Turntable mechanism of pizza oven and pizza oven using same

Abstract

The turntable mechanism of the pizza oven comprises a tray rack rotatably arranged in an oven body, the lower end of the tray rack is fixedly connected with a rotating shaft extending out of the oven body, the lower end of the rotating shaft is fixedly connected with a crank, and the other end, opposite to the rotating shaft, of the crank is fixedly connected with a rotor; the fixed seat is fixed to the bottom of the furnace body, an operation handle is connected to the fixed seat in a sliding mode, and the fixed seat guides and limits the operation handle to do linear reciprocating motion; and the transmission module is in transmission connection with the rotor and the operation handle.

Description

Technical Field

[0001] The utility model relates to the technical field of pizza ovens, in particular to a turntable mechanism of a pizza oven and a pizza oven using the turntable mechanism. Background Art

[0002] The traditional pizza oven includes a furnace body, which is provided with a combustion chamber and a baking chamber. A turntable is installed in the baking chamber, and the combustion chamber uses fuel to heat the baking chamber to bake the pizza on the turntable. The pizza needs to be turned over from time to time during baking to achieve the effect of uniform heating, which is time-consuming and labor-intensive. Otherwise, the pizza may be unevenly heated and burnt.

[0003] The prior art also proposes to set a driving device in the oven to drive the grill or tray rack to rotate to avoid uneven heating of the pizza on the turntable, such as U.S. Patent Publication No. US20220061588A1, U.S. Patent No. 9131802, and U.S. Patent No. 6250210.

[0004] However, although the rotating device of the oven disclosed above has the function of preventing uneven heating of the pizza on the turntable, these driving devices or mechanisms are often set up with motor drive control. The setting of the motor increases the manufacturing cost and the volume of the oven body. For ovens heated by fuel, especially pizza ovens, the use of the oven also increases the power supply requirements. It is inconvenient to connect to an external power supply with wires for outdoor use, and the battery-powered battery needs to isolate the heat of the oven body. Overall, the oven is more cumbersome in actual use. Many solutions that only require manual drive to control the turntable have been proposed in the prior art, such as the US patent with publication number US20220386626A1. However, the technical solution disclosed above is more inconvenient to operate in actual use. At the same time, this structure can only make the turntable rotate continuously but not turn around, which means that the operating handle needs to be kept on all the time, which to a certain extent also increases the time and difficulty of baking pizza.

[0005] Although many pizza oven tray control mechanisms have been proposed in the prior art, users always hope that a newer pizza oven can be provided, which can be more convenient to operate while baking pizza evenly.

[0006] Based on the above problems, it is necessary to propose a new turntable mechanism for a pizza oven. The turntable mechanism has the function of better controlling the uniform heating. At the same time, during operation, the turntable mechanism can be operated with one hand and after operation, even if the turntable is no longer driven, the turntable can maintain the rotation motion for a long time due to its small rotation resistance. At the same time, the turntable mechanism has a simple structure and a low failure rate, which reduces the manufacturing cost to a certain extent. Utility Model Content

[0007] The utility model provides a turntable mechanism of a pizza oven, which is installed on an oven body and comprises a tray frame rotatably arranged inside the oven body, wherein the lower end of the tray frame is fixedly connected to a rotating shaft extending outside the oven body, the lower end of the rotating shaft is fixedly connected to a crank, and the other end of the crank opposite to the rotating shaft is fixedly connected to a rotor;

[0008] The turntable mechanism also includes a fixed seat fixed to the bottom of the furnace body, an operating handle is slidably connected to the fixed seat, and the fixed seat guides and limits the operating handle to move linearly;

[0009] One end of the operating handle is fixedly connected to a conversion member, and the rotor is operably connected to the conversion member and is adapted to be driven by the conversion member to perform rotational motion, so that the operating handle, the crank and the conversion member together form a connecting rod mechanism;

[0010] When the operating handle performs linear motion in the fixing seat, the operating handle drives the rotor to perform rotational motion through the adapter. When the rotor performs rotational motion, the rotating shaft is driven to rotate, and further the tray rack is driven to rotate.

[0011] Preferably, the adapter is fixedly arranged at the end of the operating handle, a guide groove is provided on the adapter, the rotor is slidably arranged in the guide groove, and reciprocates between the two ends of the guide groove.

[0012] Preferably, the guide groove is arranged in an arc shape, and when the rotor revolves around the rotating shaft, the rotor slides back and forth between the two ends of the arc of the guide groove.

