Compression resistance detection device and method for high-strength chemical plastic bucket with honeycomb reinforcing ribs

Abstract

The invention discloses a compression resistance detection device and method for a high-strength chemical plastic barrel with honeycomb-shaped reinforcing ribs, and relates to the technical field of compression resistance detection, the compression resistance detection device comprises a pressure module, the pressure module comprises a pressure plate, the pressure plate is provided with a flexible mechanism used for adaptively wrapping and fitting a honeycomb-shaped curved surface of a barrel top, large-area and uniform load distribution is realized, and the compression resistance of the high-strength chemical plastic barrel is improved. The flexible mechanism comprises an attaching unit and a synchronizing unit, the attaching unit is arranged below the pressing plate, and the attaching unit is inflated by arranging an air bag and combining with a pneumatic assembly, so that the attaching unit can expand in a self-adaptive mode and is tightly attached to the complex curved surface structure of the top of the high-strength chemical plastic barrel with the honeycomb-shaped reinforcing ribs. According to the flexible contact mode, point and line concentrated loads of a traditional rigid flat plate are converted into large-area and evenly-distributed loads, the phenomena of flattening, cracking or stress whitening of the tops of the ribs caused by pressure concentration are effectively avoided, and therefore the accuracy and reliability of a compression resistance detection result are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of pressure resistance testing technology, specifically to a pressure resistance testing device and method for high-strength chemical plastic drums with honeycomb reinforcing ribs. Background Technology

[0002] High-strength chemical plastic drums with honeycomb-shaped reinforcing ribs incorporate a honeycomb-shaped reinforcing structure. The honeycomb structure, a highly efficient and stable form found in nature, is cleverly applied to the drum's design. It consists of closely arranged hexagonal units; this unique geometry evenly distributes the pressure it bears, acting like countless tiny support points to disperse external impacts or pressures throughout the drum, preventing damage caused by localized stress concentration.

[0003] According to the patent titled "A Plastic Bucket Strength Testing Device" (Patent Publication No.: CN221303031U, Patent Publication Date: 2024-07-09), the device includes a base, a servo motor externally mounted on the base, a screw fixedly connected to the servo motor, two symmetrically distributed clamping plates externally threaded to the screw, and a connecting rod slidably connected to the clamping plates. Two symmetrically distributed support rods are fixedly connected to the top of the base, and a top plate is fixedly connected to the end of each support rod furthest from the base. A hydraulic cylinder is mounted on the top of the top plate, a sliding plate is externally mounted on the hydraulic cylinder, a drive motor is fixedly connected to the external of the sliding plate, a threaded rod is fixedly connected to the external of the drive motor, and two pressure hammers are threadedly connected to the external of the threaded rod. A pressure sensor is mounted on the inner bottom of each pressure hammer, and a support rod is slidably connected to the external of each pressure hammer. This device can test plastic buckets of different sizes simultaneously, and can test multiple plastic buckets at once, thereby improving testing efficiency.

[0004] Based on the aforementioned existing technology, current pressure testing devices and methods for high-strength chemical plastic drums with honeycomb reinforcing ribs still have the following problems: the edge or corner of the rigid plate will first contact the top protrusion of the honeycomb reinforcing ribs, forming line contact or small surface contact. In the initial stage of pressurization, the huge pressure will be concentrated on a few ribs, which can easily cause the top of the ribs to be locally flattened, cracked, or produce whitening stress whitening phenomenon, resulting in serious distortion of test results. Therefore, this invention provides a pressure testing device and method for high-strength chemical plastic drums with honeycomb reinforcing ribs. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a pressure testing device and method for high-strength chemical plastic drums with honeycomb reinforcing ribs. This solves the problem that the edges or corners of rigid plates will first contact the top protrusions of the honeycomb reinforcing ribs, forming line or small-area contact. Furthermore, the initial pressure concentration on a few ribs during pressurization can easily cause the tops of the ribs to flatten, crack, or whiten, resulting in severely distorted test results.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a pressure testing device and method for high-strength chemical plastic drums with honeycomb-shaped reinforcing ribs, comprising a pressure module, wherein the pressure module includes a pressure plate, and the pressure plate is provided with a flexible mechanism for adaptively wrapping and conforming to the honeycomb-shaped curved surface of the drum top, thereby achieving a large-area, uniformly distributed load. The flexible mechanism includes: The bonding unit is located below the pressure plate and includes a base plate. An airbag is fixedly installed at the bottom of the base plate through a connecting component. The airbag is inflated by a pneumatic component to achieve flexible bonding of the airbag to the top of the barrel. The airbag can be quickly disassembled by the connecting component. The synchronization unit, located above the pressure plate, enables rapid separation between the connecting components and the base plate.

