Negative pressure exhaust pipeline for discharging smoke dust generated by vertical and horizontal moving equipment

Abstract

The utility model discloses a negative pressure exhaust pipeline for discharging smoke dust generated by vertical and horizontal moving equipment. Comprising a smoke dust collecting cover installed on a machine head, a first-stage transfer air pipe installed on the machine head, a first-stage transfer air channel installed on a longitudinal moving frame in parallel with a transverse sliding beam, a second-stage transfer air pipe installed on the longitudinal moving frame, and a second-stage transfer air channel installed beside an operation area in parallel with a longitudinal sliding rail. The negative pressure exhaust pipe extends out of the room from the second-stage transfer air channel; the first-stage transfer air channel and the second-stage transfer air channel are each provided with a relatively-closed long and narrow inner cavity and an air inlet capable of moving in the length direction, one end of the first-stage transfer air pipe communicates with the smoke collecting cover, and the other end of the first-stage transfer air pipe communicates with the inner cavity of the first-stage transfer air channel through the air inlet of the first-stage transfer air channel. One end of the second-stage transfer air pipe is communicated with the inner cavity of the first-stage transfer air passage, and the other end of the second-stage transfer air pipe is communicated with the inner cavity of the second-stage transfer air passage through an air inlet of the second-stage transfer air passage The device has the advantages that a lengthy bent flexible pipeline does not need to be used for discharging flue gas from the indoor to the outdoor, so that the reciprocating motion of the device is not hindered, and the effect of absorbing and discharging the flue dust can be ensured.

Description

Technical Field

[0001] The utility model relates to a negative pressure exhaust pipeline for discharging smoke and dust generated by vertical and horizontal moving equipment, belonging to the technical field of indoor mechanical processing environmental protection. Background Art

[0002] A type of indoor mobile processing equipment will generate a large amount of smoke or dust at the processing point. For example, when a high-temperature cutting device is used to move and cut large plates indoors, a large amount of smoke and dust will be continuously generated at the cutting point. These smoke and dust will diffuse in the workshop and seriously affect the health of workers. Since the cutting equipment needs to move back and forth over long distances in the longitudinal and transverse directions during cutting, if a flexible exhaust pipe is used to follow the equipment to drag back and forth, the long and curved flexible exhaust pipe will block the moving route of the equipment, the flexible exhaust pipe will be damaged during repeated dragging, and the exhaust will be poor due to multiple bends in the flexible exhaust pipe, which is extremely difficult to implement. In order to reduce the harm of indoor smoke, the current practice is to install exhaust fans on the walls of the workshop and to open the doors and windows of the workshop to promote indoor air circulation and reduce the smoke concentration. Its defects are: there is still a certain concentration of smoke in the room, which cannot be completely removed, and the exhaust fans are large in power, large in number, and consume too much energy. Utility Model Content

[0003] The technical problem to be solved by the utility model is: how to collect and discharge the smoke generated by the processing equipment which moves longitudinally and transversely without using a long and curved flexible pipeline.

[0004] In view of the above problems, the technical solution proposed by the utility model is:

[0005] A negative pressure exhaust pipeline for discharging smoke generated by a vertical and horizontal moving device, comprising a smoke collecting hood installed on a machine head, a first-level transfer air pipe installed on the machine head, a first-level transfer air duct installed on a vertical moving frame in parallel with a horizontal sliding beam, a second-level transfer air pipe installed on the vertical moving frame, a second-level transfer air duct installed beside a working area in parallel with a vertical sliding rail, and a negative pressure exhaust pipe extending from the second-level transfer air duct to the outdoors; the first-level transfer air duct and the second-level transfer air duct both have a relatively closed narrow and long inner cavity and an air inlet that can move along the length direction, one end of the first-level transfer air pipe is connected to the smoke collecting hood, and the other end is connected to the inner cavity of the first-level transfer air duct through the air inlet of the first-level transfer air duct, one end of the second-level transfer air pipe is connected to the inner cavity of the first-level transfer air duct, and the other end is connected to the inner cavity of the second-level transfer air duct through the air inlet of the second-level transfer air duct.

