A fully automatic pressure testing device
By using electronically controlled centering and an automated cleaning mechanism, the problems of test block positioning misalignment and incomplete cleaning in existing devices have been solved, achieving efficient and accurate testing and cleaning of the fully automated pressure testing device.
Patent Information
- Application Number
- CN202611095087.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-07-22
- Publication Date
- 2026-08-25
AI Technical Summary
Existing fully automatic pressure testing equipment has a single cleaning function, the scraper cannot avoid hard shell impurities, resulting in severe wear, and manual operation is prone to causing the test block to be misplaced, affecting the accuracy of the test results.
The test block is automatically centered using an electronically controlled centering mechanism. Combined with a scraper block with an elastic avoidance structure and a return spring design, along with a swing assembly and stepped guide rail, it achieves automated cleaning of hard impurities and avoids damage to the scraper block.
It achieves precise positioning and efficient cleaning of test blocks, ensuring the accuracy of compressive strength test results, extending the service life of cleaning components, and reducing manual intervention.
Smart Images
Figure CN122631445A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of pressure testing technology, specifically a fully automatic pressure testing device. Background Technology
[0002] Fully automatic pressure testing equipment is mostly used for testing the compressive strength of standard test blocks of concrete and mortar. The equipment relies on a hydraulic mechanism to drive the pressure plate to apply pressure to the test block, and uses a pressure sensor to collect the ultimate pressure value when the test block breaks, thereby judging the mechanical properties of the test block.
[0003] During the crushing process of the test block under pressure, the internal cement slurry and fine sand powder are squeezed to the bottom of the pressure plate and the top surface of the base under huge compressive force, forming thin-film hard shell impurities on the metal bearing surface. The existing fully automatic pressure testing device has a relatively simple cleaning structure function, which can only rely on a fixed scraper to clean the loose powder generated by the crushing of the test block in one go. The rigid scraper cannot avoid the hardened lumps on its own and is easily bumped and worn by the hard shell, making it difficult to clean in a targeted manner. Moreover, most existing equipment requires manual placement of the test block, which is prone to visual errors and deviation. The deviation of the test block placement will cause uneven force during pressurization, affecting the accuracy of the compressive strength test results. Therefore, we disclose a fully automatic pressure testing device to solve this problem. Summary of the Invention
[0004] The purpose of this invention is to provide a fully automatic pressure testing device to solve the problems raised in the prior art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: the pressure testing device includes an electrical control cabinet, a base is provided on one side of the electrical control cabinet, a fixed seat is fixedly installed on the top of the base by a column, and a testing mechanism is installed on the fixed seat; A U-shaped partition is fixedly installed on the side of the fixed seat and the base that are close to each other, and a cleaning mechanism is installed on one side of the U-shaped partition; A centering mechanism is installed on the side of the base, and the centering mechanism is installed in conjunction with the testing mechanism; The centering mechanism includes centering slots located around the top of the base. Each centering slot has a motor fixedly installed on one side of the base. The output shaft of each motor extends into the corresponding centering slot and is mounted with a centering plate via a torque sensor. The four sides of the centering plate contact the inner walls of the four sides of the centering slot. The top of the centering plate is on the same horizontal plane as the top of the base. Both ends of the centering plate are arc-shaped. The connection between the output shaft of the motor and the centering plate is close to the center of the base.
[0006] As a preferred technical solution, the cleaning mechanism includes a push plate. A horizontal hydraulic cylinder is fixedly installed on the side of the U-shaped partition. The movable end of the horizontal hydraulic cylinder passes through the side of the U-shaped partition and is fixedly connected to the side of the push plate. The two sides of the push plate contact the inner walls of the two sides of the U-shaped partition, respectively. The top and bottom of the push plate have gaps with the inner walls of the top and bottom sides of the U-shaped partition, respectively. A cavity is formed in the push plate. Both the top and bottom of the push plate have clearance grooves. Multiple rotating holes are formed on the inner walls of the two clearance grooves that are close to each other. The rotating holes are connected to the cavity. A cleaning component is installed in two corresponding rotating holes. A swing component is installed in the cavity. The swing component is installed in conjunction with the cleaning component. Two fixed components are installed in the cavity. The fixed components are installed in conjunction with the swing component. Multiple positioning components are installed on the swing component.
