Improved box-type resistance furnace

Abstract

The utility model belongs to the field of resistance furnaces, and particularly relates to an improved box-type resistance furnace, which comprises a resistance furnace body and a purification box, the purification box is fixedly mounted on the rear side of the resistance furnace body, a circulating fan is mounted at the top of the purification box, a guide pipe communicated with the resistance furnace body is mounted at the top of the circulating fan, and the resistance furnace body is arranged in the guide pipe. An exhaust pipe communicated with the resistance furnace body is installed on the inner wall of one side of the purification box, a filter screen is fixedly installed in the purification box, a purification layer is installed in the purification box through a detachable structure, an impurity discharging pipe is arranged at the bottom of the purification box, and driving plates are slidably installed on the inner walls of the front side and the rear side of the purification box; a vertical rod is fixedly mounted at the bottom of the driving plate, and a brush rod matched with the inner wall of the bottom of the purifying box is fixedly mounted at the bottom of the vertical rod. The resistance furnace is reasonable in design, and smoke generated in the resistance furnace body can be filtered and purified by arranging the circulating fan and the purifying box.

Description

Technical Field

[0001] The utility model relates to the technical field of resistance furnaces, in particular to an improved box-type resistance furnace. Background Art

[0002] Box-type resistance furnace is a common form of electric furnace, which can be divided into vertical, horizontal, split and integrated types.

[0003] At present, a box-type resistance furnace is announced in a Chinese patent with announcement number CN217929756U, which relates to the technical field of resistance furnaces, including a box body, a switch door arranged on the box body, and a heating component arranged in the box body, wherein the box body is provided with a sliding tray for receiving materials and a limiting member for limiting the sliding tray, and the box body is provided with a driving component for driving the sliding tray to move. When the heated material needs to be taken out, the turntable is rotated and the rotating shaft is rotated, which will drive the gear to rotate, and the gear is meshed with the rack, and then the sliding tray is driven to move. At the same time, in order to prevent the sliding tray from tipping over downward, a first limiting plate and a second limiting plate are designed, and the sliding tray slides in the slide groove provided by the first limiting plate and the second limiting plate, so as to prevent the sliding tray from tipping over.

[0004] However, resistance furnaces are widely used in laboratories. Resistance furnaces are programmed to heat up, and some samples require a higher ashing temperature, with the final ashing temperature reaching over 1000 degrees. When the combustion is over, there is often a lot of smoke when the samples are taken out. These fumes are substances volatilized from the samples, most of which are harmful gases, which can easily cause harm to operators. Therefore, we proposed an improved box-type resistance furnace to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes an improved box-type resistance furnace.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An improved box-type resistance furnace comprises a resistance furnace body and a purification box, wherein the purification box is fixedly mounted on the rear side of the resistance furnace body, a circulating fan is mounted on the top of the purification box, a guide pipe connected to the resistance furnace body is mounted on the top of the circulating fan, and an exhaust pipe connected to the resistance furnace body is mounted on one inner wall of the purification box;

[0008] A filter is fixedly installed in the purification box, a purification layer is installed in the purification box through a detachable structure, a debris discharge pipe is opened at the bottom of the purification box, a driving plate is slidably installed on the front and rear inner walls of the purification box, a vertical rod is fixedly installed at the bottom of the driving plate, and a brush rod adapted to the inner wall of the bottom of the purification box is fixedly installed at the bottom of the vertical rod.

[0009] Preferably, a same threaded rod is rotatably mounted on the inner walls on both sides of the purification box, one end of the threaded rod extends to the outside of the purification box and is fixedly mounted with a rotating plate, and the driving plate is threadedly sleeved on the threaded rod.

[0010] Preferably, the front and rear inner walls of the purification box are provided with limiting grooves, the front and rear sides of the driving plate are fixedly mounted with limiting seats, and the limiting seats are slidably connected with the corresponding limiting grooves.

[0011] Preferably, a rotating shaft is rotatably mounted on an inner wall of one side of the purification box, the rotating shaft is located above the filter screen, and a knocking mechanism matched with the filter screen is provided on the rotating shaft.

[0012] Preferably, the knocking mechanism includes a movable hole, a T-shaped rod, a knocking ball and a fixed spring, the movable hole is opened on the rotating shaft, the T-shaped rod is slidably installed in the movable hole, a knocking ball is fixedly installed at one end of the T-shaped rod, and a fixed spring is installed between the knocking ball and the rotating shaft.

[0013] Preferably, a shell is fixedly mounted on one side of the purification box, the threaded rod and the rotating rod both extend into the shell, and a transmission mechanism is provided between the threaded rod and the rotating rod.

[0014] Preferably, the transmission mechanism comprises a driving pulley, a driven pulley and a transmission belt, the driving pulley is fixedly mounted on the threaded rod, the driven pulley is fixedly mounted on the rotating shaft, and a transmission belt is provided on a transmission sleeve between the driving pulley and the driven pulley.

[0015] Preferably, a rotating hole is provided on an inner wall of one side of the purification box, and a rotating shaft is rotatably connected to the corresponding rotating hole.

