Digital display electromagnetic dynamic penetration automatic detection instrument

Abstract

The present invention discloses a digital display electromagnetic dynamic penetration automatic detector, which relates to the technical field of construction monitoring equipment, an electromagnet, a drop hammer, a hammer rod, a detection rod and a probe; wherein the overall contour of the electromagnet is annular and fixedly mounted on one end of the hammer rod, the other end of the hammer rod is provided with a stopper with an integral structure therewith, and the hammer rod is coaxially fixed with the detection rod, the detection rod is coaxially fixed with the probe, the drop hammer sliding sleeve is provided on the hammer rod, and the drop hammer is located between the electromagnet and the stopper; wherein the electromagnet establishes an electrical connection with a digital display host, an annular handle coaxially arranged therewith is fixed on the outer side of the drop hammer, a support assembly is provided on the outer side of the detection rod, and the support assembly includes a support mechanism. The present invention is composed of a digital display host, an electromagnet, a drop hammer, a hammer rod, a detection rod and a probe, and the whole structure is simple, which is convenient for installation and subsequent replacement of parts, and the whole structure is compact, which is convenient for storage and carrying.

Description

Technical Field

[0001] The invention relates to the technical field of construction monitoring equipment, in particular to a digital display electromagnetic dynamic penetration automatic detection instrument. Background Art

[0002] Cone dynamic probing is a test method that uses a hammer of a certain mass to penetrate a conical probe of a certain specification into the soil layer to a certain depth with a certain free fall distance, and then measures and records the number of hammer blows required to penetrate the soil layer to a certain depth.

[0003] After searching, the Chinese patent document with the authorization announcement number CN209368909U discloses an integrated automatic drop hammer device for testing the bearing capacity of the foundation. The foldable tripod is composed of a top cover, a lifting ring, a high-strength aluminum alloy main frame, and a ring-shaped protective chain. A lifting ring is fixedly connected at the middle position of the bottom surface of the top cover, and an electric traction hoist is suspended on the lifting ring. The upper alloy steel hook included in the electric traction hoist is connected with the lifting ring by a hanging buckle, and a heavy-duty power probing device is suspended on the lower alloy steel hook; the heavy-duty power probing device includes a guide rod fixedly assembled with a lifting device, which is connected to one end of the wire rope roller through a lifting rope, and the other end of the wire rope is connected with the lower alloy steel hook by a buckle. A heavy hammer is also installed on the guide rod through a sliding pin to lock and fasten, and a hammer seat with an integrated structure is fixedly connected to the bottom end of the guide rod, and a probing head with an integrated structure is provided at the bottom end of the hammer seat. The use of this technical solution can achieve more convenient, faster, and more labor-saving effects in the actual operation process.

[0004] However, the above patent still has the following defects. The above patent uses an electric hoist to lift the weight, and then let it fall freely, so that the cone head on the weight hits the ground, and then reciprocates in sequence, recording the depth of the hammer until the specified depth is reached. However, the entire device needs to be assembled (a tripod bracket needs to be installed, followed by an electric hoist, and finally the device is lifted by the electric hoist), which is time-consuming and labor-intensive, and there are certain safety risks during installation, and it is not easy to carry. Summary of the invention

[0005] The purpose of the present invention is to provide a digital display electromagnetic dynamic penetration automatic detection instrument to solve the problems raised in the above background technology.

