CN218978666U

CN218978666U - Flat plate furnace

Info

Publication number: CN218978666U
Application number: CN202223213756.3U
Authority: CN
Inventors: 卢宇轩; 谢谊; 任健聪
Original assignee: Guangdong Wanhe Thermal Energy Technology Co Ltd
Current assignee: Guangdong Wanhe Thermal Energy Technology Co Ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-05-09
Anticipated expiration: 2032-11-30

Abstract

The utility model belongs to the technical field of barbecue equipment, and discloses a flat plate furnace which comprises a furnace body, a baking tray and a furnace cover, wherein the baking tray is arranged above the furnace body; the furnace cover is rotationally connected with the furnace body through a connecting rod assembly; the connecting rod assemblies are arranged at two sides of the baking tray symmetrically, and when the furnace cover is in an open state, a horizontal distance L1 greater than zero is arranged between the bottom end of the furnace cover and the back plate of the furnace body. According to the utility model, the furnace cover is rotatably connected to the furnace body, so that the problem of connection looseness of the baking tray and the furnace cover is effectively solved, and the connection reliability and stability of the furnace cover are improved; the horizontal distance L1 is reserved between the furnace cover and the back plate of the furnace body after the furnace cover is opened, so that the problem that collision damage is easy to occur between the furnace cover and the furnace body and between the furnace cover and the baking tray is avoided.

Description

Flat plate furnace

Technical Field

The utility model relates to the technical field of barbecue equipment, in particular to a flat plate furnace.

Background

The flat plate furnace comprises a furnace body and a baking tray, wherein the baking tray is welded with the furnace body or detachably connected with the furnace body. Because the baking tray is a metal flat plate, the using area is large, and a furnace cover is usually rarely provided. When the cover is needed, the cover separated from the furnace body can be used for temporary cover. In order to solve the problem that the furnace cover and the furnace body are separated to cause inconvenient taking, placing and transportation, in the prior art, a plurality of flat plate furnaces are provided with the furnace covers which are connected in a rotating way, after long-time use, the rotating connection parts of the furnace covers are easy to loosen and the furnace covers are unstable after being opened; after the furnace cover is turned over and opened, the furnace cover needs to be stopped against one side of the baking tray or the furnace body to limit, so that contact abrasion or damage is easy to cause, and the service life is influenced.

Disclosure of Invention

The utility model solves the technical problem of providing a flat plate furnace, which can effectively solve the problem of loose connection between a baking tray and a furnace cover and the problem of easy collision and damage between the furnace cover and the baking tray.

The technical problems are solved by the following technical scheme:

the flat plate furnace comprises a furnace body and a baking tray, wherein the baking tray is arranged above the furnace body; the flat plate furnace further comprises a furnace cover, and the furnace cover is rotationally connected to the furnace body through a connecting rod assembly; the two connecting rod assemblies are arranged on two sides of the baking tray respectively, and when the furnace cover is in an open state, a horizontal distance L1 greater than zero is arranged between the bottom end of the furnace cover and the back plate of the furnace body.

Compared with the background technology, the flat plate furnace has the following beneficial effects:

according to the flat plate furnace, the furnace cover is rotatably connected to the furnace body, so that the reliability and stability of the connection of the furnace cover are improved, and the problem of looseness caused by the connection of the furnace cover and the baking tray in the prior art is effectively solved. The distance L1 is reserved between the oven cover and the back plate of the oven body after the oven cover is opened, so that the problem that collision damage is easy to occur between the oven cover and the oven body and between the oven cover and the baking tray is avoided, and the service lives of the baking tray and the oven cover are prolonged.

In one embodiment, each of the link assemblies includes:

the two ends of the first connecting rod are respectively hinged to the furnace cover and the furnace body;

one end of the second connecting rod is hinged with the furnace body, the second connecting rod is provided with a sliding groove along the length direction of the second connecting rod, and when the furnace cover is in an open state, the second connecting rod is positioned above the first connecting rod;

the one end of the third connecting rod is hinged with the furnace cover, one end of the third connecting rod deviating from the furnace cover is connected in the chute in a sliding mode, and the second connecting rod and the third connecting rod form a telescopic rod to adjust the opening and closing angles of the furnace cover.

