Pizza oven
By using the two-point positioning of the shaft sleeve and bearing in the pizza furnace and the design of the graphite shaft sleeve, the problem of rotation shaft offset is solved, and the uniform rotation and efficient heating of the pizza stone is achieved. Combined with the use of the thermal insulation layer, the cooking efficiency is improved and Heat uniformity.
Patent Information
- Application Number
- CN202421018662.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-11
AI Technical Summary
The existing pizza ovens are prone to offset the shaft due to the weight of the tray and pizza stone, which causes the pizza stone to also offset, affecting the thermal uniformity.
A structure including a motor, a rotary shaft, a bearing, a mounting seat, a tray and a pizza stone was designed. The rotary shaft was positioned through two points of the shaft sleeve and the bearing, and the graphite shaft sleeve, a pressing plate and a pressing ring were used to limit the rotation of the shaft sleeve to avoid the rotation of the shaft. Offset and add thermal insulation and mica sheets to the mount to reduce heat transfer.
It effectively prevents the shaft offset, ensures uniform rotation and efficient heating of the pizza stone, shortens cooking time, and at the same time, the thermal insulation layer reduces the heat influence of the motor on the cooking chamber.
Smart Images
Figure CN222237483U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pizza ovens, in particular to a pizza oven capable of driving a pizza stone to rotate. Background Art
[0002] In order to heat the pizza evenly, the existing pizza oven has a mechanism inside the oven body to drive the pizza stone to rotate. The mechanism includes a motor, a shaft, a bearing and a tray. The shaft is vertically arranged inside the bearing. The shaft and the tray are connected and fixed. The pizza stone sits on the tray. The motor drives the shaft to rotate. In this pizza oven structure, the shaft is easily offset during rotation due to the heavy weight of the tray and the pizza stone. The pizza stone also deviates. Utility Model Content
[0003] The utility model aims to provide a pizza oven with a rotating shaft that is not easily offset.
[0004] The purpose of the utility model is achieved in this way.
[0005] A pizza oven comprises a motor, a rotating shaft, a bearing, a mounting seat, a tray and a pizza stone arranged in an oven body. The motor and the mounting seat are arranged below a cooking cavity of the oven body, the bearing is arranged on the top of the mounting seat, the rotating shaft is rotatably arranged in the bearing, the top of the rotating shaft extends into the cooking cavity to drive the tray to rotate, the pizza stone sits on the tray, and also comprises a shaft sleeve, the shaft sleeve is arranged at the bottom of the mounting seat, the rotating shaft and the shaft sleeve rotate, and the bottom of the rotating shaft passes through the shaft sleeve and is transmission-connected to the motor.
[0006] The above technical solution can be further improved as follows.
[0007] Furthermore, the mounting seat is provided with an upper hole, a middle hole and a lower hole on the same axis, the diameter of the upper hole is larger than the diameter of the middle hole, the diameter of the middle hole is larger than the diameter of the lower hole, the sleeve sits on the step formed by the middle hole and the lower hole, a pressing plate and a pressing ring are provided in the upper hole, the bottom of the pressing plate and the top surface of the sleeve are abutted, the pressing ring sits on the pressing plate, the bearing is provided with an upper hole and the pressing plate is pressed down by the pressing ring, the bottom of the rotating shaft passes through the bearing, the pressing ring and the pressing plate sleeve and then extends downward from the lower hole, and the pressing plate and the pressing ring have no contact with the rotating shaft.
[0008] Furthermore, a heat insulation layer is provided outside the mounting base.
[0009] Furthermore, the insulation layer includes a first insulation cotton layer, a second insulation cotton layer and a mica sheet. The first insulation cotton layer ring is placed outside the upper part of the mounting seat, the second insulation cotton layer ring is placed outside the lower part of the mounting seat, the mica sheet is arranged on the bottom surface of the mounting seat, and the mica sheet extends downward from the middle hole.
[0010] Furthermore, the bottom surface of the mica sheet is connected to a support plate through a support column, the motor is arranged on the support plate, and a motor cover wrapping the motor is arranged on the support plate.
[0011] Furthermore, the output shaft of the motor and the bottom of the rotating shaft are connected for transmission via a coupling.
[0012] Furthermore, the shaft sleeve is a graphite shaft sleeve, and the graphite shaft sleeve comprises a copper sleeve and a plurality of graphite contacts arranged on the copper sleeve.
