Formaldehyde detection device based on spectrophotometric method

Abstract

The utility model relates to the technical field of formaldehyde detection, and discloses a formaldehyde detection device based on spectrophotometry, which comprises a detection machine, a detection screen and a control key are arranged at the upper end of the detection machine, a connecting seat is arranged on the right side of the detection machine, and a lifting rope is arranged on the outer side of the connecting seat. According to the formaldehyde detection device based on the spectrophotometric method, during detection, a formaldehyde reagent sheet is placed on a placement groove, after a top cover is closed, a spring I pushes a pressing sheet until the formaldehyde reagent sheet is tightly pressed on the placement groove, the stability during detection is improved, and in the top cover closing process, an inclined surface of an insertion block is in contact with a detection machine, so that the detection efficiency is improved. When the top cover needs to be opened after detection is completed, the pressing block is pinched to enable the insertion block to be separated from the limiting groove, the first spring rebounds to push the top cover to move upwards, and therefore the top cover can be conveniently opened. The structure is simple.

Description

Technical Field

[0001] The utility model relates to the technical field of formaldehyde detection, in particular to a formaldehyde detection device based on spectrophotometry. Background Technique

[0002] Formaldehyde is a harmful gas. Especially in newly decorated houses, due to the release of formaldehyde from building materials, coatings, plywood, etc., it may pose potential hazards to human health. Spectrophotometry is a commonly used formaldehyde detection method. The formaldehyde absorption solution is placed in an air sampler. By absorbing formaldehyde in the gas sample, the reaction solution after sampling is subjected to spectrophotometric analysis to measure the absorbance of formaldehyde, and then the concentration of formaldehyde is calculated.

[0003] Chinese Utility Model Patent Publication No.: CN 219016074 U, discloses: a formaldehyde detection device based on spectrophotometry. In this formaldehyde detection device based on spectrophotometry, through the set positioning mechanism, it enables the staff to quickly clamp and fix the test tube each time during detection. Under the condition of ensuring the stability of the test tube during shaking, it also enables the staff to quickly position and remove the test tube. And the set shaking mechanism enables the test tube to shake back and forth, so that the color reagent and the reaction solution in the test tube can react quickly, thereby reducing the time required for the reaction and improving the efficiency of formaldehyde detection. However, for this formaldehyde detection device based on spectrophotometry, the volume of the device is relatively large, and the portability is poor, which is not conducive to carrying and using. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide a formaldehyde detection device based on spectrophotometry, which can effectively solve the problems in the prior art.

[0005] The technical solution adopted by the utility model is: a formaldehyde detection device based on spectrophotometry, including a detector. A detection screen and control buttons are arranged at the upper end of the detector. A connection seat is arranged on the right side of the detector. A hanging rope is arranged on the outer side of the connection seat. A detection slot is arranged at the upper end of the detector. A placement slot is arranged at the upper end of the detection slot. Limiting slots are opened on both sides of the detection slot. A pressing cover assembly is arranged at the upper end of the detector. A protection assembly is arranged on the outer side of the detector;

[0006] The pressing cover assembly includes a top cover, a circular groove, a first spring, a pressing piece, a groove, an insertion block, a pressing block, a second spring and a dial. A circular groove is opened at the bottom of the top cover. The first spring is fixedly connected to the lower end of the circular groove. The pressing piece is fixedly connected to the lower end of the first spring. Grooves are opened on both sides of the top cover. The insertion block is arranged inside the groove. The pressing block is arranged at the upper end of the insertion block. The second spring is fixedly connected to the inner side of the insertion block. The dial is fixedly connected to the front end of the top cover.

[0007] Preferably, the suspension rope is tied to the connection seat, and the top cover is rotatably connected to the detector.

[0008] Through the above technical solution, a suspension rope is provided. When carrying, the suspension rope is put on the wrist to prevent dropping and facilitate carrying.

[0009] Preferably, the top cover is adapted to the detection groove, and the circular groove is adapted to the pressing piece.

[0010] Through the above technical solution, a circular groove and a pressing piece are provided. During detection, the formaldehyde reagent tablet is placed on the placement groove. After the top cover is closed, the spring I pushes the pressing piece until the formaldehyde reagent tablet is tightly pressed on the placement groove, improving the stability during detection.

[0011] Preferably, the insertion block and the pressing block are both slidably connected to the groove, and the width of the pressing block is greater than that of the insertion block.