[0006] The technical solution of the present invention is: a digital display electromagnetic dynamic penetration automatic detection instrument, comprising a digital display host and a detection component, wherein the detection component comprises an electromagnet, a drop hammer, a hammer rod, a detection rod and a probe;

[0007] The electromagnet has an overall ring-shaped profile and is fixedly mounted on one end of a hammer rod, a stopper integrally formed with the hammer rod is provided at the other end of the hammer rod, and the hammer rod is coaxially fixed with the detection rod, the detection rod is coaxially fixed with the probe, a drop hammer sliding sleeve is provided on the hammer rod, and the drop hammer is located between the electromagnet and the stopper;

[0008] Wherein, the electromagnet is electrically connected to the digital display host;

[0009] A support assembly is arranged on the outer side of the detection rod, the support assembly comprises a support mechanism and a one-way mechanism, and the support mechanism comprises a circular groove shell;

[0010] The one-way mechanism comprises a plurality of sliders, the inner side wall of the circular groove shell is provided with a plurality of sliding openings with its central axis as the center and distributed in an annular shape with equal distances, the plurality of sliders are slidably arranged in each sliding opening, the bottom of the sliding opening is provided with a straight slot, a second cylindrical block is rotatably installed at the bottom of the slider, and the second cylindrical block is slidably arranged in the straight slot, a circular ring plate is rotatably installed at the top position in the groove of the circular groove shell, the annular surface of the circular ring plate is provided with a plurality of oblique slots with its central axis as the center and distributed in an annular shape with equal distances, a first cylindrical block is rotatably installed at the top of the slider, and the first cylindrical block is slidably arranged in the oblique slot, a notch is provided at one end of the slider facing the central axis of the circular groove shell, a fixed shaft is fixed inside the notch, and a one-way bearing is installed on the fixed shaft, a wheel sleeve is fixed on the outer ring of the one-way bearing, a positioning plate is fixed on one side of the circular ring plate, a fixed plate is fixed on the outer side of the circular groove shell, a spring locating pin is fixed on the outer side of the fixed plate, and a positioning hole matching the spring locating pin is provided on the outer side of the positioning plate.

[0011] Preferably, an annular handle coaxially arranged therewith is fixed on the outer side of the drop hammer.

[0012] Preferably, the supporting mechanism also includes a cylinder, an outer ring, an inner gear ring, a plurality of axial gear columns and a plurality of supporting plates. A through hole coaxially arranged therewith is provided in the groove of the circular groove shell, and the circular groove shell is slidably sleeved on the detection rod through the through hole. The circular groove shell is coaxially fixed to the cylinder, and a plurality of notches equidistantly distributed in an annular shape with its central axis as the center are provided at the bottom end of the cylinder. One ends of the plurality of axial gear columns are rotatably installed in each notch, and the other ends of the plurality of axial gear columns are respectively fixed to one end of a plurality of supporting plates. The outer ring is coaxially fixed to the cylinder, and an inner gear ring is rotatably installed on the inner side of the outer ring through a bearing, and each of the axial gear columns is meshed with the inner gear ring.

[0013] Preferably, a wheel meter is fixedly mounted on the outer side of one of the sliding blocks, and a speed measuring wheel of the wheel meter is in contact with a wheel sleeve, and the wheel meter is electrically connected to a digital display host.

[0014] Preferably, a circular ring block coaxially arranged therewith is fixed on the top of the drop hammer, a plurality of key blocks equidistantly distributed in a circular ring with its central axis as the center of the circle are fixed inside the circular ring block, a plurality of guide grooves equidistantly distributed in a circular ring with its central axis as the center of the circle are opened on the outer side of the hammer rod, and a plurality of key blocks are slidably arranged in each guide groove;

[0015] A countersunk groove is provided on the inner side of the circular ring block, a sliding pin is slidably arranged in the small hole of the countersunk groove, a limiting ring coaxially arranged therewith is fixed on the outer side of the sliding pin, a tightening spring is sleeved on the outer side of the sliding pin, and the tightening spring applies a force to the limiting ring so that the sliding pin contacts the hammer rod, and the end of the hammer rod close to the electromagnet contracts inward to form a thin neck, a groove covering the small hole end of the countersunk groove is provided on the outer side of the circular ring block, and a contact block is slidably arranged in the groove, and the contact block is fixed to the sliding pin;

[0016] A fixing frame is fixed to the outside of the hammer rod, a synchronous wheel is rotatably installed inside the fixing frame, a synchronous belt is jointly sleeved on the outside of the two synchronous wheels, a pushing block is fixed to the outside of the synchronous belt, a servo motor is fixed to the outside of the fixing frame, the output shaft of the servo motor is coaxially fixed to one of the synchronous wheels, and the servo motor is electrically connected to the digital display host.

