Ammonia release concentration measuring device

Abstract

The utility model relates to the technical field of ammonia gas detection, and discloses an ammonia gas release concentration measuring device which comprises a box body, the box body comprises a box cover and a box shell, the box cover is provided with a gas inlet and a gas outlet, the ammonia gas release concentration measuring device further comprises a placing frame and a sealing cover, the placing frame is used for placing an external sample to be measured, and the box cover is provided with a through hole which enables the box shell to be communicated with the outside. The placing frame is detachably connected to the box cover and located in the through hole, and the sealing cover is rotationally connected with the through hole; the sealing cover can be connected with the placing rack or the box cover through rotation; when the sealing cover is connected with the placing frame, the sealing cover can move upwards to drive the placing frame to be separated from the box shell; when the sealing cover is connected with the box cover, the sealing cover can move upwards to drive the box cover and the placing frame to be separated from the box shell, a sample to be tested can be rapidly replaced through the sealing cover, the placing frame and the box cover, and when a sample with a small size is replaced, only the placing frame is detached from the box shell, so that the sample can be rapidly replaced. When a large-size sample is replaced, the placing frame and the box cover can be detached from the box shell.

Description

Technical Field

[0001] The utility model relates to the technical field of ammonia detection, in particular to an ammonia release concentration measuring device. Background Art

[0002] EVA foam material is a lightweight, soft and elastic foam material, which is often used in shoe materials. When used in shoe materials, additives are usually added to the EVA foam material. The additives can enhance the performance of the EVA foam material, improve comfort, increase anti-slip performance, resist UV rays, improve processing performance, etc. However, some additives contain amino components, which will cause the EVA foam material to release ammonia. Ammonia is an irritating gas and is harmful to the human body. Therefore, it is necessary to test the ammonia release concentration of the EVA foam material containing amino additives. However, the current ammonia release concentration detection instrument is not convenient for replacing the sample to be tested.

[0003] In the prior art, a utility model patent (CN215627989U) discloses a device for rapidly determining the ammonia release rate of aluminum ash slag when it comes into contact with water. The device comprises a cover, a rotary feeder, a magnetic stirrer, a thermometer, and an ammonia detector. A cover is movably mounted on the top of the cover, and the cover is fixed to the cover by a connector. The magnetic stirrer is disposed at the bottom of the cover, and a reactor is disposed inside the cover. A magnetic stirring rotor is disposed inside the reactor. The device is not convenient for replacing test samples.

[0004] Based on this, the technical problem to be solved in this case is: how to conveniently replace the sample to be tested. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides an ammonia release concentration measuring device. By rotating the sealing cover, the measuring device can choose to remove the placement rack alone from the box shell or remove the placement rack and the box cover from the box shell together. When it is necessary to replace a small-sized sample, the placement rack can be removed alone to directly replace the sample and then put it back into the box shell for testing; when it is necessary to replace a large-sized sample, the placement rack and the box cover can be removed from the box shell together to replace the sample and then put it back into the box shell for testing. This method is conducive to quickly replacing test samples and improving the efficiency of continuous testing.

[0006] The technical solution of the utility model is:

[0007] An ammonia release concentration measuring device includes a box body, which includes a box cover and a box shell. The box cover is provided with an air inlet and an exhaust port, and also includes a placement rack for placing external samples to be tested and a sealing cover. The box cover is provided with a through hole that connects the box shell with the outside world. The placement rack is detachably connected to the box cover and is located in the through hole. The sealing cover is rotatably connected to the placement rack or the box cover. When the sealing cover is connected to the placement rack, the sealing cover can move upward to drive the placement rack to separate from the box shell. When the sealing cover is connected to the box cover, the sealing cover can move upward to drive the box cover and the placement rack to separate from the box shell.

[0008] One of the above technical solutions of the utility model has at least one of the following advantages or beneficial effects:

[0009] The utility model can choose to remove the placing rack alone from the box shell or remove the placing rack and the box cover from the box shell together by rotating the sealing cover. When it is necessary to replace a small-sized sample, the placing rack can be removed alone to directly replace the sample and then put it back into the box shell for testing; when it is necessary to replace a large-sized sample, the placing rack and the box cover can be removed together from the box shell, the sample can be replaced and then put back into the box shell for testing. This method is conducive to quickly replacing the test sample and improves the efficiency of continuous testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a perspective view of Example 1 of the present utility model;

[0011] Figure 2 This is a cross-sectional view of Example 1 of the present utility model;

[0012] Figure 3 This is a three-dimensional diagram of the box cover of the utility model;

[0013] Figure 4 for Figure 3 Schematic diagram of the structure;

[0014] Figure 5 This is a three-dimensional diagram of the sealing cover of the utility model;

[0015] Figure 6 It is a three-dimensional diagram of the placement rack of the utility model.

