Internal access door of drying furnace in coating workshop

Abstract

The internal access door comprises a door body and a door frame, the door body comprises an outer door plate and an inner door plate, the outer door plate is in a cuboid shape with a cavity inside, the face, facing the inner door plate, of the outer door plate is provided with an opening, and the inner door plate is installed in the cavity of the outer door plate. An annular groove is formed between the outer side of the edge of the inner door plate and the inner side of the edge of the outer door plate, a sealing piece is arranged in the groove, the door frame is installed at an inlet of an inner air pipe in the drying furnace, and when the door body is in a closed state, the sealing piece covers the surface of the door frame. The sealing piece is convenient to install, meanwhile, the bottom face of the sealing piece covers the surface of the door frame, so that the door body, the sealing piece and the door frame are pressed and sealed, and due to the fact that the sealing piece is made of silica gel made of micro-elastic materials, when the door body is pressed on the outer surface of the door frame, the sealing piece is squeezed by the door body and the door frame, the sealing piece slightly deforms, and the sealing piece is not prone to deformation. And the sealing effect between the door body and the door frame is better.

Description

Technical Field

[0001] The utility model relates to the field of drying in a painting workshop, and specifically refers to an internal air duct inspection door for a drying furnace device in a painting workshop. Background Art

[0002] The painting workshop has relatively high requirements for cleanliness. As a key device among them, the hot air in the drying furnace enters the furnace after passing through filtration at the outlet of the internal air duct. As the passage for the furnace to enter the internal air duct, certain requirements are also imposed on the sealing performance of the internal air duct inspection door.

[0003] The existing internal inspection doors have relatively complex structures and it is difficult to install sealing rubber strips. Summary of the Invention

[0004] The purpose of the utility model is to solve the deficiencies in the background art and provide an internal air duct inspection door for a drying furnace with a simple structure and good sealing effect.

[0005] To achieve the above purpose, the technical solution of the utility model is as follows:

[0006] An internal inspection door for a drying furnace in a painting workshop, comprising a door body and a door frame. The door body includes an outer door panel and an inner door panel. The outer door panel is in the shape of a cuboid with a cavity inside. The side of the outer door panel facing the inner door panel is an opening. The inner door panel is installed in the cavity of the outer door panel. There is an annular groove between the outer edge of the inner door panel and the inner edge of the outer door panel. A sealing member is arranged in the groove. The door frame is installed at the entrance of the internal air duct inside the drying furnace. When the door body is in the closed state, the sealing member covers the surface of the door frame.

[0007] Furthermore, the inner door panel includes a cuboid and a plurality of flanges. The side of the cuboid facing the outer door panel is an opening. The cuboid includes a rectangular bottom surface, and an inner door panel top surface, an inner door panel bottom surface, an inner door panel left side surface and an inner door panel right side surface connected to the rectangular bottom surface. Each of the inner door panel top surface, the inner door panel bottom surface, the inner door panel left side surface and the inner door panel right side surface is connected with an outward flange.

[0008] Furthermore, each flange is connected to the back surface of the outer door panel.

[0009] Furthermore, an upper groove is formed between the inner door panel top surface and the outer door panel top surface, a left groove is formed between the inner door panel left side surface and the outer door panel left side surface, a bottom groove is formed between the inner door panel bottom surface and the outer door panel bottom surface, and a right groove is formed between the inner door panel right side surface and the outer door panel right side surface. The upper groove, the left groove, the bottom groove and the right groove are connected to form an annular groove.

[0010] Furthermore, the sealing member is in interference fit with the groove, and the sealing member is stuck in the groove.

[0011] Furthermore, the door body is connected to the inner air duct wall panel through a hinge, and support pieces are arranged at the part of the inner air duct wall panel close to the door frame. One side of the hinge is connected to the door body, and the other side is connected to the support piece.

[0012] Furthermore, the support piece is a channel-shaped plate.

[0013] The beneficial effects of the utility model are as follows:

[0014] 1. A continuous annular groove is formed between the inner side of the outer door panel edge and the outer side of the inner door panel edge of the utility model. The seal is clamped in the groove through interference fit, and the installation method of the seal is simple.

[0015] 2. When the inspection door of the utility model is in the closed state, the bottom surface of the seal covers the surface of the door frame, so that a pressing seal is achieved among the door body, the seal and the door frame. Since the seal is made of silica gel with a slightly elastic material, when the door body presses on the outer surface of the door frame, the seal is extruded by the door body and the door frame, and the seal undergoes a slight deformation, so that the sealing effect between the door body and the door frame is better. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the inspection door of the utility model.

[0017] Figure 2 It is a top view of the inspection door of the utility model.

[0018] Figure 3 It is a schematic diagram of the door frame of the utility model.

[0019] Figure 4 It is a cross-sectional view of the outer door panel and the inner door panel of the utility model.

[0020] Figure 5 It is a cross-sectional view after the outer door panel and the inner door panel of the utility model are combined together.

[0021] Figure 6 It is a schematic diagram of the handle of the utility model.

