Vacuum extraction device for detecting content of formaldehyde in clothes

Abstract

The utility model relates to the technical field of vacuum extraction devices, and discloses a vacuum extraction device for detecting the content of formaldehyde in clothes, which comprises a base plate and a vacuum extraction cylinder fixed on the upper end face of the base plate, the vacuum extraction cylinder is opened upwards, a support with a threaded seat is further fixed on the base plate, and the threaded seat is fixed on the support. The threaded rod is arranged in the threaded seat in a threaded connection mode, the pulling plug is fixedly arranged on the lower end face of the threaded rod, the pulling plug is inserted into the vacuum extraction cylinder in a sealed mode, when the pulling plug is pulled out, a vacuum state is rapidly formed in the vacuum extraction cylinder, and formaldehyde in clothes can be rapidly dissipated. The device is very convenient and convenient to carry, after clothes are put into the vacuum extraction cylinder, the threaded rod is rotated to exhaust air from the one-way exhaust valve, and then the rotating handle is reversely rotated to pull up the pull plug, so that the interior of the vacuum extraction cylinder quickly enters vacuum, formaldehyde can be dissociated from the clothes, and the detection accuracy degree of the formaldehyde detector is conveniently improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum extraction devices, in particular to a vacuum extraction device for detecting the formaldehyde content in clothes. Background Technique

[0002] Formaldehyde, also known as formic aldehyde, is colorless and irritating to human eyes, nose, etc. Its melting point is -92°C and its boiling point is -19.5°C. It is easily soluble in water and ethanol. The highest concentration of its aqueous solution can reach 55%, usually 40%, which is called formaldehyde water and commonly known as formalin. It has strong reducibility, especially in alkaline solutions, and its reduction ability is stronger. It can burn, and its vapor forms an explosive mixture with air, with an explosion limit of 7%-73% (by volume). The ignition point is about 300°C. It can be prepared by dehydrogenation or oxidation of methanol catalyzed by metals such as silver and copper, or separated from the oxidation products of hydrocarbons. It can be used as a raw material for phenolic resin, urea-formaldehyde resin, vinylon, hexamine, pentaerythritol, dyes, pesticides, disinfectants, etc. Industrial formaldehyde solution generally contains 37% formaldehyde and 15% methanol as a polymerization inhibitor, and its boiling point is 101°C. On October 27, 2017, in the carcinogen list published by the International Agency for Research on Cancer of the World Health Organization, formaldehyde was placed in the list of group 1 carcinogens. Newly decorated houses contain a large amount of formaldehyde gas, so the houses need to be left for a period of time and can only be occupied after the formaldehyde sampling test is qualified.

[0003] However, for the formaldehyde on clothes, a more accurate concentration measurement can be obtained only under negative pressure. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is: in order to overcome the above problems, a vacuum extraction device for detecting the formaldehyde content in clothes is provided, which solves the above problems.

[0005] The utility model solves its technical problems by adopting the following technical solutions:

[0006] A vacuum extraction device for detecting the formaldehyde content in clothes includes a chassis and a vacuum extraction cylinder fixed on the upper end surface of the chassis. The vacuum extraction cylinder is open upward. A bracket with a threaded seat is also fixed on the chassis. A threaded rod is threadedly connected in the threaded seat. A plug is fixed on the lower end surface of the threaded rod. The plug is hermetically inserted into the vacuum extraction cylinder. When the plug is pulled outwards, a vacuum state is quickly formed in the vacuum extraction cylinder, which is beneficial to the rapid dispersion of formaldehyde in the clothes.

[0007] Preferably, a one-way exhaust valve that penetrates downward is fixed at the bottom of the vacuum extraction cylinder for exhausting the air in the vacuum extraction cylinder to the outside.

[0008] Preferably, a through threaded connection seat is fixedly provided at the bottom of the vacuum extraction cylinder, and the connector of the formaldehyde detector for detection is threadedly connected to the threaded connection seat.

[0009] Preferably, at least two rubber sealing rings are provided at intervals up and down on the outer side wall of the plug, and the rubber sealing rings are in contact with the inner wall of the vacuum extraction cylinder to form a seal.

[0010] Preferably, in order to make the pulling of the plug more stable and labor-saving, a turning handle is fixedly provided on the upper end surface of the threaded rod.

[0011] Preferably, a pressure gauge is fixedly installed in the plug to monitor the pressure index in the vacuum extraction cylinder, and the display value of the pressure gauge can be directly observed from above.

