VOC Emission Detection Environmental Chamber

Abstract

The present invention discloses a VOC emission detection environmental chamber, specifically relating to the technical field of VOC detection, which includes a chamber body, a support groove column, a linkage screw, a controller, two guiding frames, and a bilateral sub-region synchronous detection mechanism; wherein the bilateral sub-region synchronous detection mechanism includes a sleeve block, a micro motor, a hinge block, a hinge column, a hinge sleeve rod, a linkage shaft, a groove plate, a side detection chamber, a sealing side strip, and a side VOC gas sensor. Through the bilateral sub-region synchronous detection mechanism, the present invention has the advantages that two side detection chambers can perform synchronous sub-region detection on the two inner walls of the test material plate, enabling synchronous detection of multiple different regions of the test material plate, and greatly improving the detection efficiency of the sub-regions of the test material plate, thus solving the problems of low sub-region detection efficiency, difficulty in synchronously detecting multiple different regions of the object to be detected, and a significant decrease in the sub-region detection efficiency of the object to be detected.

Description

Technical Field

[0001] The present invention relates to the technical field of VOC detection, and more specifically, to a VOC emission detection environmental chamber. Background Art

[0002] The VOC emission detection environmental chamber is mainly used to detect the emission of volatile organic compounds (VOCs) in items such as wood products, furniture, floors, carpets, and building decoration materials. Its specific uses can be summarized as evaluating the environmental protection level of products. By simulating a sealed environment and controlling the temperature index inside the chamber, the emission process of products under use conditions can be simulated. The VOC emission concentration of the products is evaluated to assess the environmental protection level of the products.

[0003] In the existing published literature, the patent with the patent publication number CN106093312A discloses an odor, VOC, and floating harmful substance detection chamber with a light irradiation test function. This technology is provided with an infrared heating device or a sunlight irradiation lamp outside the glass structure. It can not only perform gas sampling in the chamber during ventilation / airtightness, detect the emission of volatile harmful gases such as formaldehyde and VOCs volatilized from the object to be measured, but also avoid the interference and influence of environmental factors or other uncertain factors on the test results, with good stability and high test accuracy. However, this patent has the following defects;

[0004] When the detection environmental chamber conducts VOC emission detection on the object to be detected, due to the existence of a bottom triangular area, a corner area, and double-sided positions on the object to be detected, when personnel perform VOC emission detection, they need to adjust the detection in one area position and then perform detection in other areas. The detection efficiency of different areas is relatively low, and it is difficult to synchronously detect multiple different areas of the object to be detected, resulting in a significant decrease in the detection efficiency of the partitioned areas of the object to be detected. Therefore, a VOC emission detection environmental chamber is needed. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides the following technical solution: A VOC emission detection environmental chamber, including a chamber body, a support groove column, a linkage screw, a controller, and two guiding frames. The support groove column is located on one side of the chamber body. The linkage screw is rotatably connected to the inner wall of the support groove column, and a double-sided sub-region synchronous detection mechanism is provided on the outer wall of the linkage screw; the double-sided sub-region synchronous detection mechanism includes a sleeve block threadedly connected to the outer wall of the linkage screw. A micro motor is fixedly connected to the top of the support groove column, and the micro motor is used to drive the linkage screw to rotate. Both sides of the outer wall of the sleeve block are fixedly connected with hinge blocks, and each hinge block is fixedly connected with a hinge column inside. The outer wall of the hinge column is rotatably connected with a hinge sleeve rod, and a linkage shaft is rotatably connected to a position far from the hinge column inside the hinge sleeve rod;

[0006] One end of the linkage shaft is fixedly installed with a groove plate, one side of the groove plate is fixedly connected with a side detection chamber, one side of the side detection chamber is fixedly connected with a sealing side strip, and a side VOC gas sensor is installed at the top of the side detection chamber.