[0007] As a preferred technical solution, the cleaning component includes two limiting discs. The sides of the two limiting discs that are far apart from each other contact the inner walls of the top and bottom sides of the cavity, respectively. A rotating column is fixedly installed on the sides of the two limiting discs that are far apart from each other. The two rotating columns are rotatably installed in two rotating holes, respectively. An eccentrically set column is fixedly installed on the sides of the two limiting discs that are close to each other. A rectangular groove is opened at the ends of the two rotating columns that are far apart from each other. A rectangular column is slidably installed on the inner walls of the two rectangular grooves. A scraper is fixedly installed at the ends of the two rectangular columns that are far apart from each other. The same moving spring is fixedly installed on the inner walls of the rectangular columns and the rectangular grooves.
[0008] As a preferred technical solution, multiple scraper blocks located on the same side are continuously arranged along the edge of the push plate, and adjacent scraper blocks fit together without gaps. One of the outermost scraper blocks has triangular bevels at both ends, and the other scraper blocks have triangular bevels at one end. There are no gaps between the scraper blocks and the push plate on their sides that are close to each other. The scraper blocks are adapted to the clearance groove. The top of the upper scraper blocks corresponds to the bottom of the pressure plate, and the bottom of the lower scraper blocks corresponds to the top of the base.
[0009] As a preferred technical solution, the swing assembly includes a swing column located within a push plate. The top of the swing column has multiple extrusion holes, through which multiple eccentric columns pass. Two movable columns are fixedly installed on the side of the swing column. Two movable holes are formed on the inner wall of the cavity, through which the two movable columns pass. Two U-shaped sliding plates are fixedly installed on the side of the push plate. Two rectangular holes are formed on the side of the U-shaped partition, within which the two U-shaped sliding plates slide. A cylinder is fixedly installed at the bottom of each of the two movable columns. Two mounting plates are fixedly installed on the side of the U-shaped partition, with stepped guide rails fixedly installed at the top of each mounting plate. The two cylinders are adapted to the two stepped guide rails, and are offset from them. The movable column is connected to the inner wall of the U-shaped sliding plate via two reset units. The stepped guide rails are arranged in a continuous wave shape, enabling the cylinders to move linearly back and forth along the rails.
[0010] As a preferred technical solution, the reset unit includes two reset rods, the two ends of which are fixedly connected to the inner walls of the two sides of the U-shaped slide plate, the moving column is slidably sleeved on the two reset rods, and a reset spring is sleeved on the reset rod. The two ends of the reset spring are fixedly installed on the side of the moving column and the inner wall of the U-shaped slide plate, respectively.
[0011] As a preferred technical solution, the number of columns is four, and the two columns away from the U-shaped partition are fixedly installed with blocks on their sides; The fixing assembly includes a locking rod. One side of the locking rod has a moving groove formed on the side of the swing column. The inner wall of the moving groove has a slot. The side of the locking rod extends into the slot. The inner wall of the cavity has two round holes. Two external pressure columns are fixedly installed on the side of the locking rod. The two external pressure columns pass through the two round holes respectively. A fixing spring is sleeved on the external pressure column. The two ends of the fixing spring are fixedly installed on the side of the locking rod and the inner wall of the cavity respectively. The two external pressure columns on one side correspond to the position of one of the stops.
[0012] As a preferred technical solution, the cavity has multiple sliding holes on its inner wall near the moving column; The positioning component includes a push rod rotatably mounted on the side of the swing column, with an inner pressure column rotatably mounted at the end of the push rod away from the swing column, and one end of the inner pressure column slidably mounted in a corresponding sliding hole.
[0013] As a preferred technical solution, the testing mechanism includes a vertical hydraulic cylinder fixedly installed at the center of the top of the fixed base. A circular groove is opened at the bottom of the fixed base. A pressure sensor is fixedly installed at the movable end of the vertical hydraulic cylinder through the inner wall of the top side of the circular groove. A pressure plate is fixedly installed at the detection end of the pressure sensor. Two guide rods are fixedly installed at the top of the pressure plate. The top ends of the two guide rods penetrate the inner wall of the top side of the circular groove. The bottom of the pressure plate is at the same horizontal plane as the bottom of the fixed base.
[0014] As a preferred technical solution, an explosion-proof glass door is provided on the side of the fixed base away from the push plate. One side of the explosion-proof glass door is rotatably installed on the side of the column, and the other side of the explosion-proof glass door is detachably connected to the side of a column.
