Dust-free industrial oven

Abstract

The utility model relates to the technical field of baking ovens, in particular to a dust-free industrial baking oven. Comprising a lower box body, the upper end of the lower box body is open, a fan is arranged in the lower box body, a heating assembly is fixed in the lower box body above the fan, one side of the upper end of the lower box body is rotationally connected with an upper box body, the upper end of the upper box body is open, the lower end of the upper box body blocks the upper end of the lower box body, an L-shaped supporting plate is fixed to one side of the lower box body, and an upper plate is inserted into the vertical part of the supporting plate; the lower end of the upper plate makes contact with the upper end of the upper box body, one end of the upper plate is rotationally connected with a rotating plate, the rotating plate makes contact with the upper end of the upper box body, the upper plate and the rotating plate block the upper end of the upper box body, and a plurality of through holes communicated with the lower box body are formed in a bottom plate of the upper box body. Air is driven by the fan to circulate in a closed loop formed by the lower box body, the upper box body, the air duct and the hose, and the air is continuously heated in combination with the heating pipe, so that heat loss is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of baking oven technology, specifically to a dust-free industrial oven. Background Technology

[0002] Industrial ovens are drying devices that provide a high-temperature environment and are widely used in fields such as precision electronics, new materials, and touch screens. An industrial oven contains a baking chamber where products are placed for processing and baking. In some existing industrial ovens, heated air is circulated between the air supply equipment, heating equipment, and the baking chamber. Dust present in the air can easily adhere to the heated products, thus affecting product quality.

[0003] Patent document CN220287977U discloses an industrial constant temperature dust-free baking oven, including a base, a box body mounted on the base, a front support plate and a rear support plate respectively located at both ends of the upper part of the box body along its length, and a top cover located on the upper end of the rear support plate. The front support plate is hinged to the box body. The box body has a mesh plate with several heating holes, and a heating element is installed inside the box body. The front support plate has a rotation range of 0-90°. When the front support plate rotates to 90°, it is parallel to the rear support plate, and its free end contacts the top cover. When the front support plate rotates to 0°, its upper surface is parallel to the mesh plate. This baking oven facilitates the handling of products being baked; however, it does not allow for hot air circulation, resulting in significant heat loss. Utility Model Content

[0004] The main purpose of this invention is to provide a dust-free industrial oven that can circulate hot air and remove dust from the hot air.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0006] A dust-free industrial oven includes a lower chamber with an opening at the top. A fan is installed inside the lower chamber, and a heating element is fixed inside the lower chamber above the fan. An upper chamber is rotatably connected to one side of the upper chamber, with an opening at the top. The lower end of the upper chamber seals the upper end of the lower chamber. An L-shaped support plate is fixed to one side of the lower chamber, and an upper plate is inserted into the vertical part of the support plate. The lower end of the upper plate contacts the upper end of the upper chamber. A rotating plate is rotatably connected to one end of the upper plate, contacting the upper end of the upper chamber. The upper plate and the rotating plate seal the upper end of the upper chamber. The bottom plate has multiple through holes that communicate with the lower housing. A filter screen is fixed to the upper end of the bottom plate of the upper housing. A duct is elastically slidably connected to the vertical part of the support plate. The movement direction of the duct is parallel to the axial direction of the duct. The end of the duct facing the upper housing is open. The open end of the duct is in sealed contact with the side wall of the upper housing. The open end of the duct is connected to the air hole on the side wall of the upper housing. The duct is connected to the inlet end of the fan through a flexible hose. A filter is installed on the flexible hose. The air flowing through the flexible hose can be filtered by the filter. The filter is fixed to the support plate.

[0007] Specifically, the upper end of the lower housing away from the support plate and the lower end of the upper housing away from the support plate are connected by multiple first hinges.

[0008] Specifically, the opposite ends of the upper plate and the rotating plate are connected by a plurality of second hinges.

[0009] Specifically, the heating assembly includes multiple heating tubes, which are fixed in the lower housing. There is a rectangular array of multiple through holes, with one heating tube fixed in the lower housing below each row of through holes.

[0010] Specifically, a sealing ring is fixed to the open end of the air duct, and the sealing ring is in sealing contact with the side wall of the upper housing. Ear plates are fixed to both the upper and lower ends of the air duct, and a smooth rod is slidably mounted on the ear plate. The smooth rod is fixedly connected to the support plate, and the ear plate and the support plate are connected by a spring.