[0007] Preferably, the output end of the micro motor is fixedly connected to the linkage screw, and the sleeve block is slidably connected to the support groove column. The inner wall of the support groove column and the outer wall of the sleeve block are both smooth surfaces. One side of the inner wall of the side detection chamber is fixedly connected with a side resistance heating plate, the top of the chamber body is fixedly connected with a controller, a display screen is fixedly installed on one side of the controller, and the side VOC gas sensor and the side resistance heating plate are both electrically connected to the controller; the controller is electrically connected to the micro motor. One side of the sealing side strip is provided with a test material plate. Both of the guiding frames are fixed at the bottom end of the support groove column, and a support rod is fixedly installed inside each guiding frame. A socket slider is slidably connected to the outer wall of each support rod; the socket slider is fixedly connected to the groove plate, and the side detection chamber is slidably connected to the guiding frame.

[0008] When the present technology is in use, the micro motor drives the linkage screw to rotate. At the same time, the linkage screw drives the sleeve block to move downward under the action of the screw transmission force. The two hinge blocks respectively drive the two hinge columns to move downward synchronously, the hinge sleeve rod drives the linkage shaft to move, and the groove plate drives the side detection chamber to move closer to the test material plate. The sealing side strip will fit on one side area of the inner wall of the test material plate, and the other sealing side strip will fit on the other side area of the inner wall of the test material plate. The side detection chamber performs a closed detection of the VOC release amount on one side area of the inner wall of the test material plate, and the other side detection chamber will also perform a closed detection of the VOC release amount on the other side area of the inner wall of the test material plate.

[0009] Preferably, a socket plate is provided between the two side detection chambers. Both of the guiding frames are fixedly connected to the socket plate, and a bottom triangular partition synchronous detection component is installed at the top of the socket plate; the bottom triangular partition synchronous detection component includes a lower piezoelectric cylinder fixedly installed at the top of the socket plate. The outer wall of the output end of the lower piezoelectric cylinder is slidably connected to the socket plate. The output end of the lower piezoelectric cylinder is fixedly installed with a bottom triangular detection chamber. A sealing bottom strip is fixedly connected to the lower surface of the bottom triangular detection chamber; a bottom resistance heating plate is fixedly installed on the inner wall of the bottom triangular detection chamber, and a bottom VOC gas sensor is installed on one side of the bottom resistance heating plate. The cross-sectional shape of the bottom triangular detection chamber is triangular, and the sealing bottom strip is made of rubber material. The bottom VOC gas sensor is fixedly connected to the bottom triangular detection chamber, and the cross-sectional shape of the bottom resistance heating plate is rectangular.

[0010] When this technology is in use, the lower piezoelectric cylinder drives the bottom triangular detection chamber to move downward, and the bottom triangular detection chamber causes the sealing bottom strip to move downward. Through the bottom triangular detection chamber, synchronous sealed VOC emission detection can be achieved for the bottom end area of the inner wall of the test plate. Then, the controller is used to turn on the bottom resistance heating plate for heating operation.

[0011] Preferably, a linkage bar is fixedly connected to the outer wall of the support groove column near the position of the micro motor, and a corner sub-region synchronous detection component is provided at one end of the linkage bar; the corner sub-region synchronous detection component includes a corner test chamber fixedly arranged at one end of the linkage bar, a sealing corner strip is fixedly connected to one side of the corner test chamber, a corner VOC gas sensor is installed at the top end of the inner wall of the corner test chamber, and a corner resistance heating plate is installed on one side of the corner VOC gas sensor; a support sleeve plate is fixedly installed at the bottom end of the inner wall of the chamber, a push cylinder is fixedly installed inside the support sleeve plate, and the output end of the push cylinder is fixedly connected to the support groove column. Both the corner resistance heating plate and the corner VOC gas sensor are electrically connected to the controller, and the push cylinder is electrically connected to the controller. The linkage bar is made of carbon fiber material, and the sealing corner strip is made of rubber material. Both the corner VOC gas sensor and the corner resistance heating plate are fixedly connected to the corner test chamber, and the inner wall of the corner test chamber is a smooth surface.

[0012] When this technology is in use, the push cylinder pushes the support groove column to move, the corner test chamber drives the sealing corner strip to move leftward, the corner test chamber conducts sealed VOC emission detection on the corner position of the test plate, and at the same time, the controller turns on the corner resistance heating plate to heat the internal space of the corner test chamber.