[0015] Compared with the prior art, the beneficial effects of the present invention are: When using this device, starting four motors causes four centering plates to rotate towards the center. When the four centering plates contact the sides of the test block, they compress the test block and move it towards the center. The four centering plates automatically center the test block, avoiding displacement caused by manual swinging and ensuring the accuracy of the compressive strength test results. Then, the vertical hydraulic cylinder is activated, and the moving end of the vertical hydraulic cylinder drives the pressure plate downward to perform a pressure test on the test block. The pressure is detected by a pressure sensor. After the test block is broken, the pressure sensor can no longer detect the pressure, thus measuring the maximum pressure value that the test block can withstand.
[0016] This device features a scraper with an elastic avoidance structure. When cleaning loose impurities, it can directly push away debris. When the scraper comes into contact with thin, hard, sheet-like impurities formed under high pressure on the pressure plate or base, the rectangular column compresses the moving spring and automatically retracts. This structure prevents hard clumps from scratching and damaging the scraper body. After the scraper passes the impurities, it quickly returns to its original position due to the elasticity of the moving spring, continuously completing the cleaning of loose powder, balancing cleaning effectiveness and the service life of the cleaning components.
[0017] This device, through a linkage structure of stop blocks, external pressure columns, clamping rods, and clamping slots, automatically releases the oscillating column limit after the pusher plate completes the initial material feeding. Combined with a reset spring, it drives the scraper to rotate 90 degrees, aligning the triangular bevel of the scraper with the hard impurities. Then, the wavy stepped guide rail compresses the cylinder, causing the scraper to oscillate back and forth. The triangular bevel's back-and-forth oscillation breaks down thin, hard-shell-like impurities, effectively peeling away firmly bonded hardened clumps from the metal bearing surface without manual grinding. This significantly improves the automated removal capability of hard slag. Attached Figure Description
[0018] Figure 1 This is a first-view structural diagram of the present invention; Figure 2 This is a schematic diagram of the second perspective structure of the present invention; Figure 3 This is a schematic diagram of the structure of the present invention without the explosion-proof glass door; Figure 4 This is a schematic diagram of the structure of the testing mechanism of the present invention; Figure 5 This is a first-view structural diagram of the cleaning mechanism of the present invention; Figure 6 for Figure 5 Schematic diagram of the middle section; Figure 7 This is a second-view structural schematic diagram of the cleaning mechanism of the present invention; Figure 8 This is a schematic diagram of the push plate after being cut open at the rotating hole and the inner pressure column; Figure 9 A schematic diagram showing the connection structure of multiple cleaning components and swing components; Figure 10 A schematic diagram of the positioning components and the rotating column after being cut open; Figure 11 This is a schematic diagram of the connection between the fixed component and the swing column.
[0019] In the diagram: 1. Electrical control cabinet; 2. Column; 3. Vertical hydraulic cylinder; 4. Fixed base; 5. Explosion-proof glass door; 6. Base; 7. Centering plate; 8. Motor; 9. U-shaped partition; 10. U-shaped sliding plate; 11. Horizontal hydraulic cylinder; 12. Mounting plate; 13. Stop block; 14. Push plate; 15. Pressure plate; 16. Pressure sensor; 17. Scraper; 18. Clearance groove; 19. Cylinder; 20. Moving column; 21. Reset rod; 22. Reset spring; 23. Stepped guide rail; 24. External pressure column; 25. Internal pressure column; 26. Rotating hole; 27. Cavity; 28. Swinging column; 29. Rectangular column; 30. Rotating column; 31. Limiting plate; 32. Eccentric column; 33. Extrusion hole; 34. Moving spring; 35. Push rod; 36. Slot; 37. Locking rod; 38. Moving slot; 39. Fixed spring. 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 skilled in the art without creative effort are within the scope of protection of the present invention.