[0017] Preferably, a self-resetting toggle switch is fixed to the top end of the hammer rod, and the self-resetting toggle switch is electrically connected to the digital display host.

[0018] The present invention provides a digital display electromagnetic dynamic penetration automatic detection instrument through improvement, which has the following improvements and advantages compared with the prior art:

[0019] First, the present invention is composed of a digital display host, an electromagnet, a drop hammer, a hammer rod, a detection rod and a probe. The whole structure is simple, which is convenient for installation and subsequent replacement of parts. At the same time, the whole structure is compact and convenient for storage and carrying.

[0020] Second, the present invention uses a support mechanism to push one of the support plates toward the outside of the outer cylinder, and the support plate drives the shaft gear column fixed thereto to rotate, and the shaft gear column drives the internal gear ring meshing therewith to rotate, and the internal gear ring drives the remaining shaft gear columns to rotate, and the remaining shaft gear columns turn the outside of the remaining support plates out, and then the entire support mechanism is placed on the ground, which is convenient for technicians to stabilize the detection rod and reduce the labor intensity of technicians. At the same time, the technical mechanism can be stored, which is convenient for storage and carrying;

[0021] Thirdly, the one-way mechanism of the present invention and the arrangement of each wheel sleeve in the one-way mechanism can further improve the stability of the process of the detection rod moving downward. When the falling hammer is attracted by the electromagnet, the falling hammer will impact the upper part of the hammer rod, which will bring out a part of the detection rod, and the contact part of the detection rod with the soil will loosen, thereby increasing the error of the detection result. The one-way mechanism can limit the upward movement of the detection rod, so that the contact part of the detection rod with the soil cannot loosen, further improving the accuracy of the detection.

[0022] Fourthly, the wheel meter of the present invention can only rotate in one direction by means of the wheel meter, and the wheel meter can detect the sum of the circumferences of the number of rotations of the wheel, thereby detecting the downward movement distance of the detection rod, without the need for manual measurement by technicians;

[0023] Fifthly, the present invention does not require technicians to manually push up the drop hammer. When the drop hammer is adsorbed by the electromagnet, it will stay in the air for a period of time, ensuring that the drop hammer is in free fall from the moment when the speed is zero, thereby improving the accuracy of the detection result. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] 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.

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the three-dimensional structure of the detection component and the support component of the present invention;

[0027] Figure 3 It is a schematic diagram of the three-dimensional structure of the detection component of the present invention;

[0028] Figure 4 This is a schematic diagram of the three-dimensional structure of the support assembly of the present invention from a first viewing angle;

[0029] Figure 5 This is a schematic diagram of the three-dimensional structure of the support assembly of the present invention from a second viewing angle;

[0030] Figure 6 It is a schematic diagram of the three-dimensional structure of the fixing frame area of ​​the present invention;

[0031] Figure 7 For the present invention Figure 6 The enlarged structural diagram at A in the middle;

[0032] Figure 8It is a schematic diagram of the cross-sectional structure of the circular ring block of the present invention.

[0033] Reference numerals:

[0034] 1. Digital display host; 2. Detection component; 3. Support component; 4. Detection rod; 5. Hammer rod; 6. Drop hammer; 7. Ring handle; 8. Electromagnet; 9. Circular groove shell; 10. Circular ring plate; 11. Oblique notch; 12. First cylindrical block; 13. Sliding block; 14. Wheel meter; 15. One-way bearing; 16. Wheel sleeve; 17. Outer ring; 18. Support plate; 19. Positioning plate; 20. Fixing plate; 21. Spring fixed plate Position pin; 22. Internal gear ring; 23. Shaft gear column; 24. Stopper; 25. Straight notch; 26. Second cylindrical block; 27. Fixed frame; 28. Ring block; 29. ​​Contact block; 30. Servo motor; 31. Synchronous belt; 32. Push block; 33. Synchronous wheel; 34. Self-resetting toggle switch; 35. Sliding pin; 36. Limiting ring; 37. Tightening spring; 38. Thin neck; 39. Guide groove; 40. Probe. DETAILED DESCRIPTION

[0035] 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.