[0013] The technical effects and advantages of the present invention:

[0014] 1. Through the bilateral sub-region synchronous detection mechanism of the present invention, the micro motor drives the linkage screw to rotate, the linkage screw drives the sleeve block to move downward under the action of the screw driving force, the two hinge blocks respectively drive the two hinge columns to move downward synchronously, the linkage shaft drives the groove plate to move, and the side detection chamber conducts closed detection of the VOC emission for one side area of the inner wall of the test plate, while the other side detection chamber also conducts closed detection of the VOC emission for the other side area of the inner wall of the test plate. Synchronous detection can be achieved for multiple different areas of the test plate, and the partition detection efficiency of the test plate is greatly improved.

[0015] 2. The present invention adopts the bottom triangular partition synchronous detection component. The lower piezoelectric cylinder drives the bottom triangular detection chamber to move downward, the bottom triangular detection chamber causes the sealing bottom strip to move downward, the sealing bottom strip seals and fits at the bottom end position of the inner wall of the test plate, and the bottom triangular detection chamber can achieve synchronous sealing of the bottom end area of the inner wall of the test plate, thereby detecting the VOC emission of the bottom of the test plate.

[0016] 3. Through the corner sub-region synchronous detection component of the present invention, the electric cylinder is driven to push the support groove column to move. The support groove column drives the linkage bar to move leftward, and the corner test cabin drives the sealing corner strip to move leftward. The sealing corner strip is extruded and sealed at the corner position of the test plate. The corner test cabin conducts a sealed detection of the VOC release amount at the corner position of the test plate, greatly improving the detection efficiency of the test plate in sub-regions.

[0017] Due to the mutual influence of the above multiple functions, first, the side detection cabin conducts a closed detection of the VOC release amount in the area on one side of the inner wall of the test plate, and another side detection cabin also conducts a closed detection of the VOC release amount in the area on the other side of the inner wall of the test plate. At the same time, the VOC release amount of the bottom of the inner wall of the test plate is detected, and the corner test cabin conducts a sealed detection of the VOC release amount at the corner position of the test plate. In summary, synchronous detection can be achieved for multiple different regions of the test plate, greatly improving the detection efficiency of the test plate in sub-regions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the VOC release amount detection environmental chamber of the present invention.

[0019] Figure 2 It is a schematic diagram of the side view structure of the VOC release amount detection environmental chamber of the present invention.

[0020] Figure 3 It is a schematic diagram of a partial cross-sectional view of the connection between the support groove column and the micro motor of the present invention.

[0021] Figure 4 It is a schematic diagram of a partial cross-sectional view of the connection between the sleeve block and the hinge block of the present invention.

[0022] Figure 5 It is a schematic diagram of a partial cross-sectional view of the connection between the groove plate and the linkage shaft of the present invention.

[0023] Figure 6 For the present invention Figure 3 The enlarged schematic diagram at position A.

[0024] Figure 7 It is a schematic diagram of a partial front view of the connection between the side detection cabin and the side VOC gas sensor of the present invention.

[0025] Figure 8 It is a schematic diagram of a partial bottom view of the bottom triangular detection cabin of the present invention.

[0026] Figure 9 It is a schematic diagram of a partial cross-sectional view of the connection between the linkage bar and the corner test cabin of the present invention.

[0027] Figure 10It is a schematic diagram of the partial structure of the corner test cabin of the present invention when viewed from above.

[0028] Figure 11 It is a schematic diagram of the cross-sectional structure of the VOC emission detection environment chamber of the present invention.

[0029] The accompanying drawings are marked as follows: 1. cabin; 2. supporting slot column; 3. linkage screw; 4. micro motor; 5. sleeve block; 6. hinge block; 7. hinge column; 8. hinge sleeve rod; 9. linkage shaft; 10. slot plate; 11. side detection cabin; 12. sealed side strip; 13. side resistance heating plate; 14. side VOC gas sensor; 15. test material plate; 16. controller; 17. display screen; 18. sleeve slider; 19. guide frame; 20. supporting rod; 21. sleeve plate; 22. downward pressure electric cylinder; 23. bottom triangle detection cabin; 24. sealed bottom strip; 25. bottom resistance heating plate; 26. bottom VOC gas sensor; 27. linkage strip; 28. corner test cabin; 29. ​​sealed corner strip; 30. corner VOC gas sensor; 31. corner resistance heating plate; 32. pushing electric cylinder; 33. supporting sleeve plate. DETAILED DESCRIPTION

