on the top of the gantry milling machine body 2.

[0030] A mounting plate 410 is fixedly provided at the center of the other side of the movable plate 46. A plurality of evenly distributed protrusions 411 are fixedly provided on one side of the mounting plate 410. A gear 412 is meshed with the protrusion 411. The gear 412 is mounted on the rotating shaft 42. Arc bars 413 are symmetrically fixedly provided at both ends of the other side of the mounting plate 410. The rotating shaft 42 is slidably fitted with the arc bar 413, and the output end of the motor 43 is fixedly fitted with one end of the rotating shaft 42.

[0031] The fixing mechanism 3 includes a top plate 31, and L-shaped stabilizing plates 32 are symmetrically fixed at both ends of both sides of the top plate 31, wherein an intermediate plate 33 is fixedly arranged between the two L-shaped stabilizing plates 32, one side of the intermediate plate 33 is fixedly matched with one end of the motor 43, the top of the fixing bar 41 is fixedly matched with the bottom of the top plate 31, and the L-shaped stabilizing plate 32 is fixedly matched with one end of the top of the bottom plate 1.

[0032] By adopting the above technical solution, the top plate 31 is used to facilitate installation and fixation of various structures.

[0033] By adopting the above technical solution, when it is necessary to clean metal scraps, the motor 43 is started to drive the gear 412 to rotate, thereby driving the protrusion 411 and the mounting plate 410 to move in the horizontal direction. When the protrusion 411 at the end engages with the gear 412, the rotating shaft 42 slides along the arc bar 413, driving the movable plate 46 to move upward in the vertical direction inside the square frame 45, so that the protrusion 411 moves above the gear 412, thereby driving the cleaning plate 49 to move up and away from the top of the gantry milling machine body 2. The gear 412 continues to rotate, driving the cleaning plate 49 to return to the initial position, and repeating the cleaning operation.

[0034] The extrusion mechanism 6 includes a disc 61 and an annular bar 62. A fixed block 63 is fixedly provided on one side of the disc 61. The outer wall of the fixed block 63 slides with the inner wall of the annular bar 62. A reciprocating plate 64 is fixedly provided at the bottom of the annular bar 62. A guide plate 65 is slidingly provided at the center of the reciprocating plate 64. An L-shaped fixed plate 66 is fixedly provided at the bottom of the reciprocating plate 64. An extrusion plate 67 is fixedly provided at the bottom of the L-shaped fixed plate 66.

[0035] By adopting the above technical solution, when the transmission mechanism 5 drives the disc 61 to rotate, it drives the fixed block 63 to rotate in a circular motion. While the fixed block 63 rotates in a circular motion, it slides on the inner wall of the annular bar 62, thereby driving the annular bar 62 and the reciprocating plate 64 to move repeatedly in the vertical direction, thereby driving the extrusion plate 67 to move repeatedly inside the filter mechanism 7, thereby squeezing the metal waste inside the filter mechanism 7.

[0036] The transmission mechanism 5 includes a connecting shaft 51, and two pulleys 52 are provided on one side of the connecting shaft 51. The two pulleys 52 are connected through a transmission belt 53. One of the pulleys 52 is mounted on the connecting shaft 51, and the other pulley 52 is mounted on the rotating shaft 42. One end of the connecting shaft 51 is fixedly matched with the other side of the disc 61.

[0037] By adopting the above technical solution, when the motor 43 rotates to drive the rotating shaft 42 to rotate, the two pulleys 52 are driven to rotate, and then the connecting shaft 51 and the disc 61 are driven to rotate, providing power for the extrusion mechanism 6 to work.

[0038] A sleeve 54 is rotatably provided on the surface of the connecting shaft 51 , and vertical plates 55 are symmetrically fixedly provided at both ends of the bottom of the sleeve 54 , and the vertical plates 55 are fixedly matched with one end of the top of the bottom plate 1 .

[0039] By adopting the above technical solution, the connecting shaft 51 rotates about the axis of the sleeve 54 , so that the connecting shaft 51 works normally.

[0040] The filtering mechanism 7 includes a collecting box 71 , one side of the collecting box 71 is fixedly matched with one end of the gantry milling machine body 2 , and the other side of the collecting box 71 is connected to a conduit 72 .

[0041] By adopting the above technical solution, the collection box 71 can preliminarily collect the mixture of metal waste and coolant swept down by the cleaning plate 49 , and the mixture enters the filter box 73 through the conduit 72 .

[0042] One end of the conduit 72 is connected to a filter box 73, and a folding plate 74 is fixedly provided inside the filter box 73. The top of the folding plate 74 is set below the port of the conduit 72, and a filter screen 75 is fixedly provided between the filter box 73 and the folding plate 74. The outer wall of the extrusion plate 67 is slidably fitted with the inner wall of the filter box 73, and the bottom of the guide plate 65 is fixedly fitted with one end of the top of the filter box 73. The bottom of the filter box 73 is fixedly fitted with one end of the top of the base plate 1.