[0036] The present invention provides a digital display electromagnetic dynamic penetration automatic detector through improvement. The technical solution of the present invention is:

[0037] Embodiment 1:

[0038] like Figures 1 to 8 As shown, the digital display electromagnetic dynamic penetration automatic detection instrument of the present invention comprises a digital display host 1 and a detection component 2, wherein the detection component 2 comprises an electromagnet 8, a drop hammer 6, a hammer rod 5, a detection rod 4 and a probe 40;

[0039] The electromagnet 8 has an overall ring-shaped profile and is fixedly mounted on one end of the hammer rod 5. The other end of the hammer rod 5 is provided with a stopper 24 with an integral structure therewith. The hammer rod 5 is coaxially fixed with the detection rod 4, the detection rod 4 is coaxially fixed with the probe 40, and the drop hammer 6 is slidably sleeved on the hammer rod 5. In order to reduce the friction damage between the drop hammer 6 and the hammer rod 5, a ball sleeve can be sleeved on the outer side of the hammer rod 5, and then the drop hammer 6 and the ball sleeve are coaxially fixed, and the drop hammer 6 is located between the electromagnet 8 and the stopper 24.

[0040] Among them, the electromagnet 8 establishes an electrical connection with the digital display host 1;

[0041] Working principle: The technician brings the probe 40 into contact with the ground, and stands up the detection rod 4 so that the detection rod 4 is perpendicular to the ground, and starts the electromagnet 8 through the digital display host 1, and pushes the drop hammer 6 along the hammer rod 5 toward the electromagnet 8, the electromagnet 8 absorbs the drop hammer 6, turns off the electromagnet 8, the drop hammer 6 falls freely, the drop hammer 6 contacts the stop buckle 24, and the detection rod 4 moves down. At this time, the digital display host 1 counts as one, and then starts the electromagnet 8, and pushes the drop hammer 6 along the hammer rod 5 toward the electromagnet 8, the electromagnet 8 absorbs the drop hammer 6, turns off the electromagnet 8, the drop hammer 6 falls freely, the drop hammer 6 contacts the stop buckle 24, and the detection rod 4 moves down. At this time, the digital display host 1 counts as two, and repeats the above steps until the detection rod 4 is inserted into the specified depth. The number of closing times is the number of times the drop hammer 6 falls freely.

[0042] Embodiment 2:

[0043] Based on the digital display electromagnetic dynamic penetration automatic detection instrument provided in the first embodiment of the present application, the second embodiment of the present application proposes another digital display electromagnetic dynamic penetration automatic detection instrument. The second embodiment is only a preferred method of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment: Figure 1 , an annular handle 7 coaxially arranged therewith is fixed to the outer side of the drop hammer 6;

[0044] Working principle: The annular handle 7 is provided to facilitate technicians to apply an upward thrust to the drop hammer 6.

[0045] Embodiment three:

