Biodegradable plastic product detection device

Abstract

The invention discloses a biodegradable plastic product detection device, and relates to the technical field of plastic detection.The biodegradable plastic product detection device comprises a base, a detection box is fixedly installed on the lower portion in the base, an impact rod is movably installed at the top of the base, an impact head is fixedly installed at the bottom of the impact rod, a driving mechanism is arranged on the base, and the impact rod is fixedly sleeved with a mounting plate; a movable rod is fixedly mounted on the mounting plate, a toothed plate is fixedly mounted on the movable rod, the toothed plate is attached to the inner wall of the base, a positioning mechanism and a transmission mechanism are arranged in the detection box, and the transmission mechanism comprises a transmission gear, a first bevel gear, a transmission shaft, a second bevel gear, a movable seat and a driving rod. A transmission groove is formed in the position, corresponding to the toothed plate, of the base. The effect of automatically positioning and fixing the plastic product during impact is achieved, the detection efficiency is improved, and meanwhile, the situation that detection fails due to movement of the plastic product during impact is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of plastic detection, and in particular to a biodegradable plastic product detection device. Background Art

[0002] In order to facilitate environmental decomposition, biodegradable plastics are made from specific raw materials. Compared with traditional plastics, their strength will be lower. Therefore, the strength needs to be tested after processing to verify whether it meets actual needs.

[0003] A Chinese patent with a search announcement number of CN118067524A discloses a biodegradable plastic product detection device, which relates to the field of plastic detection and includes a base, wherein columns are arranged around the upper end of the base, and a detection component is arranged at the upper end of the column, and the strength of the plastic product is detected by the detection component; when the telescopic member is started, the biodegradable plastic product detection device synchronously drives the clamping block arranged at its output end to move, and since the clamping block is connected to the upper end of the plastic product, when the clamping block moves downward, the angle of the clamping block can be adjusted according to the actual situation, so that the force application point of the clamping block is adjusted until it reaches the optimal state, thereby ensuring the accuracy of the detection result; the applied force is recorded by the telescopic member and transmitted to the inside of the control device, and the plastic product is recorded, thereby ensuring the safety of the detection.

[0004] However, the above invention has the following disadvantages:

[0005] When testing plastic products, in order to ensure that the plastic products do not move during testing and cause inaccurate test results, it is generally necessary to fix the plastic products first and then test them. This method is more troublesome, and the sizes of different plastic products are inconsistent. Therefore, it takes a long time to fix different plastic products, which affects the test efficiency. Summary of the invention

[0006] The purpose of the present invention is to provide a biodegradable plastic product detection device to solve the problems raised in the above background technology.

[0007] The technical solution of the present invention is: a biodegradable plastic product detection device, comprising a base, a detection box is fixedly installed at the lower part of the base, an impact rod is movably installed at the top of the base, an impact head is fixedly installed at the bottom of the impact rod, a driving mechanism is arranged on the base, a mounting plate is fixedly sleeved on the impact rod, a movable rod is fixedly installed on the mounting plate, a tooth plate is fixedly installed on the movable rod, the tooth plate is fitted with the inner wall of the base, and a positioning mechanism and a transmission mechanism are arranged inside the detection box;

[0008] The transmission mechanism includes a transmission gear, a first bevel gear, a transmission shaft, a second bevel gear, a movable seat and a driving rod. A transmission groove is provided on the base at a position corresponding to the tooth plate. The transmission gear is movably installed inside the transmission groove, and the transmission gear and the tooth plate are meshed with each other. The first bevel gear is vertically movably installed inside the base, and the transmission shaft is fixedly installed on the transmission gear. There are two movable seats. Two movable grooves are provided at the top of the base at a position corresponding to the positioning mechanism. The two movable seats are respectively movably installed inside the two movable grooves, and the movable seats are movably connected to the positioning mechanism. The driving rod is movably installed between the two movable grooves. There are three second bevel gears, which are respectively installed at the upper and lower ends of the first bevel gear and one end of the driving rod, and the second bevel gear above the first bevel gear is meshed with the transmission shaft for transmission, and the second bevel gear below the first bevel gear is meshed with the second bevel gear on the driving rod for transmission.