[0012] Through the above technical solution, an insertion block and a pressing block are provided. During the closing process of the top cover, the inclined surface of the insertion block contacts the detector. After being squeezed, the insertion block moves inward along the groove, and the spring II is compressed until the insertion block corresponds to the limiting groove. Then the spring II rebounds to push the insertion block into the limiting groove to lock the top cover and the detector.

[0013] Preferably, the lower end of the insertion block is provided with an inclined surface, and the insertion block is adapted to the limiting groove.

[0014] Through the above technical solution, when the top cover needs to be opened after detection, pinch the pressing block to separate the insertion block from the limiting groove. Then the spring I rebounds to push the top cover upward, facilitating the opening of the top cover.

[0015] Preferably, the protection component includes a protection sleeve, an anti-slip pad and a handle. The anti-slip pads are fixedly connected to both sides and the front end of the protection sleeve, and the handle is fixedly connected to the left side of the protection sleeve.

[0016] Through the above technical solution, a protection component is provided. The protection component is sleeved outside the detector to provide a protection effect and prevent the detector from being damaged due to dropping.

[0017] Preferably, the protection sleeve is sleeved on the detector, and both the protection sleeve and the anti-slip pad are made of silicone rubber. The surface of the anti-slip pad is provided with anti-slip cones in a quadrangular pyramid shape.

[0018] Through the above technical solution, the surface of the anti-slip pad is provided with anti-slip cones in a quadrangular pyramid shape, so the anti-slip effect is good. Both the protection sleeve and the anti-slip pad are made of silicone rubber, with a comfortable touch. When holding the detector, put the hand through the handle for stable holding.

[0019] Compared with the prior art, the present utility model provides a formaldehyde detection device based on spectrophotometry, having the following beneficial effects:

[0020] 1. The formaldehyde detection device based on spectrophotometry is provided with a suspension rope. When carrying it, the suspension rope is put on the wrist to prevent it from slipping out of the hand, which is convenient for carrying. A protection component is provided and sleeved outside the detector to provide a protection effect and avoid damage caused by the detector falling. The surface of the anti-slip pad is provided with anti-slip cones in the shape of quadrangular pyramids, and the anti-slip effect is good. Both the protective sleeve and the anti-slip pad are made of silicone rubber, with a comfortable touch. When holding the detector, put the hand through the handle, and the holding is stable. The device has a small volume and is convenient for carrying.

[0021] 2. The formaldehyde detection device based on spectrophotometry is provided with a circular groove and a pressing piece. When detecting, place the formaldehyde reagent tablet on the placement groove. After closing the top cover, the spring I pushes the pressing piece until the formaldehyde reagent tablet is tightly pressed on the placement groove, improving the stability during detection. During the closing process of the top cover, the inclined surface of the insertion block contacts the detector. After being squeezed, the insertion block moves inward along the groove, and the spring II is compressed until the insertion block corresponds to the limit groove. Then the spring II rebounds and pushes the insertion block into the limit groove to lock the top cover and the detector. When it is necessary to open the top cover after the detection is completed, pinch the pressing block to separate the insertion block from the limit groove, and the spring I rebounds to push the top cover upward, which is convenient for opening the top cover. The structure is simple and the fixation is firm. Brief Description of the Drawings

[0022] Figure 1 Schematic three-dimensional structure of the present utility model Figure 1 ;

[0023] Figure 2 Schematic three-dimensional structure of the present utility model Figure 2 ;

[0024] Figure 3 Schematic diagram of the disassembled structure of the detector and the protection component of the present utility model;

[0025] Figure 4 Schematic enlarged structure diagram of the detector of the present utility model;

[0026] Figure 5 Schematic structure diagram of the present utility model in the open state of the gland assembly;

[0027] Figure 6 Schematic disassembled structure diagram of the gland assembly of the present utility model.