[0046] Based on the digital display electromagnetic dynamic penetration automatic detection instrument provided in the first embodiment of the present application, the third embodiment of the present application proposes another digital display electromagnetic dynamic penetration automatic detection instrument. The third embodiment is only a preferred method of the first embodiment, and the implementation of the third embodiment will not affect the independent implementation of the first embodiment: Figure 4 and Figure 5 As shown, a support assembly 3 is provided on the outer side of the detection rod 4, and the support assembly 3 includes a support mechanism, which includes a circular groove shell 9, a cylinder, an outer ring 17, an inner gear ring 22, a plurality of shaft gear columns 23 and a plurality of support plates 18. A through hole coaxially arranged therewith is provided in the groove of the circular groove shell 9, and the circular groove shell 9 is slidably sleeved on the detection rod 4 through the through hole. The circular groove shell 9 is coaxially fixed with the cylinder, and a plurality of notches with its central axis as the center and distributed in an equidistant annular shape are provided at the bottom end of the cylinder, one end of the plurality of shaft gear columns 23 is rotatably installed in each notch, and the other ends of the plurality of shaft gear columns 23 are respectively fixed to one end of the plurality of support plates 18, the outer ring 17 is coaxially fixed with the cylinder, and the inner side of the outer ring 17 is rotatably installed with the inner gear ring 22 through a bearing, and each shaft gear column 23 is meshed with the inner gear ring 22;

[0047] Working principle: one of the support plates 18 is pushed toward the outside of the outer cylinder, and the support plate 18 drives the axial gear column 23 fixed thereto to rotate, and the axial gear column 23 drives the internal gear ring 22 meshing therewith to rotate, and the internal gear ring 22 drives the remaining axial gear columns 23 to rotate, and the remaining axial gear columns 23 turn the outside of the remaining support plates 18 out, and then the entire support mechanism is placed on the ground, which is convenient for technicians to stabilize the detection rod 4 and reduce the labor intensity of technicians. At the same time, the technical mechanism can be stored, which is convenient for storage and carrying.

[0048] Embodiment 4:

[0049] Based on the digital display electromagnetic dynamic penetration automatic detection instrument provided in the third embodiment of the present application, the fourth embodiment of the present application proposes another digital display electromagnetic dynamic penetration automatic detection instrument. The fourth embodiment is only a preferred embodiment of the third embodiment, and the implementation of the fourth embodiment will not affect the independent implementation of the third embodiment: Figure 4 As shown, the support assembly 3 also includes a one-way mechanism, which includes a plurality of sliders 13. The inner side wall of the circular groove shell 9 is provided with a plurality of sliding openings with its central axis as the center and distributed in an equidistant annular pattern. The plurality of sliders 13 are respectively slidably arranged in each sliding opening. A straight slot 25 is provided at the bottom of the sliding opening. A second cylindrical block 26 is rotatably installed at the bottom of the slider 13, and the second cylindrical block 26 is slidably arranged in the straight slot 25. A circular ring plate 10 is rotatably installed at the top position in the groove of the circular groove shell 9. The annular surface of the circular ring plate 10 is provided with a plurality of circular openings with its central axis as the center and distributed in an equidistant annular pattern. The first cylindrical block 12 is rotatably mounted on the top of the oblique slot 11 and the first cylindrical block 12 is slidably arranged in the oblique slot 11. A notch is provided at one end of the slider 13 facing the central axis of the circular groove shell 9. A fixed shaft is fixed inside the notch, and a one-way bearing 15 is installed on the fixed shaft. A wheel sleeve 16 is fixed on the outer ring of the one-way bearing 15. A positioning plate 19 is fixed on one side of the circular ring plate 10. A fixing plate 20 is fixed on the outer side of the circular groove shell 9. A spring positioning pin 21 is fixed on the outer side of the fixing plate 20. A positioning hole matching the spring positioning pin 21 is provided on the outer side of the positioning plate 19.