[0007] Preferably, a plurality of reinforcing plastic strips are fixedly installed at the top of the inner cavity of the airbag, and the radial extension strength of the airbag is achieved by the reinforcing plastic strips.

[0008] Preferably, the pneumatic component includes an air pump, and a connecting pipe is fixedly installed at the output end of the air pump. A pressure gauge is installed on the connecting pipe to detect the internal air pressure of the airbag, thereby realizing the pressure resistance test of the plastic bucket. A fixing pipe is installed at one end of the connecting pipe through a threaded connector, and the fixing pipe is fixedly connected to the airbag.

[0009] Preferably, the connecting assembly includes a main rod, and the main rod has a slot inside, and a side rod is slidably installed on the slot. The side rod has several positioning slots, and several top rings are fixedly installed above the airbag. The top rings are installed inside the positioning slots to facilitate the replacement of the airbag.

[0010] Preferably, the side rod has a slot in the middle, the main rod has a slot, and a fixed seat is fixedly installed in the middle of the rectangular slot. Limiting posts are fixedly installed on both sides of the fixed seat, and a plug rod is slidably installed on the limiting post. A push-pull rod is fixedly installed at the top end of the plug rod. The end of the plug rod away from the push-pull rod is inserted into the slot to fix the position of the side rod. The bottom of the base plate has an installation groove, and the main rod and the side rod are fixedly installed in the installation groove through a synchronization unit. A top cover is fixedly installed in the rectangular groove, and the top cover is fixed to the fixed seat with bolts. A spring is installed on the surface of the limiting post, and the spring is located between the fixed seat and the plug rod to reset the plug rod.

[0011] Preferably, the synchronization unit includes four fixed components disposed on the top of the pressure plate, and a rotating seat is fixedly installed on the top of the pressure plate, and a gear ring is fixedly installed on the top of the rotating seat by bolts. A protective shell and a cover plate are fixedly installed on the top of the pressure plate to protect the fixed components and the gear ring. A small motor is fixedly installed on the top of the cover plate, and the output shaft of the small motor passes through the cover plate and is fixedly installed with a drive gear. The drive gear and the gear ring are meshed and installed so that the small motor drives the drive gear and the gear ring to rotate, thereby realizing the synchronous drive of the fixed components.

[0012] Preferably, the fixing component includes a screw that is threaded through the pressure plate and the base plate and rotatably installed into the threaded hole at the top of the side rod. A rotating seat is fixedly installed on the top of the pressure plate by bolts, and a rotating sleeve is rotatably installed inside the rotating seat. A limit groove is opened on one side of the screw, and a limit block is fixedly installed on the inner side of the rotating sleeve. The limit block slides inside the limit groove, so that the screw can slide up and down on the top of the rotating sleeve.

[0013] Preferably, a connecting gear is fixedly installed on the surface of the rotating sleeve, and the connecting gear is meshed with the gear ring. The gear ring drives the four connecting gears to rotate synchronously, so as to realize the synchronous rotation and up and down movement of the screw, and realize the quick assembly and disassembly between the main rod, the side rod and the base plate.

[0014] Preferably, the pressure module further includes a base, a support frame fixedly mounted on the top of the base, and two sprocket seats fixedly mounted on the bottom of the two push rods on the support frame. A set of first shaft seats is fixedly mounted on the bottom of the inner cavity of the base, and a first shaft column is rotatably mounted inside the first shaft seats. Sprockets are fixedly mounted on both ends of the first shaft column, and a chain is installed between the sprockets and the sprocket seats. The pressure plate is fixedly mounted on the chain through a connecting block. The pressure plate is raised and lowered by rotating the chain. A reducer is fixedly mounted on the bottom of the inner cavity of the base, and a servo motor is fixedly mounted on one end of the reducer. The other end of the reducer is fixedly connected to a linkage gear seat. A set of second shaft seats is fixedly installed at the bottom of the inner cavity of the base. A second shaft column is rotatably installed inside the second shaft seat. A linkage gear is fixedly installed on the surface of the second shaft column. The linkage gear meshes with the gear inside the linkage gear seat. Small bevel teeth are fixedly installed at both ends of the second shaft column. Large bevel teeth are fixedly installed on the surface of the first shaft column. The large bevel teeth mesh with the small bevel teeth. Guide wheels are fixedly installed at the four corners above the pressure plate. The guide wheels contact the uprights of the support frame to limit the movement of the pressure plate.