[0028] Wherein: 1. Detector; 2. Detection screen; 3. Control button; 4. Connection seat; 5. Suspension rope; 6. Detection groove; 7. Placement groove; 8. Limit groove; 9. Gland assembly; 901. Top cover; 902. Circular groove; 903. Spring I; 904. Pressing piece; 905. Groove; 906. Insertion block; 907. Pressing block; 908. Spring II; 909. Dial; 10. Protection component; 1001. Protective sleeve; 1002. Anti-slip pad; 1003. Handle. Detailed Description of the Embodiment

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Embodiment 1: Figures 1-6 As shown, the present invention provides a formaldehyde detection device based on spectrophotometry, including a detection machine 1, a detection screen 2 and a control button 3 are arranged on the upper end of the detection machine 1, a connecting seat 4 is arranged on the right side of the detection machine 1, a hanging rope 5 is arranged on the outer side of the connecting seat 4, a detection slot 6 is arranged on the upper end of the detection machine 1, a placement slot 7 is arranged on the upper end of the detection slot 6, and limiting slots 8 are provided on both sides of the detection slot 6, a pressure cover assembly 9 is arranged on the upper end of the detection machine 1, and a protective assembly 10 is arranged on the outer side of the detection machine 1;

[0031] The pressure cover assembly 9 includes a top cover 901, a circular groove 902, a spring 1 903, a pressure piece 904, a groove 905, an insert block 906, a push block 907, a spring 2 908 and a paddle 909. A circular groove 902 is provided at the bottom of the top cover 901, a spring 1 903 is fixedly connected to the lower end of the circular groove 902, a pressure piece 904 is fixedly connected to the lower end of the spring 1 903, grooves 905 are provided on both sides of the top cover 901, an insert block 906 is arranged inside the groove 905, a push block 907 is arranged on the upper end of the insert block 906, a spring 2 908 is fixedly connected to the inner side of the insert block 906, and a paddle 909 is fixedly connected to the front end of the top cover 901.

[0032] Specifically, the hanging rope 5 is connected to the connecting seat 4 by binding, and the top cover 901 is connected to the detection machine 1 by rotation. The advantage is that the hanging rope 5 is provided, and the hanging rope 5 is put on the wrist when carrying to prevent it from slipping out of the hand, which is convenient to carry.

[0033] Specifically, the top cover 901 is matched with the detection groove 6, and the circular groove 902 is matched with the pressing piece 904. The advantage is that the circular groove 902 and the pressing piece 904 are provided, and when testing, the formaldehyde reagent sheet is placed on the placement groove 7, and after the top cover 901 is closed, the spring 903 pushes the pressing piece 904 until the formaldehyde reagent sheet is pressed tightly on the placement groove 7, thereby improving the stability during testing.

[0034] Specifically, the insertion block 906 and the pressing block 907 are both slidably connected to the groove 905, and the width of the pressing block 907 is greater than that of the insertion block 906. The advantage is that the insertion block 906 and the pressing block 907 are provided. During the closing process of the top cover 901, the inclined surface of the insertion block 906 contacts the detector 1. After being squeezed, the insertion block 906 moves inward along the groove 905, and the second spring 908 is compressed until the insertion block 906 corresponds to the limiting groove 8. Then the second spring 908 rebounds to push the insertion block 906 into the limiting groove 8 to lock the top cover 901 and the detector 1.

[0035] Embodiment 2: As Figures 2-6 shown, as an improvement to the previous embodiment.

[0036] Specifically, an inclined surface is provided at the lower end of the insertion block 906, and the insertion block 906 is adapted to the limiting groove 8. The advantage is that when it is necessary to open the top cover 901 after the detection is completed, the pressing block 907 is pinched to separate the insertion block 906 from the limiting groove 8, and the first spring 903 rebounds to push the top cover 901 upward, facilitating the opening of the top cover 901.

[0037] Specifically, the protection component 10 includes a protective sleeve 1001, an anti-slip pad 1002 and a handle 1003. The anti-slip pads 1002 are fixedly connected to both sides and the front end of the protective sleeve 1001, and the handle 1003 is fixedly connected to the left side of the protective sleeve 1001. The advantage is that the protection component 10 is provided. The protection component 10 is sleeved outside the detector 1 to provide a protection effect and prevent the detector 1 from being damaged due to falling.

[0038] Specifically, the protective sleeve 1001 is sleeved on the detector 1, and both the protective sleeve 1001 and the anti-slip pad 1002 are made of silicone rubber. The anti-slip cones in the shape of quadrangular pyramids are provided on the surface of the anti-slip pad 1002. The advantage is that the anti-slip cones in the shape of quadrangular pyramids are provided on the surface of the anti-slip pad 1002, so the anti-slip effect is good. Both the protective sleeve 1001 and the anti-slip pad 1002 are made of silicone rubber, and the touch is comfortable. When holding the detector 1, the hand passes through the handle 1003, and the holding is stable.

