Novel dryer

Abstract

The utility model relates to the technical field of dryers, in particular to a novel dryer which comprises a drying cup and a sealing cover, the sealing cover is in lap joint with the top of the drying cup, an air inlet pipe is arranged at the top of the sealing cover, a guide pipe is fixedly connected to the top end of the air inlet pipe, and a connector is fixedly connected to the end, away from the air inlet pipe, of the guide pipe. A nitrogen tank is fixedly installed on the guide pipe through a connector arranged at one end of the guide pipe, and an exhaust pipe is arranged at the bottom of the drying cup. The grain sample drying device has the advantages that a grain sample is wrapped by nitrogen, a dry environment is provided for the grain sample, no drying blind area exists, therefore, a good drying effect is achieved, the rubber pad can be jacked up only through small air pressure in the exhaust pipe, the problem that the sealing cover is jacked up through large air pressure and counter-acting force can be solved, and therefore the practicability is improved; when the nitrogen tank is replaced, nitrogen in the guide pipe cannot be lost through cooperation of the third one-way valve and the second one-way valve, and the energy-saving purpose is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of dryers, in particular to a new type of dryer. Background Art

[0002] When measuring the moisture content of grain, the grain sample needs to be weighed and then placed in a drying device for drying. The dried grain sample needs to be placed in a dryer to cool the grain sample in a dry environment. After cooling, the grain sample needs to be weighed again. The moisture content of the grain can be calculated using the two weighing values.

[0003] Among them, the structure of the dryer used in the cooling process of the grain sample after drying is very simple, mainly including a container with a lid, a suspended storage plate with holes is arranged in the container, and a desiccant or a silica gel pad is placed under the storage plate. By placing the dried grain sample on the storage plate and covering the container with a lid, the grain sample is isolated from the outside air. The desiccant or silica gel pad absorbs the moisture in the container to cool the grain sample in a dry environment, thereby preventing the dried grain sample from being damp again during the cooling process and affecting the measurement result. However, this dryer has the following defects during use:

[0004] The desiccant is located below the sample. However, after the sample is placed in the dryer, it becomes a closed space with no air circulation. Therefore, it is not easy for the air above the sample to pass downward through the desiccant to be dried. Therefore, the overall drying effect is poor, which will affect the results of grain moisture measurement. Utility Model Content

[0005] The purpose of the utility model is to solve at least one of the technical defects described in the background technology.

[0006] Therefore, one purpose of the utility model is to provide a novel dryer, aiming to solve the problem of poor drying effect of the dryer in the prior art.

[0007] In order to achieve the above-mentioned purpose, an embodiment of one aspect of the utility model provides a new type of dryer, including a drying cup and a sealing cover, wherein the sealing cover is overlapped on the top of the drying cup, an air inlet pipe is arranged on the top of the sealing cover, a conduit is fixedly connected to the top end of the air inlet pipe, an end of the conduit away from the air inlet pipe is fixedly connected to a connector, a nitrogen tank is fixedly installed on the conduit through the connector arranged at one end thereof, an exhaust pipe is arranged at the bottom of the drying cup, and a first one-way valve is arranged at the end of the exhaust pipe, so that the air in the drying cup can be discharged and the air will not enter from the exhaust pipe.

[0008] Preferably, any of the above schemes is that the first one-way valve includes a bracket, a positioning column is inserted in the middle of the bracket, a rubber pad is fixedly connected to the top of the positioning column, the rubber pad is soft and flexible, so only a very small air pressure is needed to push the rubber pad open, the bottom of the positioning column is fixedly connected to a limiting block, and the end of the exhaust pipe is fixedly connected to a limiting tube.

[0009] Preferably, any of the above schemes is provided with a second one-way valve on the air inlet pipe to prevent gas from being discharged from the air inlet pipe, and a third one-way valve is provided on the conduit near the connector to seal the protective gas in the conduit for continued use next time.