[0015] This invention also discloses an operating method for a pressure resistance testing device for high-strength chemical plastic drums with honeycomb reinforcing ribs, comprising the following steps: S1: Place the high-strength chemical plastic barrel with honeycomb reinforcing ribs to be tested on the base of the pressure module, and position the top of the barrel directly below the flexible mechanism; S2: Activate the pressure module to drive the pressure plate to move downward, so that the flexible mechanism approaches and contacts the honeycomb curved surface of the top of the barrel; S3: The airbag is inflated by the fitting unit of the flexible mechanism, so that it expands flexibly and adaptively wraps and fits the honeycomb structure on the top of the barrel, forming a large area of ​​uniformly distributed load contact surface. S4: Continue to press down the pressure plate, and apply pressure to the top of the plastic bucket through the flexible mechanism to conduct a pressure resistance test; S5: After the test is completed, release the air pressure inside the airbag, lift the pressure plate, and remove the plastic bucket.

[0016] This invention provides a device and method for testing the compressive strength of high-strength chemical plastic drums with honeycomb reinforcing ribs. Compared with the prior art, it has the following advantages: 1. The pressure testing device and method for high-strength chemical plastic drums with honeycomb-shaped reinforcing ribs utilizes an airbag inflated using pneumatic components. This airbag adaptively expands and tightly conforms to the complex curved surface structure of the top of the high-strength chemical plastic drum with honeycomb-shaped reinforcing ribs. This flexible contact method transforms the point and line concentrated loads of traditional rigid plates into large-area, uniformly distributed loads, effectively avoiding the flattening, cracking, or stress whitening of the rib tops caused by pressure concentration. This significantly improves the accuracy and reliability of the pressure testing results.

[0017] 2. The pressure testing device and method for high-strength chemical plastic drums with honeycomb reinforcing ribs adopts a cooperative structure of main rod, side rod, positioning groove, and top ring. The side rod can be locked and released by pushing and pulling the insertion rod. This design allows the airbag to quickly engage or disengage from the positioning groove via its top ring, enabling convenient installation and disassembly of the airbag. This not only facilitates the replacement of airbags with suitable ones according to the drum size but also simplifies the maintenance process and improves the versatility and efficiency of the testing device. 3. The pressure resistance testing device and method for the high-strength chemical plastic drum with honeycomb reinforcing ribs utilizes a small motor to drive a drive gear that meshes with a gear ring, which in turn synchronously drives four connecting gears to rotate, thereby driving the screws in the four fixed components to rise and fall synchronously. This synchronous drive mechanism ensures rapid, smooth, and synchronous separation and locking between the connecting components and the base plate, avoiding mechanism jamming or damage caused by uneven force at a single point, and greatly improving the automation level and operational stability of the overall assembly and disassembly of the airbag and connecting components. Attached Figure Description

[0018] Figure 1 This is a right-side perspective view of the present invention. Figure 2 This is a partial three-dimensional structural diagram of the present invention; Figure 3 This is a top-view perspective view of the flexible mechanism of the present invention. Figure 4 This is a bottom-view perspective view of the flexible mechanism of the present invention. Figure 5 This is a partial hidden bottom perspective view of the flexible mechanism of the present invention. Figure 6 This is a partial cross-sectional, split bottom-view perspective view of the flexible mechanism of the present invention. Figure 7 This is a split top-view perspective structural diagram of the connecting component of the present invention; Figure 8 This is a partially disassembled three-dimensional structural diagram of the connecting component of the present invention; Figure 9 This is a three-dimensional structural diagram of the synchronization unit of the present invention. Figure 10 This is a three-dimensional structural diagram of the fixed component of the present invention.