[0009] Preferably, the positioning mechanism includes a positioning rod, a positioning seat and a positioning roller. There are two positioning rods, which are symmetrically arranged inside the detection box. The positioning seat is an arc-shaped structure. There are four positioning seats, which are respectively fixedly installed on the two positioning rods. There are multiple positioning rollers, which are evenly distributed and embedded in the positioning seat.

[0010] Preferably, the driving rod is provided with two opposite threads, the driving rod passes through the two movable seats and is threadably connected to the movable seats through the two opposite threads.

[0011] Preferably, a connecting block is fixedly installed on the positioning rod, the connecting block passes through the inner and outer walls of the detection box, a mounting groove is opened on the movable seat, a connecting rod is movably installed inside the mounting groove, one end of the connecting rod is fixedly connected to the connecting block, a connecting spring is sleeved on the connecting rod, and the movable seat and the positioning rod are movably connected through the connecting block, the connecting rod and the connecting spring.

[0012] Preferably, the driving mechanism includes a driving rack, a driving shaft, a driving gear, an electric push rod, a limit block and an impact spring. The driving rack is fixedly mounted on the side wall of the impact rod. A driving groove is provided inside the base corresponding to the position of the driving rack. The driving shaft is movably installed inside the driving groove through a motor. The driving gear is fixedly sleeved on the driving shaft, and the driving gear and the driving rack are meshed for transmission.

[0013] Preferably, a plurality of positioning grooves are provided on the side wall of the impact rod, and the plurality of positioning grooves are evenly distributed. The electric push rod is embedded in the inside of the base, and the limit block is fixedly installed on the output end of the electric push rod. One end of the limit block is located in the inside of one of the positioning grooves, and a side wall surface of the limit block located in the positioning groove is an inclined surface, and the impact spring is sleeved on the impact rod.

[0014] Preferably, the bottoms of the two positioning seats located at the bottom are fixedly mounted with pulley seats, and pulleys are movably mounted inside the pulley seats, and the pulleys are in contact with the wall surface of the base.

[0015] Preferably, a protective plate is provided on the outside of the detection box, a slide groove is provided on the outer wall of the detection box at a position corresponding to the protective plate, a slider is provided inside the slide groove, the slider is fixedly connected to the protective plate, and an air pipe is fixedly installed on the base.

[0016] Preferably, one end of the air pipe passes through the bottom wall of the detection box and is connected to the interior of the slide slot, and an extrusion rod is movably installed above the interior of the air pipe, and the top of the extrusion rod is fixedly connected to the tooth plate.

[0017] The present invention provides a biodegradable plastic product detection device through improvement, which has the following improvements and advantages compared with the prior art:

[0018] First, the present invention is provided with a positioning mechanism, and the transmission mechanism can drive the two positioning rods to move toward the middle of the interior of the detection box, and then the plastic products can be squeezed and positioned through the positioning seat and the positioning roller. The positioning seat is an arc structure, and the positioning roller drives elasticity, so that plastic products of different shapes can be positioned and fixed.

[0019] Secondly, the present invention is provided with a transmission mechanism. When the impact rod and the impact head move downward to perform impact detection on the plastic product, the mounting plate and the movable rod will drive the tooth plate to move downward on the base, and the tooth plate and the transmission gear are meshed for transmission, so that the transmission gear will drive the transmission shaft to rotate, and the transmission shaft is meshed with the second bevel gear, thereby driving the first bevel gear to rotate. The rotation of the first bevel gear can drive the driving rod to rotate through the second bevel gear, and the driving rod is threadedly connected to the two movable seats through two opposite threads, so that the two movable seats can drive the positioning mechanism to move toward the middle of the detection box, thereby positioning the plastic product, achieving the effect of automatically positioning and fixing the plastic product during impact, improving the detection efficiency, and avoiding the situation where the plastic product moves during impact and causes detection failure.

