阅读说明：本技术 一种室内空气中甲醛释放量测试箱及其检测方法 (Testing box for formaldehyde emission in indoor air and detection method thereof ) 是由 徐雅聪 唐苏苏 于 2021-09-29 设计创作，主要内容包括：本申请涉及一种室内空气中甲醛释放量测试箱,涉及甲醛释放量检测技术领域；其包括箱体,所述箱体的内部开设有容纳腔,所述容纳腔的内部设置有隔板,所述隔板的上表面对称设置有支撑组件,相邻所述支撑组件之间设置有第一驱动件,用于调节相邻支撑组件之间的距离；本申请具有提高检测结果的准确性的效果。(The application relates to a test box for formaldehyde emission in indoor air, relating to the technical field of formaldehyde emission detection; the box body is internally provided with an accommodating cavity, a partition plate is arranged in the accommodating cavity, the upper surface of the partition plate is symmetrically provided with support assemblies, and a first driving piece is arranged between every two adjacent support assemblies and used for adjusting the distance between every two adjacent support assemblies; the method and the device have the effect of improving the accuracy of the detection result.)

1. The utility model provides a formaldehyde emission test box in indoor air, includes box (1), the inside of box (1) has been seted up and has been held chamber (11), the inside that holds chamber (11) is provided with baffle (2), its characterized in that: the upper surface symmetry of baffle (2) is provided with supporting component (3), and is adjacent be provided with first driving piece (4) between supporting component (3) for adjust the distance between adjacent supporting component (3).

2. The box of claim 1, wherein the box comprises: supporting component (3) are including butt joint pole (31), butt joint pole (32) and second drive piece (33), butt joint pole (31) set up in the upside of baffle (2), second drive piece (33) are used for linking to each other butt joint pole (32) and butt joint pole (31), second drive piece (33) are including connecting rod (331), installation pole (332) and regulation pipe (333), connecting rod (331) fixed connection is in the lateral wall of butt joint pole (31), installation pole (332) fixed connection is in the lateral wall of butt joint pole (32), the inner wall fixedly connected with adjustable ring (3331) of regulation pipe (333), set up mounting groove (3321) that supply to adjust ring (3331) to inlay on installation pole (332), the one end threaded connection of butt joint pole (32) is kept away from to regulation pipe (333) is on butt joint pole (31).

3. The box of claim 1, wherein the box comprises: the first driving part (4) comprises two sliding blocks (41), a fixed rod (42), a rotating rod (43) and a rotating assembly (44), the two sliding blocks (41) are fixedly connected to one side, close to the partition board (2), of the abutting rod (31) matched with the sliding blocks, the two sliding blocks (41) are sleeved on the fixed rod (42), a fixing groove (21) is formed in the partition plate (2), the fixing rod (42) is fixedly connected to the inside of the fixing groove (21), the rotating rod (43) is rotatably connected inside the fixing groove (21), both ends of the rotating rod (43) are provided with thread grooves (431), the turning directions of the thread grooves (431) at the two ends of the rotating rod (43) are opposite, one side of each of the two sliding blocks (41) is provided with a thread convex block (411) which is matched with the corresponding thread groove (431) in the turning direction, the rotating assembly (44) is used for driving the rotating rod (43) to rotate.

4. A box for testing the amount of formaldehyde released from indoor air according to claim 3, wherein: the rotating assembly (44) comprises a worm wheel (441) and a worm (442), the worm wheel (441) is fixedly sleeved on the rotating rod (43), the worm (442) and the worm wheel (441) are matched with each other, and a rotating hole (22) for the worm (442) to be embedded is formed in the side wall of the partition plate (2).

5. A test box for formaldehyde emission in room air as claimed in claim 2, characterized in that: the supporting plates (5) are fixedly connected to the sides, close to each other, of the abutting rods (31) and the abutting rods (32).

6. A test box for formaldehyde emission in indoor air according to claim 5, characterized in that: the side wall of the supporting plate (5) is fixedly connected with a flexible pad (51).

7. The box of claim 1, wherein the box comprises: the two sides of the inner wall of the accommodating cavity (11) are fixedly connected with auxiliary plates (6), the two sides of the partition plate (2) are fixedly connected with moving blocks (23), and moving holes (61) for the moving blocks (23) to slide are formed in the side walls of the two auxiliary plates (6).

