Dust-free clean oven

Abstract

The utility model discloses a dust-free clean drying oven which comprises an oven body, and a drying cavity is formed in the oven body. The grid holes are formed in the upper end of the box body; the filter is arranged at the upper end of the grating hole; the upper housing is arranged at the upper end of the filter; a high-pressure fan; a hose is arranged between the upper housing and the high-pressure fan; two cover opening parts are symmetrically arranged between the upper housing and the box body; and the cover opening part is used for enabling the upper housing to be turned upwards. The filter is completely exposed by turning over and opening the upper housing, so that the filter is convenient to check, maintain, disassemble and assemble; in the opening process of the upper cover shell, the upper cover shell translates upwards and then overturns backwards, so that the communication and sealing effects of the upper cover shell and the filter in a buckled state can be guaranteed; and meanwhile, the handle can keep the opening position of the upper housing. Meanwhile, a water outlet is formed, so that water in the drying cavity is conveniently discharged; and a material placing frame is further arranged, so that dried objects are convenient to take and place.

Description

Technical Field

[0001] The utility model belongs to the technical field of cleaning equipment, in particular to a dust-free clean oven. Background Art

[0002] In the manufacturing and processing of optical glass and semiconductor industries, high-temperature drying operations are required in a clean environment. Traditional drying operations involve creating a closed, constant-temperature environment inside an oven, and then performing a cleansing process in the closed space. In this way, the drying operation often depends on the oven temperature and often requires a long baking time. How to perform drying operations in a dust-free environment in a short time is a necessary way to improve production efficiency during the processing process.

[0003] Chinese patent publication number CN210425819U discloses a dust-free clean oven, comprising an oven body, an oven door rotatably connected to one side of the oven body, at least one drying rack detachably connected to the interior of the oven body, and slidably connected to the oven body via a sliding track. The drying rack includes two fixed frames, connected by a connecting rod at one end of the fixed frames near the sliding track. The drying rack has multiple sets of mounting claws detachably connected to it along its height, with a drying plate detachably connected between each set of mounting claws. A heater is provided within the oven body, and a fan is provided on the side of the oven body near the heater. This utility model has the advantages of providing a detachable drying rack and multiple detachable drying plates on the drying rack, allowing not only the entire drying rack to be disassembled to remove all items, but also the drying plates to be removed to remove individual items, thereby facilitating the placement and removal of items.

[0004] Dust and impurities introduced when opening the oven door to access items, as well as those carried by the items themselves, will inevitably contaminate the filters during long-term drying operations. To ensure that the dust-free cleanroom oven consistently delivers excellent drying results and clean hot air flow, the filters should be regularly inspected and cleaned. Dust-free cleanroom ovens require filters with strong filtration and high-temperature resistance, resulting in significantly larger and heavier filters than conventional filters. The aforementioned patented solution requires the removal of numerous parts for inspection and cleaning, and due to the filter's bulk and weight, the process of loading and unloading for inspection is extremely inconvenient. Summary of the Invention

[0005] In order to overcome the technical problem in the prior art that the filters of dust-free clean ovens need to be regularly inspected and cleaned, but the operation is inconvenient due to the large size and weight of the filters and the need to remove many parts; one purpose of the utility model is to provide a dust-free clean oven, by placing an external filter on the top of the box body and directly fastening the upper cover shell above the filter to achieve sealed installation of the filter and air path communication, and at the same time providing an opening portion for opening the upper cover shell to facilitate direct operation of the filter.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a dust-free clean drying oven, characterized in that: it includes a box body, a drying chamber is provided in the box body; a grille hole, the grille hole is provided at the upper end of the box body and is connected with the top of the drying chamber; a filter, the filter is provided at the upper end of the grille hole; an upper cover shell, the upper cover shell is provided at the upper end of the filter; a high-pressure fan, the high-pressure fan is provided in the box body, the air inlet of the high-pressure fan is connected with the lower end of the drying chamber, and the air outlet is connected with the upper cover shell; wherein, the filter is used to filter the gas in the upper cover shell and then enter the drying chamber; a hose is provided between the upper cover shell and the high-pressure fan; two opening parts are symmetrically provided between the upper cover shell and the box body; the opening part is used to flip the upper cover shell upwards.

