Closed electric furnace for laboratory

Abstract

The utility model relates to the technical field of electric furnaces, and discloses a closed electric furnace for a laboratory, which comprises an outer cover, the inner side of the outer cover is rotatably connected with an inner cover, the bottom of the inner side of the inner cover is fixedly connected with a water tank, the right side of the inner wall of the inner cover is fixedly connected with a motor, and the output end of the motor is fixedly connected with a rotating rod. The output end of the rotating rod is fixedly connected with a first bevel gear, the top of the water tank is fixedly connected with a positioning disc, the bottom of the positioning disc is rotationally connected with a second bevel gear, and the second bevel gear is connected with the first bevel gear in an engaged mode. According to the utility model, the fan blades are rotated to drive the airflow to flow and rotate the inner cover and the outer cover at the same time, so that the heating uniformity is improved, the waste heat discharge effect is improved after use, and the sealing cover is pushed to move through the expansion of air in the air cylinder, so that the fluted disc and the indication block are driven to rotate; the temperature of the water tank can be judged by monitoring the indicating block through the observation window.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric furnace technical field especially relates to a closed electric furnace for laboratory. BACKGROUND

[0002] The closed electric furnace for laboratory refers to an electric furnace device specially applied to laboratory scenes, which adopts a closed design, can greatly reduce heat loss to the surrounding environment, makes energy more efficient, and helps maintain the overall temperature stability of the laboratory.

[0003] Through the search, the patent of China announcement number for: CN213577691U, discloses a kind of fully-enclosed electric furnace, including inner bucket one, inner bucket two, the inner bucket one is sleeved in inner bucket two exterior, the inner bucket two exterior is sleeved with furnace bucket, the furnace bucket upper connection has panel, the panel upper is equipped with anti-scald board;The panel lower is equipped with outer barrel, the outer barrel is sleeved in furnace bucket exterior, the outer barrel surface is equipped with a plurality of heat conduction holes;The outer barrel and panel are welded as a whole;The outer barrel lower is equipped with base, the base upper is equipped with power connection hole.The utility model cooperates with the cooperation of multilayer inner bucket and outer barrel, so that heat is slowly conducted in the airflow of restriction, and the gradual release of heat makes the electric energy utilization efficiency high, and in actual use, it also will not cause the user to be scalded because of rapid heating and rapid temperature rise, and reach the best balance between energy saving and high-efficiency heating in fully-enclosed electric furnace heating, but the device in actual use, after work, the heat in its interior cannot be quickly dissipated, long-term high-temperature state can make electronic components and circuit bear excessive thermal stress, prone to failure and damage, thereby reducing the practicability of device. SUMMARY

[0004] In order to make up for the above shortcomings, the utility model provides a kind of closed electric furnace for laboratory, to improve the problem that internal residual heat cannot be quickly handled after work in prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a kind of closed electric furnace for laboratory, including outer cover, the inner side of the outer cover is rotatably connected with inner cover, the inner side bottom of the inner cover is fixedly connected with water tank, the inner wall right side of the inner cover is fixedly connected with motor, the output of the motor is fixedly connected with rotating rod, the output of the rotating rod is fixedly connected with first bevel gear, the top of the water tank is fixedly connected with positioning disc, the bottom of the positioning disc is rotatably connected with second bevel gear, the second bevel gear is meshingly connected with the first bevel gear, the top of the second bevel gear penetrates the positioning disc and is fixedly connected with fan blade, the inner side top of the outer cover is fixedly connected with electric heating wire, the top of the outer cover is provided with heating plate, the left side of the water tank is provided with temperature measuring mechanism, and the temperature measuring mechanism is used to monitor device temperature in real time.

[0006] As a further description of the above technical solutions:

[0007] The temperature measuring mechanism comprises a cylinder, the cylinder is fixedly connected to the left side of the water tank, the inner side of the cylinder is slidably connected with a sealing cylinder, the inner top of the cylinder is rotatably connected with a threaded rod, the threaded rod is threadedly connected with the sealing cylinder, the left side of the threaded rod penetrates through the cylinder and is fixedly connected with a gear, the left side of the cylinder is rotatably connected with a toothed disc, the outer side of the toothed disc is fixedly connected with a plurality of indicating blocks, the outer side of the cylinder is fixedly connected with a sealing cover, and the outer side of the sealing cover is provided with an observation window.

