CN220793595U

CN220793595U - Electric heating constant temperature drying oven

Info

Publication number: CN220793595U
Application number: CN202322234753.6U
Authority: CN
Inventors: 魏华; 柏映光; 杨洁
Original assignee: Kaile Testing And Certification Group Hainan Co ltd
Current assignee: Kaile Testing And Certification Group Hainan Co ltd
Priority date: 2023-08-21
Filing date: 2023-08-21
Publication date: 2024-04-16
Anticipated expiration: 2033-08-21

Abstract

The utility model provides an electric heating constant temperature drying oven, and belongs to the technical field of electric heating drying ovens. The drying box comprises a drying box body and an exhaust pipe fixedly arranged at the top of the drying box body, wherein the top end of the exhaust pipe is fixedly connected with a middle cylinder, the top end of the middle cylinder is fixedly connected with a connecting pipe, the side wall of the connecting pipe is fixedly connected with a delivery pipe, a dust filtering net, a dehumidifying layer and an odor purifying layer are respectively and fixedly arranged in the middle cylinder from bottom to top, a motor is fixedly arranged at the top end of the connecting pipe, an output shaft of the motor is fixedly connected with a main shaft structure, the main shaft structure penetrates through the dust filtering net, the dehumidifying layer and the odor purifying layer, and the bottom end of the main shaft structure is positioned in the exhaust pipe and is fixedly provided with a fan. The utility model can effectively purify dust, moisture and smell generated by drying materials, can automatically clean the dust filtering net, does not need frequent cleaning by manpower, and is more convenient.

Description

Electric heating constant temperature drying oven

Technical Field

The utility model relates to the field of electric heating drying boxes, in particular to an electric heating constant temperature drying box.

Background

An electrothermal constant temperature drying oven is a common laboratory device for drying objects. It provides heat through the heating element. The interior of the drying cabinet is usually provided with an adjustable temperature range, which can be set according to the requirements. In the drying oven, the object is placed in an internal heating chamber, and the drying process of the object is accelerated by hot air in the heating chamber. The equipment is widely applied to the fields of laboratories, medicines, foods, chemical industry and the like, and is used for drying, heating, constant-temperature preservation and other operations.

Through retrieving, the patent application with the publication number of CN210346110U discloses an electric heating constant temperature drying oven, which comprises a constant temperature drying oven, a fan, an air outlet and other structures, and the air flow is increased and kept dry in the drying equipment through the fan and a dehumidifying port, so that the speed and the effect during drying are improved. The air outlet can exhaust air and remove moisture, but lacks purification measures, and when materials with large smell or easy dust generation are dried, the smell and the dust can be directly discharged from the air outlet, so that the environment is polluted. Although some technologies adopt a dust screen to filter dust, the dust screen has single filtering function, is easy to block, and is relatively inconvenient to clean.

How to invent an electrothermal constant temperature drying oven to improve the problems becomes a urgent problem to be solved by the person skilled in the art.

Disclosure of Invention

In order to make up for the defects, the utility model provides an electric heating constant temperature drying oven, which aims to solve the problems.

The utility model is realized in the following way:

the utility model provides an electric heating constant temperature drying oven which comprises a drying oven body and an exhaust pipe fixedly arranged at the top of the drying oven body, wherein the top end of the exhaust pipe is fixedly connected with a middle cylinder, the top end of the middle cylinder is fixedly connected with a connecting pipe, the side wall of the connecting pipe is fixedly connected with a delivery pipe, a dust filtering net, a dehumidifying layer and an odor purifying layer are respectively and fixedly arranged in the middle cylinder from bottom to top, a motor is fixedly arranged at the top end of the connecting pipe, an output shaft of the motor is fixedly connected with a main shaft structure, the main shaft structure penetrates through the dust filtering net, the dehumidifying layer and the odor purifying layer, the bottom end of the main shaft structure is positioned in the exhaust pipe and is fixedly provided with a fan, and the side wall of the main shaft structure is also provided with a cleaning structure for automatically cleaning dust attached to the lower surface of the dust filtering net.

Preferably, the exhaust pipe, the middle cylinder, the connecting pipe and the delivery pipe are sequentially communicated with each other.

Preferably, a top cover is fixedly arranged at the top end of the middle cylinder, and the connecting pipe is fixedly connected to the outer side wall of the top end of the top cover.