[0007] Specifically, the opening part includes a box plate, which is vertically arranged at the upper end of the box; a cover plate, which is vertically arranged at the side wall of the upper cover; a vertical groove, which is arranged on the box plate; an arc groove, which is arranged on the box plate, the lower end of the arc groove is connected to the middle of the vertical groove, and the center of the arc groove is located at the upper end of the vertical groove; a sliding column, which has two sliding columns arranged longitudinally and are respectively arranged on the cover plate; wherein the sliding column located above is slidably connected to the vertical groove, and the sliding column located below can be selectively slidably connected to the vertical groove or the arc groove; the radius of the arc groove is equal to the distance between the two sliding columns.

[0008] A plurality of locking screws are provided between the upper cover shell and the upper end of the box body for achieving the communication and sealing of the air path. At this time, the two sliding columns are respectively located in the vertical grooves, and the sliding column located below is located at the lower end of the vertical groove.

[0009] During the process of opening the upper cover, the two sliding posts slide upward along the vertical groove, and the upper cover moves horizontally upward; then, the sliding post located above slides to the upper end of the vertical groove, and the sliding post located below slides into the arc groove and slides along the arc groove, and the upper cover is opened.

[0010] Furthermore, the opening cover portion includes a handle, which is rotatably connected to the box plate; a connecting rod, which has two connecting rods, and one end of the two connecting rods is rotatably connected; wherein, the other ends of the two connecting rods, one is rotatably connected to the sliding column located below, and the other is arranged on the rotating shaft of the handle.

[0011] Preferably, the rotation axis of the handle is located directly below the upper end of the arc groove and flush with the lower end of the vertical groove; when the connection point of the two connecting rods is located on the side of the arc groove away from the vertical groove, the handle abuts against the upper end of the box body.

[0012] At this time, the upper cover is completely flipped open until it no longer blocks the filter, and the connecting rod cannot rotate due to the limit of the handle, so that the position of the upper cover is locked and cannot be rotated toward the filter, making it easier to operate the filter; the upper cover is in an approximately vertical state after opening; the transition of the upper cover to flip backward will cause squeezing of the hose.

[0013] Furthermore, there is a gap between the upper cover and the box body; the gap is smaller than the height of the filter; and the upper cover is pressed tightly against the upper end of the filter.

[0014] Furthermore, two opening and closing doors are provided at the front end of the drying chamber; a material placement rack is slidably connected to the bottom end of the drying chamber along the front-to-back direction; optical axes are respectively provided on the left and right sides of the bottom end of the drying chamber; two sliders are slidably connected to the optical axis; the sliders are provided at the rear of the material placement rack.

[0015] Specifically, two spaced-apart side bars are respectively provided on the left and right sides of the material placement rack; a gable plate is provided on the slider; two grooves are provided on the upper end of the gable plate; and the side bars are located in the grooves.

[0016] Furthermore, at least one air outlet pipe is provided at the bottom end of the drying chamber; a drain port communicating with the outside is provided at the lower end of the air outlet pipe; and a first communicating pipe communicating with the high-pressure blower is provided on the side wall of the air outlet pipe.

[0017] Furthermore, a main power cabinet is provided at the rear end of the box; a control cabinet is provided near the upper end of the side wall of the box; and casters are provided near the four corners of the lower end of the box.

[0018] Furthermore, an infrared heating tube group is provided at the top of the drying chamber; the infrared heating tube group includes two wire trough boxes arranged parallel to the side walls of the drying chamber and a plurality of heating tubes clamped between the two wire trough boxes.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. The filter is set at the upper end of the box, and the upper cover is buckled on the upper end of the filter. The upper cover can be opened by flipping it over to fully expose the filter, which is convenient for inspection and maintenance of the filter, as well as for disassembly and assembly of the filter. The operation is simple and convenient.