[0008] As a further description of the above technical solutions:

[0009] The bottom of the heating plate is fixedly connected with a plurality of mounting blocks, the top of the outer cover is provided with a plurality of mounting holes, and the mounting holes are clamped with the mounting blocks.

[0010] As a further description of the above technical solutions:

[0011] The bottom of the outer cover is provided with a bottom plate, the outer side of the bottom plate is fixedly connected with a hinge, and the bottom plate is rotatably connected with the outer cover through the hinge.

[0012] As a further description of the above technical solutions:

[0013] The bottom right side of the bottom plate is rotatably connected with a limiting plate, the bottom right side of the outer cover is fixedly connected with a limiting block, and the limiting block is clamped with the limiting plate.

[0014] As a further description of the above technical solutions:

[0015] The right side of the outer cover is fixedly connected with a controller, and the controller is electrically connected with the electric heating wire and the motor.

[0016] As a further description of the above technical solutions:

[0017] The front and rear sides of the outer wall of the outer cover are fixedly connected with handles, and the outer side of the handle is fixedly connected with a sheath.

[0018] As a further description of the above technical solutions:

[0019] The bottom of the outer cover is fixedly connected with a positioning block, and the outer side of the positioning block is provided with a positioning hole.

[0020] The utility model has the advantages of the following beneficial effects:

[0021] 1. The utility model discloses a heating plate is realized heating through starting electric heating wire heating, and simultaneously starting motor drives the rotation of the first bevel gear on the rotating rod, and then drives the rotation of the second bevel gear through meshing transmission, thereby rotating the fan blade along the top of the positioning disc, and the airflow in the inner cover is caused to flow, and the uniformity in the heating process is improved, after the device is used, the hollow on the outer cover is butt joint through the rotation of the inner cover, the communication of the inner and outer airflow is realized, along with the rotation of the fan blade, the waste heat can be recycled through the water tank and rapidly discharged from the device after work, prevent the device from malfunctioning and damaging, thereby improve the practicality of the device.

[0022] 2. The utility model discloses a sealing cover is moved through the air expansion in the air cylinder, when being heated, the movement of the sealing cover drives the rotation of the threaded rod through the threaded connection, and then drives the rotation of the gear on it, the gear drives the rotation of the toothed disc and the indicating block through meshing transmission, through the observation window on the outside of the sealing cover, the current number of indicating blocks can be observed, so that the temperature of the current water tank is monitored, thereby improve the convenience of the device. DRAWINGS

[0023] Figure 1 A perspective view of a closed electric furnace for laboratory is provided for the utility model;

[0024] Figure 2 A front view of a closed electric furnace for laboratory is provided for the utility model;

[0025] Figure 3 A temperature measuring mechanism exploded view of a closed electric furnace for laboratory is provided for the utility model;

[0026] Figure 4 A partial structure explosion map of a closed electric furnace for laboratory is provided for the utility model;

[0027] Figure 5 A bottom view of a closed electric furnace for laboratory is provided for the utility model;

[0028] Figure 6 A partial structure exploded view of a closed electric furnace for laboratory is provided for the utility model.

[0029] Legend:

[0030] 1, cover; 2, temperature measuring mechanism; 201, air cylinder; 202, sealing cylinder; 203, threaded rod; 204, gear; 205, toothed disc; 206, indicating block; 207, sealing cover; 208, observation window; 3, inner cover; 4, water tank; 5, motor; 6, rotating rod; 7, first bevel gear; 8, positioning disc; 9, second bevel gear; 10, fan blade; 11, heating wire; 12, heating plate; 13, mounting hole; 14, mounting block; 15, positioning block; 16, positioning hole; 17, handle; 18, sheath; 19, bottom plate; 20, hinge; 21, limiting plate; 22, limiting block; 23, controller. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0032] With reference to Figure 1 , Figure 4 and Figure 6 , the utility model provides an embodiment: a laboratory closed electric furnace, including cover 1, the inner side of cover 1 is rotatably connected with inner cover 3, the inner side bottom of inner cover 3 is fixedly connected with water tank 4, the inner wall right side of inner cover 3 is fixedly connected with motor 5, the output of motor 5 is fixedly connected with rotating rod 6, the output of rotating rod 6 is fixedly connected with first bevel gear 7, the top of water tank 4 is fixedly connected with positioning disc 8, the bottom of positioning disc 8 is rotatably connected with second bevel gear 9, second bevel gear 9 is engagedly connected with first bevel gear 7, the top of second bevel gear 9 penetrates positioning disc 8 and is fixedly connected with fan blade 10, the inner side top of cover 1 is fixedly connected with heating wire 11, the top of cover 1 is provided with heating plate 12, the left side of water tank 4 is provided with temperature measuring mechanism 2, temperature measuring mechanism 2 is used for real-time monitoring device temperature, specifically, by starting heating wire 11, heating plate 12 can be heated to carry out heating work, simultaneously, starting motor 5 drives rotating rod 6 and first bevel gear 7 on it to rotate, can drive second bevel gear 9 to rotate by engaging transmission, to drive fan blade 10 to rotate along the top of positioning disc 8, make the airflow in inner cover 3 flow, improve the uniformity when heating, when the device is used, by rotating cover 1 along inner cover 3, the hollows on it intersect, the inner and outer airflow are communicated, at this moment, along with the rotation of fan blade 10, the remaining heat can be recycled by water tank and quickly discharged after work, prevent the device from malfunctioning and damaging.

