Box cover structure of moisture meter

Abstract

The utility model provides a box cover structure of a moisture meter, which belongs to the technical field of moisture determination, and is characterized by comprising a box body, a cover body and an air pressure balance valve, the box body is a cylinder with an opening at the top, the cover body is a cylinder with an opening at the bottom, and the air pressure balance valve is arranged in the box body. The box body and the cover body form a hollow cylinder with a hollow interior, the box body and the cover body are rotationally connected through a hinge, and the other end of the hinge at the joint of the box body and the cover body is movably connected through a lock catch mechanism; an air pressure balance valve is arranged in the cover body, the air pressure balance valve is a circular sheet, is in close contact with the inner wall of the cover body and is used for balancing the air pressure difference between the box body and the interior of the cover body, and an opening is formed in the top of the cover body; according to the utility model, the problem that the moisture meter is damaged when working in a long-term air pressure difference environment can be solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of moisture measurement, and in particular relates to a box cover structure of a moisture meter. Background Art

[0002] A moisture meter is an instrument used to measure the moisture content in a sample. In various industries, such as food, pharmaceuticals, chemicals, and agriculture, moisture content is an important parameter that directly affects the quality, safety, and stability of the product. Therefore, moisture meters are widely used in various industries. However, when using a moisture meter in an environment with a large pressure difference for a long time, the pressure difference between the inside and outside of the box may cause damage to the instrument, affecting its accuracy and reliability.

[0003] At present, moisture meters on the market generally adopt a simple structural design, and there is no effective measure to balance the pressure difference. When the moisture meter works in a long-term pressure difference environment, the pressure difference between the inside and outside of the box will cause the sealing performance inside the instrument to decrease, thereby affecting the accuracy and reliability of the instrument. In addition, due to the lack of effective measures to balance the pressure difference, the instrument may also suffer mechanical damage, electrical failure and other problems during use, affecting its normal operation. Utility Model Content

[0004] In view of this, the utility model provides a box cover structure of a moisture meter, which can solve the problem that the moisture meter is damaged when working in a long-term pressure difference environment.

[0005] The utility model is achieved in this way:

[0006] The utility model provides a box cover structure of a moisture meter, which comprises a box body, a cover body, and an air pressure balance valve. The box body is a cylinder with an opening at the top, and the cover body is a cylinder with an opening at the bottom. The box body and the cover body form a hollow cylinder with a hollow interior. The box body and the cover body are rotatably connected by a hinge, and the other end of the hinge at the connection between the box body and the cover body is movably connected by a locking mechanism.

[0007] An air pressure balancing valve is arranged inside the cover body. The air pressure balancing valve is a circular piece, which is in close contact with the inner wall of the cover body and is used to balance the air pressure difference between the box body and the cover body. An opening is arranged on the top of the cover body.

[0008] The technical effect of the box cover structure of a moisture meter provided by the utility model is as follows: by setting an opening, the air pressure at the top of the air pressure balance valve is equal to the atmospheric pressure, thereby adjusting the up and down movement of the air pressure balance valve, adjusting the air pressure in the bottom space of the air pressure balance valve, and facilitating the opening of the cover.

[0009] Furthermore, a silicone strip is provided at the junction of the bottom of the cover body and the box body, and the silicone strip is used for sealing.

[0010] On the basis of the above technical solution, the box cover structure of a moisture meter of the utility model can also be improved as follows:

[0011] Among them, the outer sleeve of the air pressure balancing valve is provided with a silicone strip, the cross-section of the silicone strip is an isosceles triangle, the vertex of the triangle is located outside the air pressure balancing valve, facing the inner wall of the cover body, and the bottom of the triangle is provided with a depression adapted to the air pressure balancing valve.