[0030] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0031] As attached Figure 1 - Attachment Figure 11 A VOC emission detection environment chamber is shown, which is provided with a double-sided area synchronous detection mechanism, a bottom triangular area synchronous detection component and a corner area synchronous detection component. The settings of each mechanism and component can realize synchronous detection of multiple different areas of the test material plate 15, and the partition detection efficiency of the test material plate 15 is greatly improved. The specific structural settings of each mechanism and component are as follows.

[0032] In this technical solution, as shown in the attached Figure 1 - Attachment Figure 7As shown in the figure, the support groove column 2 is located on one side of the cabin body 1. The linkage screw 3 is rotatably connected to the inner wall of the support groove column 2, and a bilateral sub-region synchronous detection mechanism is provided on the outer wall of the linkage screw 3. The bilateral sub-region synchronous detection mechanism includes a sleeve block 5 threadedly connected to the outer wall of the linkage screw 3. A micro motor 4 is fixedly connected to the top end of the support groove column 2, and the micro motor 4 is used to drive the linkage screw 3 to rotate. On both sides of the outer wall of the sleeve block 5, hinge blocks 6 are fixedly connected. Inside each hinge block 6, a hinge column 7 is fixedly connected. The outer wall of the hinge column 7 is rotatably connected to a hinge sleeve rod 8. Inside the hinge sleeve rod 8 and at a position far from the hinge column 7, a linkage shaft 9 is rotatably connected.

[0033] One end of the linkage shaft 9 is fixedly installed with a groove plate 10. On one side of the groove plate 10, a side detection cabin 11 is fixedly connected. On one side of the side detection cabin 11, a sealing side strip 12 is fixedly connected. On the top end of the side detection cabin 11, a side VOC gas sensor 14 is installed. A fixed connection is provided between the output end of the micro motor 4 and the linkage screw 3, and a sliding connection is provided between the sleeve block 5 and the support groove column 2. The inner wall of the support groove column 2 and the outer wall of the sleeve block 5 are both smooth surfaces.

[0034] In this technical solution, as shown in the attached Figure 1 -attached Figure 10 figure, on one side of the inner wall of the side detection cabin 11, a side resistance heating plate 13 is fixedly connected. On the top end of the cabin body 1, a controller 16 is fixedly connected. On one side of the controller 16, a display screen 17 is fixedly installed. Both the side VOC gas sensor 14 and the side resistance heating plate 13 are electrically connected to the controller 16; an electrical connection is provided between the controller 16 and the micro motor 4, so as to sense the VOC release amount through the side VOC gas sensor 14 and turn on the display screen 17 through the controller 16 to display the VOC release amount. On one side of the sealing side strip 12, a test material plate 15 is provided. Both guide frames 19 are fixed at the bottom end of the support groove column 2. Inside each guide frame 19, a support rod 20 is fixedly installed. The outer wall of each support rod 20 is slidably connected to a socket slider 18; a fixed connection is provided between the socket slider 18 and the groove plate 10, and a sliding connection is provided between the side detection cabin 11 and the guide frame 19, so as to squeeze and seal the sealing corner strip 29 at the corner position of the test material plate 15. The groove plate 10 drives the socket slider 18 to move, and the socket slider 18 slides along the inner wall of the guide frame 19 for guiding, and at the same time, the socket slider 18 slides along the outer wall of the support rod 20 for guiding.

