Sample bottle for measuring content of formaldehyde in automotive interior material
Technical Field
The utility model relates to the field of sample testing tools, in particular to a sample bottle for determining the content of formaldehyde in an automobile interior material.
Background
In recent years, with the development of the automobile industry and the popularization of vehicles such as cars, the determination of the formaldehyde content of the materials in the automobiles is indispensable. In 1994, a related standard VDA275 has reported the measurement of formaldehyde content in automotive upholstery by suspending leather and fur samples in 1L polyethylene sample bottles filled with deionized water, heating at a constant temperature for a period of time to cool to room temperature, then derivatizing the aqueous formaldehyde solution in the bottles, and detecting the formaldehyde content in the samples by high performance liquid chromatography, which is still used in the current domestic automobile formaldehyde measurement.
Due to the various structures of parts in the vehicle, some small parts need to be spliced to reach the size of 4cm by 10cm required by the standard, and in the method, a hole is drilled at the position 1cm from the upper end of a sample to be hung on a hanging hook so as to be suspended in a sample bottle, such as a reagent bottle with the publication number of 'CN 208542222U', but the drilling of the samples of the small parts or the samples with irregular shapes has certain difficulty, so that the testing efficiency of the samples is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem that small parts or samples with irregular shapes need to be punched and hung in the prior art, and provides a sample bottle for measuring the content of formaldehyde in an automobile interior material, which does not need to punch a test part and hang the test part in the sample bottle.
In order to solve the technical problems, the utility model adopts the technical scheme that: a sample bottle for measuring the content of formaldehyde in automotive interior materials comprises an upper bottle body, a lower bottle body and a cover body; openings are formed in two ends of the upper bottle body, namely a first opening and a second opening respectively, a third opening is formed in one end of the lower bottle body, one side, provided with the second opening, of the upper bottle body is detachably connected with one side, provided with the third opening, of the lower bottle body, and the detachable connection can be a buckle connection or a threaded connection and the like; the cover body is used for covering the first opening, and the upper bottle body is close to the second opening and is provided with a separation net with a mesh.
In the technical scheme, the formaldehyde absorption liquid is poured into the lower bottle body, the upper bottle body is connected with the lower bottle body, and the first opening is covered by the cover body after a sample to be tested is put into the upper bottle body from the first opening. The sample to be tested is positioned on the separation net after entering the upper bottle body, and the meshes on the separation net can also ventilate due to the communicated state of the second opening and the third opening, so that the testing process is ensured to be carried out smoothly. After the test is finished, the upper bottle body and the lower bottle body are separated, the formaldehyde absorption liquid can be poured out from the lower bottle body, and the cover body is opened, so that the sample can be poured out from the upper bottle body.
Preferably, the upper bottle body is in threaded connection with the lower bottle body, and the cover body is in threaded connection with the first opening. The threaded connection has better air tightness, so that the sample bottle has good sealing performance in a test state.
Preferably, the cover body is a rubber plug for blocking the first opening. Directly block up first opening through the rubber buffer, the opening and the lid of lid close more conveniently.
Preferably, the separation net is made of metal materials, does not contain formaldehyde, and avoids influencing a test result.
Preferably, the depth of the lower bottle body is more than 4 cm. In the testing process, the sample needs to keep a distance of 4cm from the liquid level of the formaldehyde testing solution, and the liquid level of the formaldehyde testing solution can keep a distance of 4cm from the sample after the formaldehyde testing solution is filled because the depth of the lower bottle body is more than 4 cm.
Preferably, the lower bottle body is provided with liquid level scale marks. The liquid level height of the formaldehyde test solution can be known through the liquid level scale marks, so that the distance between the liquid level of the formaldehyde test solution and a sample can be rapidly known.
Preferably, the separation net is detachably connected with the upper bottle body. The replacement of the separation net is more convenient.
Preferably, the outer edge of the separation net is provided with an external thread, and the inner wall of the upper bottle body is provided with an internal thread in threaded connection with the separation net.
Preferably, a sealing ring is sleeved at the joint of the upper bottle body and the lower bottle body. After the upper bottle body and the lower bottle body are connected, the upper bottle body and the lower bottle body jointly extrude the sealing ring, and the sealing performance of the sample bottle is further improved.
Compared with the prior art, the utility model has the beneficial effects that: the sample can be directly put in and separate the net, need not to punch and hang on the sample bottle, reduces the preparation process before the test to the efficiency of software testing of sample has been improved.