Preferably, the main shaft structure includes interconnect and the axial setting's of following the connecting pipe driving shaft and driven shaft, the top of driving shaft and the output shaft fixed connection of motor, the bottom of driving shaft is connected with the driven shaft, the driven shaft runs through dust filtering net, dehumidification layer and smell purification layer, fixedly provided with support on the inside wall of exhaust pipe, the driven shaft wears to establish on the support, be provided with the bearing between driven shaft and the support, fan fixed connection is in the bottom of driven shaft.

Preferably, the bottom end of the driving shaft is connected with the top end of the driven shaft through a spline.

Preferably, the cleaning structure is a scraper fixedly connected to the side wall of the driven shaft, the scraper is located below the dust filtering net, and one side, close to the dust filtering net, of the scraper is attached to the lower surface of the dust filtering net.

Preferably, the diameter of the middle cylinder is larger than that of the exhaust pipe, a plurality of dust exhaust ports are formed in the bottom side wall of the middle cylinder in a penetrating manner, two semicircular collecting boxes which are oppositely arranged are sleeved on the outer side wall of the exhaust pipe, an opening is formed in the top end of each collecting box, and the opening is connected with the dust exhaust ports.

Preferably, the top end of the exhaust pipe is fixedly connected with a conical ring, the conical ring is positioned at the inner bottom of the middle cylinder, and the diameter of the top end of the conical ring is smaller than that of the bottom end of the conical ring.

The beneficial effects of the utility model are as follows: through the cooperation use between exhaust pipe, intermediate barrel, dust filter net, dehumidification layer, smell purification layer, fan, main shaft structure and the scraper blade, through motor drive fan rotation, make the below of fan produce negative pressure, this internal air of drying cabinet upwards discharges through the exhaust pipe, after the dust filter net filters the dust, further purifies by dehumidification layer and smell purification layer again, guarantees the cleanliness factor of exhaust gas, prevents the serious polluted environment of exhaust air. Meanwhile, in the process that the main shaft structure drives the fan to rotate, the scraping plate can automatically scrape dust attached to the lower surface of the dust filtering net along with the rotation of the main shaft structure, so that the dust filtering net is prevented from being blocked in a large area, the self-cleaning function of the dust filtering net is realized, the normal filtering capacity of the dust filtering net is ensured, the manual frequent cleaning is not needed, and the dust filtering machine is convenient.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of an external appearance structure of an electrothermal constant temperature drying oven according to an embodiment of the present utility model;

fig. 2 is a schematic diagram of a partial structure of an electrothermal constant temperature drying oven according to an embodiment of the present utility model;

fig. 3 is a schematic bottom view of a partial structure of an electrothermal constant temperature drying oven according to an embodiment of the present utility model;

FIG. 4 is a partial sectional view of an electrothermal constant temperature drying oven according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a collection box of an electrothermal constant temperature drying oven according to an embodiment of the present utility model;

fig. 6 is a schematic diagram of spline connection of an electrothermal constant temperature drying oven according to an embodiment of the present utility model.

In the figure: 1. a drying box body; 2. an exhaust pipe; 3. an intermediate cylinder; 4. a connecting pipe; 5. a motor; 6. a driving shaft; 7. a driven shaft; 8. a fan; 9. a dust filtering net; 10. a dehumidifying layer; 11. an odor purification layer; 12. a scraper; 13. a dust discharge port; 14. a collection box; 15. a top cover; 16. a delivery tube; 17. a conical ring.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

Examples

Referring to fig. 1-6, an electric heating constant temperature drying oven comprises a drying oven body 1 and an exhaust pipe 2 fixedly arranged at the top of the drying oven body 1, wherein the top end of the exhaust pipe 2 is fixedly connected with a middle cylinder 3, the top end of the middle cylinder 3 is fixedly connected with a connecting pipe 4, the side wall of the connecting pipe 4 is fixedly connected with a delivery pipe 16, and the interior of the exhaust pipe 2, the middle cylinder 3, the connecting pipe 4 and the delivery pipe 16 are sequentially communicated with each other. The top of the middle cylinder 3 is fixedly provided with a top cover 15, and the connecting pipe 4 is fixedly connected to the outer side wall of the top end of the top cover 15.

It should be noted that, the exhaust pipe 2 is used for exhausting air, and the air inlet on the drying oven body 1 is the existing arrangement, and will not be described too much. The air discharged from the exhaust pipe 2 is discharged through the middle cylinder 3, the connecting pipe 4 and the delivery pipe 16 in sequence.