[0019] In the diagram: 1. Pressure module; 11. Base; 12. Support frame; 13. First shaft seat; 14. First shaft column; 15. Large bevel gear; 16. Sprocket; 17. Sprocket seat; 18. Chain; 19. Connecting block; 110. Pressure plate; 111. Guide wheel; 112. Reducer; 113. Servo motor; 114. Linkage gear seat; 115. Second shaft seat; 116. Second shaft column; 117. Linkage gear; 118. Small bevel gear; 2. Flexible mechanism; 21. Fitting unit; 211. Base plate; 212. Airbag; 213. Reinforcing plastic strip; 214. Top ring; 22. Synchronization unit; 221. Rotary seat; 222. Gear ring 223. Cover plate; 224. Small motor; 225. Drive gear; 226. Protective shell; 3. Connecting assembly; 31. Mounting slot; 32. Main rod; 33. Slot; 34. Side rod; 35. Positioning slot; 36. Slot; 37. Rectangular slot; 38. Fixing base; 39. Top cover; 310. Limiting post; 311. Insert rod; 312. Push-pull rod; 313. Spring; 4. Fixing assembly; 41. Screw; 42. Rotary seat; 43. Rotating sleeve; 44. Limiting slot; 45. Limiting block; 46. Connecting gear; 5. Pneumatic assembly; 51. Air pump; 52. Connecting pipe; 53. Pressure gauge; 54. Connector; 55. Fixing pipe. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figures 1-10The present invention provides a technical solution: A pressure resistance testing device and method for high-strength chemical plastic drums with honeycomb-shaped reinforcing ribs, comprising a pressure module 1, wherein the pressure module 1 includes a pressure plate 110, and a flexible mechanism 2 is provided on the pressure plate 110 for adaptively wrapping and conforming to the honeycomb-shaped curved surface of the drum top to achieve large-area, uniformly distributed load. The flexible mechanism 2 includes: The bonding unit 21 is located below the pressure plate 110 and includes a base plate 211. An airbag 212 is fixedly installed at the bottom of the base plate 211 through a connecting component 3. The airbag 212 is inflated inside by a pneumatic component 5 to achieve flexible bonding of the airbag 212 to the top of the barrel. The airbag 212 can be quickly disassembled by the connecting component 3. Synchronization unit 22 is located above pressure plate 110 to enable rapid separation between connecting component 3 and base plate 211.

[0022] In this embodiment, a number of reinforcing plastic strips 213 are fixedly installed on the top of the inner cavity of the airbag 212, and the radial extension strength of the airbag 212 is achieved by the reinforcing plastic strips 213.

[0023] By fixing several reinforcing plastic strips 213 to the top of the inner cavity of the airbag 212, the radial structural strength and shape retention of the airbag 212 during inflation are enhanced. This allows the airbag 212 to better resist localized excessive deformation caused by uneven pressure when conforming to the honeycomb curved surface of the barrel top, ensuring a more uniform load distribution, thereby improving the stability of the test and the service life of the airbag 212 itself.

[0024] In this embodiment, the pneumatic component 5 includes an air pump 51, and a connecting pipe 52 is fixedly installed at the output end of the air pump 51. A pressure gauge 53 is provided on the connecting pipe 52 to detect the internal air pressure of the airbag 212, thereby realizing the pressure resistance test of the plastic bucket. A fixing pipe 55 is threadedly connected to one end of the connecting pipe 52 through a connector 54, and the fixing pipe 55 is fixedly connected to the airbag 212.

[0025] The air pump 51 uses an oil-free silent air compressor to provide a stable air source. The connector 54 uses a quick-connect fitting for easy connection and disconnection. The air bag 212 is made of high-strength rubber composite material, which has good flexibility and pressure resistance. The pressure gauge 53 uses a pointer-type pressure gauge with an accuracy class of 1.6.

[0026] Through the coordinated operation of the air pump 51, connecting pipe 52, pressure gauge 53, connector 54, and fixing pipe 55, a complete and controllable inflation and pressure monitoring system is formed. This system not only provides a stable and adjustable air pressure source for the airbag 212, allowing it to flexibly fit the top of the bucket, but also monitors and provides real-time feedback on the pressure value inside the airbag 212 via the pressure gauge 53. This provides crucial and direct quantitative data for evaluating the pressure resistance of the plastic bucket, improving the accuracy and operability of the test.