8. A test box for formaldehyde emission in indoor air according to claim 7, characterized in that: box (1) has seted up chucking groove (12) in the inner wall that holds chamber (11), the inside in chucking groove (12) is provided with chucking pole (7), chucking pole (7) are including inserted bar (71) and fixed connection holding pole (72) in inserted bar (71) one end, the lateral wall of baffle (2) is seted up and is supplied inserted bar (71) to keep away from the one end of holding pole (72) and insert first slot (24) and second slot (25) of establishing, one side fixed connection elastic component (73) of baffle (2) are kept away from in inserted bar (71), the inner wall of one end fixed connection in chucking groove (12) of inserted bar (71) is kept away from in elastic component (73).

9. A test box for formaldehyde emission in indoor air according to claim 8, characterized in that: the lateral wall of holding pole (72) rotates and is connected with fastening rod (721), box (1) is in the inner wall that holds chamber (11) seted up and is supplied fastening rod (721) to inlay fastening groove (13) of establishing, the inner wall integrated into one piece of fastening groove (13) has fastening lug (131) that are used for with fastening rod (721) interference fit.

10. A detection method of a test box for formaldehyde emission in indoor air is characterized in that: the method comprises the following steps:

holding the partition plate (2), and moving a moving block (23) on the side wall of the partition plate (2) along the inside of the moving hole (61) so that a part of the partition plate (2) is separated from the inside of the accommodating cavity (11);

the distance between the two supporting assemblies (3) is adjusted through the first driving piece (4), and the distance between the abutting rod (31) and the abutting rod (32) is adjusted through the second driving piece (33), so that an article to be detected can be placed on the supporting assemblies (3);

placing an article to be detected on a flexible pad (51) on a support plate (5) so that the article to be detected and one side of the flexible pad (51) close to each other are abutted;

the partition board (2) is held, and the moving block (23) on the side wall of the partition board (2) moves along the inside of the moving hole (61), so that the partition board (2) is embedded in the accommodating cavity (11).

Technical Field

The application relates to the technical field of formaldehyde emission detection, in particular to a formaldehyde emission testing box in indoor air and a detection method thereof.

Background

The furniture, the plate and other products contacted with the human body can volatilize substances such as formaldehyde and the like harmful to the human body, and particularly, the accumulated concentration is higher in rooms and vehicles with dense product placement and closed spaces, so that the harm to the health of the human body is larger. The formaldehyde emission test box is used for testing and evaluating the emission of harmful substances in products such as furniture, building materials and the like.

Chinese patent with publication number CN209842437U discloses a climate box for testing formaldehyde emission, which comprises a box body, a chamber is defined in the box body, at least one partition plate is arranged in the chamber, a sampling hole, an air inlet hole and an air guide hole which are communicated with the chamber are arranged on the box body, and the chamber comprises an accommodating cavity and a mounting cavity; the door body is movably connected with the box body; a controller, a fan and a heat exchanger are arranged in the mounting cavity; a water circulation system is arranged in the installation cavity; the accommodating cavity is internally provided with a heater and a flowmeter, and the accommodating cavity is internally provided with a temperature sensor and a humidity sensor at intervals; when the device is used, indoor climate and environmental conditions can be simulated, and the testing precision and efficiency of the formaldehyde emission are improved.

To the correlation technique among the above-mentioned, the inventor thinks that the staff treats the article that detects and examines the time measuring, will treat that the article that detects is placed on the baffle, treats one side and the baffle butt of article this moment to make the article that treats expose the area of waiting to detect in holding the intracavity air less, cause the influence to the result of detection easily.

Disclosure of Invention

In order to improve the accuracy of testing result, this application provides a formaldehyde emission test box in indoor air and detection method thereof.

First aspect, the application provides a formaldehyde emission test box in indoor air adopts following technical scheme:

the utility model provides a formaldehyde emission volume test box in indoor air, includes the box, the inside of box has been seted up and has been held the chamber, the inside that holds the chamber is provided with the baffle, the upper surface symmetry of baffle is provided with supporting component, and is adjacent be provided with first driving piece between the supporting component for adjust the distance between the adjacent supporting component.

Through adopting above-mentioned technical scheme, the article that will wait to detect is placed on supporting component to the article that treats the detection supports, and the article that waits to detect this moment and supporting component's area of contact is less, so that the article that waits to detect can expose in the air that holds the intracavity more, thereby has improved the accuracy of testing result.