[0043] By adopting the above technical solution, when the mixture enters the filter box 73, the mixture continues to flow along the folding plate 74 to the filter screen 75, the coolant flows through the filter screen 75 and is temporarily stored at the bottom of the filter box 73, and the metal waste is retained above the filter screen 75, completing the filtering operation of the mixture.

[0044] Square holes 76 are symmetrically provided on both sides of the filter box 73, and a waste box 77 is fixedly provided on one side of one of the square holes 76. The pushing mechanism 8 includes a mounting bar 81, and a first push plate 83 is fixedly provided on one side of the mounting bar 81 through an electric push rod 82. A second push plate 85 is fixedly provided on one side of the first push plate 83 through a connecting plate 84. The first push plate 83 and the second push plate 85 are respectively engaged with the two square holes 76. The bottom of the connecting plate 84 contacts the top of the filter screen 75. Vertical bars 86 are symmetrically fixed at both ends of the bottom of the mounting bar 81, and the vertical bar 86 is fixedly engaged with one end of the top of the base plate 1.

[0045] By adopting the above technical solution, there are sealing measures between the first push plate 83 and the second push plate 85 and the square hole 76. This is the existing technology and will not be repeated here. When a large amount of metal waste accumulates on the filter screen 75, the motor 43 is temporarily stopped and the electric push rod 82 is started to extend it, driving the first push plate 83 and the second push plate 85 to move, pushing the metal waste located above the filter screen 75 to move, and the metal waste leaves the filter box 73 from the square hole 76 away from the electric push rod 82, and the metal waste falls into the waste box 77 for storage.

[0046] Working principle:

[0047] When the branch nozzle needs to be processed, the workpiece is placed at the center of the gantry milling machine body 2, the gantry milling machine body 2 is started, and the workpiece is processed.

[0048] When it is necessary to clean the mixture of metal scrap and coolant on the gantry milling machine body 2, the two motors 43 are started respectively (the two motors 43 rotate in opposite directions), so that the protrusion 411 continues to move toward the direction close to the filter box 73, thereby driving the mounting plate 410 to move in the horizontal direction, driving the square frame 45 and the movable plate 46 to move, and then driving the cleaning plate 49 to slide along the surface of the gantry milling machine body 2, and the cleaning plate 49 sweeps the mixture into the collection box 71. When the protrusion 411 at the end engages with the gear 412, the rotating gear 412 drives the protrusion 411 at the end to move upward, and the rotating shaft 42 slides relative to the arc bar 413, thereby driving the movable plate 46 and the mounting plate 410 to move upward in the vertical direction inside the square frame 45, so that the protrusion 411 moves above the gear 412, and then drives the cleaning plate 49 to move up and away from the top of the gantry milling machine body 2. The gear 412 continues to rotate, driving the cleaning plate 49 to return to the initial position, and repeating the cleaning operation.

[0049] When the mixture needs to be filtered, the mixture enters the filter box 73 through the conduit 72, and the mixture continues to flow along the folded plate 74 to the filter screen 75. The coolant flows through the filter screen 75 and is temporarily stored at the bottom of the filter box 73, and the metal waste is retained above the filter screen 75, thereby completing the filtration operation of the mixture and facilitating the recycling of the coolant.

[0050] When the rotating shaft 42 rotates, it drives the two pulleys 52 to rotate, and then drives the connecting shaft 51 and the disc 61 to rotate, and drives the fixed block 63 to rotate in a circle. While the fixed block 63 rotates in a circle, it slides on the inner wall of the annular bar 62, and then drives the annular bar 62 and the reciprocating plate 64 to move repeatedly in the vertical direction, and then drives the extrusion plate 67 to move repeatedly along the inner wall of the filter box 73 and the folding plate 74, continuously squeezing the metal waste on the filter screen 75, thereby squeezing out the coolant retained in the metal waste, and further improving the recovery efficiency of the coolant.

[0051] When a large amount of metal waste accumulates on the filter screen 75, the motor 43 is temporarily stopped and the electric push rod 82 is started to extend, driving the first push plate 83 and the second push plate 85 to move, pushing the metal waste located above the filter screen 75 to move, and the metal waste leaves the filter box 73 from the square hole 76 away from the electric push rod 82, and the metal waste falls into the waste box 77 for storage, thereby removing the metal waste.