[0027] In this embodiment, the connecting component 3 includes a main rod 32, and a slot 33 is provided inside the main rod 32. A side rod 34 is slidably mounted on the slot 33, and a plurality of positioning slots 35 are provided on the side rod 34. A plurality of top rings 214 are fixedly mounted above the airbag 212, and the top rings 214 are installed inside the positioning slots 35 to facilitate the replacement of the airbag 212. A slot 36 is provided in the middle of the side rod 34, and a slot 36 is provided in the middle of the main rod 32. A fixing seat 38 is fixedly mounted in the middle of the rectangular slot 37, and limit posts 310 are fixedly mounted on both sides of the fixing seat 38. Insert rods are slidably mounted on the limit posts 310. 311, and a push-pull rod 312 is fixedly installed at the top end of the insertion rod 311. The end of the insertion rod 311 away from the push-pull rod 312 is inserted into the interior of the slot 36 to fix the position of the side rod 34. The bottom of the base plate 211 is provided with an installation groove 31. The main rod 32 and the side rod 34 are fixedly installed inside the installation groove 31 through the synchronization unit 22. The top cover 39 is fixedly installed inside the rectangular groove 37. The top cover 39 is fixed to the fixed seat 38 by bolts. A spring 313 is installed on the surface of the limiting post 310. The spring 313 is located between the fixed seat 38 and the insertion rod 311 to realize the reset of the insertion rod 311.

[0028] Through the ingenious design of the main rod 32, the slot 33, the side rod 34, the positioning slot 35, and the top ring 214, the airbag 212 can be quickly installed and removed. The top ring 214 on top of the airbag 212 can be easily inserted into the positioning slot 35 of the side rod 34, while the side rod 34 can slide and adjust along the slot 33. This modular snap-fit ​​method greatly simplifies the replacement process of the airbag 212, enabling the testing device to quickly adapt to the testing needs of plastic barrels of different sizes, and improving the flexibility and maintenance efficiency of the equipment.

[0029] In this embodiment, the synchronization unit 22 includes four fixing components 4 disposed on the top of the pressure plate 110. A rotating seat 221 is fixedly installed on the top of the pressure plate 110, and a gear ring 222 is fixedly installed on the top of the rotating seat 221 by bolts. A protective shell 226 and a cover plate 223 are fixedly installed on the top of the pressure plate 110 to protect the fixing components 4 and the gear ring 222. A small motor 224 is fixedly installed on the top of the cover plate 223. The output shaft of the small motor 224 passes through the cover plate 223 and a drive gear 225 is fixedly installed thereon. The drive gear 225 and the gear ring 222 are meshed together, and the small motor 224 drives the drive gear 225 and the gear ring 222 to rotate, thereby realizing the synchronous driving of the fixing components 4.

[0030] The small motor 224 is a 24V DC geared motor with high torque and controllable speed. The synchronization unit 22 integrates the small motor 224, drive gear 225, gear ring 222, and multiple fixed components 4, forming a centralized drive and synchronous execution mechanical linkage system. This design can synchronously control the movement of multiple actuator screws 41 through the small motor 224, realizing rapid and synchronous locking and disengagement between the connecting component 3 and the base plate 211. This avoids the tediousness and asynchronous risks of manual operation, significantly improving the automation level, efficiency, and reliability of the device operation.

[0031] In this embodiment, the fixing component 4 includes a screw 41 that is threaded through the pressure plate 110 and the base plate 211 and rotatably installed into the threaded hole at the top of the side rod 34. The top of the pressure plate 110 is fixedly installed with a rotating seat 42 by bolts, and a rotating sleeve 43 is rotatably installed inside the rotating seat 42. A limiting groove 44 is opened on one side of the screw 41, and a limiting block 45 is fixedly installed on the inner side of the rotating sleeve 43. The limiting block 45 slides inside the limiting groove 44, so that the screw 41 slides up and down on the top of the rotating sleeve 43.

[0032] In this embodiment, a connecting gear 46 is fixedly installed on the surface of the rotating sleeve 43, and the connecting gear 46 is meshed with the gear ring 222. The gear ring 222 drives the four connecting gears 46 to rotate synchronously, thereby realizing the synchronous rotation and up-and-down movement of the screw 41, and enabling quick assembly and disassembly between the main rod 32, the side rod 34 and the base plate 211.