[0020] Third: The present invention is provided with a driving mechanism. When the impact rod moves to the point where the limit block is located inside one of the positioning grooves, the impact rod will be limited. At this time, the impact spring will also be squeezed and force will be accumulated. Then the electric push rod can be started, and the electric push rod drives the limit block to leave the inside of the positioning groove. At this time, the impact rod loses its limit, and the impact rod will move downward under the action of the impact spring, thereby enabling impact detection of the plastic product. Moreover, since there are multiple positioning grooves, detections of different intensities can be performed.

[0021] Fourthly, in the present invention, when the tooth plate moves downward, the extrusion rod will move downward inside the air pipe, thereby squeezing the air inside the air pipe, causing the air to move to the inside of the slide groove, thereby blowing the slider to move upward, and the slider then drives the protective plate to move upward. The upward movement of the protective plate can protect the upper and surrounding areas of the detection box, thereby preventing the plastic products from being crushed during detection and the flying fragments from causing damage to the human body or the surrounding area. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a cross-sectional view of the internal structure of the present invention;

[0025] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0026] Figure 4 For the present invention Figure 2 Enlarged view of point B in the middle;

[0027] Figure 5 For the present invention Figure 2 Enlarged view of point C in the middle;

[0028] Figure 6 It is a schematic diagram of the protective plate installation structure in the present invention.

[0029] Reference numerals:

[0030] 1. Base; 2. Detection box; 3. Impact rod; 4. Impact head; 5. Mounting plate; 6. Push rod; 7. Tooth plate; 8. Transmission groove; 9. Transmission gear; 10. First bevel gear; 11. Transmission shaft; 12. Second bevel gear; 13. Extrusion rod; 14. Positioning seat; 15. Positioning roller; 16. Movable seat; 17. Movable groove; 18. Drive rod; 19. Connecting block; 20. Mounting groove; 21. Connecting rod; 22. Connecting spring; 23. Drive rack; 24. Drive groove; 25. Drive shaft; 26. Drive gear; 27. Positioning groove; 28. Electric push rod; 29. ​​Limit block; 30. Impact spring; 31. Pulley seat; 32. Pulley; 33. Protective plate; 34. Slide groove; 35. Slider; 36. Air pipe; 37. Extrusion rod. DETAILED DESCRIPTION

[0031] The present invention is described in detail below, and the technical solutions in the embodiments of the present invention are clearly and completely described. 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.

[0032] The present invention provides a biodegradable plastic product detection device through improvement. The technical solution of the present invention is:

[0033] like Figures 1 to 4 As shown, an embodiment of the present invention provides a biodegradable plastic product detection device, including a base 1, the base 1 is a "C"-shaped structure, a detection box 2 is fixedly installed at the bottom of the base 1, the detection box 2 is a hollow rectangular structure, the plastic product is placed in the detection box 2 for detection, an impact rod 3 is movably installed on the top of the base 1, the impact rod 3 is a cylindrical structure, an impact head 4 is fixedly installed at the bottom of the impact rod 3, a driving mechanism is provided on the base 1, the impact rod 3 can be driven to move by the driving mechanism, and the plastic product in the detection box 2 can be impact-tested by the impact rod 3 and the impact head 4, a mounting plate 5 is fixedly sleeved on the impact rod 3, the mounting plate 5 is a circular plate, a movable rod 6 is fixedly installed on the mounting plate 5, the movable rod 6 is an "L"-shaped rod, a tooth plate 7 is fixedly installed on the movable rod 6, the tooth plate 7 is a rectangular structure, and the tooth plate 7 fits the inner wall of the base 1, and a positioning mechanism and a transmission mechanism are provided inside the detection box 2;