[0050] Working principle: The technician moves the positioning plate 19 to move the annular plate 10. The oblique notch 11 on the annular plate 10 pushes the slider 13 out of the sliding port through the first cylindrical block 12, and pulls out the positioning pin in the spring positioning pin 21. When the positioning pin is aligned with the positioning hole on the positioning plate 19, the positioning pin in the spring positioning pin 21 is then inserted into the positioning hole. At this time, the wheel sleeve 16 on the slider 13 contacts the detection rod 4. Due to the setting of the one-way bearing 15, the wheel sleeve 16 can rotate during the downward movement of the detection rod 4 (that is, the inner and outer rings of the one-way bearing 15 can rotate relative to each other). The detection rod 4 has a tendency to move upward, and the wheel sleeve 16 is 6 cannot rotate (that is, the inner and outer rings of the one-way bearing 15 cannot rotate relative to each other), and the detection rod 4 cannot move up; therefore, the arrangement of each wheel sleeve 16 in the one-way mechanism can further improve the stability of the process of the detection rod 4 moving downward. When the drop hammer 6 is attracted by the electromagnet 8, the drop hammer 6 will impact the upper part of the hammer rod 5, and will bring out a part of the detection rod 4. The contact part of the detection rod 4 with the soil will loosen, thereby increasing the error of the detection result. The one-way bearing 15 in the one-way mechanism can limit the upward movement of the detection rod 4, thereby preventing the contact part of the detection rod 4 with the soil from loosening, further improving the accuracy of the detection.

[0051] Embodiment five:

[0052] Based on the digital display electromagnetic dynamic penetration automatic detection instrument provided in the fifth embodiment of the present application, the fourth embodiment of the present application proposes another digital display electromagnetic dynamic penetration automatic detection instrument. The fifth embodiment is only a preferred embodiment of the fourth embodiment, and the implementation of the fifth embodiment will not affect the independent implementation of the fourth embodiment: Figure 2 and Figure 4 As shown, a wheel meter 14 is fixedly mounted on the outer side of one of the sliders 13, and the speed measuring wheel of the wheel meter 14 is in contact with the wheel sleeve 16, and the wheel meter 14 is electrically connected to the digital display host 1;

[0053] Working principle: Through the wheel meter 14, the wheel sleeve 16 can only rotate in one direction. The wheel meter 14 can detect the sum of the circumferences of the number of rotations of the wheel sleeve 16, thereby detecting the downward movement distance of the detection rod 4, without the need for manual measurement by technicians.

[0054] Embodiment six:

[0055] Based on the digital display electromagnetic dynamic penetration automatic detection instrument provided in the sixth embodiment of the present application, the sixth embodiment of the present application proposes another digital display electromagnetic dynamic penetration automatic detection instrument. The sixth embodiment is only a preferred method of the first embodiment, and the implementation of the sixth embodiment will not affect the independent implementation of the first embodiment: Figure 6 , Figure 7 and Figure 8A circular ring block 28 coaxially arranged therewith is fixed on the top of the drop hammer 6, and a plurality of key blocks equidistantly distributed in a circular ring with its central axis as the center are fixed inside the circular ring block 28. A plurality of guide grooves 39 equidistantly distributed in a circular ring with its central axis as the center are opened on the outer side of the hammer rod 5, and a plurality of key blocks are slidably arranged in each guide groove 39, and the key blocks of the circular ring block 28 are slidably arranged in the guide groove 39, so that the circular ring block 28 cannot rotate relative to the hammer rod 5;

[0056] Furthermore, combined with Figure 6 and Figure 8 As shown, a countersunk groove is provided on the inner side of the circular ring block 28, a sliding pin 35 is slidably provided in the small hole of the countersunk groove, a limiting ring 36 coaxially provided therewith is fixed to the outer side of the sliding pin 35, a tightening spring 37 is sleeved on the outer side of the sliding pin 35, and the tightening spring 37 applies a force to the limiting ring 36, so that the sliding pin 35 contacts the hammer rod 5, and the end of the hammer rod 5 close to the electromagnet 8 contracts inwardly to form a narrow neck 38, and a groove covering the end of the countersunk small hole is provided on the outer side of the circular ring block 28, and A contact block 29 is slidably arranged in the groove, and the contact block 29 is fixed with the sliding pin 35. When the drop hammer 6 moves upward, the tensioning spring 37 applies a force to the limit ring 36, so that the sliding pin 35 is always in contact with the hammer rod 5. When the drop hammer 6 approaches the electromagnet 8, the drop hammer 6 is adsorbed by the electromagnet 8, and the drop hammer 6 enters the narrow neck 38 of the hammer rod 5. The tensioning spring 37 is extended, and the sliding pin 35 is in contact with the narrow neck 38 of the hammer rod 5, and the sliding pin 35 pulls the contact block 29 back into the groove.

