CN217490038U - Unpowered timing self-cleaning filtering device - Google Patents

Abstract

The utility model discloses an unpowered timing self-cleaning filter equipment, especially one kind utilize to be realized regularly self-cleaning's filter equipment by filtered liquid self pressure, it can effectively get rid of the impurity that adsorbs on filter medium (like the filter screen) surface, ensure filter equipment's filter capacity, it has need not external power supply in the use to can carry out the abluent characteristics of scavenging time setting and automatic completion.

Description

Unpowered timing self-cleaning filtering device

Technical Field

The utility model relates to a liquid automatic filtration technical field specifically is a unpowered timing self-cleaning filter equipment.

Background

Pressure water with certain cleanliness is required in the underground operation process of the mine, and the pressure water provided underground of the mine is required to be filtered, so that various granular impurities in the water are effectively removed. The prior water quality filter mainly comprises a fixed filter which needs to be manually disassembled for cleaning, a semi-automatic filter which does not need to be disassembled from a pipeline for manual backwashing, and a full-automatic filter which needs to be controlled by an auxiliary power source for automatic cleaning.

The existing filtering device has the defects of low automation degree and the full-automatic filtering device needs to be controlled by an external auxiliary power source

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a unpowered timing self-cleaning filter equipment to solve the automatic filtration's that provides in the above-mentioned background art problem.

In order to achieve the above purpose, the utility model provides a following technical scheme: mainly comprises a filtering main body (1), a cleaning time setting device (2), a connecting frame body (4) and an automatic slag discharging device (5). The I position of the filtering main body (1) is connected with the II position of the cleaning time setting device (2) by a connecting pipe fitting (3), the cleaning time setting device (2) is connected with the automatic slag discharging device (5) through a first part C (11), a part A (9) and a part B (10), the filtering main body (1) is connected with the automatic slag discharging device (5) through a bolt group a (6), the filtering main body (1) is connected with the connecting frame body (4) through a bolt group B (7) and the cleaning time setting device (2) through a bolt group (8), one end of a part E (13) on the cleaning time setting device (2) is connected with a part D (12) on the filtering main body (1) through a part C (11), and the other end of the part E (13) is connected with a part B (10) on the automatic slag discharging device (5) through a part A (9); the member D (12) is connected to a cartridge assembly (75) on the filter body by a bolt set (14).

Preferably, the cleaning time setting device (2) consists of a cover plate component (17), a cylinder body (25) and a floating body (23), one end of a piece E (13) is connected with a piece C (11) through a slotted hole (III) on the piece E (13), the other end of the piece E (13) is connected with a piece A (9) through a bolt group G (32), a positioning sleeve (14) is connected with a connecting plate (15) through welding, the connecting plate (15) is connected through a bolt group E (16), the positioning sleeve (14) is connected with the piece A through welding, a movable component (18) is connected with the cover plate component (17) through the positioning sleeve (14), a piece F (19) is connected with the cover plate component (17) through welding, a piece G (20) is connected with a piece F (19) through matching, a piece H (21) is connected with the piece F (19) through threads, and a magnet (22) is connected with a piece H (21) through matching, the joint piece (II) is connected with the cover plate assembly (17) through welding, the floating body (23) connects the cylinder body (25) and the cover plate assembly (17) into a whole through the piece I (24), the nut (31) and the piece F (19), the piece J (28) is connected with the cylinder body (25) through the bolt group F (27), the piece K (30) is connected with the piece J (28) through threads, and a sealing piece a (26) and a sealing piece b (29) are arranged for ensuring sealing.

Preferably, the movable assembly (18) mainly comprises a nut group h (33), a piece L (34), a piece Jj (35) and a piece M (36), the piece Jj (35) and the piece M (36) are connected by welding, the piece Jj (35) and the piece L (34) are connected by the nut group h (33), and any number of the pieces Jj (35) are provided.