[0033] With reference to Figure 1 , Figure 2 andFigure 3 The temperature measuring mechanism 2 comprises an air cylinder 201 fixedly connected to the left side of the water tank 4, an inner side of the air cylinder 201 being slidably connected with a sealing cylinder 202, an inner top of the air cylinder 201 being rotatably connected with a threaded rod 203, the threaded rod 203 being threadedly connected with the sealing cylinder 202, a left side of the threaded rod 203 penetrating through the air cylinder 201 and being fixedly connected with a gear 204, a left side of the air cylinder 201 being rotatably connected with a toothed disc 205, an outer side of the toothed disc 205 being fixedly connected with a plurality of indicating blocks 206, an outer side of the air cylinder 201 being fixedly connected with a sealing cover 207, an outer side of the sealing cover 207 being provided with an observation window 208;

[0034] Specifically, the air in the air cylinder 201 can expand to push the sealing cylinder 202 to move when heated, the movement of the sealing cylinder 202 can drive the threaded rod 203 to rotate through the threaded connection, so as to drive the gear 204 on the threaded rod 203 to rotate, and drive the toothed disc 205 and the indicating blocks 206 to rotate through the meshing transmission, at this time, the number of the indicating blocks 206 can be observed through the observation window 208 on the outer side of the sealing cover 207, so as to monitor the temperature of the water tank 4.

[0035] With reference to Figure 2 , Figure 4 and Figure 5 , a plurality of mounting blocks 14 are fixedly connected to the bottom of the heating plate 12, a plurality of mounting holes 13 are formed in the top of the outer cover 1, and the mounting holes 13 are clamped with the mounting blocks 14; a bottom plate 19 is arranged at the bottom of the outer cover 1, a hinge 20 is fixedly connected to the outer side of the bottom plate 19, and the bottom plate 19 is rotatably connected with the outer cover 1 through the hinge 20; a limiting plate 21 is rotatably connected to the bottom right side of the bottom plate 19, and a limiting block 22 is fixedly connected to the bottom right side of the outer cover 1, and the limiting block 22 is clamped with the limiting plate 21.

[0036] Specifically, the clamping of the mounting blocks 14 and the mounting holes 13 can facilitate the disassembly and assembly of the heating plate 12, so as to facilitate the inspection and maintenance of the inside of the device, the opening and closing of the bottom plate 19 through the hinge 20 can facilitate the access to the water in the water tank 4, and the clamping of the limiting block 22 and the limiting plate 21 through the rotation of the limiting plate 21 can prevent the accidental opening of the bottom plate 19 during use.

[0037] With reference to Figure 2 , Figure 4 and Figure 5 , a controller 23 is fixedly connected to the right side of the outer cover 1, and the controller 23 is electrically connected with the electric heating wire 11 and the motor 5; handles 17 are fixedly connected to the front and rear sides of the outer wall of the outer cover 1, and sheaths 18 are fixedly connected to the outer sides of the handles 17; positioning blocks 15 are fixedly connected to the bottom of the outer cover 1, and positioning holes 16 are formed in the outer sides of the positioning blocks 15.

[0038] Specific, by the controller 23 can control the start and running power of the heating wire 11 and the motor 5 respectively, by the handle 17 and the sheath 18 on it, can facilitate holding and carrying the device, by installing the threaded part in the positioning hole 16 on the positioning block 15, can facilitate the installation and fixation of the device.