[0013] Preferably, the rotor comprises an outer ring and an inner ring, the outer ring and the inner ring are rotatable relative to each other, the inner ring is connected to the second end of the crank, and the outer ring is arranged in the guide groove and is slidably connected to the guide groove.

[0014] Preferably, a turntable is fixedly connected to the lower end of the rotating shaft, the rotor is rotatably arranged on the bottom surface of the turntable and is eccentrically arranged relative to the rotating shaft, and the part of the turntable connecting the rotating shaft and the rotor constitutes the crank.

[0015] Preferably, the turntable, the rotating shaft and the tray rack are coaxial.

[0016] Preferably, the fixing seat comprises a linear guide mechanism fixedly arranged at the bottom of the furnace body, the operating handle is slidably connected to the linear guide mechanism, and the linear guide mechanism guides and limits the operating handle to perform linear reciprocating motion within a stroke.

[0017] Preferably, the length direction of the linear guide mechanism is aligned with the rotation center of the rotating shaft.

[0018] Preferably, the adapter includes a connecting rod, one end of which is connected to the rotor, and the other end is hinged to the movable end of the operating handle, the length of the connecting rod is greater than the length of the crank, and the operating handle, the crank and the connecting rod together constitute a connecting rod mechanism.

[0019] The utility model also provides a pizza oven, which comprises an oven body with a baking chamber, and a turntable mechanism of any of the pizza ovens described above is installed on the oven body.

[0020] Compared with the prior art, the utility model has the following outstanding and beneficial technical effects:

[0021] The turntable mechanism has the function of better controlling the uniform heating. At the same time, during operation, the turntable mechanism can be operated with one hand and after operation, even if the turntable is no longer driven, the turntable can maintain the rotational motion for a long time due to the small rotational resistance. At the same time, the turntable mechanism has a simple structure and a low failure rate, which reduces the manufacturing cost to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the implementation manner will be briefly introduced below. Obviously, the drawings described below are only some implementation manners of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is a schematic diagram of the overall structure of a pizza oven;

[0024] Figure 2 This is a schematic diagram of the partial structure of a pizza oven;

[0025] Figure 3 This is a schematic diagram of the bottom structure of a pizza oven;

[0026] Figure 4 It is a schematic diagram of the turntable mechanism structure of a pizza oven;

[0027] Figure 5 Another schematic diagram of the turntable mechanism structure of the pizza oven;

[0028] Figure 6 It is a schematic diagram of the drive of the turntable mechanism of the pizza oven;

[0029] Figure 7 Another transmission schematic diagram of the turntable mechanism of the pizza oven;

[0030] Figure 8 Schematic diagram of the drive module of the turntable mechanism of the pizza oven.

[0031] In the figure:

[0032] Oven body (100); tray rack (200); rotating shaft (300); rotating disk (400); linear guide mechanism (500); operating handle (600); adapter (700); guide groove (800); gas combustion assembly (900); rotor (410); inner ring (411); outer ring (412); crank (420); transmission module (430); igniter (910); air inlet end (920); gas interface (921); air inlet knob (922); jet end (930); DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0034] Reference to "embodiment" or "implementation" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment or implementation may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0035] In this specification, for the sake of convenience, the words and phrases indicating the orientation or positional relationship such as "middle", "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like are used to illustrate the positional relationship of the constituent elements with reference to the drawings. This is only for the convenience of describing this specification and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. The positional relationship of the constituent elements is appropriately changed according to the orientation of the constituent elements being described. Therefore, it is not limited to the words and phrases described in the specification, and can be appropriately replaced according to the circumstances.

[0036] like Figures 1 to 5 As shown, the utility model provides a turntable mechanism of a pizza oven, which is installed on an oven body 100, and includes a tray rack 200 rotatably arranged inside the oven body, a rotating shaft 300 extending outside the oven body is fixedly connected to the lower end of the tray rack 200, a crank 420 is fixedly connected to the lower end of the rotating shaft 300, and a rotor 410 is fixedly connected to the other end of the crank 420 opposite to the rotating shaft 300;

[0037] The turntable mechanism further comprises a fixing seat fixed to the bottom of the furnace body, an operating handle 600 is slidably connected to the fixing seat, and the fixing seat guides and limits the operating handle 600 to perform linear motion;

[0038] One end of the operating handle 600 is fixedly connected to a conversion member 700, and the rotor 410 is operably connected to the conversion member 700 and is adapted to be driven by the conversion member 700 to perform rotational motion, so that the operating handle 700, the crank 420 and the conversion member 700 together form a connecting rod mechanism;

[0039] When the operating handle 600 makes a linear motion in the fixing seat, the operating handle 600 drives the rotor 410 to rotate through the adapter 700. When the rotor 410 rotates, it drives the rotating shaft 300 to rotate, and further drives the tray rack 200 to rotate. The complete cycle of the linear reciprocating motion of the operating handle 600 corresponds to a 360-degree rotation of the tray rack 200.