[0012] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: by setting a silicone strip on the outside of the air pressure balancing valve, the gas exchange between the top and the bottom of the air pressure balancing valve is avoided, thereby breaking the sealed environment at the bottom of the air pressure balancing valve; by setting the shape of the silicone strip to an isosceles triangle, the contact between the silicone strip and the inner wall of the cover is reduced, thereby reducing the friction resistance when the air pressure balancing valve slides, so that the air pressure balancing valve can slide under a smaller air pressure difference, thereby making the air pressure above and below the air pressure balancing valve the same.

[0013] Furthermore, the width of the recess is equal to the thickness of the air pressure balance valve.

[0014] Furthermore, a limiting column is provided on the top of the air pressure balancing valve, and a through hole corresponding to the position of the limiting column is provided on the top of the cover body, and the radius of the through hole is adapted to the radius of the limiting column on the top of the air pressure balancing valve.

[0015] The beneficial effect of adopting the above-mentioned improvement scheme is as follows: by setting the limit column, it is avoided that the air pressure balance valve is tilted when moving, which causes the sealing environment inside the box to be destroyed and affects the measurement results.

[0016] Furthermore, there are multiple limiting columns.

[0017] Furthermore, the height of the limiting column is the same as the height of the air pressure balancing valve.

[0018] Furthermore, the angle of the triangle vertex is 10° to 20°.

[0019] Furthermore, the outer diameter of the silicone strip outside the air pressure balance valve is greater than the inner diameter of the cover body.

[0020] The beneficial effect of adopting the above-mentioned improvement scheme is: by setting the outer diameter of the silicone strip to be larger than the inner diameter of the cover body, it is avoided that the insufficient outer diameter of the silicone strip causes the inability to form a closed environment, thereby affecting the moisture determination.

[0021] Furthermore, the height of the cover is 0.5 to 1 times the height of the box.

[0022] The beneficial effect of adopting the above-mentioned improvement scheme is: by setting the height of the cover body to 0.5 to 1 times the height of the box body, it is ensured that the air pressure balance valve has enough space to move inside the cover body, thereby adjusting the air pressure difference inside the measuring instrument.

[0023] Furthermore, a sealing ring is provided at the junction between the bottom of the cover body and the box body, and the sealing ring is used for sealing.

[0024] Furthermore, the sealing ring is a hollow structure.

[0025] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: by providing a hollow structure, the contact area between the sealing ring and the box body and the cover body is increased, thereby improving air tightness.

[0026] Compared with the prior art, the beneficial effects of the box cover structure of the moisture meter provided by the utility model are:

[0027] The structure is simple, easy to manufacture and install. The box body and the cover body are connected by hinges, which is convenient for disassembly and maintenance. The other end of the hinge at the connection is movably connected by a locking mechanism, which enhances the stability of the connection;

[0028] The internal space is reasonably designed to facilitate moisture determination. The box and cover form a hollow cylinder with ample internal space, which is conducive to the placement and operation of samples;

[0029] The pressure balance valve is cleverly designed to effectively balance the internal pressure difference. The pressure balance valve is a circular piece that is in close contact with the inner wall of the cover to reduce the impact of the pressure difference on the measurement results. The silicone strip jacket design makes the pressure balance valve more stable and less prone to damage;

[0030] The opening design is convenient for operation and maintenance. There is an opening on the top of the cover, which is convenient for taking and installing samples, and is also conducive to the balance of internal air pressure;

[0031] Good safety performance. The cover is equipped with an air pressure balance valve to effectively prevent the influence of external air pressure on the measurement results, ensuring the accuracy of the measurement results. At the same time, the internal space of the cover is reasonably designed to avoid possible safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments of the utility model will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0033] Figure 1 It is a schematic diagram of the box cover structure of a moisture meter;

[0034] Figure 2 It is a cross-sectional view of a box cover structure of a moisture meter;

[0035] Figure 3 A schematic diagram of an air pressure balance valve of a box cover structure of a moisture meter;

[0036] Figure 4 A schematic diagram of a silicone strip of a box cover structure of a moisture meter;

[0037] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0038] 1. Box body; 2. Cover body; 3. Air pressure balance valve; 31. Limit column. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the implementation mode of the present invention clearer, the technical solution in the implementation mode of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the implementation mode of the present invention.