[0021] 2. When opening the upper cover, first move it upward and then flip it backward, which can ensure the connection and sealing effect between the upper cover and the filter when they are fastened together. At the same time, the setting of the handle makes it easy to open the upper cover while maintaining the open position of the upper cover, so that it does not block the filter and does not squeeze the hose.

[0022] 3. A drain port is provided at the lower end of the drying chamber to facilitate the discharge of moisture in the drying chamber. A material placement rack is also provided, which slides in and out of the drying chamber to facilitate the placement of dried materials. The material placement rack adopts a double-side rod structure on both sides, which has higher structural strength and greater bearing capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the appearance structure of the utility model;

[0024] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0025] Figure 3 This is a structural diagram of the material placement rack of the present utility model;

[0026] Figure 4 This is an exploded structural diagram of the cover opening portion of the present invention;

[0027] Figure 5 This is a partial enlarged view of the upper cover of the utility model buckled on the upper end of the filter;

[0028] Figure 6 This is a partial enlarged view of the upper cover of the utility model when it is completely opened.

[0029] In the figure: 11. Box body; 12. Opening and closing door; 121. Observation window; 13. Control cabinet; 14. Main power cabinet; 15. Air outlet duct; 151. Drain outlet; 152. First connecting pipe; 16. Grille hole; 17. Drying chamber; 18. Casters; 21. Material placement rack; 211. Side rod; 22. Optical axis; 23. Slider; 231. Mountain-shaped plate; 3. Upper cover; 31. Second connecting pipe; 4. Filter; 5. Infrared heating tube group; 6. Opening cover; 61. Box plate; 611. Vertical groove; 612. Arc groove; 62. Cover plate; 621. Sliding column; 63. Connecting rod; 64. Handle. DETAILED DESCRIPTION

[0030] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0031] In the description of the present invention, it should be noted that directional words, such as the terms "center", "horizontal", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and so on, indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific scope of protection of the present invention.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Therefore, the terms "first" and "second" may explicitly or implicitly refer to one or more of these features. In the description of this utility model, "several" means two or more, unless otherwise specifically defined.

[0033] In this utility model, unless otherwise specified or limited, terms such as "disposed" and "installed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection; direct connection, connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0034] See also Figures 1-6 A dust-free clean oven includes a housing 11, wherein a drying chamber 17 is disposed within the housing 11; a grille hole 16 disposed at the upper end of the housing 11 and communicating with the top of the drying chamber 17; a filter 4 disposed above the grille hole 16; an upper housing 3 disposed above the filter 4; and an infrared heating tube assembly 5 disposed at the top end of the drying chamber 17. The filter 4 is a composite structure that allows airflow only in the longitudinal direction; and a shell is disposed on the side of the filter 4.

[0035] Two air outlet pipes 15 are provided at the bottom end of the drying chamber 17; a drain outlet 151 connected to the outside is provided at the lower end of each air outlet pipe 15; a first connecting pipe 152 extending backward is horizontally provided on the side wall of the air outlet pipe 15; two second connecting pipes 31 are horizontally provided at the rear part of the upper cover shell 3; a high-pressure fan is provided in the box body 11; the air inlet of the high-pressure fan is connected to the first connecting pipe 152; a hose is provided between the air outlet of the high-pressure fan and the second connecting pipe 31; the high-pressure gas in the upper cover shell 3 passes through the filter 4 and enters the drying chamber 17.

[0036] There is a gap between the upper cover shell 3 and the box body 11; the gap is smaller than the height of the filter 4; the box body 11 and the upper cover shell 3 are respectively provided with an extension frame on the side facing the filter 4; the inner wall of the extension frame is against the side wall of the filter 4; the upper cover shell 3 is pressed against the upper end of the filter 4; a plurality of locking screws are provided between the upper cover shell 3 and the upper end of the box body 11; two opening parts 6 are symmetrically provided between the upper cover shell 3 and the box body 11; the two opening parts 6 are respectively located on the left and right sides of the box body 11.