In one embodiment, the first connecting rod is hinged to the furnace body at a hinge point A, the distance between the hinge point A and the back plate of the furnace body is smaller than the length of the first connecting rod, and when the furnace cover is in an open state, the first connecting rod is stopped against the furnace body.

In one embodiment, the length of the second connecting rod is greater than that of the first connecting rod, the second connecting rod is hinged to the furnace body at a hinge point B, the hinge point A, the hinge point B, the first connecting rod and the second connecting rod are located in the same vertical plane, and the hinge point B is arranged far away from the direction of the backboard relative to the hinge point A.

In one embodiment, the linkage assembly further includes a locking member configured to lock the third link within the chute.

In one embodiment, the bottom of the chute is provided with a plurality of first holes, the third connecting rod is provided with a second hole, and the locking piece can be arranged in the second hole and any one of the first holes in a penetrating way so as to lock the second connecting rod and the third connecting rod.

In one embodiment, the locking member is of a pin structure, the locking member comprises a head, a pin rod and an elastic protrusion, the elastic protrusion is circumferentially arranged around the pin rod, and when the locking member penetrates through the first hole and the second hole, the elastic protrusion can be stopped against one side, away from the head, of the second connecting rod or the third connecting rod.

In one embodiment, the connecting rod assembly further comprises two first hinging seats and two second hinging seats, the two first hinging seats are L-shaped, one ends of the two hinging seats are detachably connected with the furnace body respectively, and the other ends of the two hinging seats are hinged with the first connecting rod and the second connecting rod respectively; the two second hinging seats are fixedly arranged on the furnace cover, and the first connecting rod and the third connecting rod are respectively hinged with the two second hinging seats.

In one embodiment, the two second hinge seats are arranged in the middle of the furnace cover along the side wall direction and are respectively positioned at two sides of the center of the side wall.

In one embodiment, a plane is formed on one side, connected with the connecting rod assembly, of the furnace cover, the baking tray is provided with a surrounding baffle, one end, deviating from the baking tray, of the surrounding baffle is inclined relative to the baking tray, and the plane of the furnace cover can be covered on the inclined plane to cover the baking tray.

Drawings

FIG. 1 is a schematic view of the overall structure of a flat plate furnace according to the present utility model;

FIG. 2 is a schematic view showing an exploded structure of the flat panel furnace of the present utility model;

FIG. 3 is a schematic diagram showing the connection of the second connecting rod and the third connection in the flat panel furnace according to the present utility model;

fig. 4 is a schematic structural view of a locking member in a flat panel furnace according to the present utility model.

Description of the reference numerals:

1. a furnace body; 11. a back plate;

2. a baking tray; 21. a front plate; 22. a rear plate; 23. a side plate;

3. a furnace cover; 4. a first link; 5. a second link; 51. a chute; 52. a first hole; 6. a third link; 61. a second hole; 7. a locking member; 71. a head; 72. a pin rod; 73. an elastic protrusion; 8. a first hinge base; 9. and a second hinge base.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate an orientation or a positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

The embodiment provides a flat plate furnace, as shown in fig. 1-2, the flat plate furnace comprises a furnace body 1, a baking tray 2 and a furnace cover 3, wherein the baking tray 2 is arranged above the furnace body 1; the furnace cover 3 is rotationally connected with the furnace body 1 through a connecting rod assembly; the two connecting rod assemblies are arranged on two sides of the baking tray 2 respectively, and when the furnace cover 3 is in an open state, a horizontal distance L1 greater than zero is arranged between the bottom end of the furnace cover 3 and the back plate 11 of the furnace body 1.