[0013] The utility model has a rotating shaft positioned at two points, the bearing and the sleeve, so that the rotating shaft is not easily offset. The sleeve and the bearing are easily installed in the mounting seat, and the bearing is restricted by the pressing plate and the pressing ring to prevent the sleeve from loosening. The heat insulation layer prevents the heat of the cooking chamber from being transferred downward. The mica sheet reduces the influence of the heat of the cooking chamber on the motor. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the cross-sectional structure of a pizza oven.
[0015] Figure 2 for Figure 1 Enlarged view of part A in the middle.
[0016] Figure 3 An exploded view of the mechanism that drives the pizza stone to rotate in a pizza oven.
[0017] Figure 4 This is a schematic diagram of the structure of the gas burner in the pizza oven. DETAILED DESCRIPTION
[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0019] Example 1, see Figure 1 and Figure 3 As shown, a pizza oven includes a motor 3, a rotating shaft 4, a bearing 41, a sleeve 42, a mounting seat 5, a tray 6 and a pizza stone 7 arranged in a furnace body 8. The motor 3 and the mounting seat 5 are arranged below the cooking cavity 80 of the furnace body 8, the bearing 41 is arranged on the top of the mounting seat 5, the rotating shaft 4 is rotatably arranged in the bearing 41, the top of the rotating shaft 4 extends into the cooking cavity 80 to drive the tray 6 to rotate, the pizza stone 7 sits on the tray 6, is sleeved at the bottom of the mounting seat 5, the rotating shaft 4 and the sleeve 42 rotate, and the bottom of the rotating shaft 4 passes through the sleeve 42 and is connected to the motor 3. Preferably, the sleeve 42 is a graphite sleeve, and the graphite sleeve includes a copper sleeve and a plurality of graphite contacts arranged on the copper sleeve. .
[0020] The mounting seat 5 is provided with an upper hole 51, a middle hole 52 and a lower hole 53 on the same axis. The diameter of the upper hole 51 is larger than that of the middle hole 52, and the diameter of the middle hole 52 is larger than that of the lower hole 53. The shaft sleeve 42 sits on the step formed by the middle hole 52 and the lower hole 53. A pressing piece 54 and a pressing ring 55 are provided in the upper hole 51. The bottom of the pressing piece 54 abuts against the top surface of the shaft sleeve 42, and the pressing ring 55 sits on the pressing piece 54. The bearing 41 is provided with an upper hole 51 and presses the pressing piece 54 downward through the pressing ring 55. The bottom of the rotating shaft 4 passes through the bearing 41, the pressing ring 55 and the shaft sleeve 42 of the pressing piece 54 and then extends downward from the lower hole 53. The pressing piece 54 and the pressing ring 55 have no contact with the rotating shaft 4.
[0021] The mounting seat 5 is provided with a heat insulation layer 9. Specifically, the heat insulation layer 9 includes a first heat insulation cotton layer 91, a second heat insulation cotton layer 92 and a mica sheet 93. The first heat insulation cotton layer 91 is placed outside the upper part of the mounting seat 5, the second heat insulation cotton layer 92 is placed outside the lower part of the mounting seat 5, and the mica sheet 93 is arranged on the bottom surface of the mounting seat 5, and the middle hole extends downwardly out of the mica sheet 93. The bottom surface of the mica sheet 93 is connected to the support plate 32 through the support column 33, the motor 3 is arranged on the support plate 32, and the support plate 32 is provided with a motor cover 30 that wraps the motor 3. The output shaft of the motor 3 and the bottom of the rotating shaft 4 are connected and driven through the coupling 31.
[0022] See also Figure 3 and Figure 4 As shown, a gas burner is provided in the pizza oven, and the gas burner includes a burner body 1 and a branch burner 2 provided on one side of the burner body 1. A plurality of first fire holes 11 are provided on the top of the burner body 1 along the length direction. A thermocouple fixing position 13 is provided at one end of the burner body 1. A thermocouple 14 is installed at the thermocouple fixing position 13. A fixing seat 12 is provided in the middle of the burner body 1. The bottom of the fixing seat 12 is used for connecting an ejector tube 15. A second fire hole 21 is provided on the top of the branch burner 2. A heating gap 10 for accommodating a pizza stone 7 is provided between the branch burner 2 and the burner body 1. The gas in the burner body 1 enters the branch burner 2, and the branch burner 2 heats the pizza stone 7 from the bottom surface upward.