[0016] Among them, the figure marks of each drawing are as follows: 1. box body; 2. placement rack; 3. sealing cover; 11. box cover; 12. box shell; 21. first card slot; 22. placement plate; 23. connecting plate; 24. top plate; 31. card block; 32. handle; 111. air inlet; 112. exhaust port; 113. second card slot; 114. limit block; 115. through hole; 1111, first valve; 1121, second valve. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] Example 1

[0019] See also Figure 1-6 , an ammonia release concentration measuring device, including a box body 1, the box body 1 includes a box cover 11 and a box shell 12, the box cover 11 is provided with an air inlet 111 and an exhaust port 112, and also includes a placement rack 2 for placing external samples to be tested and a sealing cover 3, the box cover 11 is provided with a through hole 115 that connects the box shell 12 with the outside world, the placement rack 2 is detachably connected to the box cover 11 and is located in the through hole 115, the sealing cover 3 is rotatably connected to the through hole 115; the sealing cover 3 can be connected to the placement rack 2 or the box cover 11 by rotation; when the sealing cover 3 is connected to the placement rack 2, the sealing cover 3 can move upward to drive the placement rack 2 to separate from the box shell 12; when the sealing cover 3 is connected to the box cover 11, the sealing cover 3 can move upward to drive the box cover 11 and the placement rack 2 to separate from the box shell 12.

[0020] In actual application, the staff places the test sample on the placement rack 2 and places it in the box shell 12 together with the placement rack 2. It should be noted that this embodiment uses the EVA foam material with added additives as an example. The test samples mentioned below are all EVA foam materials with added additives. When the test sample spontaneously releases ammonia, the ammonia concentration released by the test sample is tested by connecting the external ammonia measuring instrument to the exhaust port 112, and the measured data is used to determine whether the test sample is qualified. When the test sample needs to be replaced, the ammonia is discharged from the exhaust port 112 through the air inlet 111, and the test sample is replaced. When the test sample is small in size, the sealing cover 3 is lifted to drive the placement rack 2 upward, detached from the box shell 12, and the small-sized test sample is directly replaced and then put back into the box shell 12; when the test sample is large in size, the sealing cover 3 is rotated to connect the sealing cover 3 with the box cover 11, and then the sealing cover 3 is lifted to drive the placement rack 2 and the box cover 11 upward, and the large-sized test sample is directly replaced and then put into the box shell 12 for testing. In this way, the test sample can be flexibly replaced, and different replacement methods can be selected according to the size of the sample, which is convenient for the staff to replace the test sample and improves the efficiency of replacing the test sample.

[0021] Preferably, the sealing cover 3 is provided with symmetrically arranged card blocks 31, the placement rack 2 is provided with a first card slot 21 matching the card block 31, and the box cover 11 is provided with a second card slot 113 matching the card block 31. The first card slot 21 and the second card slot 113 are centrally symmetrically arranged, the first card slot 21 and the second card slot 113 are designed to be closed at one end, and the open ends of the card slots and the accommodating slots are docked to form a channel for the card block 31 to slide.

[0022] Through the above design, rotating the sealing cover 3 can change the position of the block 31, so that the block 31 can move in the channel formed by the first slot 21 and the second slot 113. Specifically, when the block 31 is located in the first slot 21, the upward movement of the sealing cover 3 can independently drive the placement rack 2 to detach from the box shell 12; when the block 31 is located in the second slot 113, the upward movement of the sealing cover 3 can drive the placement rack 2 and the box cover 11 to detach from the box shell 12 together, and the one-end closed design can prevent the block 31 from detaching from the channel.

[0023] More preferably, the box cover 11 is provided with symmetrically arranged limit blocks 114 , the limit blocks 114 are located at the bottom of the box cover 11 , and the limit blocks 114 are used to support the placement rack 2 .