[0052] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A pipe branch nozzle processing device, comprising a base plate (1), a gantry milling machine body (2) is installed at the top center of the base plate (1), characterized in that: The top ends of the bottom plate (1) are symmetrically provided with fixing mechanisms (3), a cleaning mechanism (4) is provided below the fixing mechanism (3), an extrusion mechanism (6) is provided on one side of the cleaning mechanism (4) through a transmission mechanism (5), a filtering mechanism (7) is provided below the extrusion mechanism (6), the filtering mechanism (7) is connected to the gantry milling machine body (2), and a pushing mechanism (8) is provided on one side of the filtering mechanism (7); The cleaning mechanism (4) includes a fixed bar (41), a rotating shaft (42) and a motor (43); a sliding groove is provided at the bottom of the fixed bar (41); a sliding bar (44) is slidably provided on the sliding groove; a square frame (45) is fixedly provided at the bottom of the sliding bar (44); a movable plate (46) is slidably provided inside the square frame (45); a U-shaped block (47) is fixedly provided on one side of the movable plate (46); a connecting bar (48) is fixedly provided at the bottom end of the U-shaped block (47); a cleaning plate (49) is fixedly provided at the bottom of the connecting bar (48); an outer wall of the cleaning plate (49) is slidably matched with one end of the top of the gantry milling machine body (2); A mounting plate (410) is fixedly provided at the center of the other side of the movable plate (46), a plurality of evenly distributed protrusions (411) are fixedly provided on one side of the mounting plate (410), a gear (412) is meshed with the protrusion (411), and the gear (412) is sleeved on the rotating shaft (42), and arc-shaped bars (413) are symmetrically fixedly provided at both ends of the other side of the mounting plate (410), the rotating shaft (42) and the arc-shaped bars (413) are slidably engaged, and the output end of the motor (43) is fixedly engaged with one end of the rotating shaft (42); The fixing mechanism (3) includes a top plate (31), and L-shaped stabilizing plates (32) are symmetrically fixedly provided at both ends of both sides of the top plate (31), wherein an intermediate plate (33) is fixedly provided between the two L-shaped stabilizing plates (32), and one side of the intermediate plate (33) is fixedly matched with one end of the motor (43), the top of the fixing bar (41) is fixedly matched with the bottom of the top plate (31), and the L-shaped stabilizing plate (32) is fixedly matched with one end of the top of the bottom plate (1).

2. The pipe branch nozzle processing equipment according to claim 1, characterized in that: The extrusion mechanism (6) comprises a disc (61) and an annular strip (62). A fixed block (63) is fixedly provided on one side of the disc (61). The outer wall of the fixed block (63) is slidably engaged with the inner wall of the annular strip (62). A reciprocating plate (64) is fixedly provided at the bottom of the annular strip (62). A guide plate (65) is slidably provided at the center of the reciprocating plate (64). An L-shaped fixed plate (66) is fixedly provided at the bottom of the reciprocating plate (64). An extrusion plate (67) is fixedly provided at the bottom of the L-shaped fixed plate (66).

3. The pipe branch nozzle processing equipment according to claim 2, characterized in that: The transmission mechanism (5) includes a connecting shaft (51), and two pulleys (52) are provided on one side of the connecting shaft (51). The two pulleys (52) are connected by a transmission belt (53), one of the pulleys (52) is mounted on the connecting shaft (51), and the other pulley (52) is mounted on the rotating shaft (42). One end of the connecting shaft (51) is fixedly matched with the other side of the disc (61).

4. The pipe branch nozzle processing equipment according to claim 3, characterized in that: A sleeve (54) is rotatably provided on the surface of the connecting shaft (51), and vertical plates (55) are symmetrically fixedly provided at both ends of the bottom of the sleeve (54), and the vertical plates (55) are fixedly matched with one end of the top of the bottom plate (1).

5. The pipe branch nozzle processing equipment according to claim 4, characterized in that: The filtering mechanism (7) comprises a collecting box (71), one side of the collecting box (71) is fixedly matched with one end of the gantry milling machine body (2), and the other side of the collecting box (71) is connected to a conduit (72).

6. The pipe branch nozzle processing equipment according to claim 5, characterized in that: One end of the conduit (72) is connected to a filter box (73), a folding plate (74) is fixedly provided inside the filter box (73), the top end of the folding plate (74) is provided below the port of the conduit (72), a filter screen (75) is fixedly provided between the filter box (73) and the folding plate (74), the outer wall of the extrusion plate (67) is slidably fitted with the inner wall of the filter box (73), the bottom of the guide plate (65) is fixedly fitted with one end of the top of the filter box (73), and the bottom of the filter box (73) is fixedly fitted with one end of the top of the bottom plate (1).

7. The pipe branch nozzle processing equipment according to claim 6, characterized in that: The filter box (73) is symmetrically provided with square holes (76) on both sides, and a waste box (77) is fixedly provided on one side of one of the square holes (76). The ejection mechanism (8) includes a mounting bar (81), and a first push plate (83) is fixedly provided on one side of the mounting bar (81) through an electric push rod (82). A second push plate (85) is fixedly provided on one side of the first push plate (83) through a connecting plate (84). The first push plate (83) and the second push plate (85) are respectively engaged with the two square holes (76). The bottom of the connecting plate (84) contacts the top of the filter screen (75). Vertical bars (86) are symmetrically fixedly provided at both ends of the bottom of the mounting bar (81), and the vertical bars (86) are fixedly engaged with one end of the top of the bottom plate (1).

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