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CN-224230643-U - Muffle furnace convenient to exhaust

CN224230643UCN 224230643 UCN224230643 UCN 224230643UCN-224230643-U

Abstract

The utility model provides a muffle furnace convenient for exhaust, wherein a furnace chamber is arranged in a furnace body, an exhaust port is arranged at the top of the furnace body, the furnace chamber is connected with the exhaust port through an exhaust pipe, a baffle plate is covered at the exhaust port, and a driving mechanism for controlling the baffle plate to rotate is arranged in the furnace body. When the exhaust is needed, the baffle is controlled to be opened through the driving mechanism, manual operation is not needed, and scalding of operators is avoided. The driving mechanism comprises a motor, a rotating shaft, a limiting plate, a first micro-switch and a second micro-switch, when the motor drives the rotating shaft to rotate, the limiting plate also swings along with the rotating shaft, and when the motor touches the micro-switch, the motor stops acting so as to control the opening and closing of the baffle at the exhaust port.

Inventors

  • LI HONG
  • LI WEIYANG
  • CHAI PENGFEI

Assignees

  • 天津拓至明实验仪器设备有限公司

Dates

Publication Date
20260512
Application Date
20250515

Claims (6)

  1. 1. A muffle furnace convenient for exhausting is characterized in that a furnace body is provided with a furnace chamber, the top of the furnace body is provided with an exhaust port, the furnace chamber is connected with the exhaust port through an exhaust pipe, a baffle is covered at the exhaust port, a driving mechanism for controlling the baffle to rotate is arranged in the furnace body, the driving mechanism comprises a motor, a rotating shaft, a limiting plate, a first micro switch and a second micro switch, the motor is arranged in the furnace body, the rotating shaft is vertically arranged and driven to rotate by the motor, the upper end of the rotating shaft is fixedly connected with the baffle, the limiting plate is fixed on the side wall of the rotating shaft, the first micro switch and the second micro switch are respectively arranged on two sides of the limiting plate, and when the rotating shaft rotates, the limiting plate is contacted with the first micro switch or the second micro switch.
  2. 2. The muffle furnace convenient for exhaust gas of claim 1, wherein the first micro switch and the second micro switch are respectively provided with a reed, and the 2 reeds are arranged oppositely.
  3. 3. The muffle furnace convenient for exhausting as set forth in claim 2, wherein the limiting plate comprises a connecting section and a contact piece, wherein an obtuse included angle is formed between the connecting section and the contact piece, the connecting section is fixed on the side wall of the rotating shaft, and the contact piece can be contacted with the reed by rotating the rotating shaft.
  4. 4. The muffle furnace convenient for exhausting as recited in claim 1, wherein the motor, the first micro-switch and the second micro-switch are arranged on a mounting frame, and the mounting frame is fixed at the top of the hearth.
  5. 5. The muffle furnace convenient for exhaust of claim 4 wherein the mounting frame is further provided with a controller circuit board, the controller circuit board is connected with the motor, the first micro switch and the second micro switch, and the outer cover of the controller circuit board is provided with a circuit board shell.
  6. 6. The muffle furnace convenient for exhaust gas according to claim 1, wherein the front side of the furnace chamber is provided with a furnace door.

Description

Muffle furnace convenient to exhaust Technical Field The utility model relates to the technical field of muffle furnaces, in particular to a muffle furnace convenient for exhaust. Background The muffle furnace generates high temperature in the furnace body to heat the object to the required temperature, and the exhaust port discharges the waste gas in the furnace body to ensure the ventilation in the furnace and improve the heating effect. A manual exhaust valve is generally reserved on the side surface or the top of the muffle furnace shell, and can be used for manual exhaust, and the method is that the exhaust valve is opened, and a person with tolerance waits for the air to be completely exhausted until no gas is emitted. However, due to the high temperature of the exhausted gas, the operator may be scalded by a little careless. Disclosure of utility model In view of the above, the present utility model aims to propose a muffle furnace facilitating the exhaust of air, so as to solve the above-mentioned problems. In order to achieve the above purpose, the technical scheme of the utility model is realized as follows: The muffle furnace convenient for exhausting is provided with a furnace chamber in a furnace body, the top of the furnace body is provided with an exhaust port, the furnace chamber is connected with the exhaust port through an exhaust pipe, a baffle is covered at the exhaust port, a driving mechanism for controlling the baffle to rotate is arranged in the furnace body, the driving mechanism comprises a motor, a rotating shaft, a limiting plate, a first micro switch and a second micro switch, the motor is arranged in the furnace body, the rotating shaft is vertically arranged and driven to rotate by the motor, the upper end of the rotating shaft is fixedly connected with the baffle, the limiting plate is fixed on the side wall of the rotating shaft, the first micro switch and the second micro switch are respectively arranged on two sides of the limiting plate, and when the rotating shaft rotates, the limiting plate is contacted with the first micro switch or the second micro switch. Further, the first micro switch and the second micro switch are respectively provided with a reed, and the 2 reeds are oppositely arranged. Further, the limiting plate comprises a connecting section and a contact piece, an obtuse included angle is formed between the connecting section and the contact piece, the connecting section is fixed on the side wall of the rotating shaft, and the contact piece and the reed can be contacted through rotation of the rotating shaft. Further, motor, first micro-gap switch and second micro-gap switch install on the mounting bracket, and the top at furnace is fixed to the mounting bracket. Further, a controller circuit board is further mounted on the mounting frame and connected with the motor, the first micro switch and the second micro switch, and a circuit board shell is arranged on the outer cover of the controller circuit board. Further, the front side of the hearth is provided with a furnace door. Compared with the prior art, the muffle furnace convenient for exhausting has the following advantages: The top of the furnace body of the muffle furnace convenient for exhausting is provided with the exhaust port, the baffle is covered at the exhaust port, the driving mechanism for controlling the baffle to rotate is arranged in the furnace body, when exhausting is needed, the baffle is controlled to be opened through the driving mechanism, manual operation is not needed, and scalding of operators is avoided. The driving mechanism comprises a motor, a rotating shaft, a limiting plate, a first micro-switch and a second micro-switch, when the motor drives the rotating shaft to rotate, the limiting plate also swings along with the rotating shaft, and when the motor touches the micro-switch, the motor stops acting so as to control the opening and closing of the baffle at the exhaust port. Drawings The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings: FIG. 1 is a schematic view of a muffle furnace for facilitating exhaust according to an embodiment of the utility model; FIG. 2 is a schematic diagram of a driving structure according to an embodiment of the present utility model; FIG. 3 is a top view of a driving structure according to an embodiment of the present utility model; fig. 4 is an internal structural view of a muffle furnace for facilitating exhaust according to an embodiment of the utility model. Reference numerals illustrate: 1. Furnace body, 2, furnace door, 3, baffle, 4, motor, 5, spindle, 6, limiting plate, 7, first micro-switch, 8, second micro-switch, 9, reed, 10, mounting frame, 11, circuit board shell, 12, exhaust pipe, 13, fur