Bending door for multi-layer tunnel furnace

Abstract

The utility model relates to a bending door for a multi-layer tunnel furnace, and belongs to the technical field of food processing equipment. The bending door for the multi-layer tunnel furnace comprises an upper door body, a lower door body, a hydraulic rod and a supporting assembly, the first end of the upper door body is hinged to the side wall of the multi-layer tunnel furnace, the second end of the upper door body is hinged to the lower door body, mounting lugs are hinged to the two ends of the hydraulic rod, and the mounting lugs are connected with the multi-layer tunnel furnace and the upper door body correspondingly; the supporting assembly is hinged to the multi-layer tunnel furnace and the lower door body. According to the scheme provided by the utility model, daily cleaning, emergency maintenance and regular overhaul work of the multi-layer tunnel furnace can be realized through the bending door.

Description

Technical Field

[0001] The utility model relates to the technical field of food processing equipment, in particular to a bending door for a multi-layer tunnel furnace. Background Art

[0002] In the prior art, multi-layer tunnel ovens for baking food are prone to oil and carbon accumulation after a period of use. When cleaning a multi-layer tunnel oven, the large number of internal components and the compact layout result in low cleaning efficiency, posing a certain food safety hazard. Furthermore, due to the effects of high temperature and humidity, as well as oil and carbon accumulation, the transmission friction of the transmission system increases, causing the baking tray to shake or overturn during transmission, resulting in the multi-layer tunnel oven becoming stuck or shutting down. However, existing multi-layer tunnel ovens are sealed structures, requiring the removal of the oven's outer shell for emergency maintenance, which is time-consuming and labor-intensive. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a folding door for a multi-layer tunnel furnace, which has the characteristics of occupying less space, having a simple structure, and being safe and convenient to operate.

[0004] The utility model provides a folding door for a multi-layer tunnel furnace, comprising an upper door body, a lower door body, a hydraulic rod and a support assembly, wherein the first end of the upper door body is hinged to the side wall of the multi-layer tunnel furnace, and the second end is hinged to the lower door body, the two ends of the hydraulic rod are hinged with mounting ears, the mounting ears are respectively connected to the multi-layer tunnel furnace and the upper door body, and the support assembly is respectively hinged to the multi-layer tunnel furnace and the lower door body.

[0005] In some embodiments, the support assembly includes an upper support plate, a support rod and a lower support plate, the upper support plate is connected to the multi-layer tunnel furnace, the lower support plate is connected to the lower door body, and the two ends of the support rod are hinged to the upper support plate and the lower support plate respectively.

[0006] In some embodiments, the upper door body is hinged to the multi-layer tunnel furnace and the lower door body respectively through a plurality of damping hinges.

[0007] In some embodiments, a control mechanism is further included, wherein the control mechanism is connected to the hydraulic rod so that the hydraulic rod drives the upper door body to rotate under the control of the control mechanism.

[0008] In some embodiments, glass observation windows are provided on both the upper door body and the lower door body.

[0009] In some embodiments, the upper door body, the lower door body and the support rod are all made of stainless steel plate material.

[0010] In some embodiments, a silicone rubber buffer pad is provided on one side wall of the upper door body and the lower door body facing the multi-layer tunnel furnace.

[0011] In some embodiments, the size of the upper door body is equal to the size of the lower door body.

[0012] The technical solution provided by the utility model may have the following beneficial effects:

[0013] The utility model provides a folding door for a multi-layer tunnel furnace, which is installed on the side of the multi-layer tunnel furnace. The upper door body is rotated and opened by a hydraulic rod. During the process of opening the upper door body, the lower door body rotates relative to the upper door body and achieves self-locking and static balance under the action of the support assembly. The side walls of the multi-layer tunnel furnace are designed as an upper door body and a lower door body. When closed, the multi-layer tunnel furnace can be sealed. After opening, the side of the multi-layer tunnel furnace can be completely open, facilitating cleaning, maintenance, and inspection work for operators. In addition, the opening and closing is achieved by flipping upward, and the width occupied by the folding door is only half the height of the multi-layer tunnel furnace, which is convenient for personnel to walk. When the multi-layer tunnel furnace with this folding door is used in combination with other equipment in a factory building, the spatial layout is more compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0015] Figure 1 This is a schematic structural diagram of a folding door for a multi-layer tunnel furnace according to an embodiment of the present utility model;

[0016] Figure 2 1 is a side view of a folding door for a multi-layer tunnel furnace shown in an embodiment of the present utility model;

[0017] Figure 3 This is a diagram showing the usage status of a folding door for a multi-layer tunnel furnace according to an embodiment of the present utility model.