[0033] In this embodiment, the pressure module 1 further includes a base 11. A support frame 12 is fixedly installed on the top of the base 11, and two sprocket seats 17 are fixedly installed at the bottom of the two push rods on the support frame 12. A set of first shaft seats 13 is fixedly installed at the bottom of the inner cavity of the base 11, and a first shaft column 14 is rotatably installed inside the first shaft seat 13. Sprockets 16 are fixedly installed at both ends of the first shaft column 14, and a chain 18 is installed between the sprockets 16 and the sprocket seats 17. The pressure plate 110 is fixedly installed on the chain 18 through a connecting block 19. The pressure plate 110 is raised and lowered by rotating the chain 18. A reducer 112 is fixedly installed at the bottom of the inner cavity of the base 11, and a servo motor 113 is fixedly installed at one end of the reducer 112. The other end of the speed machine 112 is fixedly connected to a linkage gear seat 114. A set of second shaft seats 115 is fixedly installed at the bottom of the inner cavity of the base 11. A second shaft column 116 is rotatably installed inside the second shaft seat 115. A linkage gear 117 is fixedly installed on the surface of the second shaft column 116. The linkage gear 117 meshes with the gear inside the linkage gear seat 114. Small bevel teeth 118 are fixedly installed at both ends of the second shaft column 116. Large bevel teeth 15 are fixedly installed on the surface of the first shaft column 14. The large bevel teeth 15 mesh with the small bevel teeth 118. Guide wheels 111 are fixedly installed at the four corners above the pressure plate 110. The guide wheels 111 contact the upright of the support frame 12 to limit the movement of the pressure plate 110.

[0034] The servo motor 113 is a Yaskawa servo motor of model MHMD082G1U, with a built-in encoder for precise position and speed control. The reducer 112 uses a Shinbo reducer to reduce speed and increase output torque. The chain 18 uses an ISO 606 standard 08B-1 roller chain, which has strong load-bearing capacity and smooth operation. A stable and reliable lifting drive mechanism for the pressure plate 110 is constructed from components such as the base 11, support frame 12, servo motor 113, reducer 112, chain 18, and sprocket 16. This mechanism utilizes the servo motor 113 to provide precise power, which, after reduction and torque amplification, is converted into smooth vertical movement of the pressure plate 110 via chain transmission. This provides a stable, controllable, and powerful downward pressure source for the entire pressure testing process, which is fundamental to ensuring the smooth progress of the testing process.

[0035] This invention also discloses an operating method for a pressure resistance testing device for high-strength chemical plastic drums with honeycomb reinforcing ribs, comprising the following steps: S1: Place the high-strength chemical plastic barrel with honeycomb reinforcing ribs to be tested on the base 11 of the pressure module 1, and position the top of the barrel directly below the flexible mechanism 2. S2: Start pressure module 1, drive pressure plate 110 to move downward, so that flexible mechanism 2 approaches and contacts the honeycomb curved surface of the top of the barrel; S3: The airbag 212 is inflated by the fitting unit 21 of the flexible mechanism 2, so that it expands flexibly and adaptively wraps and fits the honeycomb structure on the top of the barrel, forming a large area of ​​uniformly distributed load contact surface. S4: Continue to press down the pressure plate 110, and apply pressure to the top of the plastic bucket through the flexible mechanism 2 to conduct a pressure resistance test; S5: After the test is completed, release the internal air pressure of the airbag 212, raise the pressure plate 110, and remove the plastic bucket.

[0036] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0037] During operation, firstly, the plastic bucket is placed on the base 11. The servo motor 113 drives the internal gear of the linkage gear seat 114 to rotate through the reducer 112. The linkage gear seat 114 adjusts the second shaft column 116 and the small bevel gear 118 to rotate through the linkage gear 117. The small bevel gear 118 drives the first shaft column 14 to rotate through the large bevel gear 15. The first shaft column 14 drives the two sprockets 16 to rotate. The sprockets 16 drive the chain 18 to rotate through the sprocket seat 17. The chain 18 drives the pressure plate 110 to move down through the connecting block 19. Next, as the pressure plate 110 moves down, the air pump 51 operates to inflate the inside of the airbag 212 through the connecting pipe 52, the connector 54, and the fixing pipe 55. The airbag 212 flexibly presses against the top of the barrel, and the pressure plate 110 presses down, pressing the barrel body down through the airbag 212. The air pressure inside the airbag 212 is detected through the connecting pipe 52 to achieve pressure resistance testing. Then, when replacing the airbag 212, the small motor 224 runs and drives the drive gear 225 to rotate. The drive gear 225 drives the four connecting gears 46 to rotate synchronously through the gear ring 222. The connecting gears 46 drive the rotating sleeve 43 to rotate. The rotating sleeve 43 drives the screw 41 to rotate through the limit block 45. The screw 41 rotates out of the threaded hole above the side rod 34. Finally, by pulling the two push-pull rods 312, the insertion rod 311 is pulled, causing the insertion rod 311 to compress the spring 313. One end of the insertion rod 311 moves out of the slot 36. The two side rods 34 are pulled, causing the left side of the side rod 34 to move out of the top ring 214 and the top ring 214 on the right side above the airbag 212 to move out of the surface of the side rod 34. The top ring 214 on the right side above the new airbag 212 is installed in the positioning groove 35 on the side rod 34. The side rod 34 is pushed to move, so that the left end of the side rod 34 is inserted into the top ring 214 on the left side above the airbag 212. At the same time, the spring 313 pushes the insertion rod 311 to move through its own elasticity. The insertion rod 311 slides into the slot 36, fixing the position of the side rod 34. Then, the main rod 32 and the side rod 34 are installed in the mounting groove 31 and fixed by the synchronization unit 22.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pressure testing device for high-strength chemical plastic drums with honeycomb reinforcing ribs, comprising a pressure module (1), wherein the pressure module (1) includes a pressure plate (110), characterized in that: The pressure plate (110) is provided with a flexible mechanism (2) for adaptively wrapping and conforming to the honeycomb curved surface of the top of the barrel, so as to achieve a large area and uniform load distribution. The flexible mechanism (2) includes: The bonding unit (21) is located below the pressure plate (110) and includes a base plate (211). An airbag (212) is fixedly installed at the bottom of the base plate (211) through a connecting component (3). The airbag (212) is inflated by a pneumatic component (5) to achieve flexible bonding of the airbag (212) to the top of the barrel. The airbag (212) can be quickly disassembled by the connecting component (3). The synchronization unit (22) is located above the pressure plate (110) to enable rapid separation between the connecting component (3) and the base plate (211).