[0006] The inner cavities of the primary transfer air duct and the secondary transfer air duct are formed by a narrow space surrounded by an annular belt mounted on two rotating wheels and an upper cover plate and a lower cover plate respectively covering the upper and lower ports of the narrow space. The belt can be reciprocated under the action of a force along the length direction of the inner cavity, and the air inlet is arranged on the front or rear side of the belt.

[0007] The first-level transfer air duct and the second-level transfer air duct also have an air outlet fixed on the upper cover plate.

[0008] The upper cover plate is provided with upper shaft holes at both ends, and the lower cover plate is provided with lower shaft holes at both ends. One rotating wheel is installed in the upper shaft hole at one end of the upper cover plate and in the lower shaft hole of one section of the lower cover plate through the rotating shafts at both ends, and the other rotating wheel is installed in the upper shaft hole at the other end of the upper cover plate and in the lower shaft hole of the other section of the lower cover plate through the rotating shafts at both ends.

[0009] The upper cover plate is close to the upper side of the belt, and the lower cover plate is close to the lower side of the belt.

[0010] The first-level transfer air pipe and the second-level transfer air pipe are both rigid pipes. The first-level transfer air pipe that moves back and forth laterally with the random head drives the belt reciprocating transmission of the first-level transfer air duct, and the second-level transfer air pipe that moves back and forth longitudinally with the longitudinal moving frame drives the belt reciprocating transmission of the second-level transfer air duct.

[0011] The smoke and dust collecting hood is installed above the air source point under the machine head, and the first-level switching air pipe has an extension pipe, and the first-level switching air pipe is connected with the smoke and dust collecting hood through the extension pipe.

[0012] The negative pressure exhaust pipe is provided with a fan for extracting air outwards.

[0013] The secondary transfer air pipe is directly fixed on the secondary transfer airway. Beneficial Effects

[0014] 1. It is not necessary to use a long and curved flexible pipe to discharge smoke from indoors to outdoors, so it will not hinder the reciprocating movement of the equipment and can ensure the effect of absorbing and discharging smoke;

[0015] 2. Simple structure and easy installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the negative pressure exhaust pipeline arranged on the vertical and horizontal mobile device, in which the secondary transfer airway is fixedly installed on the outer side of the vertical slide rail, but the fixing parts are not shown;

[0017] Figure 2 for Figure 1 A partial enlarged view of

[0018] Figure 3 It is a three-dimensional schematic diagram of the assembly of the primary transfer airway and the secondary transfer airway, and the part indicated by the curved arrow 10 in the figure is partially cut away;

[0019] Figure 4 for Figure 3 A three-dimensional schematic diagram after the upper cover plate and the lower cover plate are hidden;

[0020] Figure 5 is a three-dimensional schematic diagram of the upper cover plate;

[0021] Figure 6 is a three-dimensional schematic diagram of the lower cover plate;

[0022] Figure 7 A three-dimensional schematic diagram of assembling a rigid first-stage transfer air pipe and an extension pipe to connect a smoke and dust collection hood to the air inlet of the first-stage transfer air duct.

[0023] In the figure: 1. Smoke and dust collection hood; 2. First-level transfer air pipe; 3. First-level transfer air duct; 4. Second-level transfer air pipe; 5. Second-level transfer air duct; 6. Negative pressure exhaust pipe; 7. Belt; 701. Air inlet; 8. Upper cover plate; 801. Air outlet; 802. Upper shaft hole; 9. Lower cover plate; 901. Lower shaft hole; 10. Inner cavity; 11. Rotor; 111. Rotating shaft; 12. Fan; 13. Extension tube; 14. Longitudinal slide rail; 15. Longitudinal moving frame; 151. Horizontal slide beam; 152. Machine head; 153. Air source point. DETAILED DESCRIPTION