[0039] Working principle: before using the device, first through the start of the heating wire 11 heating plate 12, while starting the motor 5 drive rotating rod 6 on the first bevel gear 7, through the meshing transmission drive second bevel gear 9 rotation, second bevel gear 9 drive fan blade 10 along the top of the positioning disc 8 rotation, make the airflow inside the inner cover 3 flow, improve the uniformity of heating process, after use, by rotating the inner cover 3 make the hollow on the outer cover 1 alignment, the inner and outer airflow connected, the rotation of the fan blade 10 will quickly discharge the remaining heat in the device, prevent device failure and damage;

[0040] The movement of the sealing cylinder 202 drives the threaded rod 203 to rotate through the threaded connection when heated, in turn driving the gear 204 to rotate, the gear 204 drives the gear disc 205 and the indicating block 206 to rotate through meshing transmission, the temperature of the current water tank 4 can be monitored through the observation window 208 on the outside of the sealing cover 207, and the temperature is measured according to the position number of the indicating block 206.

[0041] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for the skilled in the art, it still can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A laboratory enclosed electric furnace, comprising an outer casing (1), characterized in that: The inner cover (3) is rotatably connected to the inner side of the outer cover (1). A water tank (4) is fixedly connected to the bottom of the inner side of the inner cover (3). A motor (5) is fixedly connected to the right side of the inner wall of the inner cover (3). A rotating rod (6) is fixedly connected to the output end of the motor (5). A first bevel gear (7) is fixedly connected to the output end of the rotating rod (6). A positioning plate (8) is fixedly connected to the top of the water tank (4). A second bevel gear (9) is rotatably connected to the bottom of the positioning plate (8). The second bevel gear (9) meshes with the first bevel gear (7). The top of the second bevel gear (9) passes through the positioning plate (8) and is fixedly connected to a fan blade (10). A heating wire (11) is fixedly connected to the top of the inner side of the outer cover (1). A heating plate (12) is provided on the top of the outer cover (1). A temperature measuring mechanism (2) is provided on the left side of the water tank (4). The temperature measuring mechanism (2) is used to monitor the temperature of the device in real time.

2. The enclosed electric furnace for laboratory use according to claim 1, characterized in that: The temperature measuring mechanism (2) includes an air cylinder (201), which is fixedly connected to the left side of the water tank (4). A sealing cylinder (202) is slidably connected to the inner side of the air cylinder (201). A threaded rod (203) is rotatably connected to the top of the inner side of the air cylinder (201). The threaded rod (203) is threadedly connected to the sealing cylinder (202). A gear (204) is fixedly connected to the left side of the threaded rod (203) through the air cylinder (201). A gear disc (205) is rotatably connected to the left side of the air cylinder (201). Multiple indicator blocks (206) are fixedly connected to the outer side of the gear disc (205). A sealing cover (207) is fixedly connected to the outer side of the air cylinder (201). An observation window (208) is opened on the outer side of the sealing cover (207).

3. A sealed electric furnace for laboratory use according to claim 1, characterized in that: The bottom of the heating plate (12) is fixedly connected with multiple mounting blocks (14), and the top of the outer cover (1) is provided with multiple mounting holes (13), which engage with the mounting blocks (14).

4. A laboratory enclosed electric furnace according to claim 1, characterized in that: The bottom of the outer cover (1) is provided with a base plate (19), and a hinge (20) is fixedly connected to the outside of the base plate (19). The base plate (19) is rotatably connected to the outer cover (1) through the hinge (20).

5. A laboratory enclosed electric furnace according to claim 4, characterized in that: A limiting plate (21) is rotatably connected to the bottom right side of the base plate (19), and a limiting block (22) is fixedly connected to the bottom right side of the outer cover (1). The limiting block (22) engages with the limiting plate (21).

6. A sealed electric furnace for laboratory use according to claim 1, characterized in that: A controller (23) is fixedly connected to the right side of the outer cover (1), and the controller (23) is electrically connected to the heating wire (11) and the motor (5).

7. A laboratory enclosed electric furnace according to claim 1, characterized in that: The outer cover (1) has handles (17) fixedly connected to the front and rear sides of its outer wall, and a protective sleeve (18) is fixedly connected to the outside of the handles (17).

8. A laboratory enclosed electric furnace according to claim 1, characterized in that: The bottom of the outer cover (1) is fixedly connected with positioning blocks (15) around the perimeter, and positioning holes (16) are opened on the outer side of the multiple positioning blocks (15).

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