[0021] Example: Figures 1-11As shown, the present invention provides a technical solution for a fully automatic pressure testing device. The pressure testing device includes an electrical control cabinet 1, which is a prior art device. The electrical control cabinet 1 integrates a hydraulic oil pump, an oil tank, a solenoid valve, and a force acquisition circuit. The knob on the front panel is an oil inlet / return speed control valve. The display screen is used to read the compressive strength value of the test block. A base 6 is provided on one side of the electrical control cabinet 1. A fixing seat 4 is fixedly installed on the top of the base 6 through a column 2. The testing mechanism is installed on the fixing seat 4. A U-shaped partition 9 is fixedly installed on the side of the fixed base 4 and the base 6 that are close to each other, and a cleaning mechanism is installed on one side of the U-shaped partition 9; A centering mechanism is installed on the side of the base 6, and the centering mechanism is installed in conjunction with the test mechanism; like Figure 1 and Figure 2 As shown, the centering mechanism includes centering grooves located around the top of the base 6. Each centering groove has a motor 8 fixedly mounted on one side of the base 6. The output shaft of each motor 8 extends into the corresponding centering groove and is mounted with a centering plate 7 via a torque sensor. When the four centering plates 7 contact the four sides of the test block and the four torque sensors detect the same pressure, the test block is centered. The four sides of the centering plates 7 contact the four inner walls of the centering grooves. The top of the centering plates 7 is on the same horizontal plane as the top of the base 6. Both ends of the centering plates 7 are arc-shaped. The advantage of this design is that the arc-shaped ends do not affect the rotation of the centering plates 7 within the centering grooves. The connection between the output shaft of the motor 8 and the centering plate 7 is close to the center of the base 6. The advantage of this design is that after the centering plates 7 rotate, their ends can contact the sides of the test block, thus facilitating centering. In use, open the explosion-proof glass door 5, then place the test block to be pressure tested into the approximate center position of the top of the centering plate 7. Start the four motors 8 to make the four centering plates 7 rotate towards the center. When the four centering plates 7 contact the side of the test block, they will squeeze the test block and move it towards the center. The four centering plates 7 can center the test block. After centering, close the explosion-proof glass door 5, and the output cycles of the four motors 8 will rotate in the opposite direction. The four centering plates 7 will return to their original state, which is convenient for the next centering. At the same time, the centering plates 7 do not affect the later cleaning.
[0022] With the above structure, the test block can be centered by the centering mechanism, so that the test block corresponds to the position of the pressure plate 15, avoiding displacement caused by manual swinging, ensuring the accuracy of the compressive strength test results, and cleaning can be performed by the cleaning mechanism after the test is completed.
[0023] The cleaning mechanism includes a push plate 14. A horizontal hydraulic cylinder 11 is fixedly installed on the side of a U-shaped partition 9. The movable end of the horizontal hydraulic cylinder 11 passes through the side of the U-shaped partition 9 and is fixedly connected to the side of the push plate 14. The two sides of the push plate 14 contact the inner walls of the two sides of the U-shaped partition 9 respectively. The top and bottom of the push plate 14 are respectively separated from the inner walls of the top and bottom sides of the U-shaped partition 9. A cavity 27 is provided on the push plate 14. A clearance groove 18 is provided on the top and bottom of the push plate 14. Multiple rotating holes 26 are provided on the inner walls of the two clearance grooves 18 that are close to each other. The rotating holes 26 are connected to the cavity 27. A cleaning component is installed in the two corresponding rotating holes 26. A swing component is installed in the cavity 27. The swing component is installed in conjunction with the cleaning component. Two fixed components are installed in the cavity 27. The fixed components are installed in conjunction with the swing component. Multiple positioning components are installed on the swing component. By activating the horizontal hydraulic cylinder 11 and stretching its movable end, the push plate 14 can be moved. The push plate 14 can push away impurities from the pressure plate 15 and the base 6, eliminating the need for manual cleaning and facilitating the next pressure test.
[0024] like Figure 8 and Figure 9 As shown, the cleaning assembly includes two limiting discs 31. The sides of the two limiting discs 31 that are far apart from each other contact the top and bottom inner walls of the cavity 27, respectively. A rotating column 30 is fixedly installed on the sides of the two limiting discs 31 that are far apart from each other. The two rotating columns 30 are rotatably installed in the two rotating holes 26, respectively. An eccentrically set eccentric column 32 is fixedly installed on the sides of the two limiting discs 31 that are close to each other. A rectangular groove is opened at the ends of the two rotating columns 30 that are far apart from each other. A rectangular column 29 is slidably installed on the inner wall of the two rectangular grooves. A scraper 17 is fixedly installed at the ends of the two rectangular columns 29 that are far apart from each other. The same moving spring 34 is fixedly installed on the inner wall of the rectangular column 29 and the rectangular groove. The movement of the push plate 14 drives the movement of multiple scraper blocks 17. When the scraper block 17 encounters loose impurities attached to the pressure plate 15 and the base 6, the loose impurities will be pushed away by the scraper block 17. When the test block is broken, the bottom of the pressure plate 15 and the top of the base 6 will form hard impurities due to the high pressure. The hard impurities are generally in the shape of thin sheet-like hard shell impurities. When the scraper block 17 encounters hard impurities, the scraper block 17 can avoid them, and each scraper block 17 can avoid them individually to prevent the thin sheet-like hard shell impurities from damaging the scraper block 17.