[0040] In this embodiment, if Figure 4 and Figure 5 As shown, the adapter 700 is fixedly connected to the operating handle 600, and a guide groove 800 is provided on the adapter 700, and the rotor 410 is slidably arranged in the guide groove 800. The guide groove 800 is arranged in an arc shape, and this arc extends substantially perpendicular to the length direction of the operating handle. In some embodiments (not shown in the figure), the guide groove 800 can also be arranged as a straight groove, and the straight groove extends substantially perpendicular to the length direction of the operating handle 600; when the rotor 410 revolves around the rotating shaft 300, the rotor 410 reciprocates between the two ends of the arc of the guide groove 800. The rotor 410 includes an outer ring 412 and an inner ring 411, and the outer ring 412 and the inner ring 411 can rotate relative to each other. The inner ring 411 is connected to the second end of the crank 420, and the outer ring 412 is arranged in the guide groove 800 and slidably connected to the guide groove 800.

[0041] The fixed seat includes a linear guide mechanism 500 fixedly set at the bottom of the oven body. The operating handle 600 is slidably connected to the linear guide mechanism 500 for reciprocating linear motion. The linear guide mechanism 500 is divided into a fixed end fixed to the bottom of the oven body and a movable end slidably set on the fixed end. The operating handle 600 is fixed to the movable end and slides relative to the fixed end. The sliding range of the movable end on the fixed end is the range of linear motion of the operating handle 600.

[0042] The linear guide mechanism 500 is aligned with the rotation center of the rotating shaft 300 in the length direction, that is, the offset between the guide center line of the linear guide mechanism 500 and the rotation center of the crank 420 is zero, and the linear guide mechanism 500 is not offset. At this time, the two ends of the guide groove 800 are respectively placed on both sides of the length direction of the linear guide mechanism 500, and the rotor 410 reciprocates between the two ends. When the rotor 410 rotates to the position farthest or closest to the linear guide mechanism 500, it is defined in the transmission mechanism that the rotor is at a dead point, and the operating handle 600 cannot drive the rotor 410 to rotate. The user only needs to push the tray rack 200 to drive the rotor 410 to pass the dead point, and in normal use In the case of use, the tray rack 200 has enough weight to form a large inertia, so that the rotor 410 can pass through the dead point during the periodic rotation, but through further improvement of the guide groove 800, the extension direction of the guide groove 800 is set to be inclined relative to the vertical direction of the length of the operating handle 600, that is, there is a certain angle between the extension direction of the guide groove 800 and the vertical direction of the length of the operating handle 600, so that the guide groove 800 drives the rotor 410 at an inclined surface, and the rotor 410 does not have a dead point in the rotation cycle; and when necessary, the linear guide mechanism 500 can also be offset, that is, the offset distance between the guide center line of the linear guide mechanism 500 and the rotation center of the crank 420 is not zero.

[0043] When the user pushes the operating handle 600 forward or backward, that is, when the operating handle 600 slides between the two ends of the fixed end, the position of the guide groove 800 of the adapter 700 on the operating handle 600 changes accordingly. Since the rotor 410 is arranged in the guide groove 800 and the rotor 410 is constrained by the crank 420, the rotor 410 can be driven by the adapter 700 and driven to drive the crank 420 to rotate around the rotating shaft 300, thereby finally realizing the rotation of the tray rack 200.

[0044] In an embodiment, Figure 6 As shown, the lower end of the rotating shaft 300 is connected to a rotating disk 400, and the rotating disk 400 rotates synchronously with the rotating shaft 300. The rotor 410 is rotatably disposed on the bottom surface of the rotating disk 400 and is eccentrically disposed relative to the rotating shaft 300. The portion of the rotating disk 400 that connects the rotating shaft 300 and the rotor 410 constitutes the crank 420, and the length direction of the linear guide mechanism 500 is aligned with the rotation center of the rotating disk 400. In some embodiments, as Figure 7 As shown, the adapter 700 includes a connecting rod, one end of which is connected to the rotor 410 , and the other end is hinged to the movable end of the operating handle 600 , and the length of the connecting rod is greater than the length of the crank 600 .