Compared with the prior art that the furnace cover 3 is rotationally connected with the baking tray 2, the flat plate furnace improves the reliability and stability of the connection of the furnace cover 3 by rotationally connecting the furnace cover 3 with the furnace body 1, effectively solves the loosening problem caused by the connection of the furnace cover 3 with the baking tray 2 in the prior art, is beneficial to protecting the baking tray 2 and prolongs the service life of the baking tray 2. Through setting up lid 3 open back have horizontal distance L1 with the backplate 11 of furnace body 1, avoided between lid 3 and the furnace body 1 and easily take place the problem of collision damage between lid 3 and the overware 2, prolonged the life of overware 2 and lid 3. As shown in FIG. 1, the furnace cover 3 is rotatably connected to the furnace body 1 through the connecting rod assembly, so that the rotating angle of the furnace cover 3 can be controlled by setting the length and the rotating angle of the connecting rod assembly, so that the bottom end of the furnace cover 3 does not have the back plate 11 or the baking tray 2 to be propped against, and the collision damage is effectively avoided. In the prior art, as the furnace cover 3 is rotationally connected with the baking tray 2, the furnace cover 3 is rotationally opened and then is abutted against the furnace body 1 or the baking tray 2 through the bottom end to realize the rotation stop limit, so that the damage caused by collision is easy.

In one embodiment, each connecting rod assembly comprises a first connecting rod 4, a second connecting rod 5 and a third connecting rod 6, and two ends of the first connecting rod 4 are respectively hinged to the furnace cover 3 and the furnace body 1; one end of the second connecting rod 5 is hinged with the furnace body 1, the second connecting rod 5 is provided with a sliding groove 51 along the length direction of the second connecting rod 5, and when the furnace cover 3 is in an open state, the second connecting rod 5 is positioned above the first connecting rod 4; one end of the third connecting rod 6 is hinged with the furnace cover 3, one end of the third connecting rod 6 deviating from the furnace cover 3 is slidably connected in the chute 51, and the second connecting rod 5 and the third connecting rod 6 form a telescopic rod to adjust the opening and closing angles of the furnace cover 3.

With reference to fig. 1 and 2, two link assemblies are symmetrically provided at both sides of the bakeware 2 to uniformly support the rotation of the furnace cover 3. The connecting rod assembly comprises the first connecting rod 4 and the second connecting rod 5, so that stable operation control on the rotation opening and closing of the furnace cover 3 can be realized, and the furnace cover 3 rotates more labor-saving and smoother relative to a single connecting rod structure. In this embodiment, the first link 5 and the first link 6 are slidably connected to form a telescopic link, it can be understood that the length of the first link 4 is fixed, and when the length of the telescopic link changes, the control range of the angle of opening and closing by rotation of the furnace cover 3 is increased, so that the baking tray 2 can be suitable for baking trays 2 with various structural forms when the furnace cover 3 is closed by rotation, and has wider application.

In one embodiment, the first connecting rod 4 is hinged to the furnace body 1 at a hinge point a, and the distance between the hinge point a and the back plate 11 of the furnace body 1 is smaller than the length of the first connecting rod 4, and when the furnace cover 3 is in an open state, the first connecting rod 4 is stopped against the furnace body 1.

As shown in fig. 1, which is in an open state of the furnace cover 3, in the prior art, the bottom end of the furnace cover 3 is abutted against the furnace body 1 or the baking tray 2 to realize the limit of opening in place by rotating, so that the furnace cover 3 and the furnace body 1 or the baking tray 2 can collide with each other, in order to avoid collision damage, in this embodiment, the length of the first connecting rod 4 is set, when the furnace cover 3 rotates to be opened, the first connecting rod 4 has an extension section exceeding the back plate 11, and the rotating gap or distance between the furnace cover 3 and the furnace body 1 is increased, so that the collision of the wall surface is facilitated. Meanwhile, since the second connecting rod 5 is arranged above the first connecting rod 4, the second connecting rod 5 has a limiting effect on the rotation angle of the furnace cover 3, so that the excessive rotation of the furnace cover 3 can be avoided, and the rotation position of the furnace cover 3 is further limited in a controllable angle range. Normally, as long as the length of the first connecting rod 4 is long enough, the contact between the furnace cover 3 and the furnace body 1 can be always limited, but in view of the design of strength, the contact between the furnace cover 3 and the furnace body 1 can be effectively avoided by pulling the upper part of the furnace cover 3 through the second connecting rod 5 so that the included angle between the furnace cover 3 and the first connecting rod 4 is smaller than 90 degrees after the furnace cover 3 rotates in place in the embodiment.