[0025] like Figure 8As shown, multiple scraper blocks 17 located on the same side are continuously arranged along the edge of the push plate 14, with adjacent scraper blocks 17 fitting together without gaps. One of the outermost scraper blocks 17 has triangular bevels at both ends, and the remaining scraper blocks 17 also have triangular bevels at one end. This arrangement allows all scraper blocks 17 to rotate, and there are no gaps between the scraper blocks 17 and the sides of the push plate 14 where they are close to each other. The scraper blocks 17 are adapted to the clearance grooves 18. The tops of the upper scraper blocks 17 correspond to the bottom of the pressure plate 15, and the bottoms of the lower scraper blocks 17 correspond to the top of the base 6. When the scraper blocks 17 are in a straight line, they can retract to avoid the clearance grooves 18. When the scraper blocks 17 rotate 90 degrees, their sides contact the top of the push plate 14, thus ceasing to move and facilitating the subsequent breaking of thin, hard-shell impurities.
[0026] like Figure 5 and Figure 6 As shown, the swing assembly includes a swing column 28 located inside the push plate 14. The top of the swing column 28 has multiple extrusion holes 33, and multiple eccentric columns 32 pass through the multiple extrusion holes 33 respectively. Two movable columns 20 are fixedly installed on the side of the swing column 28. Two movable holes are opened on the inner wall of the cavity 27, and the two movable columns 20 pass through the two movable holes respectively. Two U-shaped slide plates 10 are fixedly installed on the side of the push plate 14. Two rectangular holes are opened on the side of the U-shaped partition 9, and the two U-shaped slide plates 10 are slidably installed in the two rectangular holes respectively. A cylinder 19 is fixedly installed at the bottom of each of the two movable columns 20. Two mounting plates 12 are fixedly installed on the side of the U-shaped partition 9. A stepped guide rail 23 is fixedly installed on the top of each of the two mounting plates 12. The two cylinders 19 are respectively adapted to the two stepped guide rails 23, and the two cylinders 19 are respectively offset from the two stepped guide rails 23. The movable column 20 is connected to the inner wall of the U-shaped slide plate 10 through two reset units. The stepped guide rail 23 is arranged in a continuous wave shape, enabling the cylinder 19 to move back and forth in a straight line along the rail. When the movable end of the horizontal hydraulic cylinder 11 retracts, the cylinder 19 enters the stepped guide rail 23. The inner wall of the stepped guide rail 23 presses against the cylinder 19, causing the cylinder 19 to move back and forth. The back and forth movement of the cylinder 19 drives the moving column 20 and the swing column 28 to move back and forth. The back and forth movement of the swing column 28 drives the rotation of multiple eccentric columns 32 through multiple extrusion holes 33, which in turn causes the multiple rotating columns 30 and multiple scrapers 17 to swing back and forth. When the scrapers 17 retract, their triangular inclined surfaces swing back and forth in the forward direction. The triangular inclined surfaces can break open the thin sheet-like hard shell impurities, thereby removing the thin sheet-like hard shell impurities.
[0027] like Figure 6As shown, the reset unit includes two reset rods 21. The two ends of each reset rod 21 are fixedly connected to the inner walls of the two sides of the U-shaped sliding plate 10. A moving column 20 is slidably sleeved on the two reset rods 21. A reset spring 22 is sleeved on each reset rod 21, and the two ends of the reset spring 22 are fixedly installed on the side of the moving column 20 and the inner wall of the U-shaped sliding plate 10, respectively. The reset spring 22 allows the moving column 20 to return to its original position after movement.