Optionally, the supporting component includes butt joint pole, butt joint pole and second driving piece, the butt joint pole sets up in the upside of baffle, the second driving piece is used for linking to each other butt joint pole and butt joint pole, the second driving piece includes connecting rod, installation pole and control tube, connecting rod fixed connection is in the lateral wall of butt joint pole, installation pole fixed connection is in the lateral wall of butt joint pole, the inner wall fixedly connected with adjustable ring of control tube, set up the mounting groove that supplies the regulation ring to inlay to establish on the installation pole, the one end threaded connection that butt joint pole was kept away from to the control tube is on the butt joint pole.

Through adopting above-mentioned technical scheme, the rotation of control tube for the control tube moves towards the one side that is close to or keeps away from the butt joint pole, and when the control tube was when the pivoted in-process, the adjustable ring took place to rotate in the inside of mounting groove in step, thereby drives the butt joint pole and moves towards the one side that is close to or keeps away from the butt joint pole in step, and then adjusts supporting component's length, so that adapt to the not unidimensional article that wait to detect.

Optionally, first driving piece includes two sliding blocks, dead lever, dwang and runner assembly, two sliding block fixed connection is close to one side of baffle in matched with butt pole with it, two on the dead lever is located to the sliding block cover, the fixed slot has been seted up to the inside of baffle, dead lever fixed connection is in the inside of fixed slot, the dwang rotates the inside of connecting in the fixed slot, the thread groove has all been seted up at the both ends of dwang, the thread groove at dwang both ends revolves to opposite, two one side of sliding block all is provided with and revolves to the screw thread lug of mutually supporting with corresponding thread groove, the runner assembly is used for the drive dwang to take place to rotate.

Through adopting above-mentioned technical scheme, the rotation of runner assembly drives the dwang and takes place to rotate to make two sliding blocks orientation that the cover was located on the dead lever move towards the one side that is close to each other or keeps away from, and then adjust the distance between two supporting components that the symmetry set up, so that further enlarged supporting component's accommodation.

Optionally, the rotating assembly comprises a worm wheel and a worm, the worm wheel is fixedly sleeved on the rotating rod, the worm and the worm wheel are matched with each other, and a rotating hole for the worm to be embedded is formed in the side wall of the partition plate.

Through adopting above-mentioned technical scheme, the rotation of worm drives the worm wheel and takes place to rotate, and the worm wheel drives the dwang and takes place to rotate to adjust the distance between two supporting component fast conveniently.

Optionally, the abutting rod and the abutting rod are fixedly connected with a supporting plate on one side close to each other.

Through adopting above-mentioned technical scheme, the setting of backup pad to the staff will wait to detect the article and place in the backup pad, wait the lateral wall and the backup pad butt of the article that detect this moment, thereby improved and waited the stability of detecting article in the testing process.

Optionally, the side wall of the supporting plate is fixedly connected with a flexible pad.

Through adopting above-mentioned technical scheme, the wearing and tearing that produce when having reduced the article of waiting to detect and placing in the backup pad have prolonged the life of backup pad.

Optionally, the two sides of the inner wall of the accommodating cavity are fixedly connected with auxiliary plates, the two sides of the partition plate are fixedly connected with moving blocks, and the side walls of the two auxiliary plates are both provided with moving holes for the moving blocks to slide.

Through adopting above-mentioned technical scheme, when needs adjust supporting component, hold the baffle, move the movable block that the both sides of baffle set up in the inside that removes the hole to break away from the inside that holds the chamber with some of baffle, and then the staff of being convenient for is convenient fast will wait to detect article and place on supporting component.

Optionally, the box has seted up the chucking groove in the inner wall that holds the chamber, the inside in chucking groove is provided with the chucking pole, the chucking pole includes inserted bar and fixed connection in the holding pole of inserted bar one end, the lateral wall of baffle is seted up and is supplied the inserted bar to keep away from the one end of holding the pole and insert the first slot and the second slot of establishing, one side fixedly connected with elastic component of baffle is kept away from to the inserted bar, the elastic component is kept away from the one end fixed connection in the inner wall in chucking groove of inserted bar.

Through adopting above-mentioned technical scheme, when the movable block that baffle one side set up slided to the end wall in removal hole, the one end that the inserted bar kept away from the holding rod was inserted and is located the inside of first slot or second slot to the stability that the movable block is located the relative position in the removal hole has been improved.

Optionally, the lateral wall of holding the pole rotates and is connected with the anchorage bar, the box is seted up in the inner wall that holds the chamber and is supplied the anchorage bar to inlay the fastening groove of establishing, the inner wall integrated into one piece in fastening groove has the fastening lug that is used for with anchorage bar interference fit.