[0016] Beneficial effects of the utility model:

[0017] 1. When smoke is generated in the resistance furnace body, by starting the circulating fan, the smoke from the resistance furnace body can be sucked into the purification box through the exhaust pipe, and then enter the resistance furnace body again through the guide pipe. The purpose of filtering and purifying the smoke can be achieved through the filter screen and purification layer;

[0018] 2. When cleaning the filter, by rotating the rotating plate and the threaded rod, the threaded rod can drive the rotating shaft to rotate under the cooperation of the driving pulley, the belt and the driven pulley. The rotating shaft rotates through the T-shaped rod and the knocking ball. The knocking ball can knock the filter to shake off the dust.

[0019] 3. By opening the exhaust pipe, the rotation of the threaded rod can drive the driving plate to move, and the driving plate can drive the brush rod to move through the vertical rod. The brush rod can sweep and discharge the dust on the inner wall of the bottom of the purification box in the direction of the exhaust pipe, thereby achieving the purpose of cleaning the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional structural schematic diagram of an improved box-type resistance furnace proposed by the utility model;

[0021] Figure 2 This is a schematic diagram of the main structure of an improved box-type resistance furnace proposed by the utility model;

[0022] Figure 3 This is a schematic structural diagram of part A of an improved box-type resistance furnace proposed by the utility model;

[0023] Figure 4 This is a schematic structural diagram of part B of an improved box-type resistance furnace proposed by the utility model;

[0024] Figure 5 The utility model is a three-dimensional structural schematic diagram of a transmission mechanism of an improved box-type resistance furnace.

[0025] In the figure: 1. resistance furnace body; 2. purification box; 3. circulation fan; 4. guide pipe; 5. exhaust pipe; 6. exhaust pipe; 7. filter screen; 8. purification layer; 9. drive plate; 10. vertical rod; 11. brush rod; 12. shell; 13. threaded rod; 14. rotating plate; 15. rotating shaft; 16. moving hole; 17. T-shaped rod; 18. knocking ball; 19. fixed spring; 20. transmission mechanism; 201. driving pulley; 202. driven pulley; 203. transmission belt. DETAILED DESCRIPTION

[0026] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Reference Figure 1-5An improved box-type resistance furnace comprises a resistance furnace body 1 and a purification box 2, the purification box 2 is fixedly installed on the rear side of the resistance furnace body 1, a circulation fan 3 is installed on the top of the purification box 2, a guide pipe 4 connected with the resistance furnace body 1 is installed on the top of the circulation fan 3, an exhaust pipe 5 connected with the resistance furnace body 1 is installed on the inner wall of one side of the purification box 2, a filter screen 7 is fixedly installed in the purification box 2, a purification layer 8 installed in the purification box 2 through a detachable structure, a discharge pipe is provided at the bottom of the purification box 2, a driving plate 9 is slidably installed on the front and rear inner walls of the purification box 2, a vertical rod 10 is fixedly installed at the bottom of the driving plate 9, a brush rod 11 adapted to the bottom inner wall of the purification box 2 is fixedly installed at the bottom of the vertical rod 10, and the brush rod 11 can be provided to clean the bottom inner wall of the purification box 2.

[0028] In this embodiment, the same threaded rod 13 is rotatably installed on the inner walls on both sides of the purification box 2, one end of the threaded rod 13 extends to the outside of the purification box 2 and is fixedly installed with a rotating plate 14, and the driving plate 9 is threadedly sleeved on the threaded rod 13. By providing the threaded rod 13, the rotation of the threaded rod 13 can drive the driving plate 9 to move, and limiting grooves are provided on the front and rear inner walls of the purification box 2. Limiting seats are fixedly installed on the front and rear sides of the driving plate 9, and the limiting seats are slidably connected to the corresponding limiting grooves. By providing the limiting seats and the limiting grooves, the driving plate 9 can be guided so that the driving plate 9 can move stably.

[0029] In this embodiment, a rotating shaft 15 is rotatably installed on the inner wall of one side of the purification box 2, the rotating shaft 15 is located above the filter 7, and a knocking mechanism compatible with the filter 7 is provided on the rotating shaft 15, the knocking mechanism includes a moving hole 16, a T-shaped rod 17, a knocking ball 18 and a fixed spring 19, the moving hole 16 is opened on the rotating shaft 15, the T-shaped rod 17 is slidably installed in the moving hole 16, a knocking ball 18 is fixedly installed at one end of the T-shaped rod 17, a fixed spring 19 is installed between the knocking ball 18 and the rotating shaft 15, the rotating shaft 15 is rotated by the T-shaped rod 17 and the knocking ball 18, the filter 7 can be knocked by the knocking ball 18, and the dust can be shaken off.