[0040] Embodiment 1

[0041] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, it is a first embodiment of the box cover structure of a moisture meter provided by the utility model. In this embodiment, it includes a box body 1, a cover body 2, and an air pressure balance valve 3. The box body 1 is a cylinder with an opening on the top, and the cover body 2 is a cylinder with an opening on the bottom. The box body 1 and the cover body 2 form a hollow cylinder with a hollow interior. The box body 1 and the cover body 2 are rotatably connected by a hinge, and the other end of the hinge at the connection between the box body 1 and the cover body 2 is movably connected by a locking mechanism;

[0042] An air pressure balancing valve 3 is provided inside the cover body 2. The air pressure balancing valve 3 is a circular piece that is in close contact with the inner wall of the cover body 2 and is used to balance the air pressure difference between the box body 1 and the cover body 2. An opening is provided on the top of the cover body 2.

[0043] Among them, in the above technical scheme, the outer sleeve of the air pressure balance valve 3 is provided with a silicone strip, the cross-section of the silicone strip is an isosceles triangle, the vertex of the triangle is located outside the air pressure balance valve 3, facing the inner wall of the cover body 2, and the bottom of the triangle is provided with a depression adapted to the air pressure balance valve 3.

[0044] Furthermore, in the above technical solution, a limiting column is provided on the top of the air pressure balancing valve 3, and a through hole corresponding to the position of the limiting column is provided on the top of the cover body 2, and the radius of the through hole is adapted to the radius of the limiting column on the top of the air pressure balancing valve 3.

[0045] Furthermore, in the above technical solution, there are multiple limiting columns.

[0046] Furthermore, in the above technical solution, the height of the limiting column is the same as the height of the air pressure balance valve 3 .

[0047] Furthermore, in the above technical solution, the angle of the triangle vertex is 10°.

[0048] Furthermore, in the above technical solution, the outer diameter of the silicone strip outside the air pressure balance valve 3 is larger than the inner diameter of the cover body 2 .

[0049] Furthermore, in the above technical solution, the height of the cover body 2 is 0.5 times the height of the box body 1 .

[0050] Furthermore, in the above technical solution, a sealing ring is provided at the junction between the bottom of the cover body 2 and the box body 1, and the sealing ring is used for sealing.

[0051] Furthermore, in the above technical solution, the sealing ring is a hollow structure.

[0052] Embodiment 2

[0053] like Figure 1 As shown, it is a second embodiment of the box cover structure of a moisture meter provided by the utility model. In this embodiment, it includes a box body 1, a cover body 2, and an air pressure balance valve 3. The box body 1 is a cylinder with an opening on the top, and the cover body 2 is a cylinder with an opening on the bottom. The box body 1 and the cover body 2 form a hollow cylinder with a hollow interior. The box body 1 and the cover body 2 are rotatably connected by a hinge, and the other end of the hinge at the connection between the box body 1 and the cover body 2 is movably connected by a locking mechanism;

[0054] An air pressure balancing valve 3 is provided inside the cover body 2. The air pressure balancing valve 3 is a circular piece that is in close contact with the inner wall of the cover body 2 and is used to balance the air pressure difference between the box body 1 and the cover body 2. An opening is provided on the top of the cover body 2.

[0055] Among them, in the above technical scheme, the outer sleeve of the air pressure balance valve 3 is provided with a silicone strip, the cross-section of the silicone strip is an isosceles triangle, the vertex of the triangle is located outside the air pressure balance valve 3, facing the inner wall of the cover body 2, and the bottom of the triangle is provided with a depression adapted to the air pressure balance valve 3.

[0056] Furthermore, in the above technical solution, a limiting column is provided on the top of the air pressure balancing valve 3, and a through hole corresponding to the position of the limiting column is provided on the top of the cover body 2, and the radius of the through hole is adapted to the radius of the limiting column on the top of the air pressure balancing valve 3.