Preferably, the floating body (23) mainly comprises a magnet (22), a member N (37), a member O (38), a member P (39), a member Q (40), a member R (41), a member S (42), a member T (43) and a member U (44), the member N (37), the member P (39), the member Q (40), the member R (41), the member S (42), the member T (43) and the member U (44) are made of corrosion-resistant materials and are connected by welding to form a closed space body, the member O (38) is a steel plate for enhancing the magnet attraction force, the member P (39) and the member S (42) are connected by welding, and the magnet (22) is positioned by the member N (37) and the member T (43) and is fixed by the attraction force generated between the magnet (22) and the member O (38).

Preferably, the cylinder (25) mainly comprises a piece V (45), a piece W (46), a piece X (47), a piece Y (48) and a piece Z (49), the piece V (45), the piece W (46), the piece X (47), the piece Y (48) and the piece Z (49) are made of corrosion-resistant materials, the water-tight cylinder (25) is formed by welding and connecting the pieces, and the piece Y (48) has iron absorption performance.

Preferably, the filtering main body (1) mainly comprises a cover plate member (51), a water outlet connecting member (50), a water inlet assembly (54), a filtering body (60), an automatic slag discharge time adjusting assembly (62), a cylinder assembly (75) and a water pressure display assembly (76), wherein the cover plate member (51) is connected with the cylinder assembly (75) through a bolt group i (52), a sealing member c (53) is arranged on the joint surface of the cover plate member (51) and the cylinder assembly (75), the water outlet connecting member (50), the water inlet assembly (54) and the cylinder assembly (75) are connected by welding, a 90-degree inclined water inlet hole III is arranged on the inner side of the water inlet assembly (54) positioned on the cylinder assembly (75), the filtering body (60) positioned inside the cylinder assembly (75) is connected with the cylinder assembly (75) through a bolt assembly a (61), a water inlet joint (55), the water pressure display assembly (76) and the automatic slag discharge time adjusting assembly (62) are arranged at the end part of the water inlet assembly (54), the bottom of the cylinder component (75) is provided with a manual slag discharge valve.

Preferably, the pressure gauge (56) is in threaded connection with the pressure gauge base (57), a sealing assembly (58) is arranged on the joint surface of the pressure gauge (56) and the pressure gauge base (57), the pressure gauge fixing piece (59) is connected with the water inlet joint (55) into a whole, and the pressure gauge base (57) is connected with the pressure gauge fixing piece (59) into a whole by a piece Cc (77).

Preferably, the components of the automatic slag discharging time adjusting assembly are connected with the water inlet assembly (54) into a whole, a precise filter element (64) is arranged in a filter body shell (67), the filter body shell (67) is connected with a member in a threaded manner, a sealing element (63) is arranged on the joint surface of the filter body shell (67), one end of a member Aa (69) is connected with a member Ii (66), the other end of the member Aa (69) is connected with an adjusting knob (73) through a member Bb (72), a sealing element (65) is arranged on the joint surface of the member Aa (69), a sliding connection is adopted between one end of a movable rod (68) and the member Aa (69), a threaded connection is adopted between the other end of the movable rod and the adjusting knob (73), the movable rod (68) can slide in the member Aa (69) when the adjusting knob (73) rotates, a sealing element d (70) is arranged between the sliding surface of the movable rod (68), a joint pipe fitting (74) matched with the pipe fitting (3) is fixed on the member Aa (69), the movable rod (68) is fixed with a pointer (71) for displaying time, the part of the pointer (71) for displaying time on the part Aa (69) has time scales V, and the end of the adjusting knob (73) is provided with a mark IV for displaying the size of the slag discharging time.