In one embodiment, the length of the second connecting rod 5 is greater than that of the first connecting rod 4, the second connecting rod 5 is hinged with the furnace body 1 at a hinge point B, and the hinge point a, the hinge point B, the first connecting rod 4 and the second connecting rod 5 are located in the same vertical plane, and the hinge point B is arranged in a direction away from the back plate 11 relative to the hinge point a.

As shown in fig. 1 and 2, the hinge point a and the hinge point B are disposed along the front-rear direction of the oven body 1, so that the first link 4 and the second link 5 can rotate in the same vertical plane, which is beneficial for the baking tray 2 to have a stable rotation plane. It can be understood that the positions of the hinge point B and the hinge point a are as close as possible, which is beneficial to saving the length of the second connecting rod 5, the third connecting rod 6 can be completely and slidably connected inside the chute 51 of the second connecting rod 5, and the furnace cover 3 is correspondingly controlled by the first connecting rod 4 and the second connecting rod 5 only. When the rotation angle of the furnace cover 3 is larger, the third connecting rod 6 extends out of the second connecting rod 5 to slide, and the function is to prolong the second connecting rod 5, so that the furnace cover 3 is suitable for sealing cover arrangement of the baking tray 2 with variable height and shape.

In one embodiment, the linkage assembly further comprises a locking member 7, the locking member 7 being capable of locking the third link 6 within the chute 51.

As shown in fig. 3 and 4, the third connecting rod 6 is slidably connected in the chute 51, and when the third connecting rod 6 slides out a distance outwards, the locking member 7 is provided to lock the third connecting rod 6 at a corresponding position, so as to ensure that the third connecting rod 6 does not shrink and slide relative to the second connecting rod 5, thereby being beneficial to controlling the furnace cover 3 within a controllable rotation range and preventing the furnace cover 3 from touching the furnace body 1 or the baking tray 2 after rotating. The locking member 7 includes, but is not limited to, a pin or a bolt, etc.

In one embodiment, the bottom of the chute 51 is provided with a plurality of first holes 52, the third link 6 is provided with a second hole 61, and the locking member 7 can be inserted into the second hole 61 and any one of the first holes 52 to lock the second link 5 and the third link 6.

As shown in fig. 3, the bottom of the chute 51 is provided with a plurality of first holes 52, the third connecting rod 6 is provided with at least one second hole 61, in other embodiments, a plurality of second holes 61 may be provided, the second holes 61 may be round holes or long slot holes, and the locking member 7 sequentially penetrates through the first holes 52 and the second holes 61, so as to lock the relative positions of the third connecting rod 6 and the second connecting rod 5, so as to obtain a telescopic rod with a determined length. In the present embodiment, the slide groove 51 is provided along the longitudinal direction of the second link 5, and the locking between the third link 6 and the second link 5 is not limited to the above hole connection, and may be a damper or a tooth transmission locking method.

In one embodiment, the locking member 7 is in a pin structure, the locking member 7 includes a head 71, a pin 72 and an elastic protrusion 73, the elastic protrusion 73 is circumferentially disposed around the pin 72, and when the locking member 7 is inserted through the first hole 52 and the second hole 61, the elastic protrusion 73 can be stopped against a side of the second link 5 or the third link 6 facing away from the head 71.

As shown in fig. 3 and 4, a step surface is formed between the head 71 of the locking member 7 and the pin 72, and the distance between the step surface and the elastic protrusion 73 is equal to the sum of the thicknesses of the third link 6 and the second link 5, so that when the pin 72 is inserted into the first hole 52 and the second hole 61, the head 71 and the elastic protrusion 73 can sandwich the second link 5 and the third link 6, thereby realizing positioning locking. Wherein the elastic protrusion 73 is a conventional elastic arrangement, and can be compressed when penetrating the first hole 52 and the second hole 61, and automatically spring up to be locked after penetrating. The number of resilient projections 73 is typically three and are evenly spaced around the circumference of the pin 72.