[0045] In some embodiments (not shown in the figure), one end of the operating handle 600 is hinged to the bottom of the furnace body, and a guide groove 800 is provided on the operating handle 600 and extends along the length direction of the operating handle 600. The rotor 410 is provided in the guide groove 800. When the operating handle 600 performs periodic reciprocating swinging around the hinge, the rotor 410 is driven to rotate. When the rotor 410 performs rotational motion, the rotating shaft 300 is driven to rotate, and further the tray rack 200 is driven to rotate. The complete cycle of the periodic reciprocating swinging of the operating handle 600 corresponds to a 360-degree rotation of the tray rack 200.

[0046] In this embodiment, if Figures 2 to 4 As shown, the operating handle 600 is installed at the bottom of the furnace body, and the upper end of the rotating shaft 300 passes through the bottom of the furnace body and extends to be connected with the tray rack 200 inside the furnace body. In some embodiments (not shown in the figure), by setting a reversing transmission mechanism between the rotating shaft 300 in the turntable mechanism and the tray rack 200, such as a bevel gear mechanism and a worm gear mechanism, the turntable mechanism can be separated from the tray rack 200 and set on the side wall of the furnace body. The rotating shaft 300 and the tray rack 200 are transmitted through the reversing transmission mechanism, so that the operating handle 600 set on the side wall of the furnace body can also drive the tray rack 200 to rotate. However, in this way, the transmission distance between the rotating shaft 300 and the tray rack 200 is relatively large.

[0047] In this embodiment, the rotating shaft 300 is coaxial with the tray rack 200. In some embodiments (not shown in the figure), the rotating shaft 300 and the tray rack 200 are set to be non-coaxial, so that when the rotating shaft 300 rotates, it drives the tray rack 200 to perform eccentric wheel motion inside the furnace body.

[0048] When a similar mechanism is adopted, the turntable mechanism has the function of better controlling the uniform heating. At the same time, during operation, the turntable mechanism can be operated with one hand and after operation, even if the turntable is no longer driven, the turntable can maintain the rotation motion for a longer time due to the small rotation resistance. At the same time, the turntable mechanism has a simple structure and a low failure rate, which reduces the manufacturing cost to a certain extent.

[0049] In another embodiment, the utility model further provides a turntable mechanism of a pizza oven, which is installed on an oven body 100 and includes a tray rack rotatably arranged inside the oven body, a rotating shaft 300 extending outside the oven body is fixedly connected to the lower end of the tray rack 200, a crank 420 is fixedly connected to the lower end of the rotating shaft 300, and a rotor 410 is fixedly connected to the other end of the crank 420 opposite to the rotating shaft 300;

[0050] It also includes a fixing seat fixed to the bottom of the furnace body, an operating handle 600 is slidably connected to the fixing seat, and the fixing seat guides and limits the operating handle 600 to perform linear reciprocating motion;

[0051] It also includes a transmission module 430, which is connected to the rotor 410 and the operating handle 600, and converts the linear reciprocating motion of the operating handle 600 into the rotational motion of the rotor 410 around the rotating shaft 300. When the rotor 410 rotates, it drives the tray rack 200 to rotate, and the complete cycle of the linear reciprocating motion of the operating handle 600 corresponds to a 360-degree rotation of the tray rack 200.

[0052] like Figure 8 As shown, the transmission module 430 includes an input end and an output end, and the input end and the output end are directly connected with multiple connecting rod mechanisms or multi-link mechanisms. The operating handle 600 is connected to the input end to enter linear reciprocating motion, and the rotor 410 is connected to the output end and driven to rotate.

[0053] like Figure 1 to Figure 2 As shown, the utility model also provides a pizza oven, comprising an oven body 100 having a baking chamber and a turntable mechanism installed on the oven body 100;

[0054] The turntable mechanism includes a tray frame 200 rotatably arranged inside the furnace body, the lower end of the tray frame 200 is fixedly connected to a rotating shaft 300 extending outside the furnace body, the lower end of the rotating shaft 300 is fixedly connected to a crank 420, and the other end of the crank 420 opposite to the rotating shaft 300 is fixedly connected to a rotor 410;

[0055] It also includes a fixing seat fixed to the bottom of the oven body 100, an operating handle 600 is slidably connected to the fixing seat, and the fixing seat guides and limits the operating handle 600 to perform linear reciprocating motion;

[0056] It also includes a transmission module 430, which is connected to the rotor 410 and the operating handle 600, and converts the linear reciprocating motion of the operating handle 600 into the rotational motion of the rotor 410 around the rotating shaft 300. When the rotor 410 rotates, it drives the tray rack 200 to rotate, and the complete cycle of the linear reciprocating motion of the operating handle 600 corresponds to a 360-degree rotation of the tray rack 200.