[0011] Specifically, the sealing ring is a high-temperature resistant rubber ring.

[0012] Specifically, multiple insert rods are fixed at the lower end of the upper plate on the outer side of the upper box, and a fixing frame corresponding to the insert rods is fixed on the support plate, with the insert rods inserted into the fixing frame.

[0013] Specifically, both the lower end of the upper plate and the lower end of the rotating plate are fixed with a high-temperature resistant rubber layer, which is in contact with the upper end of the upper box.

[0014] Specifically, a sealing ring is fixedly and sealed to the upper end of the lower housing, and the lower end of the upper housing is in sealing contact with the sealing ring, which is a high-temperature resistant rubber ring.

[0015] Specifically, a handle is fixed to the upper end of the rotating plate, and an inverted L-shaped bracket is fixed to the outside of the lower box. The bracket is located below the first hinge, and the upper box can be supported by the bracket after rotating 90 degrees.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. Air is circulated in a closed loop consisting of the lower chamber, upper chamber, air duct, and hoses by a fan. Combined with the heating element, the air is continuously heated, significantly reducing heat loss. After the hot air enters the upper chamber evenly through the openings to bake the products, it flows back to the lower chamber through the filter for reheating, significantly improving heat utilization efficiency and reducing energy consumption.

[0018] 2. The filter at the bottom of the upper chamber prevents large dust particles and product debris from entering the circulation system. The circulating air is further purified by a filter connected by a hose to remove suspended particles, ensuring a dust-free baking environment and preventing product surface contamination.

[0019] 3. The upper housing can rotate 90° via the first hinge and is secured with an inverted L-shaped bracket, facilitating the storage and retrieval of large-volume products. The upper plate and the rotating plate are connected via the second hinge, allowing for complete disassembly and quick cleaning of internal debris or removal of small workpieces.

[0020] 4. The air duct achieves elastic extension and retraction via springs and a guide rod, ensuring that the sealing ring automatically fits the air vent after the upper housing rotates and resets, preventing heat leakage and accommodating frequent opening and closing. The air duct sealing ring, the high-temperature resistant rubber layer of the upper plate and rotating plate, and the upper housing sealing ring are all made of high-temperature resistant materials, maintaining airtightness in high-temperature environments and preventing hot air from escaping. This multi-layered sealing structure forms a three-dimensional protection, further reducing the risk of dust intrusion.

[0021] 5. The handle design facilitates the operation of the rotating plate, and the bracket limits the rotation angle of the upper box to avoid the risk of accidental tipping.

[0022] 6. The through-holes of the rectangular array are matched with the layout of the heating tubes to ensure uniform heat flow distribution and prevent local overheating that could damage the product. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the present invention.

[0024] Figure 2 for Figure 1 Sectional view along the AA direction.

[0025] Figure 3 This is a cross-sectional view of the ventilation duct.

[0026] The components in the attached diagram are named as follows: 1. Lower housing, 2. Upper housing, 3. First hinge, 4. Support plate, 5. Top plate, 6. Rotating plate, 7. Second hinge, 8. Insert rod, 9. Fixing frame, 10. Handle, 11. Fan, 12. Hose, 13. Air duct, 14. Sealing ring, 15. Air vent, 16. Ear plate, 17. Smooth rod, 18. Spring, 19. Heating tube, 20. Through hole, 21. Filter screen, 22. Sealing ring, 23. Bracket, 24. Filter. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] Example 1: Refer to Figures 1-3 As shown, a dust-free industrial oven includes a lower chamber 1 with an opening at the upper end. A fan 11 is installed inside the lower chamber 1, and a heating component is fixed inside the lower chamber 1 above the fan 11.

[0029] The upper housing 2 is rotatably connected to one side of the upper end of the lower housing 1. Specifically, the upper end of the lower housing 1 away from the support plate 4 and the lower end of the upper housing 2 away from the support plate 4 are connected by multiple first hinges 3. The upper end of the upper housing 2 is open, and the lower end of the upper housing 2 seals the upper end of the lower housing 1. A sealing ring 22 is fixedly and sealingly connected to the upper end of the lower housing 1, and the lower end of the upper housing 2 is in sealing contact with the sealing ring 22. The sealing ring 22 is a high-temperature resistant rubber ring.