Preferably, the automatic slag discharging device (5) mainly comprises a piece B (10), a piece Dd (78), a piece Ee (79), a piece sealing element e (80), an Ff (81), a sealing element f (85), a piece Gg (86), a piece Kk (88) and a piece Hh (89), wherein the piece B (10) and the piece Dd (78) are in sliding connection, the piece Dd (78) and the piece Ee (79) are connected into a whole, the piece Dd (78) and the piece Ee (79) are made of corrosion-resistant materials with iron absorption characteristics, the piece Ee (79) and the piece Ff (81) are connected into a whole, a sealing element e (80) is arranged between matching surfaces of the element Ee (79) and the element Ff (81), the element Ee (79) and the element Gg (86) are connected through a bolt component b (82), a sealing element f (85) is arranged between matching surfaces of the element Ee (79) and the element Gg (86), and the element Hh (89) and the element Gg (86) are connected through a bolt component c (90). The sizes of the liquid channels in the structure are (2) > (1) > (5) in sequence.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses when the body floats to a certain position, body upper portion magnet and the magnet that is located apron subassembly upper portion are under the effect of mutual suction, and the body promotes movable subassembly rebound and laps the subassembly and join as an organic whole, and the pressure water is full of water storage space VII to the body come-up and laps this section of time that the subassembly joins as an organic whole and is exactly the automatic interval time quantum that washs of filter equipment. When the floating body floats upwards and is connected with the cover plate assembly into a whole, the floating body floats upwards to drive the sealing piece arranged on the component part to be separated from a sealing section formed by the sealing piece, pressure water stored in the water storage space VII is discharged from a through hole VIII on the component part, when the water is discharged to a certain degree, the self weight of the floating body is greater than the buoyancy of the floating body and the suction force between magnets at the upper end of the floating body, the floating body moves downwards to drive the sealing piece arranged on the component part to be sealed with the component part, the time is the time for automatically cleaning the filtering device, the sealed water storage space VII is formed to store water again, and the next automatic cleaning cycle is carried out.

Drawings

FIG. 1 is a schematic structural view of a timing self-cleaning filtering device according to the present invention;

FIG. 2 is a schematic structural view of the cleaning time setting device of the present invention;

FIG. 3 is a schematic structural view of the movable assembly of the present invention;

fig. 4 is a schematic structural view of the floating body of the present invention;

fig. 5 is a schematic view of the structure of the cylinder body of the present invention;

FIG. 6 is a schematic view of the main filtering structure of the present invention;

fig. 7 is a schematic structural view of the automatic slag discharging device of the present invention.

In the figure: 1. a filter body; 2. a cleaning time setting device; 3. a pipe fitting; 4. connecting the frame body; 5. An automatic slag discharge device; 6. a bolt group a; 7. a bolt group b; 8. a bolt group c; 9. part A; 10. element B; 11. part C; 12. part D; 13. element E; 13A, a bolt group d; 14. a positioning sleeve; 15. connecting the plate; 16. a bolt group e; 17. a cover plate assembly; 18. a movable component; 19. part F; 20. a member G; 21. Member H; 22. a magnet; 23. a float; 24. part I; 25. a barrel; 26. a sealing member a; 27. a bolt group f; 28. part J; 29. a seal member b; 30. part K; 31. a nut; 32. a bolt group g; 33. a nut group h; 34. piece L; 35. piece Jj; 36. a member M; 37. a member N; 38. part O; 39. a piece P; 40. A component Q; 41. member R; 42. a member S; 43. a piece T; 44. a member U; 45. a member V; 46. a member W; 47. Piece X; 48. element Y; 49. a member Z; 50. a water outlet connector; 51. a deck member; 52. a bolt group i; 53. a seal member c; 54. a water intake assembly; 55. a water inlet joint; 56. a pressure gauge; 57. a pressure gauge stand; 58. a seal assembly; 59. a pressure gauge fixing member; 60. a filter body; 61. a bolt component a; 62. an automatic slag discharge time adjusting component; 64. a precise filter element; 66. element Ii; 67. a filter housing; 68. a movable rod; 69. piece Aa; 70. a seal d; 71. a pointer; 72. element Bb; 73. adjusting a knob; 74. A joint; 75. a cartridge assembly; 76. a water pressure display assembly; 77. a component Cc; 78. a member Dd; 79. element Ee; 80. a seal e; 81. a member Ff; 82. a bolt component b; 85. a seal f; 86. a member Gg; 89. a member Hh; 90. and c, a bolt assembly.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-7, the present invention provides an embodiment: the cleaning mode of the filtering body (60) is explained, the pressure water is discharged from the water inlet component (54) at the inner side of the cylinder component (75) and is provided with a 90-degree oblique water inlet hole III, the water flow forms an annular channel with the filtering body (60) along the cylinder component (75) to rotate, the rotating hydraulic force flushes impurities adsorbed on the surface of the filtering body (60) into an annular cavity formed by the cylinder component (75) and the filtering body (60), and when the sealing element f (85) of the automatic slag discharging device is opened or the manual slag discharging valve is manually opened, the impurities remained in the annular cavity formed by the cylinder component (75) and the filtering body (60) are discharged out of the filtering body along with the water flow, so that the filtering body (60) is cleaned and the filtering capacity of the filtering body is ensured.