[0034] The positioning mechanism includes a positioning rod 13, a positioning seat 14 and a positioning roller 15. The positioning rod 13 is a rectangular structure. There are two positioning rods 13. The two positioning rods 13 are symmetrically arranged inside the detection box 2. The positioning seat 14 is an arc-shaped structure. There are four positioning seats 14. The four positioning seats 14 are fixedly installed on the two positioning rods 13 respectively. The positioning roller 15 is a cylindrical structure with a softer material. There are multiple positioning rollers 15. Multiple positioning rollers 15 are evenly distributed and embedded in the positioning seat 14. The two positioning rods 13 can be driven to move toward the middle of the inside of the detection box 2 through the transmission mechanism, and then the plastic products can be squeezed and positioned by the positioning seat 14 and the positioning roller 15. The positioning seat 14 is an arc-shaped structure, and the positioning roller 15 drives the elasticity, so that plastic products of different shapes can be positioned and fixed.

[0035] The transmission mechanism includes a transmission gear 9, a first bevel gear 10, a transmission shaft 11, a second bevel gear 12, a movable seat 16 and a driving rod 18. A transmission groove 8 is provided on the base 1 at a position corresponding to the tooth plate 7. The transmission groove 8 is a groove of a rectangular structure. The transmission gear 9 is movably installed inside the transmission groove 8, and the transmission gear 9 and the tooth plate 7 are meshed with each other. The first bevel gear 10 is a cylindrical rod. The first bevel gear 10 is vertically movably installed inside the base 1. The transmission shaft 11 is fixedly installed on the transmission gear 9. There are two movable seats 16. Two movable grooves 17 are provided at the top of the base 1 corresponding to the position of the positioning mechanism. The two movable seats 16 are respectively movably installed inside the two movable grooves 17, and the movable seat 16 is movably connected to the positioning mechanism. The driving rod 18 is movably installed between the two movable grooves 17. Two opposite threads are provided on the driving rod 18. The driving rod 18 penetrates the two movable seats 16 and is threadedly connected to the movable seat 16 through two opposite threads. There are three second bevel teeth 12. The three second bevel teeth 12 are respectively installed at the upper and lower ends of the first bevel gear 10 and the driving rod 18 One end of the first bevel gear 10 is engaged with the transmission shaft 11 for transmission, and the second bevel gear 12 below the first bevel gear 10 is engaged with the second bevel gear 12 on the driving rod 18 for transmission. Through the setting of the transmission mechanism, when the impact rod 3 and the impact head 4 move downward to perform impact detection on the plastic product, the mounting plate 5 and the movable rod 6 will drive the tooth plate 7 to move downward on the base 1, and the tooth plate 7 is engaged with the transmission gear 9 for transmission, so that the transmission gear 9 will drive the transmission shaft 11 to rotate, and the transmission shaft 11 is engaged with the second bevel gear 12, so as to drive the first bevel gear 10 to rotate. The rotation of the first bevel gear 10 can drive the driving rod 18 to rotate through the second bevel gear 12, and the driving rod 18 is threadedly connected with the two movable seats 16 through two opposite threads, so that the two movable seats 16 can drive the positioning mechanism to move toward the middle of the detection box 2, so as to position the plastic product, so as to achieve the effect of automatically positioning and fixing the plastic product during impact, thereby improving the detection efficiency and avoiding the situation where the plastic product moves during impact and causes the detection failure;