[0035] In this technical solution, as shown in the attached Figure 6 -attached Figure 8As shown in the figure, a socket plate 21 is provided between two side detection cabins 11. Both guiding frames 19 are fixedly connected to the socket plate 21. A bottom triangular partition synchronous detection component is installed at the top of the socket plate 21. The bottom triangular partition synchronous detection component includes a lower piezoelectric cylinder 22 fixedly installed at the top of the socket plate 21. The outer wall of the output end of the lower piezoelectric cylinder 22 is slidably connected to the socket plate 21. A bottom triangular detection cabin 23 is fixedly installed at the output end of the lower piezoelectric cylinder 22. A sealing bottom strip 24 is fixedly connected to the lower surface of the bottom triangular detection cabin 23. A bottom resistance heating plate 25 is fixedly installed on the inner wall of the bottom triangular detection cabin 23. A bottom VOC gas sensor 26 is installed on one side of the bottom resistance heating plate 25. The cross-sectional shape of the bottom triangular detection cabin 23 is triangular, and the sealing bottom strip 24 is made of rubber material. The bottom VOC gas sensor 26 is fixedly connected to the bottom triangular detection cabin 23, and the cross-sectional shape of the bottom resistance heating plate 25 is rectangular.

[0036] In this technical solution, as shown in the attached Figure 3 -attached Figure 11 figure, a linkage bar 27 is fixedly connected to the outer wall of the support groove column 2 and near the position of the micro motor 4. A corner sub-region synchronous detection component is provided at one end of the linkage bar 27. The corner sub-region synchronous detection component includes a corner test cabin 28 fixedly provided at one end of the linkage bar 27. A sealing corner strip 29 is fixedly connected to one side of the corner test cabin 28. A corner VOC gas sensor 30 is installed at the top of the inner wall of the corner test cabin 28. A corner resistance heating plate 31 is installed on one side of the corner VOC gas sensor 30. A support sleeve plate 33 is fixedly installed at the bottom end of the inner wall of the cabin body 1.

[0037] A push electric cylinder 32 is fixedly installed inside the support sleeve plate 33, and the output end of the push electric cylinder 32 is fixedly connected to the support groove column 2. Both the corner resistance heating plate 31 and the corner VOC gas sensor 30 are electrically connected to the controller 16, and the push electric cylinder 32 is electrically connected to the controller 16. The linkage bar 27 is made of carbon fiber material, and the sealing corner strip 29 is made of rubber material. Both the corner VOC gas sensor 30 and the corner resistance heating plate 31 are fixedly connected to the corner test cabin 28, and the inner wall of the corner test cabin 28 is a smooth surface.

[0038] The working principle of the VOC emission detection environmental chamber of the present invention is as follows:

[0039] First, when the present invention performs corner sub-region synchronous detection, the controller 16 activates the pushing electric cylinder 32 inside the cabin body 1. The pushing electric cylinder 32 pushes the support groove column 2 to move. Meanwhile, the cabin body 1 supports the support sleeve plate 33, and the support sleeve plate 33 provides a stable supporting force for the pushing electric cylinder 32. The support groove column 2 drives the linkage bar 27 to move leftward. The linkage bar 27 drives the corner test cabin 28 to move leftward. The corner test cabin 28 drives the sealed corner strip 29 to move leftward, and the sealed corner strip 29 is pressed against the corner position of the test material plate 15 for sealing. The corner test cabin 28 conducts a sealed detection of the VOC release amount at the corner position of the test material plate 15, and then the controller 16 closes the pushing electric cylinder 32. Meanwhile, the controller 16 turns on the corner resistance heating plate 31 to heat the internal space of the corner test cabin 28, so that the VOC at the corner position of the test material plate 15 can be quickly released. The moving directions described in the above paragraph mainly refer to the view directions in Figure 11 the attached drawings.

[0040] Meanwhile, when the present invention performs bilateral sub-region synchronous detection, the controller 16 activates the micro motor 4. The micro motor 4 drives the linkage screw 3 to rotate. The linkage screw 3 rotates stably inside the support groove column 2. Meanwhile, the rotation of the linkage screw 3 drives the sleeve block 5 to move downward under the action of the screw transmission force. The sleeve block 5 slides down along the inner wall of the support groove column 2. Meanwhile, the sleeve block 5 drives the two hinge blocks 6 to move downward synchronously. The two hinge blocks 6 respectively drive the two hinge columns 7 to move downward synchronously. The hinge column 7 drives the top end of the hinge sleeve rod 8 to move downward. The hinge sleeve rod 8 drives the linkage shaft 9 to move. The linkage shaft 9 drives the groove plate 10 to move. The groove plate 10 drives the side detection cabin 11 to move closer to the test material plate 15.