[0030] The bottom plate of the upper box 2 has multiple through holes 20 that communicate with the lower box 1, and a filter screen 21 is fixed at the upper end of the bottom plate of the upper box 2.

[0031] The heating assembly includes multiple heating tubes 19, which are fixed inside the lower housing 1. Multiple through holes 20 are arranged in a rectangular array, with one heating tube 19 fixed inside the lower housing 1 below each row of through holes 20.

[0032] An L-shaped support plate 4 is fixed to one side of the lower housing 1, and an upper plate 5 is inserted into the vertical part of the support plate 4. Specifically, multiple insert rods 8 are fixed to the lower end of the upper plate 5 on the outer side of the upper housing 2, and a fixing frame 9 corresponding to the insert rods 8 is fixed on the support plate 4, with the insert rods 8 inserted into the fixing frame 9.

[0033] The lower end of the upper plate 5 contacts the upper end of the upper housing 2. A rotating plate 6 is rotatably connected to one end of the upper plate 5, and the rotating plate 6 contacts the upper end of the upper housing 2. The upper plate 5 and the rotating plate 6 seal the upper end of the upper housing 2. Specifically, the opposite ends of the upper plate 5 and the rotating plate 6 are connected by multiple second hinges 7. A high-temperature resistant rubber layer is fixed to the lower end of both the upper plate 5 and the lower end of the rotating plate 6, and the high-temperature resistant rubber layer contacts the upper end of the upper housing 2.

[0034] A duct 13 is elastically slidably connected to the vertical part of the support plate 4, and the direction of movement of the duct 13 is parallel to the axial direction of the duct 13. Specifically, ear plates 16 are fixed at both the upper and lower ends of the duct 13, and a smooth rod 17 is slidably arranged on the ear plate 16. The smooth rod 17 is fixedly connected to the support plate 4, and the ear plate 16 and the support plate 4 are connected by a spring 18.

[0035] The air duct 13 has an opening at one end facing the upper housing 2. The opening end of the air duct 13 is in sealed contact with the side wall of the upper housing 2, and the opening end of the air duct 13 is connected to the air hole 15 on the side wall of the upper housing 2. Specifically, a sealing ring 14 is fixed on the opening end of the air duct 13. The sealing ring 14 is in sealed contact with the side wall of the upper housing 2, and the sealing ring 14 is a high-temperature resistant rubber ring.

[0036] The air duct 13 is connected to the inlet end of the fan 11 through a flexible hose 12. A filter 24 is installed on the flexible hose 12. The air flowing through the flexible hose 12 can be filtered by the filter 24, which is fixed on the support plate 4.

[0037] During operation, the rotating plate 6 opens the upper part of the upper chamber 2, and then the products to be baked can be placed into the upper chamber 2. The filter screen 21 can prevent small products from leaking into the lower chamber 1 through the through hole 20.

[0038] After the product is placed into the upper box 2, rotate the rotating plate 6 and seal the upper end of the upper box 2.

[0039] The fan 11 and heating element 19 are started. The fan 11 circulates air through the lower chamber 1, upper chamber 2, air vent 15, air duct 13, hose 12, filter 24, and the fan 11 itself. The filter 24 filters the air. The heating element 19 heats the circulating air. The heated air then bakes the product inside the upper chamber 2.

[0040] like Figure 2 As shown, when it is necessary to clean the debris inside the upper box 2, or when the product to be baked is small, the upper plate 5 and the rotating plate 6 are moved upwards, and the insert rod 8 is pulled out from the fixed frame 9, so that the upper plate 5 and the rotating plate 6 are separated from the upper box 2.

[0041] Then the upper box 2 can be rotated to the right. After the upper box 2 is rotated to the right, it is convenient to pour out the debris or small products inside the upper box 2, which can improve the efficiency of cleaning debris and taking out small products.

[0042] Because the air duct 13 is elastically connected to the support plate 4, after the upper box 2 is rotated and reset, under the elastic force of the spring 18, the open end of the air duct 13 can be sealed to the upper box 2 through the sealing ring 14, thus preventing high-temperature air leakage during high-temperature air circulation and reducing heat loss.

[0043] Example 2: Based on Example 1, referring to... Figure 2 As shown, a handle 10 is fixed to the upper end of the rotating plate 6, and an inverted L-shaped bracket 23 is fixed to the outside of the lower box 1. The bracket 23 is located below the first hinge 3, and the upper box 2 can be supported by the bracket 23 after rotating 90 degrees.