[0010] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0011] 1. Wrap the grain sample with nitrogen to provide a dry environment for the grain sample. There is no drying blind area, so it has a better drying effect.

[0012] 2. Only a small air pressure is needed in the exhaust pipe to lift up the rubber pad, thus avoiding the problem that the air pressure is too high and the reaction force will lift up the cover, causing air leakage at the connection between the drying cup and the cover, thereby improving practicality.

[0013] 3. When there is no nitrogen in the nitrogen tank and it needs to be replaced, the cooperation of the third one-way valve and the second one-way valve prevents the nitrogen in the conduit from being lost, so it can be used next time, thus achieving the purpose of energy saving.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0016] Figure 1 It is a structural schematic diagram according to the utility model;

[0017] Figure 2 It is a cross-sectional structural schematic diagram of a drying cup according to the utility model;

[0018] Figure 3 According to the utility model Figure 2 A schematic diagram of the structure enlargement at the center A;

[0019] Figure 4 It is a structural schematic diagram of the sealing cover according to the utility model.

[0020] Among them: 1. drying cup, 11. exhaust pipe, 12. support platform, 13. support plate, 14. through hole, 15. supporting leg, 2. sealing cover, 21. air inlet pipe, 22. second one-way valve, 23. plug ring, 3. conduit, 31. connector, 32. third one-way valve, 4. nitrogen tank, 5. first one-way valve, 51. bracket, 52. positioning column, 53. rubber pad, 54. limit block, 55. limit tube. DETAILED DESCRIPTION

[0021] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0022] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] like Figure 1 As shown, a novel dryer of this embodiment comprises a drying cup 1 and a cover 2, wherein the cover 2 is overlapped on the top of the drying cup 1, a sealing gasket is fixed at the position where the bottom of the cover 2 contacts the top of the drying cup 1, and the cover 2 seals the gap between the cover 2 and the drying cup 1 by its own gravity, an air inlet pipe 21 is arranged on the top of the cover 2, a conduit 3 is fixedly connected to the top of the air inlet pipe 21, and a connector 31 is fixedly connected to the end of the conduit 3 away from the air inlet pipe 21, and the conduit 3 passes through the connector 31 arranged at one end thereof. A nitrogen tank 4 is fixedly installed. After the sealing cover 2 is covered on the top of the drying cup 1, the nitrogen tank 4 can fill nitrogen into the drying cup 1 through the conduit 3. An exhaust pipe 11 is arranged at the bottom of the drying cup 1. Since the density of nitrogen is less than that of air, when the nitrogen is filled into the drying cup 1, it is located at the top, so that the air is discharged downward from the exhaust pipe 11. A first one-way valve 5 is arranged at the end of the exhaust pipe 11, so that the gas in the drying cup 1 can only be discharged from the exhaust pipe 11, and the outside air cannot enter the drying cup from the exhaust pipe 11.

[0024] Specifically, Figure 2 As shown, a support platform 12 is provided inside the drying cup 1, and a support plate 13 is overlapped on the top of the support platform 12. A through hole 14 is opened on the support plate 13, and objects are placed on the support plate 13 so that the objects are suspended in the air. The through hole 14 allows gas to pass through the support plate 13.

[0025] Specifically, a support leg 15 is fixedly connected to the bottom of the drying cup 1 to support the drying cup 1 so that the exhaust pipe 11 is suspended in the air.

[0026] Specifically, Figure 4 As shown, the bottom of the cover 2 is fixedly connected with an insert ring 23, the outer diameter of the insert ring 23 is equal to the inner diameter of the top of the drying cup 1, and after the cover 2 is covered on the drying cup 1, the insert ring 23 is inserted into the drying cup 1, thereby avoiding the problem of the cover 2 sliding in the horizontal direction.