[0037] The opening portion 6 includes a box plate 61, which is vertically arranged at the upper end of the box body 11; a cover plate 62, which is vertically arranged on the side wall of the upper cover shell 3; a vertical groove 611, which is arranged on the box plate 61; an arc groove 612, which is arranged on the box plate 61, the lower end of the arc groove 612 is connected to the middle of the vertical groove 611, and the center of the arc groove 612 is located at the upper end of the vertical groove 611; a sliding column 621, which has two sliding columns 621 arranged longitudinally and are respectively arranged on the cover plate 62; wherein the sliding column 621 located above is slidably connected to the vertical groove 611, and the sliding column 621 located below can be selectively slidably connected to the vertical groove 611 or the arc groove 612; the radius of the arc groove 612 is equal to the distance between the two sliding columns 621.

[0038] The opening cover portion 6 includes a handle 64, which is rotatably connected to the box plate 61; a connecting rod 63, which has two connecting rods 63, and one end of the two connecting rods 63 is rotatably connected; wherein, the other ends of the two connecting rods 63, one is rotatably connected to the sliding column 621 located below, and the other is set on the rotation axis of the handle 64; the rotation axis of the handle 64 is located directly below the upper end of the arc groove 612 and is flush with the lower end of the vertical groove 611; when the connection point of the two connecting rods 63 is located on the side of the arc groove 612 away from the vertical groove 611, the handle 64 is against the upper end of the box body 11.

[0039] The bottom end of the drying chamber 17 is slidably connected to a material placement rack 21 along the front-to-back direction; an optical axis 22 is respectively provided on the left and right sides of the bottom end of the drying chamber 17; two sliders 23 are slidably connected to the optical axis 22; the slider 23 is provided at the rear of the material placement rack 21; two spaced-apart side rods 211 are respectively provided on the left and right sides of the material placement rack 21; a mountain-shaped plate 231 is provided on the slider 23; two grooves are provided on the upper end of the mountain-shaped plate 231; the side rods 211 are located in the grooves.

[0040] Two opening and closing doors 12 are symmetrically provided at the front end of the drying chamber 17; an observation window 121 is provided on the opening and closing doors 12; glass is provided in the observation window 121; a main power cabinet 14 is provided at the rear end of the box body 11; a control cabinet 13 is provided on the side wall of the box body 11 near the upper end; casters 18 are provided at the lower end of the box body 11 near the four corners.

[0041] The infrared heating tube group 5 includes two wire slot boxes arranged in parallel on the side walls of the drying chamber 17 and a plurality of heating tubes clamped between the two wire slot boxes.

[0042] See also Figure 5 The sliding column 621 located below abuts against the lower end of the vertical slot 611, and the upper cover shell 3 is buckled on the upper end of the filter 4; the upper end of the filter 4 is connected to the upper cover shell 3, and the lower end is connected to the drying chamber 17.

[0043] See also Figure 6 After removing the locking screws between the upper housing 3 and the housing 11, turn the handle 64, which in turn rotates the adjacent connecting rod 63, causing the other connecting rod 63 to drive the lower sliding post 621 to slide upward along the vertical slot 611. At this time, the upper housing 3 moves horizontally upward, and the extension frame leaves the filter 4. When the upper sliding post 621 slides to abut the upper end of the vertical slot 611, the extension frame no longer contacts the filter 4. Continuing to rotate the handle 64 will cause the lower sliding post 621 to enter the arcuate slot 612 and slide along the arcuate slot 612, and the upper housing 3 will rotate backward.

[0044] When both sliding posts 621 are rotated to a vertical position, the upper housing 3 completes a 90-degree flip, assuming a vertical position. The handle 64 is then rotated further until it contacts the upper end of the housing 11. The pivot points of the two connecting rods 63 are located on the side of the arcuate groove 612 away from the vertical groove 611. The force of gravity on the upper housing 3 causes it to rotate toward the filter 4. This means the pivot points of the two connecting rods 63 continue to move away from the vertical groove 611. However, the handle 64 contacts the upper end of the housing 11, preventing rotation and thus maintaining the position of the upper housing 3. The filter 4 can then be operated accordingly.