[0012] The advantages and positive effects of the present utility model are: very convenient and easy to carry. After putting the clothes into the vacuum extraction cylinder, rotate the threaded rod to discharge the air from the one-way exhaust valve, and then rotate the turning handle in the reverse direction to pull up the plug, so that the vacuum extraction cylinder quickly enters a vacuum state, which is beneficial to the free release of formaldehyde from the clothes and is convenient to improve the detection accuracy of the formaldehyde detector. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is a schematic structural diagram of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The present utility model will now be further described in detail with reference to the drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0017] The following further details the embodiments of the present utility model with reference to the drawings:

[0018] Such as Figure 1-2As shown in the figure, a vacuum extraction device for detecting the formaldehyde content in clothes according to the utility model comprises a chassis 10 and a vacuum extraction cylinder 12 fixed on the upper end surface of the chassis 10. The vacuum extraction cylinder 12 is open upward. A bracket 11 with a threaded seat 15 is also fixed on the chassis 10. A threaded rod 16 is threadedly connected in the threaded seat 15. A plug 13 is fixed on the lower end surface of the threaded rod 16. The plug 13 is hermetically inserted into the vacuum extraction cylinder 12. When the plug 13 is pulled outwards, a vacuum state is quickly formed in the vacuum extraction cylinder 12, which is beneficial to the rapid release of formaldehyde in the clothes.

[0019] Preferably, a one-way exhaust valve 19 penetrating downward is fixed at the bottom of the vacuum extraction cylinder 12 for exhausting the air in the vacuum extraction cylinder 12 to the outside.

[0020] Preferably, a through threaded connection seat 20 is also fixed at the bottom of the vacuum extraction cylinder 12. The connector of the formaldehyde detector for detection is threadedly connected with the threaded connection seat 20.

[0021] Preferably, at least two rubber sealing rings 14 spaced up and down are arranged on the outer wall surface of the plug 13. The rubber sealing rings 14 are abutted against the inner wall of the vacuum extraction cylinder 12 to form a seal.

[0022] Preferably, in order to make the pulling of the plug 13 more stable and labor-saving, a turning handle 17 is fixed on the upper end surface of the threaded rod 16.

[0023] Preferably, a pressure gauge 18 is fixedly installed in the plug 13 for monitoring the pressure index in the vacuum extraction cylinder 12. The display value of the pressure gauge 18 can be directly observed from above.

[0024] It should be emphasized that the embodiments described in the present utility model are illustrative rather than restrictive. Therefore, the present utility model is not limited to the embodiments described in the specific embodiments. Any other embodiments obtained by those skilled in the art according to the technical solutions of the present utility model also belong to the scope of protection of the present utility model.

Claims

1. A vacuum extraction device for detecting formaldehyde content in clothes, comprising a chassis (10) and a vacuum extraction cylinder (12) fixed on the upper end surface of the chassis (10), characterized in that: The vacuum extraction cylinder (12) is open upward. A bracket (11) with a threaded seat (15) is fixedly provided on the chassis (10). A threaded rod (16) is connected with internal threads in the threaded seat (15). A plug (13) is fixedly provided on the lower end surface of the threaded rod (16). The plug (13) is hermetically inserted into the vacuum extraction cylinder (12). When the plug (13) is pulled outwards, a vacuum state is quickly formed in the vacuum extraction cylinder (12), which is beneficial to quickly dissipate formaldehyde in the clothes.

2. The vacuum extraction device for detecting formaldehyde content in clothing according to claim 1, wherein: A one-way exhaust valve (19) penetrating downward is fixedly provided at the bottom of the vacuum extraction cylinder (12) for exhausting the air in the vacuum extraction cylinder (12) to the outside.

3. The vacuum extraction device for detecting the formaldehyde content in clothes according to claim 2, characterized in that: A through threaded connection seat (20) is also fixedly provided at the bottom of the vacuum extraction cylinder (12). The connector of a formaldehyde detector for detection is threadedly connected with the threaded connection seat (20).

4. A vacuum extraction device for detecting formaldehyde content in clothing according to claim 3, characterized in that: At least two rubber sealing rings (14) spaced up and down are provided on the outer wall surface of the plug (13). The rubber sealing rings (14) abut against the inner wall of the vacuum extraction cylinder (12) to form a seal.

5. The vacuum extraction device for detecting the formaldehyde content in clothes according to claim 4, characterized in that: In order to make it more stable and labor-saving when pulling the plug (13), a turning handle (17) is fixedly provided on the upper end surface of the threaded rod (16).

6. A vacuum extraction device for detecting the formaldehyde content in clothes according to claim 5, characterized in that: A pressure gauge (18) is fixedly installed and embedded in the plug (13) for monitoring the pressure index in the vacuum extraction cylinder (12). The display value of the pressure gauge (18) can be directly observed from above.

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