[0027] The internal structure of a conventional one-way valve usually includes a spring. Therefore, when the gas flows, a certain air pressure is required to push open the internal sealing plate so that the spring is compressed to achieve gas transmission. Therefore, when used in a dryer, the air pressure is too high, which can easily push up the cover 2, causing gas leakage. To solve this problem, the present application provides Example 1: Figure 3 As shown, the first one-way valve 5 includes a bracket 51, a positioning column 52 is inserted in the middle of the bracket 51, and a rubber pad 53 is fixedly connected to the top of the positioning column 52. The rubber pad 53 is soft in texture, so only a very small air pressure is needed in the exhaust pipe 11 to push up the rubber pad 53 and deform the rubber pad 53. At this time, the air in the exhaust pipe 11 can be discharged from the side of the rubber pad 53. The bottom of the positioning column 52 is fixedly connected to a limiting block 54 to limit the positioning column 52 to prevent the gas from pushing the rubber pad 53 out. The end of the exhaust pipe 11 is fixedly connected to a limiting tube 55 to limit the outside air, so that the outside air can only contact the rubber pad 53 after entering the limiting tube 55. Therefore, when the outside air enters the exhaust pipe 11 from the limiting tube 55, the outside air pressure will press the rubber pad 53 to the end of the exhaust pipe 11, and the outside air can be prevented from entering the exhaust pipe 11 at this time, thereby achieving the purpose of one-way gas transmission.

[0028] Specifically, the end of the exhaust pipe 11 is bent upward, and the height of the end of the exhaust pipe 11 is lower than the height of the bottom of the drying cup 1. The bracket 51 is fixedly connected to the inner wall of the end of the exhaust pipe 11. The bracket 51 is provided with a hole, which will not block the exhaust pipe 11, so that the gas can pass through the bracket 51. The bottom of the rubber pad 53 fits with the top of the end of the exhaust pipe 11. The diameter of the rubber pad 53 is larger than the inner diameter of the exhaust pipe 11, so as to block the exhaust pipe 11. The inner diameter of the limiting tube 55 is larger than the inner diameter of the exhaust pipe 11, and the inner diameter of the limiting tube 55 is equal to the diameter of the rubber pad 53, so as to prevent air from entering from the joint between the rubber pad 53 and the exhaust pipe 11.

[0029] Example 2: Figure 1As shown, a second one-way valve 22 is arranged on the air inlet pipe 21, so that after the nitrogen in the nitrogen tank 4 enters the drying cup 1 through the air inlet pipe 21, it will no longer be transmitted in the direction of the air guide pipe 3. A third one-way valve 32 is arranged on the conduit 3 near the connector 31. When there is no nitrogen in the nitrogen tank 4 and it needs to be replaced, the third one-way valve 32 and the second one-way valve 22 are arranged so that the nitrogen in the conduit 3 will not be lost and can continue to be used next time, thereby achieving the purpose of energy saving. The second one-way valve 22 and the third one-way valve 32 can both adopt one-way valves commonly found in life.

[0030] Embodiment 3: The drying cup 1 and the cover 2 are in a square shape. The advantage of this structure is that the auxiliary device for batch storage of aluminum boxes containing grain samples is in a square shape, and the batch of aluminum boxes are placed in the square drying chamber of the drying device for drying and then taken out through the auxiliary device. The batch of dried grain samples can be placed in the square drying cup 1 together with the aluminum boxes through the square auxiliary device again.

[0031] The working principle of the utility model is as follows: when in use, the dried grain sample is placed on the top of the support plate 13, and then the cover 2 is covered on the drying cup 1, and the valve on the nitrogen tank 4 is opened to allow the nitrogen to enter the drying cup 1 through the conduit 3 and the air inlet pipe 21. Since the density of nitrogen is less than the density of air, the air in the drying cup 1 is discharged downward from the exhaust pipe 11. When the drying cup 1 is filled with nitrogen, the valve of the nitrogen tank 4 is closed. At this time, the first one-way valve 5 closes the end of the exhaust pipe 11, so that the nitrogen in the drying cup 1 wraps the grain sample. Since nitrogen is colorless, tasteless and odorless and is not easy to react with other substances, it is suitable as a protective gas and a sealer. Therefore, a dry environment can be provided for the dried grain sample to perform a cooling treatment.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] 1. Place the dried grain sample on the top of the support plate 13, and then cover the drying cup 1 with the cover 2, so that the nitrogen enters the drying cup 1 through the conduit 3 and the air inlet pipe 21, and the original air in the drying cup 1 is discharged, so that the nitrogen wraps the grain sample, providing a dry environment for the grain sample, and there is no drying blind area, so it has a better drying effect.