The cleaning time adjustment shows that the pressure water from the water inlet assembly (54) enters the automatic slag discharge time adjustment assembly (62), and the flow rate per unit time of the pressure water discharged from the joint (74) is controlled by adjusting the size of the gap VI between the filter body shell (67) and the movable rod (68) so as to realize the control of the automatic cleaning interval time of the filter body (60).

The operation of the washing time setting means is explained with reference to the filtering main body shown in fig. 6, the floating body shown in fig. 4, and the washing time setting means shown in fig. 2.

The pressure water from the joint (74) of the filter body shown in figure 6 enters the water storage space VII formed by the cylinder body (25) and the floating body (23) through the joint pipe (3) (see the timing self-cleaning filter device shown in figure 1) and the joint pipe (II) (see the cleaning time setting device shown in figure 2), when the buoyancy of the floating body is larger than the suction force between the magnet (22) at the lower part of the floating body (23) and the piece Y (48) (see the cylinder body shown in figure 5) as the pressure water continuously enters the water storage space VII, the floating body (23) floats upwards, the floating body (23) pushes the movable assembly (18) to move upwards to be combined with the cover plate assembly (17) into a whole under the mutual suction force action of the magnet (22) at the upper part of the cover plate assembly (17), and the pressure water is filled in the space VII until the floating body (23) floats upwards to be combined with the cover plate assembly (17) into a whole, so that the time is the self-cleaning filter device Interval time of dynamic cleaning. When the floating body (23) floats upwards and is combined with the cover plate assembly (17) into a whole, the floating body (23) floats upwards to drive the sealing piece b (29) arranged on the component part U (44) to separate from a sealing section formed by the component part J (28), pressure water in the storage and water storage space VII is discharged from a through hole VIII on the component part J (28), when the water is discharged to a certain degree, the self weight of the floating body (23) is greater than the suction force between the floating body buoyancy force and the magnet at the upper end of the floating body, the floating body moves downwards to drive the sealing piece b (29) arranged on the component part U (44) to form sealing with the component part J (28), and the time is the time of automatic cleaning of the filtering device, the water storage space VII stores water again after the sealing is formed, and the next automatic cleaning cycle is carried out.

The operation of the automatic slag discharging device will be described with reference to the timing self-cleaning filter device shown in FIG. 1, the cleaning time setting device shown in FIG. 2, the cylinder shown in FIG. 5, the filter body shown in FIG. 6, and the automatic slag discharging device shown in FIG. 7.

The floating body (23) is integrated with the cover plate component (17) and drives the movable component (18) shown in figure 3 to move upwards, the pushing piece D (12) swings around the piece bolt group D (13A), the piece D (12) drives the piece B (10) to move upwards through the piece C (11) and the piece E (13) (see the timing self-cleaning filtering device shown in figure 1) to be integrated with the piece Dd (78), the sealing port (1) is opened, pressure water in the connecting pipe fitting (3) is discharged from the channel (2) for pressure relief, the piece moves upwards, impurity-containing water from a washing filtering body (60) of the filtering body (figure 1) is discharged from the channel (4) for automatic discharge of discharged slag water, the movable component (18) moves downwards under the self weight while the floating body (23) moves downwards (see figure 2), a piece D (12) swings downwards around a piece bolt group D (13A) and moves downwards through a piece E (13), a piece A (9) and a piece B (10) (see a timing self-cleaning filtering device shown in figure 1), a magnet (93) positioned at the lower part of the piece B (10) and a piece Ee (79) are attracted into a whole, a sealing opening (1) is closed, a sealing element f (85) is pushed by water pressure to close a channel (4), and automatic slag removal is finished.