Through adopting above-mentioned technical scheme, after the one end of keeping away from the holding rod when the inserted bar breaks away from the inside of first slot or second slot, rotate the anchorage bar, the anchorage bar inlays the inside of locating the fastening groove for anchorage bar and fastening lug interference fit, thereby the staff of being convenient for removes the movable block in the inside of removing the hole fast conveniently, and then removes the baffle fast conveniently.

In a second aspect, the application provides a method for detecting a formaldehyde emission test box in indoor air, which includes the following steps:

holding the partition plate, and moving the moving block on the side wall of the partition plate along the inside of the moving hole to make a part of the partition plate separate from the inside of the accommodating cavity;

the distance between the two supporting components is adjusted through the first driving piece, and the distance between the abutting rod and the abutting rod is adjusted through the second driving piece, so that an article to be detected can be placed on the supporting components;

placing an article to be detected on the flexible pad on the supporting plate, so that the side, close to each other, of the article to be detected and the flexible pad are abutted;

the partition board is held, and the moving block on the side wall of the partition board moves along the inside of the moving hole, so that the partition board is embedded in the accommodating cavity.

Through adopting above-mentioned technical scheme, will wait to detect article and place on the flexible pad, adjust the distance between two supporting components through first driving piece, adjust the distance between butt rod and the butt rod through the second driving piece to the lateral wall butt of waiting to detect article is in the flexible pad, then places the baffle in holding the intracavity, thereby treats the article that detects and detect.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the article to be detected is placed on the supporting component, so that the article to be detected is supported, the contact area between the article to be detected and the supporting component is small, the article to be detected can be exposed in the air in the accommodating cavity more, and the accuracy of the detection result is improved.

2. The setting of backup pad to the staff will wait to detect the article and place in the backup pad, wait the lateral wall and the backup pad butt of the article that detect this moment, thereby improved the stability of the testing process of waiting to detect the article.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a box for testing the formaldehyde emission in indoor air according to an embodiment of the present application.

Fig. 2 is a partial cross-sectional view of the a-a structure of fig. 1.

Fig. 3 is a partial enlarged view of the structure a in fig. 2.

Fig. 4 is a schematic view of a separator structure in an embodiment of the present application.

Fig. 5 is a partial cross-sectional view of the B-B structure of fig. 4.

Fig. 6 is a partial cross-sectional view of the C-C structure of fig. 4.

Description of reference numerals: 1. a box body; 11. an accommodating chamber; 12. a clamping groove; 13. a fastening groove; 131. fastening the lug; 2. a partition plate; 21. fixing grooves; 22. rotating the hole; 23. a moving block; 24. a first slot; 25. a second slot; 3. a support assembly; 31. a butting rod; 32. a docking rod; 33. a second driving member; 331. a connecting rod; 332. mounting a rod; 3321. mounting grooves; 333. an adjusting tube; 3331. an adjusting ring; 4. a first driving member; 41. a sliding block; 411. a threaded projection; 42. fixing the rod; 43. rotating the rod; 431. a thread groove; 44. a rotating assembly; 441. a worm gear; 442. a worm; 5. a support plate; 51. a flexible pad; 6. an auxiliary plate; 61. moving the hole; 7. a clamping rod; 71. inserting a rod; 72. a holding rod; 721. a fastening rod; 73. an elastic member.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses formaldehyde emission test box in indoor air. Referring to fig. 1, formaldehyde emission test box includes box 1, and the inside of box 1 has been seted up and has been held chamber 11, and the inside that holds chamber 11 is provided with baffle 2, and the upper surface symmetry of baffle 2 is provided with supporting component 3.

Referring to fig. 2 and 3, the auxiliary plates 6 are welded on two sides of the inner wall of the accommodating cavity 11, the moving block 23 is welded on the lower surface of the partition plate 2, the side wall of the auxiliary plate 6 is provided with moving holes 61 in a penetrating manner along the thickness direction, and the moving holes 61 are used for the moving block 23 to slide; when the worker needs to place the article to be detected on the support assembly 3, the worker holds the partition board 2 and moves the moving block 23 on one side of the partition board 2 along the inside of the moving hole 61 towards the inside far away from the accommodating cavity 11; so that a part of the partition board 2 is separated from the inside of the accommodating cavity 11, thereby facilitating the staff to quickly and conveniently place the article to be detected on the supporting component 3.