[0034] 2. The first one-way valve 5 realizes the purpose of one-way exhaust through the structural rubber pad 53. Since the rubber pad 53 is soft, only a very small air pressure is required in the exhaust pipe 11 to lift up the rubber pad 53 and deform the rubber pad 53. At this time, the air in the exhaust pipe 11 can be discharged from the side of the rubber pad 53. Therefore, it can avoid the problem that the reaction force of the high air pressure lifts up the cover 2, resulting in air leakage at the connection between the drying cup 1 and the cover 2, thereby improving practicality.

[0035] 3. By setting the second one-way valve 22 and the third one-way valve 32, when there is no nitrogen in the nitrogen tank 4 and it needs to be replaced, the cooperation between the third one-way valve 32 and the second one-way valve 22 prevents the nitrogen in the conduit 3 from being lost and can continue to be used next time, thereby achieving the purpose of energy saving.

Claims

1. A new type of dryer, characterized in that: The invention comprises a drying cup (1) and a sealing cover (2), wherein the sealing cover (2) is overlapped on the top of the drying cup (1), an air inlet pipe (21) is arranged on the top of the sealing cover (2), a conduit (3) is fixedly connected to the top of the air inlet pipe (21), an end of the conduit (3) away from the air inlet pipe (21) is fixedly connected to a connector (31), a nitrogen tank (4) is fixedly installed on the conduit (3) via the connector (31) arranged at one end thereof, an exhaust pipe (11) is arranged at the bottom of the drying cup (1), and a first one-way valve (5) is arranged at the end of the exhaust pipe (11).

2. The novel dryer according to claim 1 is characterized in that: A support platform (12) is arranged inside the drying cup (1), a support plate (13) is overlapped on the top of the support platform (12), and a through hole (14) is opened on the support plate (13).

3. The novel dryer according to claim 1 is characterized in that: The bottom of the drying cup (1) is fixedly connected with a supporting leg (15).

4. The novel dryer according to claim 1 is characterized in that: The first one-way valve (5) comprises a bracket (51), a positioning column (52) is inserted in the middle of the bracket (51), a rubber pad (53) is fixedly connected to the top of the positioning column (52), a limiting block (54) is fixedly connected to the bottom of the positioning column (52), and a limiting tube (55) is fixedly connected to the end of the exhaust pipe (11).

5. The novel dryer according to claim 4 is characterized in that: The end of the exhaust pipe (11) is bent upward, the bracket (51) is fixedly connected to the inner wall of the end of the exhaust pipe (11), the bottom of the rubber pad (53) is in contact with the top of the end of the exhaust pipe (11), the diameter of the rubber pad (53) is larger than the inner diameter of the exhaust pipe (11), the inner diameter of the limiting tube (55) is larger than the inner diameter of the exhaust pipe (11), and the inner diameter of the limiting tube (55) is equal to the diameter of the rubber pad (53).

6. The novel dryer according to claim 1 is characterized in that: The air inlet pipe (21) is provided with a second one-way valve (22), and the conduit (3) is provided with a third one-way valve (32) at a position close to the connector (31).

7. The novel dryer according to claim 1 is characterized in that: The bottom of the sealing cover (2) is fixedly connected with an insert ring (23), and the outer diameter of the insert ring (23) is equal to the inner diameter of the top of the drying cup (1).

8. The novel dryer according to claim 1 is characterized in that: The drying cup (1) and the sealing cover (2) are in a square shape.

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