[0036] A connecting block 19 is fixedly installed on the positioning rod 13. The connecting block 19 is a block of rectangular structure. The connecting block 19 penetrates the inner and outer side walls of the detection box 2. A mounting groove 20 is opened on the movable seat 16. The mounting groove 20 is a groove of cylindrical structure. A connecting rod 21 is movably installed inside the mounting groove 20. The connecting rod 21 is a cylindrical rod. One end of the connecting rod 21 is fixedly connected to the connecting block 19. A connecting spring 22 is sleeved on the connecting rod 21. The movable seat 16 and the positioning rod 13 are movably connected through the connecting block 19, the connecting rod 21 and the connecting spring 22. When the movable seat 16 drives the positioning rod 13 to move toward the plastic product, the positioning roller 15 moves with the plastic product, so that the connecting rod 21 will move toward the inside of the connecting spring 22, and the connecting spring 22 will be squeezed between the connecting block 19 and the movable seat 16. The connecting spring 22 will release the elastic force, and the plastic product can be fixed by the elastic force, avoiding the direct hard contact that causes the plastic product to be squeezed and damaged, thereby affecting the detection result.

[0037] like Figure 2 and Figure 5 As shown, the driving mechanism includes a driving rack 23, a driving shaft 25, a driving gear 26, an electric push rod 28, a limit block 29 and an impact spring 30. The driving rack 23 is a rectangular strip structure. The driving rack 23 is fixedly mounted on the side wall of the impact rod 3. A driving groove 24 is provided inside the base 1 at a position corresponding to the driving rack 23. The driving groove 24 is a groove of a rectangular structure. The driving shaft 25 is a cylindrical structure. The driving shaft 25 is movably installed inside the driving groove 24 by a motor. The driving gear 26 is fixedly sleeved on the driving shaft 25, and the driving gear 26 and the driving rack 23 are meshed for transmission. During detection, the driving shaft 25 and the driving gear 26 are driven to rotate by the motor, and the meshing between the driving gear 26 and the driving rack 23 will cause the impact rod 3 to move upward on the base 1. A plurality of positioning grooves 27 are provided on the side wall of the impact rod 3. The positioning grooves 27 are grooves of a rectangular structure. A plurality of positioning grooves 27 are evenly distributed, and the electric push rod 28 is embedded and installed inside the base 1. The limit block 29 is a block of trapezoidal structure. The limit block 29 is fixedly installed on the output end of the electric push rod 28. One end of the limit block 29 is located inside one of the positioning grooves 27, and the wall surface of one side of the limit block 29 located inside the positioning groove 27 is an inclined surface. The impact spring 30 is sleeved on the impact rod 3. When the impact rod 3 moves to the point where the limit block 29 is located inside one of the positioning grooves 27, the impact rod 3 will be limited. At this time, the impact spring 30 will also be squeezed and accumulated. Then the electric push rod 28 can be started, and the electric push rod 28 drives the limit block 29 to leave the inside of the positioning groove 27. At this time, the impact rod 3 loses its limit, and the impact rod 3 will move downward under the action of the impact spring 30, so that the plastic product can be impact tested. Since there are multiple positioning grooves 27, different intensities of detection can be performed.

[0038] like Figure 2 and Figure 4 As shown, the bottoms of the two positioning seats 14 located below are fixedly installed with pulley seats 31, and the pulley seats 31 are movably installed with pulleys 32 inside. The pulleys 32 are in contact with the wall surface of the base 1. Through the arrangement of the pulley seats 31 and the pulleys 32, when the positioning mechanism moves inside the detection box 2, the pulleys 32 will also rotate on the base 1, so that the movement of the positioning mechanism can be supported and the friction force can be reduced.