Referring to fig. 3 and 4, a clamping groove 12 is formed in the inner wall of the accommodating cavity 11 of the box body 1, a clamping rod 7 is arranged inside the clamping groove 12, the clamping rod 7 comprises an insertion rod 71 and a holding rod 72, the insertion rod 71 can be L-shaped, and the holding rod 72 is welded on one side of the insertion rod 71; an elastic member 73 is arranged between the insertion rod 71 and the inner wall of the clamping groove 12, the elastic member 73 can be a spring, one end of the elastic member 73 is welded on the inner wall of the clamping groove 12, the other end of the elastic member is welded on the side wall of the insertion rod 71, and the side wall of the partition plate 2 is provided with a first slot 24 and a second slot 25 for the end part of the insertion rod 71 to be inserted; when a worker separates a part of the partition board 2 from the inside of the accommodating cavity 11 and the moving block 23 abuts against the inner wall of the moving hole 61, one end of the insertion rod 71, which is far away from the holding rod 72, is inserted into the first insertion groove 24 under the action of the elastic piece 73, so that the stability of the moving block 23 in the moving hole 61 is improved, and the worker can place an article to be detected on the support assembly 3 quickly and conveniently; after an article to be detected is placed on the support assembly 3, the holding rod 72 is pressed, so that the holding rod 72 moves towards the bottom wall of the clamping groove 12 until the end portion of the insertion rod 71 is separated from the inside of the first insertion groove 24, the elastic piece 73 is in a compressed state, then the partition board 2 is moved until the partition board 2 is embedded in the accommodating cavity 11, and the moving block 23 abuts against the inner wall of the moving hole 61; finally, the holding rod 72 is released, and the end of the insertion rod 71 is inserted into the second insertion groove 25 under the action of the elastic member 73, so that the stability of the moving block 23 in the moving hole 61 is improved, and the stability of the partition board 2 in the accommodating cavity 11 is improved.

Referring to fig. 3, a fastening rod 721 is hinged to a side wall of the holding rod 72, a fastening slot 13 for the fastening rod 721 to be embedded in is formed on an inner wall of the accommodating cavity 11 of the box body 1, a fastening lug 131 is integrally formed on an inner wall of the fastening rod 721, and the fastening lug 131 and the fastening rod 721 are in interference fit; when the elastic member 73 is in a compressed state and the end of the insertion rod 71 is separated from the inside of the first slot 24 or the second slot 25, the fastening rod 721 is embedded inside the fastening slot 13, so that the fastening rod 721 is in interference fit with the fastening protrusion 131, thereby fixing the fastening rod 721 in the fastening slot 13, and further facilitating a worker to quickly and conveniently move the partition plate 2; when the moving block 23 abuts against the inner wall of the moving hole 61, the fastening rod 721 is separated from the inside of the fastening groove 13, and the end of the insertion rod 71 is inserted into the first insertion groove 24 or the second insertion groove 25 by the elastic member 73, so that the stability of the moving block 23 in the moving hole 61 is improved.

Referring to fig. 4, the supporting assembly 3 includes an abutting rod 31, an abutting rod 32 and a second driving member 33, the abutting rod 31 is disposed on the upper side of the partition board 2, and the second driving member 33 is used for connecting the abutting rod 31 and the abutting rod 32; the second driving member 33 includes a connecting rod 331, a mounting rod 332 and an adjusting tube 333, the connecting rod 331 is welded to the sidewall of the abutting rod 31, the connecting rod 331 may be an L-shaped rod, the mounting rod 332 is welded to the sidewall of the abutting rod 32, and the mounting rod 332 may be an L-shaped rod; the adjusting ring 3331 is welded on the inner wall of the adjusting pipe 333, the mounting rod 332 is provided with a mounting groove 3321 for the adjusting ring 3331 to be embedded, and one end of the adjusting pipe 333 far away from the mounting rod 332 is sleeved on the connecting rod 331 through threads; when the distance between the abutting rod 31 and the abutting rod 32 cannot be matched with the size of an object to be detected, a worker rotates the adjusting pipe 333 to enable the adjusting pipe 333 to rotate towards one side close to or far away from the abutting rod 31, and at the moment, the adjusting ring 3331 synchronously rotates in the mounting groove 3321; thereby driving the abutting rod 32 to move towards one side close to and far from the abutting rod 31, so as to adjust the distance between the abutting rod 31 and the abutting rod 32, and further expand the application range of the supporting component 3.

Referring to fig. 5, the support plates 5 are welded to the sides of the abutting rods 31 and the abutting rods 32 away from the partition board 2, the flexible pads 51 are adhered to the side walls of the support plates 5 through glue, and the flexible pads 51 may be made of rubber; so that the staff will wait to detect the article and place on flexible pad 51, wait the lateral wall of the article that detects this moment and be located the flexible pad 51 butt of backup pad 5 lateral wall to the stability of waiting to detect the article testing process has been improved.