[0028] like Figure 3 , Figure 7 and Figure 11 As shown, there are four columns 2, and the two columns 2 away from the U-shaped partition 9 are fixedly installed with blocks 13 on their sides; The fixing assembly includes a locking rod 37. A moving groove 38 is provided on one side of the locking rod 37, which is located on the side of the swing column 28. A slot 36 is provided on the inner wall of the moving groove 38. The side of the locking rod 37 extends into the slot 36. Two round holes are provided on the inner wall of the cavity 27. Two external pressure columns 24 are fixedly installed on the side of the locking rod 37. The two external pressure columns 24 pass through the two round holes respectively. A fixing spring 39 is sleeved on the external pressure column 24. The two ends of the fixing spring 39 are fixedly installed on the side of the locking rod 37 and the inner wall of the cavity 27 respectively. The two external pressure columns 24 located on one side correspond to the position of one of the stop blocks 13. The swing column 28 moves through multiple extrusion holes 33, driving multiple eccentric columns 32 to rotate, thereby causing multiple scraper blocks 17 to return to a straight line. At this time, the slot 36 and the lever 37 are in the same position. Under the action of the fixed spring 39, the lever 37 is inserted into the slot 36, completing the limitation of the swing column 28. The multiple scraper blocks 17 in a straight line can push away the impurities that were previously broken.
[0029] like Figure 8 and Figure 10 As shown, multiple sliding holes are provided on the inner wall of the cavity 27 near the moving column 20; The positioning assembly includes a push rod 35 rotatably mounted on the side of the swing column 28. An inner pressure column 25 is rotatably mounted on the end of the push rod 35 away from the swing column 28, and one end of the inner pressure column 25 is slidably mounted in a corresponding sliding hole. When the push plate 14 is fully retracted, the side of the U-shaped partition 9 will squeeze multiple inner pressure columns 25, causing multiple push rods 35 to rotate. The rotation of the multiple push rods 35 drives the swing column 28 to move. The movement of the swing column 28 drives multiple eccentric columns 32 to rotate through multiple extrusion holes 33, thereby causing multiple scraper blocks 17 to return to a straight line. At this time, the slot 36 corresponds to the position of the clamping rod 37. Under the action of the fixing spring 39, the clamping rod 37 is engaged in the slot 36, completing the limitation of the swing column 28. At this time, the multiple scraper blocks 17 in a straight line can push away the previously broken impurities, thereby effectively cleaning loose and hard impurities.
[0030] like Figure 1 , Figure 3 and Figure 4 As shown, the testing mechanism includes a vertical hydraulic cylinder 3 fixedly installed at the top center of a fixed base 4. A circular groove is formed at the bottom of the fixed base 4. A pressure sensor 16 is fixedly installed at the movable end of the vertical hydraulic cylinder 3, penetrating the inner top wall of the groove. A pressure plate 15 is fixedly installed at the detection end of the pressure sensor 16. Two guide rods are fixedly installed at the top of the pressure plate 15, with their tips penetrating the inner top wall of the groove. The bottom of the pressure plate 15 is at the same horizontal plane as the bottom of the fixed base 4. After the test block is placed in, the vertical hydraulic cylinder 3 is activated. The movable end of the vertical hydraulic cylinder 3 drives the pressure plate 15 downwards, thereby conducting a pressure test on the test block. The pressure is detected by the pressure sensor 16. After the test block is broken, the pressure sensor 16 can no longer detect pressure, thus determining the maximum pressure the test block can withstand.
[0031] like Figure 1 As shown, a fireproof glass door 5 is installed on the side of the fixed base 4 away from the push plate 14. One side of the fireproof glass door 5 is rotatably mounted on the side of the column 2, and the other side of the fireproof glass door 5 is detachably connected to the side of a column 2. The advantage of this arrangement is that workers can observe the situation when it breaks.
[0032] Working principle of the invention: When in use, open the explosion-proof glass door 5, and then place the test block that needs to be pressure tested into the approximate center position of the top of the centering plate 7. Start the four motors 8 to make the four centering plates 7 rotate towards the center. When the four centering plates 7 contact the side of the test block, they will squeeze the test block to move towards the center, and the four centering plates 7 can center the test block. Start the vertical hydraulic cylinder 3. The movable end of the vertical hydraulic cylinder 3 drives the pressure plate 15 to move downward, thereby conducting a pressure test on the test block. The pressure is detected by the pressure sensor 16. After the test block is broken, the pressure sensor 16 can no longer detect the pressure, thus measuring the maximum pressure value that the test block can withstand. After the test block is broken, the explosion-proof glass door 5 is opened, and the horizontal hydraulic cylinder 11 extends to drive the push plate 14 and scraper 17 to move forward to clean up loose impurities. The pressure plate 15 and the surface of the base 6 form a thin sheet of hard shell impurities under high pressure. When the scraper 17 contacts the hard block, the rectangular column 29 compresses the moving spring 34 to move away. After passing the impurities, the spring rebounds and resets to continue cleaning up loose impurities.