[0039] like Figure 1 , Figure 2 as well as Figure 6 As shown, a protective plate 33 is arranged on the outside of the detection box 2, and the protective plate 33 is a hollow rectangular structure. A slide groove 34 is opened on the outer wall of the detection box 2 at a position corresponding to the protective plate 33. The slide groove 34 is a groove of a rectangular structure. A slider 35 is arranged inside the slide groove 34. The slider 35 is a block of a rectangular structure. The slider 35 is fixedly connected to the protective plate 33. An air pipe 36 is fixedly installed on the base 1. The air pipe 36 is a hollow "L"-shaped structure. One end of the air pipe 36 passes through the bottom wall of the detection box 2 and is connected to the inside of the slide groove 34. An extrusion device is movably installed on the upper part of the air pipe 36. Rod 37, the extrusion rod 37 is a long rod with a rectangular structure, and the top of the extrusion rod 37 is fixedly connected to the tooth plate 7. When the tooth plate 7 moves downward, the extrusion rod 37 will move downward inside the air pipe 36, thereby squeezing the air inside the air pipe 36, so that the air moves to the inside of the slide groove 34, thereby blowing the slider 35 to move upward, and the slider 35 then drives the protective plate 33 to move upward. The protective plate 33 moves upward to protect the upper and surrounding areas of the detection box 2, thereby preventing the plastic products from being crushed during the detection, and the flying debris from causing damage to the human body or the surrounding area.

[0040] Specific implementation steps: by providing a transmission mechanism, when the impact rod 3 and the impact head 4 move downward to perform impact detection on the plastic product, the mounting plate 5 and the movable rod 6 will drive the tooth plate 7 to move downward on the base 1, and the tooth plate 7 and the transmission gear 9 are meshed for transmission, so that the transmission gear 9 will drive the transmission shaft 11 to rotate, and the transmission shaft 11 is meshed with the second bevel gear 12, thereby driving the first bevel gear 10 to rotate, and the rotation of the first bevel gear 10 can drive the driving rod 18 to rotate through the second bevel gear 12, and the driving rod 18 is threadedly connected to the two movable seats 16 through two opposite threads, so that the two movable seats 16 can drive the positioning mechanism to move toward the middle of the detection box 2, and then the plastic product can be positioned, achieving the effect of automatically positioning and fixing the plastic product during impact, improving the detection efficiency, and at the same time avoiding the occurrence of detection failure caused by the movement of the plastic product during impact;

[0041] By providing a positioning mechanism, the transmission mechanism can drive the two positioning rods 13 to move toward the middle of the interior of the detection box 2, and then the plastic product can be squeezed and positioned through the positioning seat 14 and the positioning roller 15. The positioning seat 14 is an arc-shaped structure, and the positioning roller 15 drives elasticity, so that plastic products of different shapes can be positioned and fixed.

[0042] The above description enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A biodegradable plastic product detection device, comprising a base (1), a detection box (2) fixedly installed at the bottom of the base (1), an impact rod (3) movably installed at the top of the base (1), and an impact head (4) fixedly installed at the bottom of the impact rod (3), characterized in that: The base (1) is provided with a driving mechanism, a mounting plate (5) is fixedly sleeved on the impact rod (3), a movable rod (6) is fixedly mounted on the mounting plate (5), a toothed plate (7) is fixedly mounted on the movable rod (6), the toothed plate (7) is in contact with the inner wall of the base (1), and a positioning mechanism and a transmission mechanism are provided inside the detection box (2); The transmission mechanism comprises a transmission gear (9), a first bevel gear (10), a transmission shaft (11), a second bevel gear (12), a movable seat (16) and a driving rod (18); a transmission groove (8) is provided on the base (1) at a position corresponding to the tooth plate (7); the transmission gear (9) is movably mounted inside the transmission groove (8), and the transmission gear (9) and the tooth plate (7) are meshed with each other; the first bevel gear (10) is vertically movably mounted inside the base (1); the transmission shaft (11) is fixedly mounted on the transmission gear (9); there are two movable seats (16); two movable seats (16) are provided at the top of the base (1) at a position corresponding to the positioning mechanism; The movable groove (17) comprises two movable seats (16) which are movably mounted inside the two movable grooves (17), and the movable seats (16) are movably connected to the positioning mechanism. The driving rod (18) is movably mounted between the two movable grooves (17). There are three second bevel teeth (12) in total. The three second bevel teeth (12) are respectively mounted on the upper and lower ends of the first bevel teeth (10) and one end of the driving rod (18). The second bevel teeth (12) above the first bevel teeth (10) are meshed with the transmission shaft (11) for transmission, and the second bevel teeth (12) below the first bevel teeth (10) are meshed with the second bevel teeth (12) on the driving rod (18) for transmission.