The inside of the middle cylinder 3 is fixedly provided with a dust filtering net 9, a dehumidifying layer 10 and an odor purifying layer 11 from bottom to top respectively, the top end of the connecting pipe 4 is fixedly provided with a motor 5, an output shaft of the motor 5 is fixedly connected with a main shaft structure, and the main shaft structure penetrates through the dust filtering net 9, the dehumidifying layer 10 and the odor purifying layer 11 (the specific internal structures of the dehumidifying layer 10 and the odor purifying layer 11 are in the prior art and are not described too much). The bottom of the main shaft structure is positioned in the exhaust pipe 2 and is fixedly provided with a fan 8. The side wall of the main shaft structure is also provided with a cleaning structure for cleaning dust attached to the lower surface of the dust filtering net 9.

Specifically, the main shaft structure is driven to rotate by the motor 5, so that the fan 8 rotates in the exhaust pipe 2, negative pressure is generated below the fan 8, air in the drying box body 1 is discharged into the exhaust pipe 2 under the action of air pressure, and the corresponding air inlet is used for naturally air inflow, so that air flow in the drying box body 1 is realized, and drying efficiency and dehumidification are promoted.

Dust, smell and moisture exist in the air discharged into the exhaust pipe 2, the dust and other fragments are filtered out from bottom to top by the dust filtering net 9, then the water vapor is removed by the dehumidifying layer 10, and finally the smell in the air is purified by the smell purifying layer 11, so that the cleanliness of the air discharged through the delivery pipe 16 is ensured, and the environment is prevented from being polluted.

Further, when the main shaft structure rotates, the cleaning structure on the side wall of the main shaft structure can automatically clean dust and fragments attached to the lower surface of the dust filtering net 9, so that the dust filtering net 9 is prevented from being blocked in a large area, the normal filtering capacity of the dust filtering net 9 and the normal exhaust of equipment are ensured, the dust filtering net 9 is not required to be cleaned manually and frequently, and the main shaft structure is convenient.

In one embodiment, the main shaft structure comprises a driving shaft 6 and a driven shaft 7 which are connected with each other and are arranged along the axial direction of the connecting pipe 4, the top end of the driving shaft 6 is fixedly connected with the output shaft of the motor 5, the bottom end of the driving shaft 6 is connected with the driven shaft 7, the driven shaft 7 penetrates through the dust filtering net 9, the dehumidifying layer 10 and the odor purifying layer 11, a support is fixedly arranged on the inner side wall of the exhaust pipe 2, the driven shaft 7 penetrates through the support, and a bearing is arranged between the driven shaft 7 and the support. The bottom of the driving shaft 6 is connected with the top of the driven shaft 7 through a spline. The bracket is used for limiting the up-and-down movement of the driven shaft 7, and ensuring that the driven shaft 7 rotates on the bracket without moving up and down.

The driving shaft 6 and the driven shaft 7 are connected by a spline, and the driving shaft 6 and the driven shaft 7 can be quickly inserted and pulled out. The top cover 15 and the upper structure can be conveniently detached by matching with the top cover 15, so that the top of the middle cylinder 3 can be opened, and the dust filtering net 9 in the middle cylinder 3 is conveniently arranged. The dehumidifying layer 10, the odor purifying layer 11, and the like are inspected and maintained. The subsequent assembly is also convenient, and the driving shaft 6 and the driven shaft 7 are in butt joint again, so that the quick connection of the main shaft structure is realized.

In one embodiment, the cleaning structure is a scraper 12 fixedly connected to the side wall of the driven shaft 7, the scraper 12 is located below the dust filtering net 9, and one side of the scraper 12 close to the dust filtering net 9 is attached to the lower surface of the dust filtering net 9. The diameter of the middle cylinder 3 is larger than that of the exhaust pipe 2, a plurality of dust exhaust ports 13 are formed in the bottom side wall of the middle cylinder 3 in a penetrating manner, two semicircular collecting boxes 14 which are oppositely arranged are sleeved on the outer side wall of the exhaust pipe 2, an opening is formed in the top end of each collecting box 14, and the opening is connected with the dust exhaust ports 13.

Specifically, the driven shaft 7 rotates to drive the fan 8 to exhaust air, and meanwhile, the scraping plate 12 on the side wall of the driven shaft 7 synchronously and rapidly rotates along with the driven shaft 7. Because one side of the scraping plate 12 is attached to the lower surface of the dust filtering net 9, the scraping plate 12 can scrape the lower surface of the dust filtering net 9 when rotating, dust and fragments attached to the lower surface of the dust filtering net 9 can be scraped to form dust clusters, and the dust clusters are thrown to the inner wall of the middle cylinder 3 by the scraping plate 12, so that dust attached to the lower surface of the dust filtering net 9 can be automatically cleaned without manual cleaning, and the cleaning is convenient.