[0018] Reference numerals:

[0019] 1. Upper door body; 2. Lower door body; 3. Hydraulic rod; 4. Support assembly; 5. Mounting ears; 6. Upper support plate; 7. Support rod; 8. Lower support plate; 9. Multi-layer tunnel furnace. DETAILED DESCRIPTION

[0020] The following describes preferred embodiments of the present invention in more detail with reference to the accompanying drawings. Although preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0021] In the description of the utility model, it should be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "center", "end", "length", "outer end", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the utility model.

[0022] In addition, in the description of the present invention, “a plurality of” means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0023] Terms such as "upper," "above," "lower," and "below" used in this disclosure to indicate relative spatial positions are used for ease of description to describe the relationship of one unit or feature relative to another unit or feature as shown in the accompanying drawings. Terms indicating relative spatial positions may be intended to encompass different orientations of the device during use or operation other than the orientation shown in the drawings. For example, if the device in the drawings is turned over, a unit described as being "below" or "beneath" another unit or feature would be "above" the other unit or feature. Thus, the exemplary term "below" encompasses both above and below. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially related descriptors used herein should be interpreted accordingly. In this disclosure, unless otherwise expressly specified or limited, terms such as "disposed," "sleeved," "connected," "through," and "plugged" should be understood broadly, for example, to mean a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; and internal communication between two elements or an interaction between two elements, unless otherwise expressly limited. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0024] The technical solutions of the embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0025] like Figures 1 to 3As shown, the utility model provides a folding door for a multi-layer tunnel furnace, comprising an upper door body 1, a lower door body 2, a hydraulic rod 3 and a support assembly 4. The first end of the upper door body 1 is hinged to the side wall of the multi-layer tunnel furnace 9, and the second end is hinged to the lower door body 2. The two ends of the hydraulic rod 3 are hinged with mounting ears 5, and the mounting ears 5 are respectively connected to the multi-layer tunnel furnace 9 and the upper door body 1. The support assembly 4 is respectively hinged to the multi-layer tunnel furnace 9 and the lower door body 2.

[0026] The multi-layer tunnel furnace 9 is generally a rectangular structure with two end faces, a top face, a bottom face and two side faces. The frame constitutes the main skeleton of the multi-layer tunnel furnace 9. The top face, bottom face and side faces are formed by splicing and welding stainless steel plates, thereby forming the shell structure of the multi-layer tunnel furnace 9. The two end faces of the multi-layer tunnel furnace 9 are respectively the feed port and the discharge port. A sprocket transmission mechanism with an S-shaped distribution is provided inside. Several baking trays circulate and rotate on the sprocket transmission mechanism to complete the baking of the ingredients. The folding doors in this embodiment are installed on the two sides of the multi-layer tunnel furnace 9 to replace the original shell structure. In the specific implementation, the required number of folding doors can be freely set according to the length of the multi-layer tunnel furnace 9 and the width of the folding door, which is not the only limitation here.

[0027] In some embodiments, hydraulic rods 3 are provided on both sides of the upper door body 1 along the length of the multi-layer tunnel furnace 9. Correspondingly, support components 4 are also provided on both sides of the lower door body 2. Under the action of the two hydraulic rods 3 and the two groups of support components 4, the stability and reliability of the bending door can be improved.

[0028] During routine cleaning, emergency repairs, and regular maintenance, upper door 1 rotates open under the push of hydraulic rod 3, and lower door 2 rotates with it, remaining suspended relative to the ground. As upper and lower door bodies 1 and 2 rotate, support assembly 4 follows. Under the weight of lower door 2, lower door 2 self-locks and reaches a static equilibrium, creating a space on the side of multi-layer tunnel furnace 9 where personnel can freely move their rods. Upper door 1 flips upward to open, fully exposing the side of multi-layer tunnel furnace 9 and facilitating cleaning, maintenance, and repair work within the furnace.

[0029] Furthermore, the support assembly 4 includes an upper support plate 6, a support rod 7, and a lower support plate 8. The upper support plate 6 is connected to the multi-layer tunnel furnace 9, and the lower support plate 8 is connected to the lower door body 2. The ends of the support rod 7 are respectively hinged to the upper support plate 6 and the lower support plate 8. The upper support plate 6 is installed on the top side of the multi-layer tunnel furnace 9 frame. The upper support plate 6 is set at a position close to the upper door body 1 of the lower door body 2 to increase the suspension height of the support rod 7 to avoid affecting the movement of people.