[0057] Furthermore, in the above technical solution, there are multiple limiting columns.

[0058] Furthermore, in the above technical solution, the height of the limiting column is the same as the height of the air pressure balance valve 3 .

[0059] Furthermore, in the above technical solution, the angle of the triangle vertex is 20°.

[0060] Furthermore, in the above technical solution, the outer diameter of the silicone strip outside the air pressure balance valve 3 is larger than the inner diameter of the cover body 2 .

[0061] Furthermore, in the above technical solution, the height of the cover body 2 is 1 times the height of the box body 1 .

[0062] Furthermore, in the above technical solution, a sealing ring is provided at the junction between the bottom of the cover body 2 and the box body 1, and the sealing ring is used for sealing.

[0063] Furthermore, in the above technical solution, the sealing ring is a hollow structure.

[0064] Specifically, the principle of the utility model is: when in use, open the cover body 2, adjust the air pressure balance valve 3 to the middle position of the cover body 2, put the sample to be tested in the box body 1, close the cover body 2, close the locking mechanism, and perform moisture measurement; during the measurement process, the air pressure inside the measurement box changes, driving the air pressure balance valve 3 to move up and down inside the cover body 2 to balance the air pressure, ensuring that the air pressure inside the measurement box is the same as the atmospheric pressure; after the test is completed, open the locking mechanism, open the cover body 2, take out the sample to be tested and proceed to the subsequent steps.

Claims

1. A box cover structure of a moisture meter, characterized in that: The invention comprises a box body (1), a cover body (2), and an air pressure balance valve (3); the box body (1) is a cylinder with an opening at the top, the cover body (2) is a cylinder with an opening at the bottom, the box body (1) and the cover body (2) form a hollow cylinder with a hollow interior, the box body (1) and the cover body (2) are rotatably connected by a hinge, and the other end of the hinge at the connection between the box body (1) and the cover body (2) is movably connected by a locking mechanism; The cover body (2) is provided with an air pressure balancing valve (3) inside. The air pressure balancing valve (3) is a circular plate, which is in close contact with the inner wall of the cover body (2) and is used to balance the air pressure difference between the box body (1) and the inside of the cover body (2). The top of the cover body (2) is provided with an opening.

2. The box cover structure of a moisture meter according to claim 1, characterized in that: The air pressure balance valve (3) is covered with a silicone strip on the outside, and the cross-section of the silicone strip is an isosceles triangle. The top angle of the triangle is located outside the air pressure balance valve (3) and faces the inner wall of the cover body (2). The bottom of the triangle is provided with a depression adapted to the air pressure balance valve (3).

3. The box cover structure of a moisture meter according to claim 2, characterized in that: A limiting column is provided on the top of the air pressure balancing valve (3), and a through hole corresponding to the position of the limiting column is provided on the top of the cover body (2), and the radius of the through hole is adapted to the radius of the limiting column on the top of the air pressure balancing valve (3).

4. The box cover structure of a moisture meter according to claim 3, characterized in that: There are multiple limiting columns.

5. The box cover structure of the moisture meter according to claim 4, characterized in that: The height of the limiting column is the same as the height of the air pressure balance valve (3).

6. The box cover structure of the moisture meter according to claim 5, characterized in that: The angle of the triangle vertex is 10° to 20°.

7. The box cover structure of the moisture meter according to claim 6, characterized in that: The outer diameter of the silicone strip outside the air pressure balance valve (3) is greater than the inner diameter of the cover body (2).

8. The box cover structure of the moisture analyzer according to claim 7, characterized in that: The height of the cover body (2) is 0.5 to 1 times the height of the box body (1).

9. The box cover structure of the moisture analyzer according to claim 8, characterized in that: A sealing ring is provided at the junction between the bottom of the cover body (2) and the box body (1), and the sealing ring is used for sealing.

10. The box cover structure of the moisture analyzer according to claim 9, characterized in that: The sealing ring is a hollow structure.

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