[0030] In this embodiment, a shell 12 is fixedly installed on one side of the purification box 2, and the threaded rod 13 and the rotating rod both extend into the shell 12, and a transmission mechanism 20 is provided between the threaded rod 13 and the rotating rod, and the transmission mechanism 20 includes a driving pulley 201, a driven pulley 202 and a transmission belt 203. The driving pulley 201 is fixedly installed on the threaded rod 13, and the driven pulley 202 is fixedly installed on the rotating shaft 15, and a transmission belt 203 is provided on the transmission sleeve between the driving pulley 201 and the driven pulley 202. A rotating hole is opened on the inner wall of one side of the purification box 2, and the rotating shaft 15 is rotatably connected to the corresponding rotating hole. With the cooperation of the driving pulley 201, the belt and the driven pulley 202, the threaded rod 13 can drive the rotating shaft 15 to rotate.

[0031] In the utility model, when smoke is generated in the resistance furnace body 1, by starting the circulating fan 3, the smoke of the resistance furnace body 1 can be sucked into the purification box 2 through the exhaust pipe 5, and then enters the resistance furnace body 1 again through the guide pipe 4, and the purpose of filtering and purifying the smoke can be achieved through the filter screen 7 and the purification layer 8. When the filter screen 7 is cleaned, by rotating the rotating plate 14 and the threaded rod 13, under the cooperation of the driving pulley 201, the belt and the driven pulley 202, the threaded rod 13 can drive the rotating shaft 15 to rotate, and the rotating shaft 15 is rotated through the T-shaped rod 17 and the knocking ball 18. The knocking ball 18 can be used to knock the filter screen 7, so that the dust can be shaken off. By opening the exhaust pipe 6, the rotation of the threaded rod 13 can drive the driving plate 9 to move, and the driving plate 9 can drive the brush rod 11 to move through the vertical rod 10. The brush rod 11 can sweep and discharge the dust on the bottom inner wall of the purification box 2 in the direction of the exhaust pipe 6, thereby achieving the purpose of cleaning the filter screen 7.

[0032] The above is a detailed introduction to an improved box-type resistance furnace provided by the utility model. This article uses specific embodiments to explain the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. An improved box-type resistance furnace, characterized in that: The invention comprises a resistance furnace body (1) and a purification box (2), wherein the purification box (2) is fixedly mounted on the rear side of the resistance furnace body (1), a circulating fan (3) is mounted on the top of the purification box (2), a guide pipe (4) connected to the resistance furnace body (1) is mounted on the top of the circulating fan (3), and an exhaust pipe (5) connected to the resistance furnace body (1) is mounted on the inner wall of one side of the purification box (2); A filter screen (7) is fixedly installed in the purification box (2), a purification layer (8) is installed in the purification box (2) via a detachable structure, a debris discharge pipe (6) is provided at the bottom of the purification box (2), a driving plate (9) is slidably installed on the front and rear inner walls of the purification box (2), a vertical rod (10) is fixedly installed at the bottom of the driving plate (9), and a brush rod (11) adapted to the bottom inner wall of the purification box (2) is fixedly installed at the bottom of the vertical rod (10).

2. The improved box-type resistance furnace according to claim 1, characterized in that: The same threaded rod (13) is rotatably mounted on the inner walls of both sides of the purification box (2), one end of the threaded rod (13) extends to the outside of the purification box (2) and is fixedly mounted with a rotating plate (14), and the driving plate (9) is threadably sleeved on the threaded rod (13).

3. The improved box-type resistance furnace according to claim 1, characterized in that: Limiting grooves are provided on the front and rear inner walls of the purification box (2), and limiting seats are fixedly installed on the front and rear sides of the driving plate (9), and the limiting seats are slidably connected to the corresponding limiting grooves.

4. The improved box-type resistance furnace according to claim 1, characterized in that: A rotating shaft (15) is rotatably mounted on an inner wall of one side of the purification box (2); the rotating shaft (15) is located above the filter screen (7), and a knocking mechanism matched with the filter screen (7) is provided on the rotating shaft (15).

5. The improved box-type resistance furnace according to claim 4, characterized in that: The knocking mechanism comprises a moving hole (16), a T-shaped rod (17), a knocking ball (18) and a fixed spring (19); the moving hole (16) is formed on the rotating shaft (15); the T-shaped rod (17) is slidably mounted in the moving hole (16); a knocking ball (18) is fixedly mounted on one end of the T-shaped rod (17); and a fixed spring (19) is mounted between the knocking ball (18) and the rotating shaft (15).

6. The improved box-type resistance furnace according to claim 1, characterized in that: A housing (12) is fixedly mounted on one side of the purification box (2); a threaded rod (13) and a rotating rod both extend into the housing (12); and a transmission mechanism (20) is provided between the threaded rod (13) and the rotating rod.

7. The improved box-type resistance furnace according to claim 6, characterized in that: The transmission mechanism (20) comprises a driving pulley (201), a driven pulley (202) and a transmission belt (203); the driving pulley (201) is fixedly mounted on the threaded rod (13); the driven pulley (202) is fixedly mounted on the rotating shaft (15); and a transmission sleeve between the driving pulley (201) and the driven pulley (202) is provided with a transmission belt (203).

8. The improved box-type resistance furnace according to claim 4, characterized in that: A rotating hole is provided on an inner wall of one side of the purification box (2), and a rotating shaft (15) is rotatably connected to the corresponding rotating hole.

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