[0045] After the operation is completed, the handle 64 is rotated in the opposite direction to return the upper cover 3 to its original position and the locking screw is reinstalled.

[0046] The above description is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any changes or modifications made by any technician in this field within the scope of the present invention are included in the patent scope of the present invention.

Claims

1. A dust-free clean oven, characterized by: Including A box body, wherein a drying chamber is provided in the box body; A grille hole is provided at the upper end of the box body and is in communication with the top of the drying chamber; A filter, the filter being arranged at an upper end of the grille hole; an upper cover shell, the upper cover shell being arranged at the upper end of the filter; a high-pressure fan, the high-pressure fan being arranged in the box, the air inlet of the high-pressure fan being communicated with the lower end of the drying chamber, and the air outlet being communicated with the upper cover shell; Among them, the filter is used to filter the gas in the upper cover shell and then enter the drying chamber; a hose is provided between the upper cover shell and the high-pressure blower; two opening parts are symmetrically provided between the upper cover shell and the box body; the opening parts are used to flip the upper cover shell upwards.

2. The oven according to claim 1, wherein: The opening portion includes A box plate, the box plate being vertically arranged at the upper end of the box; A cover plate, the cover plate being vertically arranged on the side wall of the upper cover; A vertical groove, the vertical groove is provided on the box plate; An arc-shaped groove, the arc-shaped groove is provided on the box plate, the lower end of the arc-shaped groove is connected to the middle of the vertical groove, and the center of the arc-shaped groove is located at the upper end of the vertical groove; Two sliding posts are arranged longitudinally and are respectively provided on the cover plate; The sliding column located above is slidably connected to the vertical groove, and the sliding column located below can be selectively slidably connected to the vertical groove or the arc groove; the radius of the arc groove is equal to the distance between the two sliding columns.

3. The oven according to claim 2, wherein: The opening portion includes a handle, the handle being rotatably connected to the box plate; Connecting rods, wherein there are two connecting rods, and one end of the two connecting rods is rotatably connected; Among them, the other ends of the two connecting rods, one is rotatably connected to the sliding column located below, and the other is set on the rotating shaft of the handle.

4. The oven according to claim 3, wherein: The rotating shaft of the handle is located directly below the upper end of the arc groove and flush with the lower end of the vertical groove; when the connection point of the two connecting rods is located on the side of the arc groove away from the vertical groove, the handle abuts against the upper end of the box body.

5. The oven according to any one of claims 1 to 4, characterized in that: There is a gap between the upper cover and the box body; the gap is smaller than the height of the filter; and the upper cover is pressed tightly against the upper end of the filter.

6. The oven according to any one of claims 1 to 4, characterized in that: Two opening and closing doors are provided at the front end of the drying chamber; a material placement rack is slidably connected to the bottom end of the drying chamber along the front-to-back direction; optical axes are respectively provided on the left and right sides of the bottom end of the drying chamber; two sliders are slidably connected to the optical axis; the sliders are provided at the rear of the material placement rack.

7. The oven according to claim 6, wherein: Two spaced-apart side bars are respectively provided on the left and right sides of the material placement rack; a gable plate is provided on the sliding block; two grooves are provided on the upper end of the gable plate; and the side bars are located in the grooves.

8. The oven according to any one of claims 1 to 4, characterized in that: At least one air outlet pipe is provided at the bottom end of the drying chamber; a drain port communicating with the outside is provided at the lower end of the air outlet pipe; and a first communicating pipe communicating with the high-pressure blower is provided on the side wall of the air outlet pipe.

9. The oven according to any one of claims 1 to 4, characterized in that: A main power cabinet is provided at the rear end of the box; a control cabinet is provided near the upper end of the side wall of the box; and casters are provided near the four corners of the lower end of the box.

10. The oven according to any one of claims 1 to 4, characterized in that: An infrared heating tube group is arranged at the top of the drying chamber; the infrared heating tube group comprises two wire slot boxes arranged in parallel on the side walls of the drying chamber and a plurality of heating tubes clamped between the two wire slot boxes.

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