2. The pressure testing device for high-strength chemical plastic drums with honeycomb reinforcing ribs according to claim 1, characterized in that: Several reinforcing plastic strips (213) are fixedly installed on the top of the inner cavity of the airbag (212), and the radial extension strength of the airbag (212) is achieved by the reinforcing plastic strips (213).

3. The pressure testing device for high-strength chemical plastic drums with honeycomb reinforcing ribs according to claim 1, characterized in that: The pneumatic component (5) includes an air pump (51), and a connecting pipe (52) is fixedly installed at the output end of the air pump (51). A pressure gauge (53) is installed on the connecting pipe (52) to detect the internal air pressure of the airbag (212) and realize the pressure resistance test of the plastic bucket. A fixing pipe (55) is threadedly connected to one end of the connecting pipe (52) through a connector (54), and the fixing pipe (55) is fixedly connected to the airbag (212).

4. The pressure testing device for high-strength chemical plastic drums with honeycomb reinforcing ribs according to claim 1, characterized in that: The connecting component (3) includes a main rod (32), and a slot (33) is provided inside the main rod (32). A side rod (34) is slidably installed on the slot (33), and a number of positioning slots (35) are provided on the side rod (34). A number of top rings (214) are fixedly installed on the top of the airbag (212), and the top rings (214) are installed inside the positioning slots (35) to facilitate the replacement of the airbag (212).

5. The pressure testing device for high-strength chemical plastic drums with honeycomb reinforcing ribs according to claim 4, characterized in that: The side rod (34) has a slot (36) in the middle, the main rod (32) has a slot (36) in the middle, and a fixed seat (38) is fixedly installed in the middle of the rectangular groove (37). Limiting posts (310) are fixedly installed on both sides of the fixed seat (38), and a plug rod (311) is slidably installed on the limiting post (310). A push-pull rod (312) is fixedly installed at one end of the top of the plug rod (311). The end of the plug rod (311) away from the push-pull rod (312) is inserted into the interior of the slot (36) to realize the movement of the side rod (34). The position of the base plate (211) is fixed, and the bottom of the base plate (211) is provided with an installation groove (31). The main rod (32) and the side rod (34) are fixedly installed inside the installation groove (31) through the synchronization unit (22). The top cover (39) is fixedly installed inside the rectangular groove (37), and the top cover (39) is fixed to the fixed seat (38) by bolts. The surface of the limiting post (310) is equipped with a spring (313), and the spring (313) is located between the fixed seat (38) and the insertion rod (311) to realize the reset of the insertion rod (311).