[0057] In this embodiment, a gas combustion assembly 900 is provided on one side of the oven body 100 for heating the baking chamber; wherein the gas combustion assembly 90 includes an igniter 910 for ignition, an air inlet end 920 and a jet end 930 for jet baking the tray rack 200, the air inlet end 920 is provided with a gas interface 921 and an air inlet knob 922 for controlling the air inlet size, the air inlet knob 922 is connected to an air inlet volume control valve, the air inlet volume control valve controls the gas interface 921, the air inlet knob 922 controls the opening of the gas interface 922 by controlling the air inlet volume control valve, thereby controlling the air output of the jet end 930.

[0058] In some embodiments (not shown in the figures), a chimney is provided on the top of the oven body 100, and the chimney connects the inside and the outside of the oven body. A fuel combustion assembly for heating the baking chamber is provided on one side of the oven body 100; wherein, the fuel combustion assembly includes a combustion chamber detachably connected to the oven body, and the combustion chamber is filled with fuel, and the fuel is one of a wood particle bag, a gas bag, or a firewood bag.

[0059] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. A turntable mechanism of a pizza oven, mounted on an oven body, characterized in that: It comprises a tray frame rotatably arranged inside the furnace body, the lower end of the tray frame is fixedly connected to a rotating shaft extending outside the furnace body, the lower end of the rotating shaft is fixedly connected to a crank, and the other end of the crank opposite to the rotating shaft is fixedly connected to a rotor; The turntable mechanism also includes a fixed seat fixed to the bottom of the furnace body, an operating handle is slidably connected to the fixed seat, and the fixed seat guides and limits the operating handle to move linearly; One end of the operating handle is fixedly connected to a conversion member, and the rotor is operably connected to the conversion member and is adapted to be driven by the conversion member to perform rotational motion, so that the operating handle, the crank and the conversion member together form a connecting rod mechanism; When the operating handle performs linear motion in the fixing seat, the operating handle drives the rotor to perform rotational motion through the adapter. When the rotor performs rotational motion, the rotating shaft is driven to rotate, and further the tray rack is driven to rotate.

2. The turntable mechanism of a pizza oven according to claim 1, characterized in that: The adapter is fixedly arranged at the end of the operating handle. A guide groove is provided on the adapter. The rotor is slidably arranged in the guide groove and reciprocates between the two ends of the guide groove.

3. The turntable mechanism of a pizza oven according to claim 2, characterized in that: The guide groove is arranged in an arc shape, and when the rotor revolves around the rotating shaft, the rotor slides back and forth between the two ends of the arc of the guide groove.

4. The turntable mechanism of a pizza oven according to claim 3, characterized in that: The rotor comprises an outer ring and an inner ring, the outer ring and the inner ring are relatively rotatable, the inner ring is connected to the second end of the crank, and the outer ring is arranged in the guide groove and is slidably connected to the guide groove.

5. The turntable mechanism of a pizza oven according to claim 1, characterized in that: A turntable is fixedly connected to the lower end of the rotating shaft. The rotor is rotatably arranged on the bottom surface of the turntable and is eccentrically arranged relative to the rotating shaft. The part of the turntable connecting the rotating shaft and the rotor constitutes the crank.

6. The turntable mechanism of a pizza oven according to claim 5, characterized in that: The turntable, the rotating shaft and the tray rack are coaxial.

7. The turntable mechanism of a pizza oven according to claim 1, characterized in that: The fixing seat comprises a linear guide mechanism fixedly arranged at the bottom of the furnace body, the operating handle is slidably connected with the linear guide mechanism, and the linear guide mechanism guides and limits the operating handle to perform linear reciprocating motion within a stroke.

8. The turntable mechanism of a pizza oven according to claim 7, characterized in that: The length direction of the linear guide mechanism is aligned with the rotation center of the rotating shaft.

9. The turntable mechanism of a pizza oven according to claim 1, characterized in that: The adapter comprises a connecting rod, one end of which is connected to the rotor and the other end is hinged to the movable end of the operating handle. The length of the connecting rod is greater than the length of the crank. The operating handle, the crank and the connecting rod together form a connecting rod mechanism.

10. A pizza oven, characterized in that: The pizza oven comprises an oven body having a baking chamber, and a turntable mechanism of the pizza oven as described in any one of claims 1 to 9 is installed on the oven body.

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