Flue gas collecting hood

Abstract

The utility model discloses a flue gas collecting hood. The smoke collecting hood comprises a base plate, a folding frame, a smoke gathering hood body, a sealing and blocking curtain, a folding driving mechanism and a smoke exhauster, the smoke gathering hood body is fixed to the folding frame and unfolded and folded along with the folding frame, the folding frame is installed on the base plate, one side of the smoke gathering hood body is blocked by the base plate, the sealing and blocking curtain is installed on the smoke gathering hood body, and the folding driving mechanism is installed on the smoke exhauster. The sealing and blocking curtain is used for sealing the other side of the smoke gathering cover, the smoke exhauster is installed on the base plate and used for exhausting smoke in the smoke gathering cover out of the smoke gathering cover, and the folding driving mechanism is installed on the base plate, connected with the folding frame and used for driving the folding frame to be unfolded or folded. The flue gas collecting hood disclosed by the utility model can be used for collecting flue gas generated by welding.

Description

Technical Field

[0001] The utility model relates to the technical field of welding and maintenance of graphite blank boxes, in particular to a fume collecting hood. Background Art

[0002] Graphite blank molds will be damaged after long-term use. The cost of direct replacement is high, so the graphite blank molds are repaired. The damaged parts are repaired by welding. Currently, the repair of graphite blank molds is usually carried out in the open space of the factory, but a large amount of smoke is generated during welding, which pollutes the factory environment. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a fume collecting hood which can collect the fume generated by welding.

[0004] In order to solve the above problems, the utility model provides a smoke collection hood, which includes a base plate, a folding frame, a smoke collecting hood, a sealing curtain, a folding drive mechanism and a smoke exhauster. The smoke collecting hood is fixed on the folding frame, and the smoke collecting hood is unfolded and folded following the folding frame. The folding frame is installed on the base plate, one side of the smoke collecting hood is blocked by the base plate, the sealing curtain is installed on the smoke collecting hood, the sealing curtain is used to block the other side of the smoke collecting hood, the smoke exhauster is installed on the base plate, the smoke exhauster is used to discharge the smoke in the smoke collecting hood out of the smoke collecting hood, the folding drive mechanism is installed on the base plate, and the folding drive mechanism is connected to the folding frame, and the folding drive mechanism is used to drive the folding frame to unfold or fold.

[0005] Furthermore, the height of the blocking curtain is smaller than the height of the smoke collecting hood.

[0006] Furthermore, the base plate includes a column and a mounting plate, columns are fixed on both sides of the mounting plate, and the smoke exhauster is fixed on the mounting plate.

[0007] Furthermore, a diagonal brace is fixed on the column to enhance the stability of the column.

[0008] Furthermore, the folding drive mechanism includes a slide rail, a slider and a folding driver, the slide rail is installed on the base plate, the slider is slidably arranged on the slide rail, the folding driver is installed on the base plate, the folding driver is connected to the slider, the lower end of the folding frame is hinged to the slider, and the upper end of the folding frame is fixed on the base plate.

[0009] Furthermore, the sliding block is provided with a hinge shaft for connecting with the folding frame and the folding drive at the same time.

[0010] Furthermore, the folding drive is connected to the slider via a connecting rod.

[0011] Furthermore, the smoke exhauster includes a smoke exhaust air inlet pipe, an air induced draft hood and a smoke exhaust air outlet pipe, the smoke exhaust air inlet pipe is installed on the smoke exhaust air outlet pipe, the smoke exhaust air inlet pipe is connected to the smoke exhaust air outlet pipe, the smoke exhaust air inlet pipe is provided with an air inlet, an air induced draft hood is provided at the air inlet, and the cross-section of the air induced draft hood is larger than the cross-section of the air inlet.

[0012] Furthermore, the air inlet is provided with a mounting pipe, and a smoke exhaust fan is provided in the mounting pipe.

[0013] Furthermore, a fixing screw is provided on the installation tube or the smoke exhaust air inlet pipe, the air hood is passed through the fixing screw, and two nuts are provided on the fixing screw, and the two nuts are located on both sides of the air hood.

[0014] The utility model discloses a smoke collecting hood that collects smoke through a smoke collecting hood and then discharges the smoke through a smoke exhauster, thereby preventing smoke and dust from polluting a factory building. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a preferred embodiment of the smoke collecting hood of the utility model.

[0016] Figure 2 It is a side view of the smoke collecting hood of the utility model.

[0017] Figure 3 It is a schematic diagram of the structure of the substrate.

[0018] Figure 4 yes Figure 1 A partial enlarged view of middle A.

[0019] Figure 5 It is a structural schematic diagram of the folding drive mechanism.

[0020] Figure 6 It is a structural diagram of the slider.

[0021] Figure 7 It is a schematic diagram of the structure of the smoke exhauster.

[0022] Figure 8 This is a schematic diagram of the structure of the smoke exhauster without the induced draft hood.

[0023] Fig. 9 It is a schematic diagram of the internal structure of the smoke exhauster.