In one embodiment, the connecting rod assembly further comprises two first hinging seats 8 and two second hinging seats 9, wherein the two first hinging seats 8 are L-shaped, one ends of the two first hinging seats 8 are respectively detachably connected with the furnace body 1, and the other ends of the two first hinging seats are respectively hinged with the first connecting rod 4 and the second connecting rod 5; the two second hinging seats 9 are respectively fixedly arranged on the furnace cover 3, and the first connecting rod 4 and the third connecting rod 6 are respectively hinged with the two second hinging seats 9.

As shown in fig. 2, two first hinge bases 8 are detachably connected to two sides of the top of the furnace body 1, and are respectively used for hinging the first connecting rod 4 and the second connecting rod 5, the first hinge bases 8 are right-angle L-shaped plates, the outer side surface of one side plate is arranged and connected against the top surface of the furnace body 1, the other side plate is provided with a first through hole for penetrating the first hinge shaft to hinge the first connecting rod 4 or the second connecting rod 5, and the first connecting rod 4 or the second connecting rod 5 can rotate in a plane parallel to the side plate. The second articulated seat 9 is a bending piece in a shape like a Chinese character 'ji', one end of the second articulated seat 9 is fixedly welded on the furnace cover 3, a second through hole is formed in the protruding side of the second articulated seat 9 and used for penetrating through a second articulated shaft to rotationally connect the first connecting rod 4 and the third connecting rod 6, and the first connecting rod 4 and the third connecting rod 6 can rotate in a plane perpendicular to the furnace cover 3. Through the distance of two second articulated seat 9 and the flexible length of second connecting rod 5 and third connecting rod 6, can adjust the rotation angle of bell 3, make it have the safe rotation angle that is fit for furnace body 1 and overware 2, avoid colliding with the damage.

In one embodiment, two second hinge seats 9 are provided in the middle of the furnace cover 3 in the direction of the side wall and are respectively located at two sides of the center of the side wall of the furnace cover 3.

As shown in fig. 2, according to the position of the second hinge seat 9, the first connecting rod 4 and the third connecting rod 6 are respectively hinged to the two second hinge seats 9, when the furnace cover 3 is opened, as shown in fig. 1, at least part of the furnace cover 3 rotates to the rear of the furnace body 1 and the baking tray 2, so that the center of gravity is stabilized, and the stability of the furnace cover 3 is further improved.

In one embodiment, one side of the furnace cover 3 connected with the connecting rod assembly is a plane, the baking tray 2 is provided with a surrounding baffle, one end of the surrounding baffle, which is away from the baking tray 2, is an inclined plane relative to the baking tray 2, and the plane of the furnace cover 3 can be covered on the inclined plane to cover the baking tray 2.

As shown in fig. 2, four surrounding barriers are arranged around the baking tray 2, two sides of the baking tray are trapezoidal side plates 23, the height of the front plate 21 is lower than that of the rear plate 22, an inclined surface with low front and high rear is formed, and when the conventional baking tray 2 adopts such an inclined surface, it is difficult to cover and seal through the furnace cover 3. In this embodiment, the connecting rod assembly is arranged to rotate and connect the furnace cover 3 for the baking tray 2 with the inclined surface, so that when the furnace cover 3 is rotated to close the sealing, the length of the second connecting rod 5 and the length of the third connecting rod 6 are adjustable, and when the furnace cover 3 is rotated to close, the rotating angle can be larger, so that the furnace cover 3 can completely cover the end face of the enclosure of the baking tray 2, and good sealing cover arrangement is realized. It will be appreciated that when the inclination angle and the height of the end of the enclosure of the bakeware 2 are not limited, the adjustment can be realized by the lengths of the third connecting rod 6 and the second connecting rod 5, so that the bakeware 2 can be replaced conveniently.