[0024] like Figure 1 , 2 As shown, the negative pressure exhaust pipeline in the present application is applied to processing equipment that generates smoke and dust during long-distance longitudinal and transverse movement in indoor mechanical processing, which has a longitudinal slide rail 14 longitudinally arranged on the site, a longitudinal moving frame 15 running on the longitudinal slide rail 14, a transverse slide beam 151 and a machine head 152 running on the transverse slide beam 151 on the longitudinal moving frame 15, and a cutting nozzle or welding nozzle that generates smoke and dust during operation, that is, the gas source point 153 described below, is under the machine head. During operation, the longitudinal moving frame 15 reciprocates on the longitudinal slide rail 14, and the machine head 152 reciprocates on the transverse slide beam 151.

[0025] The utility model is further described below in conjunction with the accompanying drawings:

[0026] like Figure 1 , 2, 3, a negative pressure exhaust pipeline for exhausting smoke generated by a vertical and horizontal mobile device, comprising a smoke collecting hood 1 installed on a machine head 152, a primary transfer air pipe 2 installed on the machine head 152, a primary transfer air duct 3 installed on a vertical moving frame 15 in parallel with a horizontal sliding beam 151, a secondary transfer air duct 4 installed on the vertical moving frame 15, a secondary transfer air duct 5 installed beside a working area in parallel with a vertical sliding rail 14, and a negative pressure exhaust pipe 6 extending from the secondary transfer air duct to the outdoors; The first-stage transfer air duct 3 and the second-stage transfer air duct 5 both have a relatively closed narrow inner cavity 10 and an air inlet 701 that can move along the length direction. One end of the first-stage transfer air pipe 2 is connected to the smoke collection hood 1, and the other end is connected to the inner cavity 10 of the first-stage transfer air duct 3 through the air inlet 701 of the first-stage transfer air duct 3. One end of the second-stage transfer air pipe 4 is connected to the inner cavity 10 of the first-stage transfer air duct 3, and the other end is connected to the inner cavity 10 of the second-stage transfer air duct 5 through the air inlet 701 of the second-stage transfer air duct 5. The length of the first-stage transfer air duct 3 meets the distance that the machine head 152 moves horizontally on the horizontal slide beam 151, and the length of the second-stage transfer air duct 5 meets the distance that the longitudinal frame 15 moves longitudinally on the longitudinal slide rail 14. When in use, the air inlet 701 of the primary transfer airway 3 moves back and forth synchronously with the head 152, and the primary transfer air pipe 2 maintains communication between the inner cavity 10 of the primary transfer airway 3 and the smoke collection hood 1 provided on the head 152; the air inlet 701 of the secondary transfer airway 5 moves back and forth synchronously with the longitudinal frame 15, and the secondary transfer air pipe 4 maintains communication between the inner cavity 10 of the secondary transfer airway 5 and the inner cavity 10 of the primary transfer airway 3 provided on the longitudinal frame 15. The negative pressure exhaust pipe 6 forms a negative pressure in the entire negative pressure exhaust pipeline, so that the smoke generated by the gas source point 153 is sucked into the smoke collection hood 1, and finally discharged to the outside from the outer port of the negative pressure exhaust pipe 6, thereby achieving the effect of eliminating the smoke generated by the indoor machine processing. Here, the relatively closed means that there is a small gap between the components constituting the inner cavity 10. Due to the negative pressure exhaust, in addition to allowing the smoke to enter the inner cavity 10, a small amount of external gas is also allowed to enter the inner cavity 10 and then be discharged together with the smoke. The secondary transfer air duct in the figure is fixedly installed on the site outside the longitudinal slide rail, but the fixings are not shown. In this way, there is no need to use a long and curved flexible pipe to discharge smoke from indoors to outdoors, so it will not hinder the reciprocating movement of the equipment and can ensure the effect of absorbing and discharging smoke.

[0027] As an option, the secondary transfer air pipe 4 may also be directly fixed on the secondary transfer airway 5 .