6. The pressure testing device for high-strength chemical plastic drums with honeycomb reinforcing ribs according to claim 1, characterized in that: The synchronization unit (22) includes four fixed components (4) set on the top of the pressure plate (110), and a rotating seat (221) is fixedly installed on the top of the pressure plate (110), and a gear ring (222) is fixedly installed on the top of the rotating seat (221) by bolts. A protective shell (226) and a cover plate (223) are fixedly installed on the top of the pressure plate (110) to protect the fixed components (4) and the gear ring (222). A small motor (224) is fixedly installed on the top of the cover plate (223), and the output shaft of the small motor (224) passes through the cover plate (223) and is fixedly installed with a drive gear (225). The drive gear (225) and the gear ring (222) are meshed and installed so that the drive gear (225) and the gear ring (222) are driven by the small motor (224) to rotate, thereby realizing the synchronous drive of the fixed components (4).

7. The pressure testing device for high-strength chemical plastic drums with honeycomb reinforcing ribs according to claim 6, characterized in that: The fixing component (4) includes a screw (41) that is threaded through the pressure plate (110) and the base plate (211) and rotatably installed into the threaded hole at the top of the side rod (34). The top of the pressure plate (110) is fixedly installed with a rotating seat (42) by bolts. A rotating sleeve (43) is rotatably installed inside the rotating seat (42). A limit groove (44) is opened on one side of the screw (41). A limit block (45) is fixedly installed on the inner side of the rotating sleeve (43). The limit block (45) slides inside the limit groove (44), so that the screw (41) can slide up and down on the top of the rotating sleeve (43).

8. The pressure testing device for high-strength chemical plastic drums with honeycomb reinforcing ribs according to claim 7, characterized in that: The surface of the rotating sleeve (43) is fixedly mounted with a connecting gear (46), and the connecting gear (46) is meshed with the gear ring (222). The gear ring (222) drives the four connecting gears (46) to rotate synchronously, thereby realizing the synchronous rotation and up-down movement of the screw (41) and realizing the quick assembly and disassembly between the main rod (32), the side rod (34) and the base plate (211).

9. The pressure testing device for high-strength chemical plastic drums with honeycomb reinforcing ribs according to claim 1, characterized in that: The pressure module (1) also includes a base (11), on which a support frame (12) is fixedly installed. Two sprocket seats (17) are fixedly installed at the bottom of the two push rods on the support frame (12). A set of first shaft seats (13) is fixedly installed at the bottom of the inner cavity of the base (11). A first shaft column (14) is rotatably installed inside the first shaft seat (13). Sprockets (16) are fixedly installed at both ends of the first shaft column (14). A chain (18) is installed between the sprocket (16) and the sprocket seat (17). The pressure plate (110) is fixedly installed on the chain (18) via a connecting block (19). The pressure plate (110) is raised and lowered by rotating the chain (18). A reducer (112) is fixedly installed at the bottom of the inner cavity of the base (11), and a servo motor (113) is fixedly installed at one end of the reducer (112). The other end of the reducer (112) is fixedly connected to a linkage gear seat (114). A set of second shaft seats (115) is fixedly installed at the bottom of the inner cavity of the base (11). A second shaft column (116) is rotatably installed inside the second shaft seat (115). A linkage gear (117) is fixedly installed on the surface of the second shaft column (116). The linkage gear (117) meshes with the gear inside the linkage gear seat (114). Small bevel teeth (118) are fixedly installed at both ends of the second shaft column (116). Large bevel teeth (15) are fixedly installed on the surface of the first shaft column (14). The large bevel teeth (15) mesh with the small bevel teeth (118). Guide wheels (111) are fixedly installed at the four corners above the pressure plate (110). The guide wheels (111) contact the uprights of the support frame (12) to limit the movement of the pressure plate (110).

10. The operating method of the pressure testing device for high-strength chemical plastic drums with honeycomb reinforcing ribs as described in any one of claims 1-9, characterized in that: Includes the following steps: S1: Place the high-strength chemical plastic barrel with honeycomb reinforcing ribs to be tested on the base (11) of the pressure module (1), and position the top of the barrel directly below the flexible mechanism (2); S2: Activate the pressure module (1) to drive the pressure plate (110) to move downward, so that the flexible mechanism (2) approaches and contacts the honeycomb curved surface of the top of the barrel; S3: The airbag (212) is inflated by the fitting unit (21) of the flexible mechanism (2), so that it expands flexibly and adaptively wraps and fits the honeycomb structure on the top of the barrel to form a large area of ​​uniformly distributed load contact surface. S4: Continue to press down the pressure plate (110) and apply pressure to the top of the plastic bucket through the flexible mechanism (2) to perform a pressure resistance test; S5: After the test is completed, release the air pressure inside the airbag (212) and lift the pressure plate (110) to remove the plastic bucket.

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