The dust clusters thrown to the inner wall of the intermediate cylinder 3 fall along the inner wall of the intermediate cylinder 3, pass through the dust discharge opening 13 at the bottom of the intermediate cylinder 3 and the opening at the top end of the collecting box 14, and fall into the collecting box 14 to be collected intensively. When the collection box 14 is full, the collection box 14 is removed for cleaning.

In one embodiment, the top end of the exhaust pipe 2 is fixedly connected with a conical ring 17, the conical ring 17 is positioned at the inner bottom of the middle cylinder 3, and the diameter of the top end of the conical ring 17 is smaller than that of the bottom end of the conical ring. The conical ring 17 can block dust clusters and prevent the dust clusters from sliding down the exhaust pipe 2.

It should be noted that, the specific model specification of the motor 5 needs to be determined by selecting a model according to the actual specification of the device, and the specific model selection calculation method adopts the prior art in the field, so detailed description is omitted.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations may be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides an electric heat constant temperature drying cabinet, includes drying cabinet body (1) and fixed exhaust pipe (2) that set up at drying cabinet body (1) top, a serial communication port, the top fixedly connected with intermediate drum (3) of exhaust pipe (2), the top fixedly connected with connecting pipe (4) of intermediate drum (3), fixedly connected with delivery tube (16) on the lateral wall of connecting pipe (4), the inside of intermediate drum (3) is fixed mounting respectively from bottom to top has dust filter net (9), dehumidification layer (10) and smell purification layer (11), the top fixed mounting of connecting pipe (4) has motor (5), the output shaft fixedly connected with main shaft structure of motor (5), main shaft structure runs through dust filter net (9), dehumidification layer (10) and smell purification layer (11), main shaft structure's bottom is located the inside of exhaust pipe (2) and fixedly mounted with fan (8), still be provided with on main shaft structure's the lateral wall and be used for automatic dust removal dust filter net (9) lower surface on.

2. An electrothermal constant temperature drying oven according to claim 1, wherein the insides of the exhaust duct (2), the intermediate tube (3), the connecting tube (4), and the delivery tube (16) are sequentially communicated with each other.

3. An electrothermal constant temperature drying oven according to claim 1, wherein a top cover (15) is fixedly mounted on the top end of the intermediate tube (3), and the connecting tube (4) is fixedly connected to the top end outer side wall of the top cover (15).

4. An electrothermal constant temperature drying oven according to claim 3, wherein the main shaft structure comprises a driving shaft (6) and a driven shaft (7) which are connected with each other and are arranged along the axial direction of the connecting pipe (4), the top end of the driving shaft (6) is fixedly connected with an output shaft of the motor (5), the bottom end of the driving shaft (6) is connected with the driven shaft (7), the driven shaft (7) penetrates through a dust filtering net (9), a dehumidifying layer (10) and an odor purifying layer (11), a bracket is fixedly arranged on the inner side wall of the exhaust pipe (2), the driven shaft (7) is arranged on the bracket in a penetrating manner, a bearing is arranged between the driven shaft (7) and the bracket, and the fan (8) is fixedly connected with the bottom end of the driven shaft (7).

5. An electrothermal constant temperature drying oven according to claim 4, wherein the bottom end of the driving shaft (6) is connected with the top end of the driven shaft (7) through a spline.

6. An electrothermal constant temperature drying oven according to claim 4, wherein the cleaning structure is a scraper (12) fixedly connected to a side wall of the driven shaft (7), the scraper (12) is located below the dust filter screen (9), and one side of the scraper (12) close to the dust filter screen (9) is attached to the lower surface of the dust filter screen (9).

7. The electric heating constant temperature drying oven according to claim 6, wherein the diameter of the middle barrel (3) is larger than that of the exhaust pipe (2), a plurality of dust exhaust ports (13) are formed in the bottom side wall of the middle barrel (3) in a penetrating manner, two semicircular collecting boxes (14) which are oppositely arranged are sleeved on the outer side wall of the exhaust pipe (2), an opening is formed in the top end of each collecting box (14), and the opening is connected with the dust exhaust ports (13).

8. An electrothermal constant temperature drying oven according to claim 7, wherein the top end of the exhaust pipe (2) is fixedly connected with a conical ring (17), the conical ring (17) is positioned at the inner bottom of the middle cylinder (3), and the diameter of the top end of the conical ring (17) is smaller than the diameter of the bottom end of the conical ring.