The working process of the self-cleaning filtering device is explained, and the timing self-cleaning filtering device is shown in the attached figure 1. The connecting pipe fitting (3) from the filtering main body (1) enters the cleaning time setting device (2), a driving piece D (12) of the cleaning time setting device (2) swings around a piece bolt group D (13A) and drives the automatic slag discharging device (5) to automatically discharge slag through a piece E (13), a piece A (9) and a piece B (10), and the filtering device is automatically cleaned by utilizing the pressure of liquid per se.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (7)

1. The utility model provides a unpowered timing is from cleaning filter equipment, includes filters main part (1), cleaning time setting device (2), connects rack body (4), arranges sediment device (5) automatically, its characterized in that: the I position of the filtering main body (1) is connected with the II position of the cleaning time setting device (2) by a connecting pipe (3), the cleaning time setting device (2) is connected with the cleaning time setting device through a piece C (11) and a piece A (9), a piece B (10) is connected with an automatic slag discharging device (5), a filtering main body (1) is connected with the automatic slag discharging device (5) through a bolt group a (6), the filtering main body (1) is connected with a connecting frame body (4) through a bolt group B (7) and a cleaning time setting device (2) through a bolt group C (8), one end of a piece E (13) on the cleaning time setting device (2) is connected with a piece D (12) on the filtering main body (1) through a piece C (11), the other end of the piece E (13) is connected with a piece B (10) on the automatic slag discharging device (5) through a piece A (9), and the piece D (12) is connected with a barrel component (75) on the filtering main body through a bolt group D (13A).

2. The unpowered timed self-cleaning filter apparatus of claim 1, wherein: the cleaning time setting device (2) comprises a cover plate component (17), a cylinder body (25) and a floating body (23), one end of a piece E (13) is connected with a piece C (11) through a slotted hole (III) on the piece E (13), the other end of the piece E (13) is connected with a piece A (9) through a bolt group G (32), a positioning sleeve (14) is connected with a connecting plate (15) through welding, the connecting plate (15) is connected through a bolt group E (16), the positioning sleeve (14) is connected with the connecting plate (15) through welding, a movable component (18) is connected with the cover plate component (17) through an O (38) and a positioning sleeve (14), a piece F (19) is connected with the cover plate component (17) through a welding mode, a piece G (20) is connected with a piece F (19) through matching, a piece H (21) is connected with a piece F (19) through threads, and a magnet (22) is connected with a piece H (21) through matching, the part (II) is connected with the cover plate assembly (17) through welding, the floating body (23) connects the cylinder body (25) and the cover plate assembly (17) into a whole through the part I (24), the nut (31) and the part F (19), the part J (28) is connected with the cylinder body (25) through the bolt group F (27), the part K (30) is connected with the part J (28) through threads, and a sealing element a (26) and a sealing element b (29) are arranged for ensuring sealing.

3. The unpowered timed self-cleaning filter apparatus of claim 2 wherein: the movable assembly (18) mainly comprises a nut group h (33), pieces L (34), pieces Jj (35) and pieces M (36), wherein the pieces Jj (35) are connected with the pieces M (36) in a welding mode, the pieces Jj (35) are connected with the pieces L (34) through the nut group h (33), and the number of the pieces Jj (35) is any number.

4. The unpowered timed self-cleaning filter apparatus of claim 2 wherein: the floating body (23) mainly comprises a magnet (22), a piece N (37), a piece O (38), a piece P (39), a piece Q (40), a piece R (41), a piece S (42), a piece T (43) and a piece U (44), wherein the piece N (37), the piece P (39), the piece Q (40), the piece R (41), the piece S (42), the piece T (43) and the piece U (44) are made of corrosion-resistant materials and are connected in a welding mode to form a closed space body, the piece O (38) is a steel plate for enhancing the magnet suction force, the piece P (39) and the piece S (42) are connected in a welding mode, and the magnet (22) is positioned through the piece N (37) and the piece T (43) and fixed through the suction force generated between the magnet (22) and the piece O (38).