[0033] After the pusher plate 14 pushes the impurity into place, the stop block 13 squeezes the external pressure column 24, causing the clamping rod 37 to disengage from the slot 36 and release the limit of the swing column 28; the reset spring 22 pulls the moving column 20 and the swing column 28 to move, driving the eccentric column 32 to rotate, so that the scraper 17 rotates ninety degrees, with the triangular inclined surface facing the hard impurity, and the cylinder 19 aligned with the stepped guide rail 23.
[0034] The movable end of the horizontal hydraulic cylinder 11 retracts, and the cylinder 19 enters the wave-shaped stepped guide rail 23. The rail squeezes the cylinder 19 to reciprocate. The linked swing column 28 and eccentric column 32 drive the scraper 17 to swing back and forth, relying on the triangular inclined surface to break the thin sheet-like hard shell impurities.
[0035] When the push plate 14 is fully retracted, the U-shaped partition 9 squeezes the inner pressure column 25, and the push rod 35 drives the swing column 28 to reset, and the scraper blocks 17 return to a straight arrangement; the fixed spring 39 pushes the clamping rod 37 into the clamping groove 36 to lock the swing column 28, and the whole row of scraper blocks pushes the crushed residue to achieve comprehensive cleaning of loose powder and hard lumps.
[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A fully automatic pressure testing device, comprising an electrical control cabinet (1), characterized in that: A base (6) is provided on one side of the electrical control cabinet (1), and a fixed seat (4) is fixedly installed on the top of the base (6) by a column (2), and a test mechanism is installed on the fixed seat (4). A U-shaped partition (9) is fixedly installed on the side of the fixed seat (4) and the base (6) that are close to each other, and a cleaning mechanism is installed on one side of the U-shaped partition (9); A centering mechanism is installed on the side of the base (6), and the centering mechanism is installed in conjunction with the test mechanism; The centering mechanism includes centering slots located around the top of the base (6). Each centering slot has a motor (8) fixedly installed on one side of the base (6). The output shaft of each motor (8) extends into the corresponding centering slot and is equipped with a centering plate (7) via a torque sensor. The top of the centering plate (7) is on the same horizontal plane as the top of the base (6).
2. The fully automatic pressure testing device according to claim 1, characterized in that: The cleaning mechanism includes a push plate (14). A horizontal hydraulic cylinder (11) is fixedly installed on the side of the U-shaped partition (9). The movable end of the horizontal hydraulic cylinder (11) passes through the side of the U-shaped partition (9) and is fixedly connected to the side of the push plate (14). The two sides of the push plate (14) are in contact with the inner walls of the two sides of the U-shaped partition (9). The top and bottom of the push plate (14) are respectively separated from the inner walls of the top and bottom sides of the U-shaped partition (9). A cavity (27) is provided on the push plate (14). Both the top and bottom of the container are provided with clearance grooves (18). Multiple rotating holes (26) are provided on the inner walls of the two clearance grooves (18) that are close to each other. The rotating holes (26) are connected to the cavity (27). A cleaning component is installed in the two corresponding rotating holes (26). A swing component is installed in the cavity (27). The swing component is installed in conjunction with the cleaning component. Two fixing components are installed in the cavity (27). The fixing component is installed in conjunction with the swing component. Multiple positioning components are installed on the swing component.
3. The fully automatic pressure testing device according to claim 2, characterized in that: The cleaning assembly includes two limiting discs (31). The sides of the two limiting discs (31) that are far apart from each other are in contact with the inner walls of the top and bottom sides of the cavity (27), respectively. A rotating column (30) is fixedly installed on the sides of the two limiting discs (31) that are far apart from each other. The two rotating columns (30) are rotatably installed in two rotating holes (26), respectively. An eccentric column (32) is fixedly installed on the sides of the two limiting discs (31) that are close to each other. A rectangular groove is opened at the ends of the two rotating columns (30) that are far apart from each other. A rectangular column (29) is slidably installed on the inner wall of the two rectangular grooves. A scraper (17) is fixedly installed at the ends of the two rectangular columns (29) that are far apart from each other. The same moving spring (34) is fixedly installed on the inner wall of the rectangular column (29) and the rectangular groove.