[0022] Figure 7 It is a schematic diagram of the door handle stopper of the utility model.

[0023] Wherein: door body 1; outer door panel 11; rectangular front surface 111; inner door panel 12; cuboid 121; rectangular bottom surface 1211; flanging 122; door frame 2; groove 3; seal 4; rib plate 5; handle 6; locking piece 61; L-shaped hook 101; bolt 7; hinge 8; support piece 9; door handle stopper 10. Detailed Embodiment

[0024] To make the objectives, technical solutions and advantages of the utility model clearer, the following further elaborates on the utility model in conjunction with the accompanying drawings.

[0025] The internal inspection door of the drying furnace in the painting workshop of the utility model is installed at the entrance or the doorway of the inner air duct inside the drying furnace and is used to isolate the inside and outside of the inner air duct.

[0026] The internal inspection door of the drying furnace in the painting workshop of the utility model includes a door body 1 and a door frame 2.

[0027] As Figure 1 、 Figure 2 shown, the door body 1 includes an outer door panel 11 and an inner door panel 12 connected to the outer door panel 11. The outer door panel 11 is in the shape of a cuboid with a cavity inside, and the outer door panel 11 is formed by bending. The side of the cuboid-shaped outer door panel 11 facing the inner door panel 12 is an opening. The cuboid-shaped outer door panel includes a rectangular front face 111, an outer door panel top surface, an outer door panel bottom surface, an outer door panel left side surface and an outer door panel right side surface connected to the rectangular front face 111.

[0028] As Figure 4 and Figure 5 shown, the inner door panel 12 includes a cuboid 121 and a plurality of flanges 122. The inner door panel 12 is formed by bending. The side of the cuboid 121 facing the outer door panel 11 is an opening. The cuboid 121 includes a rectangular bottom surface 1211, and an inner door panel top surface, an inner door panel bottom surface, an inner door panel left side surface and an inner door panel right side surface connected to the rectangular bottom surface 1211. Each of the inner door panel top surface, the inner door panel bottom surface, the inner door panel left side surface and the inner door panel right side surface has an outward flange 122. The flange 122 connected to the inner door panel top surface is as long as the inner door panel top surface, the flange 122 connected to the inner door panel bottom surface is as long as the inner door panel bottom surface, and the flanges 122 connected to the inner door panel left side surface or the inner door panel right side surface are respectively as long as the inner door panel left side surface or the inner door panel right side surface.

[0029] The inner door panel 12 is welded inside the cuboid-shaped outer door panel 11. Each flange 122 is respectively connected to the side of the rectangular front face 111 facing the inner door panel 12, that is, each flange 122 is connected to the back surface of the outer door panel 11, and each flange 122 is connected to the end of the back surface of the outer door panel 11 by intermittent welding.

[0030] A continuous annular groove 3 is formed between the inner side of the edge of the outer door panel 11 and the outer side of the edge of the inner door panel 12. Specifically, an upper groove is formed between the outer door panel top surface and the inner door panel top surface, a left groove is formed between the outer door panel left side surface and the inner door panel left side surface, a bottom groove is formed between the outer door panel bottom surface and the inner door panel bottom surface, and a right groove is formed between the outer door panel right side surface and the inner door panel right side surface. The upper groove, the left groove, the bottom groove and the right groove are connected to form an annular groove 3.

[0031] A seal 4 is arranged inside the annular groove 3. The shape of the seal 4 matches the shape of the groove 3. The seal 4 can be made of high-temperature resistant silica gel. The seal 4 is in interference fit with the groove 3 so that the seal 4 is stuck in the groove 3. The width of the seal 4 is slightly larger than the width of the groove 3. In a specific embodiment, the width of the groove is 20 mm, and the width of the seal 4 can be 22 mm.

[0032] As Figure 3 As shown, the door frame 2 is formed by connecting the upper and lower door frames and the left and right door frames end to end. The door frame 2 is installed at the entrance of the inner air duct inside the drying furnace, that is, at the door opening. When the inspection door of the present invention is in the closed state, the bottom surface of the seal 4 covers the surface of the door frame 2, so that a tight seal is achieved among the door body 1, the seal 4, and the door frame 3. Since the seal 4 is made of silica gel with a slightly elastic material, when the door body 1 presses on the outer surface of the door frame 2, the seal 4 is squeezed by the door body 1 and the door frame 2, and the seal 4 undergoes a slight deformation, making the sealing effect between the door body 1 and the door frame 2 better.

[0033] In the present invention, the door body 1 is installed on the body wall plate of the inner air duct inside the drying furnace through a hinge 8, and the door frame 2 is installed on the body wall plate at the door opening of the inner air duct. The door body 1 covers the upper surface of the door frame 2. The door body 1 slightly protrudes from the body wall plate of the inner air duct. A support piece 9 can be welded at a position on the body wall plate of the inner air duct close to the door frame 2. The support piece 9 can be a channel-shaped plate. The channel-shaped plate serves as a gasket for installing the hinge 8. One side of the hinge is connected to the door body 1, and the other side is connected to the channel-shaped plate to realize the opening and closing of the door body 1.