[0041] The side detection cabin 11 drives the sealed side strip 12 to move closer to the test material plate 15. Meanwhile, the groove plate 10 drives the socket slider 18 to move. The socket slider 18 slides along the inner wall of the guide frame 19 and also slides along the outer wall of the support rod 20. In this way, one sealed side strip 12 will fit on one side area of the inner wall of the test material plate 15, and the other sealed side strip 12 will fit on the other side area of the inner wall of the test material plate 15. The side detection cabin 11 conducts a closed detection of the VOC release amount on one side area of the inner wall of the test material plate 15, and the other side detection cabin 11 also conducts a closed detection of the VOC release amount on the other side area of the inner wall of the test material plate 15. Meanwhile, the controller 16 will turn on the side resistance heating plate 13, and the side resistance heating plate 13 conducts a heating operation on the internal area of the side detection cabin 11.

[0042] Meanwhile, when the present invention performs bottom triangular partition synchronous detection, the lower piezoelectric cylinder 22 is started by the controller 16 at the same time. The socket plate 21 is supported by the guiding frame 19. The lower piezoelectric cylinder 22 drives the bottom triangular detection chamber 23 to move downward. The bottom triangular detection chamber 23 causes the sealing bottom strip 24 to move downward. The sealing bottom strip 24 is hermetically attached to the bottom end position of the inner wall of the test plate 15. The bottom triangular detection chamber 23 can perform synchronous sealed VOC emission detection on the bottom end area of the inner wall of the test plate 15. Then, the controller 16 is used to turn on the bottom resistance heating plate 25, and the bottom resistance heating plate 25 performs a heating operation on the bottom end area of the inner wall of the test plate 15.

[0043] Finally, when the present invention performs synchronous detection, the VOCs released from both sides of the inner wall of the test plate 15 will respectively enter the two side detection chambers 11, and the VOC emission is sensed by the side VOC gas sensors 14. At the same time, the VOCs released at the corner positions of the test plate 15 enter the corner test chamber 28. In this way, the VOC emission is sensed by the corner VOC gas sensors 30. At the same time, the VOCs released at the bottom end position of the inner wall of the test plate 15 enter the bottom triangular detection chamber 23, and the VOC emission is sensed by the bottom VOC gas sensors 26. It is possible to perform sub-region synchronous VOC emission detection at both side positions of the inner wall of the test plate 15, the bottom end position of the inner wall of the test plate 15, and the corner positions of the test plate 15. The detected VOC emissions are all displayed on the display screen 17, greatly improving the detection efficiency.

[0044] The content not described in detail in the specification belongs to the prior art well-known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited. Conventional equipment can be used. In this technical solution, since the electrical control components not mentioned belong to the prior art, they are not shown in the figure and will not be described herein.