[0023] The branch burner 2 includes a connecting section 22 and an extending section 23. The connecting section 22 is tilted, the upper end of the connecting section 22 is connected and fixed to the side of the fixing seat 12 of the burner body 1, the lower end of the connecting section 22 is connected and fixed to the extending section 23, the extending section 23 and the burner body 1 are arranged in parallel up and down, the heating gap 10 is formed between the extending section 23 and the burner body 1, and the second fire hole 21 is provided on the top of the connecting section 22 and the extending section 23. Preferably, the burner body 1, the connecting section 22 and the extending section 23 are integrally formed.
[0024] The burner body 1 is in the shape of a hollow arc strip, and the branch burner 2 and the burner body 1 are arranged in a T shape.
[0025] Of course, the burner body 1 and the branch burner 2 may also be separately arranged, that is, the connecting section 22 and the fixing seat 12 are connected and fixed by a connecting member (such as a bolt), and a sealing ring is provided between the connecting section 22 and the fixing seat 12.
[0026] The tray 6 is provided with a hollow portion, and the branch burner 2 can directly heat the bottom surface of the pizza stone 7. The tray 6 and one side of the pizza stone 7 are placed in the heating gap 10, and the burner body 1 and the branch burner 2 burn at the same time. The burner body 1 heats the pizza on the top surface of the pizza stone 7, and the branch burner 2 directly heats the bottom surface of the pizza stone 7, thereby heating the bottom surface of the pizza. At the same time, the motor 3 drives the pizza stone 7 to rotate through the bearing 41, and the pizza on the pizza stone 7 is evenly heated. The pizza is heated evenly and efficiently by the pizza oven, which can shorten the cooking time.
Claims
1. A pizza oven, comprising a motor, a rotating shaft, a bearing, a mounting seat, a tray and a pizza stone arranged in an oven body, wherein the motor and the mounting seat are arranged below a cooking cavity of the oven body, the bearing is arranged on the top of the mounting seat, the rotating shaft is rotatably arranged in the bearing, the top of the rotating shaft extends into the cooking cavity to drive the tray to rotate, and the pizza stone sits on the tray, wherein the characteristics are: It also includes a shaft sleeve, which is arranged at the bottom of the mounting seat. The rotating shaft and the shaft sleeve rotate, and the bottom of the rotating shaft passes through the shaft sleeve and is connected to the motor transmission.
2. The pizza oven according to claim 1, characterized in that the mounting base An upper hole, a middle hole and a lower hole are provided on the same axis. The diameter of the upper hole is larger than that of the middle hole, and the diameter of the middle hole is larger than that of the lower hole. The sleeve sits on a step formed by the middle hole and the lower hole. A pressing piece and a pressing ring are provided in the upper hole. The bottom of the pressing piece and the top surface of the sleeve are abutted against each other, and the pressing ring sits on the pressing piece. The bearing is provided with an upper hole and the pressing piece is pressed down by the pressing ring. The bottom of the rotating shaft passes through the bearing, the pressing ring and the pressing piece sleeve and then extends downward from the lower hole. The pressing piece and the pressing ring have no contact with the rotating shaft.
3. The pizza oven according to claim 1, characterized in that: A heat insulation layer is arranged outside the mounting base.
4. The pizza oven according to claim 3, characterized in that: The thermal insulation layer includes a first thermal insulation cotton layer, a second thermal insulation cotton layer and a mica sheet. The first thermal insulation cotton layer ring is placed outside the upper part of the mounting seat, the second thermal insulation cotton layer ring is placed outside the lower part of the mounting seat, the mica sheet is arranged on the bottom surface of the mounting seat, and the mica sheet extends downward from the middle hole.
5. The pizza oven according to claim 4, characterized in that: The bottom surface of the mica sheet is connected with a support plate through a support column, the motor is arranged on the support plate, and a motor cover for wrapping the motor is arranged on the support plate.
6. The pizza oven according to claim 1, characterized in that: The output shaft of the motor and the bottom of the rotating shaft are connected for transmission via a coupling.
7. The pizza oven according to claim 1, characterized in that: The shaft sleeve is a graphite shaft sleeve, which comprises a copper sleeve and a plurality of graphite contacts arranged on the copper sleeve.