[0034] A handle 6 is installed on the door body 1, and a door handle stop block 10 is installed on the door frame 2. The door body 1 is locked through the handle 6 and the door handle stop block 10. The handle 6 and the door handle stop block 10 are common standard parts. The handle 6 and the door handle stop block 10 are respectively as Figure 6 、 Figure 7 shown. The handle 6 has a Z-shaped locking piece 61. The door handle stop block 10 is installed on the door frame 2 through screws. One side of the door handle stop block 10 is an L-shaped hook 101. When the inspection door is in the closed state, the upper horizontal part of the Z-shaped locking piece 61 is stuck at the corner of the L-shaped hook 101. The door body cannot be pushed into the inner air duct. When the upper horizontal part of the Z-shaped locking piece 61 is stuck at the corner of the L-shaped hook 101, the door body 1 is locked with the inner door frame 2. When the upper horizontal part of the Z-shaped locking piece 61 is no longer stuck at the corner of the L-shaped hook 101 by rotating the handle 6, the door body can be opened.

[0035] The manufacturing and installation method of the inspection door inside the drying furnace in the painting workshop of the present invention is as follows:

[0036] Lay the upper and lower door frames and the left and right door frames flat on the workbench, connect them end to end, and enclose and weld them into a rectangular frame structure to form the door frame 2.

[0037] Place the formed outer door panel 11 with the opening facing upwards and the large surface on the workbench. Weld the rib plates 5 on the surfaces of the outer door panel 11 and the inner door panel 12 to strengthen the strength of the door body, and fix the support member for installing the door handle to the outer door panel 11 by intermittent welding. Then place the inner door panel with the large surface facing upwards, make the flanging 122 fit with the end of the rectangular front surface 111 facing the inner door panel 12, and intermittently weld the flanging 122 to the outer door panel 11 so that the outer door panel 11 and the inner door panel 12 are connected to form the door body 1. Install the seal 4 in the groove 3, and install the handle 6 on the door body 1 with bolts 7 to form a complete inspection door.

[0038] Fix the completed door frame 2 to the inner air duct wall panel, install the door handle stopper 10 on the door frame 2, weld the support piece 9 to the part of the inner air duct wall panel close to the door frame 2, connect one side of the hinge 8 to the support piece 9, and connect the other side of the hinge 8 to the door body 1 to complete the installation of the internal inspection door.

[0039] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

Claims

1. An internal inspection door for a drying furnace in a painting workshop, comprising a door body (1) and a door frame (2), characterized in that: The door body (1) includes an outer door panel (11) and an inner door panel (12). The outer door panel (11) is in the shape of a cuboid with a cavity inside. The side of the outer door panel (11) facing the inner door panel (12) is an opening. The inner door panel (12) is installed in the cavity of the outer door panel (11). There is an annular groove (3) between the outer edge of the inner door panel (12) and the inner edge of the outer door panel (11). A seal (4) is arranged in the groove (3). The door frame (2) is installed at the entrance of the inner air duct inside the drying furnace. When the door body (1) is in the closed state, the seal (4) covers the surface of the door frame (2).

2. The internal inspection door of a drying furnace in a painting workshop according to claim 1, characterized in that: The inner door panel (12) includes a cuboid (121) and a plurality of flanges (122). The side of the cuboid (121) facing the outer door panel (11) is an opening. The cuboid (121) includes a rectangular bottom surface (1211), and an inner door panel top surface, an inner door panel bottom surface, an inner door panel left side surface and an inner door panel right side surface connected to the rectangular bottom surface (1211). Each of the inner door panel top surface, the inner door panel bottom surface, the inner door panel left side surface and the inner door panel right side surface is connected to an outward flange (122).

3. The internal inspection door of a drying furnace in a painting workshop according to claim 2, characterized in that: Each of the flanges (122) is connected to the back surface of the outer door panel (11).

4. A painting workshop drying furnace internal inspection door according to claim 2, characterized in that: An upper side groove is formed between the inner door panel top surface and the outer door panel top surface, a left side groove is formed between the inner door panel left side surface and the outer door panel left side surface, a bottom groove is formed between the inner door panel bottom surface and the outer door panel bottom surface, and a right side groove is formed between the inner door panel right side surface and the outer door panel right side surface. The upper side groove, the left side groove, the bottom groove and the right side groove are connected to form an annular groove (3).

5. The internal inspection door of a drying furnace in a painting workshop according to claim 1, characterized in that: The seal (4) is in interference fit with the groove (3), and the seal (4) is stuck in the groove (3).

6. The internal inspection door of a drying furnace in a painting workshop according to claim 1, wherein: The door body (1) is connected to the inner air duct wall panel through a hinge (8). A support piece (9) is arranged at a position on the inner air duct wall panel close to the door frame (2). One side of the hinge (8) is connected to the door body (1), and the other side is connected to the support piece (9).

7. The internal inspection door of a drying furnace in a painting workshop according to claim 6, characterized in that: The support piece (9) is a channel-shaped plate.

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