[0045] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. The VOC emission detection environmental chamber includes a chamber body (1), support groove columns (2), a linkage screw (3), a controller (16), and two guide frames (19). The support groove columns (2) are located on one side of the chamber body (1), and the linkage screw (3) is rotatably connected to the inner wall of the support groove column (2). It is characterized in that: The outer wall of the linkage screw (3) is provided with a bilateral sub-region synchronous detection mechanism; The bilateral sub-region synchronous detection mechanism includes a sleeve block (5) threadedly connected to the outer wall of the linkage screw (3). The top of the support groove column (2) is fixedly connected with a micro motor (4), and the micro motor (4) is used to drive the linkage screw (3) to rotate. Both sides of the outer wall of the sleeve block (5) are fixedly connected with hinge blocks (6). The inner wall of each hinge block (6) is fixedly connected with a hinge column (7). The outer wall of the hinge column (7) is rotatably connected with a hinge sleeve rod (8). The inner wall of the hinge sleeve rod (8) is rotatably connected with a linkage shaft (9) at a position far from the hinge column (7). One end of the linkage shaft (9) is fixedly installed with a groove plate (10). One side of the groove plate (10) is fixedly connected with a side detection cabin (11). One side of the side detection cabin (11) is fixedly connected with a sealing side strip (12). The top of the side detection cabin (11) is installed with a side VOC gas sensor (14). There is a socket plate (21) between the two side detection cabins (11). Both of the guiding frames (19) are fixedly connected with the socket plate (21). The top of the socket plate (21) is installed with a bottom triangular partition synchronous detection component. The bottom triangular partition synchronous detection component includes a lower piezoelectric cylinder (22) fixedly installed on the top of the socket plate (21). The outer wall of the output end of the lower piezoelectric cylinder (22) is slidably connected with the socket plate (21). The output end of the lower piezoelectric cylinder (22) is fixedly installed with a bottom triangular detection cabin (23). The lower surface of the bottom triangular detection cabin (23) is fixedly connected with a sealing bottom strip (24). The inner wall of the bottom triangular detection cabin (23) is fixedly installed with a bottom resistance heating plate (25). A bottom VOC gas sensor (26) is installed on one side of the bottom resistance heating plate (25). The outer wall of the support groove column (2) near the micro motor (4) is fixedly connected with a linkage bar (27). One end of the linkage bar (27) is provided with a corner sub-region synchronous detection component. The corner sub-region synchronous detection component includes a corner test cabin (28) fixedly arranged at one end of the linkage bar (27). One side of the corner test cabin (28) is fixedly connected with a sealing corner strip (29). The top of the inner wall of the corner test cabin (28) is installed with a corner VOC gas sensor (30).

2. The VOC emission detection environmental chamber according to claim 1, wherein: The output end of the micro motor (4) is fixedly connected with the linkage screw (3), and the sleeve block (5) is slidably connected with the support groove column (2). The inner wall of the support groove column (2) and the outer wall of the sleeve block (5) are both smooth surfaces.

3. The VOC emission detection environmental chamber according to claim 1, characterized in that: One side of the inner wall of the side detection cabin (11) is fixedly connected with a side resistance heating plate (13). The top of the cabin body (1) is fixedly connected with a controller (16). One side of the controller (16) is fixedly installed with a display screen (17). The side VOC gas sensor (14) and the side resistance heating plate (13) are both electrically connected with the controller (16); The controller (16) is electrically connected to the micro motor (4).

4. The VOC emission detection environmental chamber according to claim 1, characterized in that: A test plate (15) is provided on one side of the sealing side strip (12). Both of the guiding frames (19) are fixed to the bottom end of the support groove column (2). A support rod (20) is fixedly installed inside each of the guiding frames (19). A socket slider (18) is slidably connected to the outer wall of each of the support rods (20); The socket slider (18) is fixedly connected to the groove plate (10). The side detection chamber (11) is slidably connected to the guiding frame (19).

5. The VOC emission detection environmental chamber according to claim 1, characterized in that: The cross-sectional shape of the bottom triangular detection chamber (23) is triangular. The sealing bottom strip (24) is made of rubber material.

6. The VOC emission detection environmental chamber according to claim 1, characterized in that: The bottom VOC gas sensor (26) is fixedly connected to the bottom triangular detection chamber (23). The cross-sectional shape of the bottom resistance heating plate (25) is rectangular.

7. The VOC emission detection environmental chamber according to claim 1, wherein: A corner resistance heating plate (31) is installed on one side of the corner VOC gas sensor (30); A support sleeve plate (33) is fixedly installed at the bottom end of the inner wall of the cabin body (1). A pushing electric cylinder (32) is fixedly installed inside the support sleeve plate (33). The output end of the pushing electric cylinder (32) is fixedly connected to the support groove column (2). Both the corner resistance heating plate (31) and the corner VOC gas sensor (30) are electrically connected to the controller (16). The pushing electric cylinder (32) is electrically connected to the controller (16).

8. The VOC emission detection environmental chamber according to claim 1, wherein: The linkage bar (27) is made of carbon fiber material. The sealing corner strip (29) is made of rubber material.

9. The VOC emission detection environmental chamber according to claim 1, wherein: Both the corner VOC gas sensor (30) and the corner resistance heating plate (31) are fixedly connected to the corner test chamber (28). The inner wall of the corner test chamber (28) is a smooth surface.

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