[0028] like Figure 3As shown in FIG. 6 , the inner cavities of the first-stage transfer airway and the second-stage transfer airway are formed by a narrow space surrounded by an annular belt 7 mounted on two rotating wheels 11 and an upper cover plate 8 and a lower cover plate 9 respectively covering the upper and lower ends of the narrow space. The belt 7 can be reciprocated under the action of a force along the length direction of the inner cavity 10, and the air inlet 701 is arranged on the front or rear side of the belt 7. The two rotating wheels 11 control the shape of the space surrounded by the belt 7 and facilitate the reciprocating transmission of the belt 7. When the belt 7 is reciprocating, the rotating wheels 11 rotate forward and backward.

[0029] The primary transfer air duct 3 and the secondary transfer air duct 5 also have an air outlet 801 fixed on the upper cover plate 8, and one end of the secondary transfer air pipe 4 connected to the secondary transfer air duct 5 is docked with the air outlet 801 of the primary transfer air duct 3, and the inner end of the negative pressure exhaust pipe 6 is docked with the air outlet 801 of the secondary transfer air duct 5.

[0030] Upper shaft holes 802 are respectively provided at both ends of the upper cover plate 8, and lower shaft holes 901 are respectively provided at both ends of the lower cover plate 9. One rotating wheel 11 is respectively installed in the upper shaft hole 802 at one end of the upper cover plate 8 and in the lower shaft hole 901 at one section of the lower cover plate 9 through the rotating shafts 111 at both ends, and another rotating wheel 11 is respectively installed in the upper shaft hole 802 at the other end of the upper cover plate 8 and in the lower shaft hole 901 at another section of the lower cover plate 9 through the rotating shafts 111 at both ends. The upper cover plate 8 is close to the upper side of the belt 7, and the lower cover plate 9 is close to the lower side of the belt 7, but a small gap is allowed between the belt 7 and the upper cover plate 8 and the lower cover plate 9.

[0031] like Figure 1 , 2 As shown, both the primary transfer air pipe 2 and the secondary transfer air pipe 4 are rigid pipes, and the primary transfer air pipe 2 that moves back and forth horizontally with the random head drives the belt 7 of the primary transfer airway 3 to reciprocate, and the secondary transfer air pipe 4 that moves back and forth longitudinally with the longitudinal moving frame 15 drives the belt 7 of the secondary transfer airway 5 to reciprocate. Of course, the primary transfer air pipe 2 and the secondary transfer air pipe 4 can also be flexible pipes, but fixed parts that can drive the belt 7 are respectively provided between the machine head 152 and the belt 7 of the primary transfer airway 3 and between the longitudinal moving frame 15 and the belt 7 of the secondary transfer airway 5.

[0032] like Figure 2 , 7 As shown, the smoke collecting hood 1 is installed above the air source point 153 under the machine head 152, and the first-level switching air pipe 2 has an extension pipe 13, and the first-level switching air pipe 2 is connected to the smoke collecting hood 1 through the extension pipe 13.

[0033] like Figure 1 As shown, the negative pressure exhaust pipe 6 is provided with a fan 12 for extracting air outwards. When the fan 12 is started, negative pressure is formed in the negative pressure exhaust pipeline within the entire fan.

[0034] The above-mentioned implementation modes are only used to more clearly describe the present invention, and cannot be regarded as limiting the protection scope of the present invention. Any modifications in equivalent forms shall be regarded as falling within the protection scope of the present invention.