Referring to fig. 6, a first driving member 4 is disposed between adjacent supporting assemblies 3, and the first driving member 4 includes two sliding blocks 41, a fixing rod 42, a rotating rod 43 and a rotating assembly 44; the rotating assembly 44 comprises a worm wheel 441 and a worm 442, the worm 442 and the worm wheel 441 are meshed with each other, the worm wheel 441 is fixedly sleeved on the rotating rod 43, the side wall of the partition plate 2 is provided with a rotating hole 22 for the worm 442 to be embedded, the inside of the partition plate 2 is provided with a fixing groove 21, the fixing rod 42 is welded inside the fixing groove 21, and the two sliding blocks 41 are all sleeved on the fixing rod 42; the two sliding blocks 41 are welded and fixed by the mutually matched abutting rods 31, one sides of the two sliding blocks 41 are provided with threaded convex blocks 411, the rotating rod 43 is rotatably connected inside the fixed groove 21, two ends of the rotating rod 43 are provided with threaded grooves 431 mutually matched with the corresponding threaded convex blocks 411, and the rotating directions of the threaded grooves 431 at two ends of the rotating rod 43 are opposite; when the size of the article to be detected of unable adaptation of distance between adjacent supporting component 3, the staff rotates worm 442, and worm 442 drives worm wheel 441 and takes place to rotate, and worm wheel 441 drives dwang 43 and takes place to rotate, and dwang 43 drives two sliding block 41 orientation and is close to each other, the one side removal of keeping away from under mutually supporting of screw thread lug 411 and thread groove 431 to adjust the distance between adjacent supporting component 3 fast conveniently.

The embodiment also discloses a detection method of the test box for the formaldehyde emission in the indoor air, which comprises the following steps:

s1, holding the partition board 2, moving the moving block 23 on the side wall of the partition board 2 along the inside of the moving hole 61, so that a part of the partition board 2 is separated from the inside of the accommodating cavity 11;

s2, rotating the worm 442, the worm 442 driving the worm wheel 441 to rotate, the worm wheel 441 driving the rotating rod 43 to rotate, the rotating rod 43 driving the two sliding blocks 41 to move towards the sides close to and away from each other under the mutual cooperation of the threaded protrusion 411 and the threaded groove 431, the sliding blocks 41 driving the supporting assemblies 3 to move synchronously, thereby adjusting the distance between the two supporting assemblies 3; rotating the adjusting tube 333 to rotate the adjusting tube 333 toward a side close to or away from the abutting rod 31, and at this time, the adjusting ring 3331 synchronously rotates inside the mounting groove 3321, so as to drive the abutting rod 32 to move toward a side close to or away from the abutting rod 31, so as to adjust the distance between the abutting rod 31 and the abutting rod 32, and thus, the article to be detected can be placed on the supporting component 3;

s3, placing the article to be detected on the flexible pad 51 on the supporting plate 5, so that the article to be detected and the flexible pad 51 are abutted on the side close to each other;

s4, the partition board 2 is held, and the moving block 23 on the side wall of the partition board 2 is moved along the inside of the moving hole 61, so that the partition board 2 is embedded in the accommodating chamber 11.

The implementation principle of the formaldehyde emission test box in the indoor air of the embodiment of the application is as follows: the worm 442 is rotated, the worm 442 drives the worm wheel 441 to rotate, the worm wheel 441 drives the rotating rod 43 to rotate, the rotating rod 43 drives the two sliding blocks 41 to move towards the sides close to and away from each other under the mutual matching of the threaded convex block 411 and the threaded groove 431, the sliding blocks 41 drive the supporting components 3 to synchronously move, and therefore the distance between the two supporting components 3 is adjusted; rotate the regulation pipe 333, with the regulation pipe 333 orientation be close to, keep away from one side rotation of butt joint pole 31, the inside rotation at mounting groove 3321 is synchronized to adjustable ring 3331 this moment, thereby drive butt joint pole 32 orientation be close to, keep away from one side removal of butt joint pole 31, so that adjust the distance between butt joint pole 31 and the butt joint pole 32, thereby make the article that wait to detect place on supporting component 3, the article that wait to detect this moment is less with supporting component 3's area of contact, so that the article that wait to detect can expose in the air that holds in the chamber 11 more, thereby the accuracy of testing result has been improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.