In the specific content of the above embodiment, any combination of the technical features may be performed without contradiction, and for brevity of description, all possible combinations of the technical features are not described, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing detailed description of the embodiments presents only a few embodiments of the present utility model, which are described in some detail and are not intended to limit the scope of the present utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. The flat plate furnace comprises a furnace body (1) and a baking tray (2), wherein the baking tray (2) is arranged above the furnace body (1); the flat plate furnace is characterized by further comprising a furnace cover (3), wherein the furnace cover (3) is rotationally connected with the furnace body (1) through a connecting rod assembly; the two connecting rod assemblies are arranged on two sides of the baking tray (2), and when the furnace cover (3) is in an open state, a horizontal distance L1 greater than zero is arranged between the bottom end of the furnace cover (3) and the back plate (11) of the furnace body (1).

2. The flat panel furnace of claim 1, wherein each of the link assemblies comprises:

the two ends of the first connecting rod (4) are respectively hinged to the furnace cover (3) and the furnace body (1);

the second connecting rod (5), one end of the second connecting rod (5) is hinged with the furnace body (1), the second connecting rod (5) is provided with a sliding groove (51) along the length direction of the second connecting rod (5), and when the furnace cover (3) is in an open state, the second connecting rod (5) is positioned above the first connecting rod (4);

the third connecting rod (6), the one end of third connecting rod (6) with bell (3) are articulated, the one end sliding connection of third connecting rod (6) deviating from bell (3) in spout (51), second connecting rod (5) with third connecting rod (6) form the telescopic link in order to right bell (3) are opened and are closed the angle and are adjusted.

3. A flat panel furnace according to claim 2, characterized in that the first connecting rod (4) is hinged to the furnace body (1) at a hinge point a, the distance between the hinge point a and the back plate (11) of the furnace body (1) being smaller than the length of the first connecting rod (4), the first connecting rod (4) being stopped against the furnace body (1) when the furnace lid (3) is in an open state.

4. A flat panel furnace according to claim 3, characterized in that the length of the second connecting rod (5) is greater than the length of the first connecting rod (4), the second connecting rod (5) is hinged with the furnace body (1) at a hinge point B, the hinge point a, the hinge point B, the first connecting rod (4) and the second connecting rod (5) are located in the same vertical plane, and the hinge point B is arranged away from the back plate (11) with respect to the hinge point a.

5. The flat panel furnace according to claim 2, characterized in that the link assembly further comprises a locking element (7), which locking element (7) is capable of locking the third link (6) within the chute (51).

6. The flat plate furnace according to claim 5, wherein the bottom of the chute (51) is provided with a plurality of first holes (52), the third connecting rod (6) is provided with a second hole (61), and the locking piece (7) can be arranged in the second hole (61) and any one of the first holes (52) in a penetrating way so as to lock the second connecting rod (5) and the third connecting rod (6).

7. The flat furnace according to claim 6, characterized in that the locking piece (7) is of a pin structure with a big end, the locking piece (7) comprises a head (71), a pin rod (72) and an elastic bulge (73), the elastic bulge (73) is circumferentially arranged around the pin rod (72), and when the locking piece (7) is penetrated into the first hole (52) and the second hole (61), the elastic bulge (73) can be stopped against one side of the second connecting rod (5) or the third connecting rod (6) which is deviated from the head (71).

8. The flat panel furnace according to claim 2, characterized in that the connecting rod assembly further comprises two first hinging seats (8) and two second hinging seats (9), wherein the two first hinging seats (8) are L-shaped, one ends of the two first hinging seats (8) are respectively detachably connected with the furnace body (1), and the other ends are respectively hinged with the first connecting rod (4) and the second connecting rod (5); the two second hinging seats (9) are fixedly arranged on the furnace cover (3), and the first connecting rod (4) and the third connecting rod (6) are hinged with the two second hinging seats (9) respectively.

9. The flat plate furnace according to claim 8, characterized in that two second hinge seats (9) are provided in the middle of the furnace cover (3) in the sidewall direction and on both sides of the sidewall center of the furnace cover (3), respectively.

10. The flat plate furnace according to any one of claims 1-9, characterized in that one side of the furnace cover (3) connected with the connecting rod assembly is a plane, the baking pan (2) is provided with a surrounding baffle, one end of the surrounding baffle, which is away from the baking pan (2), is an inclined plane relative to the baking pan (2), and the plane of the furnace cover (3) can be covered on the inclined plane to cover the baking pan (2).