4. The fully automatic pressure testing device according to claim 3, characterized in that: Multiple scraper blocks (17) located on the same side are continuously arranged along the edge of the push plate (14). Adjacent scraper blocks (17) fit together without gaps. One of the outermost scraper blocks (17) has triangular bevels at both ends. The other scraper blocks (17) have triangular bevels at one end. There are no gaps between the scraper blocks (17) and the push plate (14) on their sides. The scraper blocks (17) are adapted to the clearance groove (18). The top of the upper scraper blocks (17) corresponds to the bottom of the pressure plate (15). The bottom of the lower scraper blocks (17) corresponds to the top of the base (6).
5. The fully automatic pressure testing device according to claim 3, characterized in that: The swing assembly includes a swing column (28) located inside the push plate (14). The top of the swing column (28) has multiple extrusion holes (33), and multiple eccentric columns (32) pass through the multiple extrusion holes (33). Two movable columns (20) are fixedly installed on the side of the swing column (28). Two movable holes are opened on the inner wall of the cavity (27), and the two movable columns (20) pass through the two movable holes respectively. Two U-shaped sliding plates (10) are fixedly installed on the side of the push plate (14), and two rectangular holes are opened on the side of the U-shaped partition (9). The U-shaped slide plate (10) is slidably installed in two rectangular holes. The bottom of each of the two movable columns (20) is fixedly installed with a cylinder (19). The side of the U-shaped partition (9) is fixedly installed with two mounting plates (12). The top of each of the two mounting plates (12) is fixedly installed with a stepped guide rail (23). The two cylinders (19) are respectively adapted to the two stepped guide rails (23). The two cylinders (19) are respectively offset from the two stepped guide rails (23). The movable column (20) is connected to the inner wall of the U-shaped slide plate (10) through two reset units.
6. The fully automatic pressure testing device according to claim 5, characterized in that: The reset unit includes two reset rods (21), the two ends of which are fixedly connected to the inner walls of the two sides of the U-shaped slide plate (10). The moving column (20) is slidably sleeved on the two reset rods (21). A reset spring (22) is sleeved on the reset rod (21). The two ends of the reset spring (22) are fixedly installed on the side of the moving column (20) and the inner wall of the U-shaped slide plate (10).
7. The fully automatic pressure testing device according to claim 5, characterized in that: The number of columns (2) is four, and the two columns (2) away from the U-shaped partition (9) are fixedly installed with blocks (13) on their sides. The fixing component includes a clamping rod (37). A moving groove (38) is provided on one side of the clamping rod (37) on the side of the swing column (28). A slot (36) is provided on the inner wall of the moving groove (38). The side of the clamping rod (37) extends into the slot (36). Two round holes are provided on the inner wall of the cavity (27). Two external pressure columns (24) are fixedly installed on the side of the clamping rod (37). The two external pressure columns (24) pass through the two round holes respectively. A fixing spring (39) is sleeved on the external pressure column (24). The two ends of the fixing spring (39) are fixedly installed on the side of the clamping rod (37) and the inner wall of the cavity (27) respectively. The two external pressure columns (24) on one side correspond to the position of one of the stops (13).
8. The fully automatic pressure testing device according to claim 5, characterized in that: The cavity (27) has multiple sliding holes on its inner wall near the moving column (20); The positioning assembly includes a push rod (35) rotatably mounted on the side of the swing column (28), with an inner pressure column (25) rotatably mounted on the end of the push rod (35) away from the swing column (28), and one end of the inner pressure column (25) slidably mounted in a corresponding sliding hole.
9. The fully automatic pressure testing device according to claim 1, characterized in that: The test mechanism includes a vertical hydraulic cylinder (3) fixedly installed at the top center of the fixed base (4). The bottom of the fixed base (4) is provided with a circular groove. The movable end of the vertical hydraulic cylinder (3) is fixedly installed with a pressure sensor (16) through the top inner wall of the circular groove. The detection end of the pressure sensor (16) is fixedly installed with a pressure plate (15). The top of the pressure plate (15) is fixedly installed with two guide rods. The top ends of the two guide rods penetrate the top inner wall of the circular groove. The bottom of the pressure plate (15) is at the same level as the bottom of the fixed base (4).
10. The fully automatic pressure testing device according to claim 1, characterized in that: An explosion-proof glass door (5) is provided on the side of the fixed seat (4) away from the push plate (14). One side of the explosion-proof glass door (5) is rotatably installed on the side of the column (2), and the other side of the explosion-proof glass door (5) is detachably connected to the side of a column (2).