5. The unpowered timed self-cleaning filter apparatus of claim 2 wherein: the barrel (25) mainly comprises a V (45), a W (46), an X (47), a Y (48) and a Z (49), the V (45), the W (46), the X (47), the Y (48) and the Z (49) are made of corrosion-resistant materials, the parts are connected by welding to form the water-tightness barrel (25), and the Y (48) has iron absorption performance.

6. The unpowered timed self-cleaning filter apparatus of claim 1, wherein: the filter main body (1) mainly comprises a cover plate member (51), a water outlet connecting member (50), a water inlet assembly (54), a filter body (60), an automatic slag discharge time adjusting assembly (62), a cylinder assembly (75) and a water pressure display assembly (76), wherein the cover plate member (51) is connected with the cylinder assembly (75) through a bolt group i (52), a sealing member c (53) is arranged on the joint surface of the cover plate member (51) and the cylinder assembly (75), the water outlet connecting member (50), the water inlet assembly (54) and the cylinder assembly (75) are connected by welding, a 90-degree inclined water inlet hole III is arranged on the inner side of the water inlet assembly (54) positioned in the cylinder assembly (75), the filter body (60) positioned in the cylinder assembly (75) is connected with the cylinder assembly (75) through a bolt assembly a (61), the end part of the water inlet assembly (54) is provided with a water inlet joint (55), the water pressure display assembly (76) and the automatic slag discharge time adjusting assembly (62), the bottom of a cylinder component (75) is provided with a manual slag-off valve, a pressure gauge (56) is in threaded connection with a pressure gauge seat (57), a sealing component (58) is arranged on the joint surface of the pressure gauge (56) and the pressure gauge seat (57), a pressure gauge fixing component (59) is connected with a water inlet joint (55) into a whole, the pressure gauge seat (57) is connected with the pressure gauge fixing component (59) into a whole by a component Cc (77), the automatic slag-off time adjusting component part is connected with a water inlet component (54) into a whole, a precise filter core (64) is arranged in a filter body shell (67), the filter body shell (67) is in threaded connection with the filter body fixing component, the filter body shell (67) is connected with the joint surface, one end of a part Aa (69) is connected with a part (66), the other end of the part Aa part is connected with an adjusting knob (73) by a part Bb (72), a part Aa part (69) is connected with the joint surface, one end of a movable rod (68) is in sliding connection with a part Aa part (69), and a part (69), The other end of the screw rod is connected with an adjusting knob (73) through threads, the adjusting knob (73) can drive a movable rod (68) to slide in a member Aa (69) when rotating, a sealing element d (70) is arranged between the sliding surface of the member Aa (69) of the movable rod (68), a joint (74) matched with the connecting pipe fitting (3) is fixed on the member Aa (69), a pointer (71) for displaying time is fixed on the movable rod (68), the part, displaying the time, of the pointer (71) on the member Aa (69) has time scales V, and a mark IV for displaying the size of the slag removal time is arranged at the end of the adjusting knob (73).

7. The unpowered timed self-cleaning filter apparatus of claim 1, wherein: the automatic slag discharging device (5) is mainly composed of a piece B (10), a piece Dd (78), a piece Ee (79), a piece sealing element e (80), a piece Ff (81), a sealing element f (85), a piece Gg (86), a piece Kk (88) and a piece Hh (89), wherein the piece B (10) is in sliding connection with the piece Dd (78), the piece Dd (78) and the piece Ee (79) are connected into a whole, the piece Ee (79) and the piece Ff (81) are connected into a whole, a sealing element e (80) is arranged between the piece Ee (79) and the matching surface of the piece Ff (81), the piece Ee (79) and the piece Gg (86) are connected by a bolt component B (82), the piece Ee (79) and the piece Gg (86) are connected by a sealing element f (85), the piece Hh (89) and the piece Gg (86) are connected by a bolt component c (90).

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