[0039] Working principle: When in use, the formaldehyde reagent tablet is placed on the placement groove 7. During the closing process of the top cover 901, the inclined surface of the insertion block 906 contacts the detector 1. After being squeezed, the insertion block 906 moves inward along the groove 905, compressing the second spring 908 until the insertion block 906 corresponds to the limit groove 8. Then, the second spring 908 rebounds to push the insertion block 906 into the limit groove 8, locking the top cover 901 and the detector 1. After closing the top cover 901, the first spring 903 pushes the pressing piece 904 until the formaldehyde reagent tablet is tightly pressed on the placement groove 7, improving the stability during detection. When the top cover 901 needs to be opened after the detection is completed, pinch the pressing block 907 to separate the insertion block 906 from the limit groove 8. The first spring 903 rebounds to push the top cover 901 upward, facilitating the opening of the top cover 901. A hanging rope 5 is provided. When carrying, put the hanging rope 5 around the wrist to prevent dropping and facilitate carrying. A protection component 10 is provided. Put the protection component 10 on the outside of the detector 1 to provide a protection effect and avoid damage caused by the detector 1 falling. The anti-slip pad 1002 is provided with anti-slip cones in the shape of quadrangular pyramids, having good anti-slip effect. Both the protective sleeve 1001 and the anti-slip pad 1002 are made of silicone rubber, with a comfortable touch. When holding the detector 1, pass the hand through the handle 1003 for stable holding.

[0040] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A formaldehyde detection device based on spectrophotometry, comprising a detector (1), characterized in that: The upper end of the detection machine (1) is provided with a detection screen (2) and a control button (3); the right side of the detection machine (1) is provided with a connection seat (4); the outer side of the connection seat (4) is provided with a suspension rope (5); the upper end of the detection machine (1) is provided with a detection slot (6); the upper end of the detection slot (6) is provided with a placement slot (7); both sides of the detection slot (6) are provided with limit slots (8); the upper end of the detection machine (1) is provided with a pressure cover assembly (9); the outer side of the detection machine (1) is provided with a protective assembly (10); The pressure cover assembly (9) comprises a top cover (901), a circular groove (902), a spring 1 (903), a pressing piece (904), a groove (905), an insert block (906), a pressing block (907), a spring 2 (908) and a paddle (909). The top cover (901) has a circular groove (902) at the bottom, the circular groove (902) is fixedly connected to the spring 1 (903) at the lower end, the spring 1 (903) is fixedly connected to the pressing piece (904) at the lower end, grooves (905) are provided on both sides of the top cover (901), an insert block (906) is arranged inside the groove (905), a pressing block (907) is arranged at the upper end of the insert block (906), the insert block (906) is fixedly connected to the inner side of the spring 2 (908), and the front end of the top cover (901) is fixedly connected to the paddle (909).

2. The formaldehyde detection device based on spectrophotometry according to claim 1, characterized in that: The suspension rope (5) and the connecting seat (4) are connected by binding, and the top cover (901) and the detection machine (1) are connected by rotation.

3. The formaldehyde detection device based on spectrophotometry according to claim 1, characterized in that: The top cover (901) is matched with the detection groove (6), and the circular groove (902) is matched with the pressing sheet (904).

4. The formaldehyde detection device based on spectrophotometry according to claim 1, wherein: The inserting block (906) and the pressing block (907) are both slidably connected to the groove (905), and the width of the pressing block (907) is greater than the width of the inserting block (906).

5. The formaldehyde detection device based on spectrophotometry according to claim 1, characterized in that: The lower end of the insert block (906) is provided with an inclined surface, and the insert block (906) is adapted to the limiting groove (8).

6. The formaldehyde detection device based on spectrophotometry according to claim 1, characterized in that: The protection assembly (10) comprises a protection cover (1001), an anti-skid pad (1002) and a handle (1003); the anti-skid pads (1002) are fixedly connected to both sides and the front end of the protection cover (1001); and the handle (1003) is fixedly connected to the left side of the protection cover (1001).

7. The formaldehyde detection device based on spectrophotometry according to claim 6, characterized in that: The protective cover (1001) is connected to the detection machine (1) by sleeve connection. The protective cover (1001) and the anti-skid pad (1002) are both made of silicone rubber. The surface of the anti-skid pad (1002) is provided with a quadrangular pyramid-shaped anti-skid cone.

Images