[0024] The meanings of the symbols in the accompanying drawings are:

[0025] Base plate 1, column 11, mounting plate 12, diagonal brace 13, folding frame 2, smoke hood 3, sealing curtain 4, folding drive mechanism 5, slide rail 51, slider 52, hinge shaft 521, folding driver 53, connecting rod 54, mounting block 55, smoke exhauster 6, air inlet 60, smoke exhaust air inlet duct 61, induced draft hood 62, smoke exhaust air outlet duct 63, mounting tube 64, fixing screw 65, nut 65, smoke exhaust fan 67. DETAILED DESCRIPTION

[0026] The utility model will be further described below in conjunction with the accompanying drawings.

[0027] like Figure 1 and Figure 2 As shown, the preferred embodiment of the fume collecting hood of the utility model comprises a base plate 1, a folding frame 2, a fume collecting hood 3, a blocking curtain 4, a folding driving mechanism 5 and a smoke exhauster 6. The fume collecting hood 3 is fixed on the folding frame 2, and the fume collecting hood 3 is unfolded and folded following the folding frame 2. When the folding frame 2 is unfolded, the fume collecting hood 3 gathers the fume. The folding frame 2 is mounted on the base plate 1, and one side of the fume collecting hood 3 is blocked by the base plate 1; the smoke exhauster 6 is mounted on the base plate 1, and the smoke exhauster 6 is used to discharge the fume in the fume collecting hood 3 out of the fume collecting hood. The smoke exhauster 6 is located at one end of the working space. When the smoke exhauster 6 exhausts the fume, the fume is inclined to flow upward, and the fume will not flow vertically upward, and will not affect the sight of the welding workers, thereby improving the welding quality. The blocking curtain 4 is mounted on the fume collecting hood 3, and the blocking curtain 4 is used to block the other side of the fume collecting hood 3. The height of the blocking curtain 4 is less than the height of the fume collecting hood 3, so as to ensure that the air outside the fume collecting hood 3 can enter from one side of the blocking curtain 4. The folding driving mechanism 5 is installed on the base plate 1 and connected to the folding frame 2 . The folding driving mechanism 5 is used to drive the folding frame 2 to unfold or fold.

[0028] Combination Figure 3 For reference, the base plate 1 includes a column 11 and a mounting plate 12. There are two columns 11, and both sides of the mounting plate 12 are fixed on the two columns 11. The smoke exhauster 6 is installed on the mounting plate 12. The mounting plate 12 is used to block one side of the smoke hood 3. The column 11 is fixed on the ground. The upper end of the folding frame 2 is hinged on the column 11, and the lower end of the folding frame 2 is slidably arranged on the base plate 1 through the folding drive mechanism 5. The column 11 is fixed with an oblique brace 13, and the oblique brace 13 is used to strengthen the stability of the column 11.

[0029] Combination Figures 3 to 6For reference, the folding drive mechanism 5 includes a slide rail 51, a slider 52 and a folding driver 53. The slide rail 51 is mounted on the column 11, the slider 52 is slidably mounted on the slide rail 51, the slider 52 is provided with a hinge shaft 521, the upper end of the folding frame 2 is hinged to the upper end of the column 11, and the lower end of the folding frame 2 is hinged to the slider 52. The folding driver 53 is mounted on the column 11 through a mounting block 55, the folding driver 53 is provided with a connecting rod 54, the connecting rod 54 is connected to the slider 52, and the folding driver 53 is used to drive the slider 52 to slide on the slide rail 51, thereby driving the folding frame 2 to fold and unfold.

[0030] like Figures 7 to 9 As shown, the smoke exhauster 6 includes a smoke exhaust air inlet pipe 61, an air induced hood 62 and a smoke exhaust air outlet pipe 63. The smoke exhaust air inlet pipe 61 is installed on the smoke exhaust air outlet pipe 63, and the smoke exhaust air inlet pipe 61 is connected with the smoke exhaust air outlet pipe 63. The smoke exhaust air inlet pipe 61 is provided with three air inlets 60, and an air induced hood 62 is provided at each air inlet 60. The cross section of the air induced hood 62 is larger than the cross section of the air inlet 60, so that the smoke enters the air inlet 60 in the reverse direction from the welding point to the smoke exhauster 6. There is a certain gap between the bottom surface of the air induced hood 62 and the end surface of the air inlet 60, ensuring that the smoke can enter the smoke exhaust air inlet pipe 61 from the air inlet 60. The smoke exhaust air outlet pipe 63 is directly or indirectly connected to an external smoke treatment device. In order to facilitate the installation of the smoke exhaust fan 67, a mounting tube 64 is provided at the air inlet 60, and the smoke exhaust fan 67 is installed in the mounting tube 64. The smoke exhaust fan 67 is used to introduce smoke into the smoke exhaust air inlet pipe 61 and then discharge it from the smoke exhaust air outlet pipe 63. In other embodiments, the smoke exhaust fan 67 can also be installed in the smoke exhaust air outlet pipe 63. A fixing screw 65 is provided on the mounting tube 64, and the induced draft hood 62 is passed through the fixing screw 65. Two nuts 65 are provided on the fixing screw 65. The two nuts 65 are located on both sides of the induced draft hood 62. The nuts 65 are used to limit the position of the induced draft hood 62, so as to fix the induced draft hood 62 on the fixing screw 65. In other embodiments, the fixing screw 65 can be directly welded to the smoke exhaust air inlet pipe 61.