[0024] In this embodiment, the limit block 114 can support the placement rack 2, and when the card block 31 is located in the second card slot 113, the upward movement of the sealing cover 3 can drive the box cover 11 to separate from the box shell 12, and drive the placement rack 2 to separate from the box shell 12 through the limit block 114. The structure of the limit block 114 in this embodiment is L-shaped, and this structure can support the bottom of the placement rack 2, but the upper part of the placement rack 2 can also be supported by the horizontal part of the L-shape.

[0025] More preferably, the placement rack 2 includes a placement plate 22 and connecting plates 23 symmetrically connected to both ends of the placement plate 22 . The placement plate 22 is used to place the sample to be tested. The placement rack 2 can be detachably connected to the sealing cover 3 through the connecting plates 23 .

[0026] In the above design, the staff places the test sample on the placement plate 22, and then places the placement rack 2 into the box shell 12 for testing. Specifically, the first card slot 21 is located on the connecting plate 23. When the card block 31 is located in the first card slot 21, the connecting plate 23 and the sealing cover 3 are connected; when the card block 31 is located outside the first card slot 21, the sealing cover 3 is detached from the connecting plate 23.

[0027] More preferably, a top plate 24 is provided on the top of the connecting plate 23 , and the top plate 24 and the sealing cover 3 form a sealing area matching the through hole 115 .

[0028] Through the above design, the sealing area can improve the sealing performance of the box shell 12, so that during testing, the sealing area seals the through hole 115, thereby improving the sealing performance of the box shell 12.

[0029] Furthermore, the air inlet 111 and the air outlet 112 are respectively provided with a first valve 1111 and a second valve 1121 for controlling on-off.

[0030] In this embodiment, the air inlet 111 and the exhaust port 112 are controlled by the first valve 1111 and the second valve 1121 respectively. By opening the first valve 1111 and the second valve 1121, the gas in the box shell 12 can be discharged from the exhaust port 112 by letting in external air; by only opening the second valve 1121, the ammonia concentration in the box shell 12 can be detected. The staff can open or close the first valve 1111 or the second valve 1121 according to different test stages to facilitate the staff's operation.

[0031] Furthermore, the sealing cover 3 is provided with a handle 32 .

[0032] Through the above design, the handle 32 can facilitate the staff to rotate the sealing cover 3 or lift or put down the sealing cover 3.

[0033] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An ammonia release concentration measuring device, comprising a box body, the box body comprising a box cover and a box shell, the box cover being provided with an air inlet and an exhaust port, characterized in that: The box also includes a placement rack for placing external samples to be tested and a sealing cover. The box cover is provided with a through hole that connects the box shell with the outside world. The placement rack is detachably connected to the box cover and is located in the through hole. The sealing cover is rotatably connected to the through hole. The sealing cover can be connected to the placement rack or the box cover by rotation; when the sealing cover is connected to the placement rack, the sealing cover can move upward to drive the placement rack to separate from the box shell; when the sealing cover is connected to the box cover, the sealing cover can move upward to drive the box cover and the placement rack to separate from the box shell.

2. The ammonia release concentration measuring device according to claim 1, characterized in that: The sealing cover is provided with symmetrically arranged card blocks, the placement rack is provided with a first card slot matching the card block, and the box cover is provided with a second card slot matching the card block. The first card slot and the second card slot are centrally symmetrically arranged, and the first card slot and the second card slot are designed to be closed at one end, and the card slot and the open end of the accommodating slot are docked to form a channel for the card block to slide.

3. The ammonia release concentration measuring device according to claim 1, characterized in that: The box cover is provided with symmetrically arranged limit blocks, the limit blocks are located at the bottom of the box cover, and the limit blocks are used to support the placement rack.

4. The ammonia release concentration measuring device according to claim 1, characterized in that: The placement rack includes a placement plate and connecting plates symmetrically connected to both ends of the placement plate. The placement plate is used to place samples to be tested. The placement rack can be detachably connected to the sealing cover through the connecting plates.

5. The ammonia release concentration measuring device according to claim 4, characterized in that: A top plate is provided on the top of the connecting plate, and the top plate and the sealing cover form a sealing area matching the through hole.

6. The ammonia release concentration measuring device according to claim 1, characterized in that: The air inlet and the air outlet are respectively provided with a first valve and a second valve for controlling on and off.

7. The ammonia release concentration measuring device according to claim 1, characterized in that: The sealing cover is provided with a handle.

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