[0030] Furthermore, the upper door body 1 is hinged to the multi-layer tunnel furnace 9 and the lower door body 2 through a plurality of damping hinges.

[0031] Furthermore, the above includes a control mechanism, which is connected to the hydraulic rod 3 so that the hydraulic rod 3 drives the upper door body 1 to rotate under the control of the control mechanism.

[0032] Furthermore, glass observation windows are provided on the upper door body 1 and the lower door body 2. Optionally, lighting fixtures can be provided on the side of the upper door body 1 and the lower door body 2 facing the multi-layer tunnel furnace 9 to facilitate real-time observation of the operation of the equipment.

[0033] Furthermore, the upper door body 1, lower door body 2 and support rod 7 are all made of stainless steel plate material. Optionally, a sound-absorbing structure can also be provided on the outer side of the stainless steel plate to reduce the noise emitted by the internal transmission system of the multi-layer tunnel furnace 9, thereby reducing the noise level of the factory building.

[0034] Furthermore, a silicone rubber buffer pad is provided on the side wall of the upper door body 1 and the lower door body 2 facing the multi-layer tunnel furnace 9. By providing the silicone rubber buffer pad, the hard impact between the upper door body 1, the lower door body 2 and the multi-layer tunnel furnace 9 can be reduced, thereby reducing the noise level.

[0035] Furthermore, the size of the above-mentioned upper door body 1 is equal to that of the lower door body 2. In this embodiment, the total height of the multi-layer tunnel furnace 9 is close to 3 meters, the shell height on both sides of the multi-layer tunnel furnace 9 is about 2.4 meters, and the total height of the bending door is 2.2 meters. Therefore, when the upper door body 1 is fully opened and closed (the upper door body 1 is parallel to the horizontal plane), 1.1 meters of space is required for rotation and opening and closing. It can be seen that when the upper door body 1 and the lower door body 2 are equal in size, when the multi-layer tunnel furnace 9 is arranged in the factory building, the aisles on both sides can be set to 1.1 meters to 1.2 meters. Under this setting, when the multi-layer tunnel furnace 9 is combined with other equipment, the spatial layout is more compact.

[0036] While various embodiments of the present invention have been described above, the above descriptions are illustrative and non-exhaustive, and are not intended to be limiting of the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or improvements to existing technologies, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A folding door for a multi-layer tunnel furnace, characterized in that: It includes an upper door body, a lower door body, a hydraulic rod and a support assembly. The first end of the upper door body is hinged to the side wall of the multi-layer tunnel furnace, and the second end is hinged to the lower door body. The two ends of the hydraulic rod are hinged with mounting ears, and the mounting ears are respectively connected to the multi-layer tunnel furnace and the upper door body. The support assembly is respectively hinged to the multi-layer tunnel furnace and the lower door body.

2. The folding door for a multi-layer tunnel furnace according to claim 1, characterized in that: The support assembly includes an upper support plate, a support rod and a lower support plate. The upper support plate is connected to the multi-layer tunnel furnace, the lower support plate is connected to the lower door body, and both ends of the support rod are hinged to the upper support plate and the lower support plate respectively.

3. The folding door for a multi-layer tunnel furnace according to claim 2, characterized in that: The upper door body is hinged to the multi-layer tunnel furnace and the lower door body respectively through a plurality of damping hinges.

4. The folding door for a multi-layer tunnel furnace according to claim 3, characterized in that: The utility model further comprises a control mechanism, wherein the control mechanism is connected to the hydraulic rod so that the hydraulic rod drives the upper door body to rotate under the control of the control mechanism.

5. The folding door for a multi-layer tunnel furnace according to claim 4, characterized in that: Glass observation windows are provided on the upper door body and the lower door body.

6. The folding door for a multi-layer tunnel furnace according to claim 5, characterized in that: The upper door body, the lower door body and the support rod are all made of stainless steel plate material.

7. The folding door for a multi-layer tunnel furnace according to claim 6, characterized in that: A silicone rubber buffer pad is provided on one side wall of the upper door body and the lower door body facing the multi-layer tunnel furnace.

8. The folding door for a multi-layer tunnel furnace according to claim 7, characterized in that: The size of the upper door body is equal to that of the lower door body.

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