2. A biodegradable plastic product detection device according to claim 1, characterized in that: The positioning mechanism comprises a positioning rod (13), a positioning seat (14) and a positioning roller (15). There are two positioning rods (13) in total. The two positioning rods (13) are symmetrically arranged inside the detection box (2). The positioning seat (14) is an arc-shaped structure. There are four positioning seats (14) in total. The four positioning seats (14) are respectively fixedly mounted on the two positioning rods (13). There are multiple positioning rollers (15) in total. The multiple positioning rollers (15) are evenly distributed and embedded in the positioning seat (14).

3. A biodegradable plastic product detection device according to claim 1, characterized in that: The driving rod (18) is provided with two opposite threads. The driving rod (18) passes through the two movable seats (16) and is threadedly connected to the movable seats (16) via the two opposite threads.

4. A biodegradable plastic product detection device according to claim 2, characterized in that: A connecting block (19) is fixedly mounted on the positioning rod (13), and the connecting block (19) penetrates the inner and outer side walls of the detection box (2). A mounting groove (20) is provided on the movable seat (16), and a connecting rod (21) is movably mounted inside the mounting groove (20). One end of the connecting rod (21) is fixedly connected to the connecting block (19), and a connecting spring (22) is sleeved on the connecting rod (21). The movable seat (16) and the positioning rod (13) are movably connected via the connecting block (19), the connecting rod (21) and the connecting spring (22).

5. The biodegradable plastic product detection device according to claim 1, characterized in that: The driving mechanism comprises a driving rack (23), a driving shaft (25), a driving gear (26), an electric push rod (28), a limit block (29) and an impact spring (30); the driving rack (23) is fixedly mounted on the side wall of the impact rod (3); a driving groove (24) is provided inside the base (1) at a position corresponding to the driving rack (23); the driving shaft (25) is movably mounted inside the driving groove (24) through a motor; the driving gear (26) is fixedly sleeved on the driving shaft (25), and the driving gear (26) and the driving rack (23) are meshed and transmitted.

6. A biodegradable plastic product detection device according to claim 5, characterized in that: The side wall of the impact rod (3) is provided with a plurality of positioning grooves (27), the plurality of positioning grooves (27) are evenly distributed, the electric push rod (28) is embedded and installed inside the base (1), the limit block (29) is fixedly installed on the output end of the electric push rod (28), one end of the limit block (29) is located inside one of the positioning grooves (27), and a side wall surface of the limit block (29) located inside the positioning groove (27) is an inclined surface, and the impact spring (30) is sleeved on the impact rod (3).

7. The biodegradable plastic product detection device according to claim 2, characterized in that: The bottoms of the two positioning seats (14) located at the bottom are fixedly mounted with pulley seats (31), and pulleys (32) are movably mounted inside the pulley seats (31), and the pulleys (32) are in contact with the wall surface of the base (1).

8. The biodegradable plastic product detection device according to claim 1, characterized in that: A protective plate (33) is arranged on the outer side of the detection box (2); a slide groove (34) is provided on the outer wall of the detection box (2) at a position corresponding to the protective plate (33); a slider (35) is arranged inside the slide groove (34); the slider (35) is fixedly connected to the protective plate (33); and an air pipe (36) is fixedly installed on the base (1).

9. A biodegradable plastic product detection device according to claim 8, characterized in that: One end of the air pipe (36) passes through the bottom wall of the detection box (2) and is connected to the inside of the slide groove (34). An extrusion rod (37) is movably installed on the upper part of the air pipe (36), and the top of the extrusion rod (37) is fixedly connected to the tooth plate (7).

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