[0044] The upper box 2 can be stopped after rotating 90 degrees, preventing excessive rotation of the upper box 2 from injuring workers. At the same time, it facilitates the storage and retrieval of large-volume products.

[0045] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dust-free industrial oven, comprising a lower chamber (1), an opening at the upper end of the lower chamber (1), a fan (11) disposed inside the lower chamber (1), and a heating assembly fixed inside the lower chamber (1) above the fan (11), characterized in that, The upper box (2) is rotatably connected to one side of the upper end of the lower box (1). The upper box (2) is open at the top and the lower end of the upper box (2) is sealed to the upper end of the lower box (1). An L-shaped support plate (4) is fixed to one side of the lower box (1). An upper plate (5) is inserted into the vertical part of the support plate (4). The lower end of the upper plate (5) is in contact with the upper end of the upper box (2). A rotating plate (6) is rotatably connected to one end of the upper plate (5). The rotating plate (6) is in contact with the upper end of the upper box (2). The upper plate (5) and the rotating plate (6) seal the upper end of the upper box (2). Multiple through holes (20) communicating with the lower box (1) are opened on the bottom plate of the upper box (2). A filter is fixed at the upper end of the bottom plate of the upper box (2). A duct (13) is elastically slidably connected to the vertical part of the net (21) and the support plate (4). The direction of movement of the duct (13) is parallel to the axial direction of the duct (13). The duct (13) is open at one end facing the upper box (2). The open end of the duct (13) is in sealed contact with the side wall of the upper box (2). The open end of the duct (13) is connected to the air hole (15) on the side wall of the upper box (2). The duct (13) is connected to the inlet end of the fan (11) through a hose (12). A filter (24) is installed on the hose (12). The air flowing through the hose (12) can be filtered by the filter (24). The filter (24) is fixed on the support plate (4).

2. The dust-free industrial oven according to claim 1, characterized in that, The upper end of the lower housing (1) away from the support plate (4) and the lower end of the upper housing (2) away from the support plate (4) are connected by a plurality of first hinges (3).

3. The dust-free industrial oven according to claim 1, characterized in that, The opposite ends of the upper plate (5) and the rotating plate (6) are connected by a plurality of second hinges (7).

4. The dust-free industrial oven according to claim 1, characterized in that, The heating assembly includes multiple heating tubes (19), which are fixed inside the lower housing (1). Multiple through holes (20) are arranged in a rectangular array, and a heating tube (19) is fixed inside the lower housing (1) below each row of through holes (20).

5. The dust-free industrial oven according to claim 1, characterized in that, A sealing ring (14) is fixed on the open end of the air duct (13). The sealing ring (14) is in sealing contact with the side wall of the upper box (2). Ear plates (16) are fixed at both the upper and lower ends of the air duct (13). A smooth rod (17) is slidably arranged on the ear plate (16). The smooth rod (17) is fixedly connected to the support plate (4). The ear plate (16) and the support plate (4) are connected by a spring (18).

6. The dust-free industrial oven according to claim 5, characterized in that, The sealing ring (14) is a high-temperature resistant rubber ring.

7. The dust-free industrial oven according to claim 1, characterized in that, Multiple insert rods (8) are fixed at the lower end of the upper plate (5) on the outer side of the upper box (2), and a fixing frame (9) corresponding to the insert rods (8) is fixed on the support plate (4), and the insert rods (8) are inserted into the fixing frame (9).

8. The dust-free industrial oven according to claim 1, characterized in that, The lower ends of the upper plate (5) and the lower ends of the rotating plate (6) are both fixed with high-temperature resistant rubber layers, which are in contact with the upper end of the upper box (2).

9. The dust-free industrial oven according to claim 1, characterized in that, The upper end of the lower housing (1) is fixedly sealed with a sealing ring (22), and the lower end of the upper housing (2) is in sealing contact with the sealing ring (22). The sealing ring (22) is a high-temperature resistant rubber ring.

10. A dust-free industrial oven according to claim 2, characterized in that, The upper end of the rotating plate (6) is fixed with a handle (10), and the outer side of the lower box (1) is fixed with an inverted L-shaped bracket (23). The bracket (23) is located below the first hinge (3), and the upper box (2) can be supported by the bracket (23) after rotating 90 degrees.

Images