Claims

1. A negative pressure exhaust pipeline for discharging smoke and dust generated by vertical and horizontal mobile equipment, characterized in that: The invention comprises a smoke collecting hood (1) installed on a machine head (152), a first-stage transfer air pipe (2) installed on the machine head (152), a first-stage transfer air duct (3) installed on a longitudinal frame (15) in parallel with a transverse slide beam (151), a second-stage transfer air pipe (4) installed on the longitudinal frame (15), a second-stage transfer air duct (5) installed beside an operating area in parallel with a longitudinal slide rail (14), and a negative pressure exhaust pipe (6) extending from the second-stage transfer air duct to the outside; the first-stage transfer air duct (3) and the second-stage transfer air duct (5) both have the same With respect to the closed narrow and long inner cavity (10) and the air inlet (701) movable along the length direction, one end of the first-stage transfer air pipe (2) is connected to the smoke collection cover (1), and the other end is connected to the inner cavity (10) of the first-stage transfer air duct (3) through the air inlet (701) of the first-stage transfer air duct (3); one end of the second-stage transfer air pipe (4) is connected to the inner cavity (10) of the first-stage transfer air duct (3), and the other end is connected to the inner cavity (10) of the second-stage transfer air duct (5) through the air inlet (701) of the second-stage transfer air duct (5).

2. The negative pressure exhaust pipeline for discharging smoke and dust generated by a vertical and horizontal mobile device according to claim 1 is characterized in that: The inner cavities of the primary transfer airway and the secondary transfer airway are formed by a narrow and long space surrounded by an annular belt (7) sleeved on two rotating wheels (11) and an upper cover plate (8) and a lower cover plate (9) respectively covering the upper and lower ends of the narrow and long space. The belt (7) can be reciprocated under the action of a force along the length direction of the inner cavity (10). The air inlet (701) is arranged on the front side or the rear side of the belt (7).

3. The negative pressure exhaust pipeline for discharging smoke and dust generated by a vertical and horizontal mobile device according to claim 2 is characterized in that: The first-level transit air duct (3) and the second-level transit air duct (5) also both have an air outlet (801) fixedly arranged on the upper cover plate (8).

4. The negative pressure exhaust pipeline for discharging smoke and dust generated by a vertical and horizontal mobile device according to claim 2 is characterized in that: The upper cover plate (8) is provided with upper shaft holes (802) at both ends, and the lower cover plate (9) is provided with lower shaft holes (901) at both ends. One rotating wheel (11) is installed in the upper shaft hole (802) at one end of the upper cover plate (8) and in the lower shaft hole (901) at one section of the lower cover plate (9) through the rotating shafts (111) at both ends, and the other rotating wheel (11) is installed in the upper shaft hole (802) at the other end of the upper cover plate (8) and in the lower shaft hole (901) at the other section of the lower cover plate (9) through the rotating shafts (111) at both ends.

5. The negative pressure exhaust pipeline for discharging smoke and dust generated by a vertical and horizontal mobile device according to claim 2 is characterized in that: The upper cover plate (8) is in close contact with the upper side of the belt (7), and the lower cover plate (9) is in close contact with the lower side of the belt (7).

6. The negative pressure exhaust pipeline for discharging smoke and dust generated by a vertical and horizontal mobile device according to claim 2 is characterized in that: The first-stage transfer air pipe (2) and the second-stage transfer air pipe (4) are both rigid pipes. The first-stage transfer air pipe (2) that moves back and forth laterally with the random head drives the belt (7) of the first-stage transfer air duct (3) to reciprocate, and the second-stage transfer air pipe (4) that moves back and forth longitudinally with the longitudinal moving frame (15) drives the belt (7) of the second-stage transfer air duct (5) to reciprocate.

7. The negative pressure exhaust pipeline for discharging smoke and dust generated by a vertical and horizontal mobile device according to claim 6 is characterized in that: The smoke collection hood (1) is installed above the air source point (153) under the machine head (152); the first-stage switching air pipe (2) has an extension pipe (13); and the first-stage switching air pipe (2) is connected to the smoke collection hood (1) via the extension pipe (13).

8. The negative pressure exhaust pipeline for discharging smoke and dust generated by a vertical and horizontal mobile device according to claim 1 is characterized in that: The negative pressure exhaust pipe (6) is provided with a fan (12) for extracting air outwards.

9. The negative pressure exhaust pipeline for discharging smoke and dust generated by a vertical and horizontal mobile device according to claim 2 is characterized in that: The secondary transfer air pipe (4) is directly fixed on the secondary transfer airway (5).

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