Drawings
FIG. 1 is a schematic structural diagram of a sample bottle for measuring the formaldehyde content in an automotive interior material according to example 1 of the present invention;
FIG. 2 is a schematic structural view of an upper bottle body according to embodiment 1 of the present invention;
FIG. 3 is a schematic view of the structure of the lower bottle body according to example 1 of the present invention;
fig. 4 is a schematic structural view of an upper bottle body according to embodiment 4 of the present invention.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "long", "short", etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the drawings, it is only for convenience of description and simplicity of description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
The technical scheme of the utility model is further described in detail by the following specific embodiments in combination with the attached drawings:
example 1
Fig. 1 to 3 show an example 1 of a sample bottle for measuring the formaldehyde content in an automobile interior material, which comprises an upper body 1, a lower body 2 and a lid body 3; openings are respectively arranged at two ends of the upper bottle body 1 and are respectively a first opening 101 and a second opening 102, a third opening 201 is arranged at one end of the lower bottle body 2, and one side of the upper bottle body 1, which is provided with the second opening 102, is detachably connected with one side of the lower bottle body 2, which is provided with the third opening 201; the cover body 3 is used for covering the first opening 101, and the upper bottle body 1 is provided with a separation net 4 with meshes at a position close to the second opening 102.
Preferably, upper bottle body 1 and lower bottle body 2 threaded connection, lid 3 and first opening 101 threaded connection, in this embodiment, upper bottle body 1 is provided with the external screw thread, and lower bottle body 2 is provided with the internal screw thread. The threaded connection has better air tightness, so that the sample bottle has good sealing performance in a test state.
Preferably, the separation net 4 is made of metal, and does not contain formaldehyde, so that the test result is prevented from being influenced.
Preferably, the lower body 2 has a depth greater than 4 cm. In the testing process, the sample needs to keep a distance of 4cm from the liquid level of the formaldehyde testing solution, and the liquid level of the formaldehyde testing solution can keep a distance of 4cm from the sample after the formaldehyde testing solution is filled because the depth of the lower bottle body 2 is more than 4 cm.
Preferably, the lower bottle body 2 is provided with liquid level scale marks. The liquid level height of the formaldehyde test solution can be known through the liquid level scale marks, so that the distance between the liquid level of the formaldehyde test solution and a sample can be rapidly known.
The working principle or working process of the embodiment is as follows: pouring formaldehyde absorption liquid into the lower bottle body 2, connecting the upper bottle body 1 with the lower bottle body 2, putting a sample to be tested into the upper bottle body 1 from the first opening 101, and covering the first opening 101 with the cover body 3. After entering the upper bottle body 1, a sample to be tested is positioned on the separation net 4, and because the second opening 102 and the third opening 201 are in a communicated state, meshes on the separation net 4 can also ventilate, so that the testing process is ensured to be smoothly carried out. After the test is finished, the upper bottle body 1 is separated from the lower bottle body 2, the formaldehyde absorption liquid can be poured out from the lower bottle body 2, and the cover body 3 is opened, so that the sample can be poured out from the upper bottle body 1.
The beneficial effects of this embodiment: the sample can be directly put in and separate net 4, need not to punch and hang on the sample bottle, reduces the preparation process before the test to the efficiency of software testing of sample has been improved.
Example 2
Example 2 of a sample bottle for measuring the formaldehyde content in an automobile interior material is different from example 1 in that the lid body 3 is a rubber stopper for blocking the first opening 101. Directly block up first opening 101 through the rubber buffer, the opening and the lid of lid 3 close more conveniently.
The remaining features and operating principle of this embodiment are consistent with embodiment 1.
Example 3
Example 3 of a sample bottle for measuring the formaldehyde content in an automobile interior material is different from example 1 in that a partition net 4 is detachably attached to an upper body 1. The replacement of the separation net 4 is more convenient. Specifically, the outer edge of the separation net 4 is provided with an external thread, and the inner wall of the upper bottle body 1 is provided with an internal thread connected with the separation net 4 through the thread.
The remaining features and operating principle of this embodiment are consistent with embodiment 1.
Example 4
Example 4 of a sample bottle for measuring the content of formaldehyde in an automobile interior material is different from example 1 in that, as shown in fig. 4, a seal ring 103 is fitted over a joint between an upper body 1 and a lower body 2, the seal ring is fitted over an external thread of the upper body 1, and after the upper body 1 and the lower body 2 are joined, the upper body 1 and the lower body 2 press the seal ring together, thereby further improving the sealing property of the sample bottle. In order to further provide the sealing property of the sample bottle, a seal ring against which the lid 3 abuts may be provided at the first opening 101 of the upper body 1.
The remaining features and operating principle of this embodiment are consistent with embodiment 1.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.