[0031] When the exhaust fan 67 is running, smoke enters the exhaust air inlet pipe 61 from the gap between the mounting pipe 64 and the induced draft hood 62, and then is collected and discharged from the exhaust air outlet pipe 63. Smoke enters the exhaust air inlet pipe 61 from around the air inlet 60, and all smoke can be sucked into the exhaust air inlet pipe 61, thereby improving the exhaust effect.

[0032] When maintenance is needed, the folding frame 2 is folded first, and the graphite blank is hoisted onto the turning device by the crane, and then the folding driver 53 drives the folding frame 2 to unfold. After it is fully unfolded, maintenance can be carried out. During maintenance, the smoke exhaust fan 67 is started to discharge the generated smoke out of the smoke hood 3. The smoke exhaust fan 67 can also be started first, as long as it is started before welding maintenance. The smoke hood 3 gathers the smoke and does not let the smoke float freely in the factory. At the same time, the smoke exhauster 6 discharges the smoke out of the smoke hood 3, so that the smoke hood 3 will not be smoky, the field of vision is clear, and the environment is good. The smoke exhauster 6 is at one end of the smoke hood 3, so that the smoke flows upward obliquely and does not directly impact the head of the person vertically upward, so that the maintenance personnel can always maintain a good field of vision and it is more convenient for maintenance. Since the induced draft hood 62 is provided at the air inlet 60, the smoke enters the smoke exhaust air inlet pipe 61 through the annular gap between the induced draft hood 62 and the mounting pipe 64, and can suck away all the smoke around, thereby improving the smoke exhaust effect.

[0033] The above are only implementation methods of the present utility model, and are not intended to limit the patent scope of the present utility model. Any equivalent structure made using the contents of the specification and drawings of the present utility model, directly or indirectly used in other related technical fields, are also within the patent protection scope of the present utility model.

Claims

1. A fume collecting hood, characterized in that: The utility model comprises a base plate, a folding frame, a smoke collecting hood, a sealing curtain, a folding driving mechanism and a smoke exhauster. The smoke collecting hood is fixed on the folding frame, and the smoke collecting hood is unfolded and folded following the folding frame. The folding frame is mounted on the base plate, and one side of the smoke collecting hood is blocked by the base plate. The sealing curtain is mounted on the smoke collecting hood, and the sealing curtain is used to block the other side of the smoke collecting hood. The smoke exhauster is mounted on the base plate, and the smoke exhauster is used to discharge the smoke in the smoke collecting hood out of the smoke collecting hood. The folding driving mechanism is mounted on the base plate, and the folding driving mechanism is connected to the folding frame, and the folding driving mechanism is used to drive the folding frame to unfold or fold.

2. The fume collecting hood according to claim 1, characterized in that: The height of the blocking curtain is smaller than the height of the smoke collecting hood.

3. The fume collecting hood according to claim 1, characterized in that: The base plate comprises a column and a mounting plate, columns are fixed on both sides of the mounting plate, and the smoke exhauster is fixed on the mounting plate.

4. The fume collecting hood according to claim 3, characterized in that: An oblique brace for enhancing the stability of the column is fixed on the column.

5. The fume collecting hood according to claim 1, characterized in that: The folding drive mechanism includes a slide rail, a slider and a folding driver, the slide rail is installed on the base plate, the slider is slidably arranged on the slide rail, the folding driver is installed on the base plate, the folding driver is connected to the slider, the lower end of the folding frame is hinged to the slider, and the upper end of the folding frame is fixed on the base plate.

6. The fume collecting hood according to claim 5, characterized in that: The slide block is provided with an articulated shaft for being connected with the folding frame and the folding drive at the same time.

7. The fume collecting hood according to claim 5, characterized in that: The folding drive is connected with the slide block via a connecting rod.

8. The fume collecting hood according to claim 1, characterized in that: The smoke exhauster includes a smoke exhaust air inlet pipe, an air induced draft hood and a smoke exhaust air outlet pipe. The smoke exhaust air inlet pipe is installed on the smoke exhaust air outlet pipe, the smoke exhaust air inlet pipe is connected with the smoke exhaust air outlet pipe, the smoke exhaust air inlet pipe is provided with an air inlet, an air induced draft hood is provided at the air inlet, and the cross-section of the air induced draft hood is larger than the cross-section of the air inlet.

9. The fume collecting hood according to claim 8, characterized in that: The air inlet is provided with a mounting pipe, and a smoke exhaust fan is arranged inside the mounting pipe.

10. The fume collecting hood according to claim 9, characterized in that: The installation tube or the smoke exhaust air inlet tube is provided with a fixing screw rod, the air induced hood is passed through the fixing screw rod, and two nuts are provided on the fixing screw rod, and the two nuts are located at two sides of the air induced hood.

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