[0057] Furthermore, a fixing frame 27 is fixed to the outside of the hammer rod 5, a synchronous wheel 33 is rotatably installed inside the fixing frame 27, a synchronous belt 31 is sleeved on the outside of the two synchronous wheels 33, a pushing block 32 is fixed to the outside of the synchronous belt 31, a servo motor 30 is fixed to the outside of the fixing frame 27, the output shaft of the servo motor 30 is coaxially fixed to one of the synchronous wheels 33, the servo motor 30 is electrically connected to the digital display host 1, the servo motor 30 causes the synchronous wheel 33 coaxially fixed thereto to rotate at a certain speed through the output shaft, and the two synchronous wheels 33 rotate synchronously through the synchronous belt 31, so as to attach Figure 6 For example, the synchronous wheel 33 rotates clockwise, and the synchronous belt 31 moves the pushing block 32 below the contact block 29 . After the pushing block 32 contacts the contact block 29 , the pushing block 32 pushes the drop hammer 6 upward with the help of the contact block 29 .

[0058] Furthermore, a self-resetting toggle switch 34 is fixed to the top of the hammer rod 5, and the self-resetting toggle switch 34 establishes an electrical connection with the digital display host 1; when the contact block 29 is retracted into the groove, the push block 32 and the contact block 29 are separated from each other, and the push block 32 is connected to the self-resetting toggle switch 34 at the arc of the top synchronous wheel 33, and the self-resetting toggle switch 34 is toggled, and the self-resetting toggle switch 34 turns off the electromagnet 8, and the drop hammer 6 falls freely, and the digital display host 1 records the number of closing times.

[0059] Working principle: The servo motor 30 rotates the synchronous wheel 33 coaxially fixed with it at a certain speed through the output shaft. The two synchronous wheels 33 rotate synchronously through the synchronous belt 31 to attach Figure 6 For example, the synchronous wheel 33 rotates clockwise, and the synchronous belt 31 moves the push block 32 below the contact block 29. After the push block 32 contacts the contact block 29, the push block 32 pushes the drop hammer 6 upward with the help of the contact block 29. When the drop hammer 6 moves upward, the tightening spring 37 applies a force to the limit ring 36, so that the sliding pin 35 is in contact with the hammer rod 5 at all times. When the drop hammer 6 approaches the electromagnet 8, the drop hammer 6 is attracted by the electromagnet 8, and the drop hammer 6 enters the narrow neck 38 of the hammer rod 5. , the tensioning spring 37 is extended, the sliding pin 35 contacts the narrow neck 38 of the hammer rod 5, and the sliding pin 35 pulls the contact block 29 back into the groove. When the contact block 29 is retracted into the groove, the pushing block 32 and the contact block 29 are separated from each other, and the pushing block 32 contacts the self-resetting toggle switch 34 at the arc of the top synchronous wheel 33. The self-resetting toggle switch 34 is toggled, and the self-resetting toggle switch 34 turns off the electromagnet 8, and the falling hammer 6 falls freely, and the digital display host 1 records the number of closing times.

[0060] 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 digital display electromagnetic dynamic penetration automatic detection instrument, comprising a digital display host (1) and a detection component (2), characterized in that: The detection assembly (2) comprises an electromagnet (8), a drop hammer (6), a hammer rod (5), a detection rod (4) and a probe (40); The electromagnet (8) has an overall annular profile and is fixedly mounted on one end of a hammer rod (5); a stopper (24) integrally formed with the hammer rod (5) is provided at the other end of the hammer rod (5); the hammer rod (5) is coaxially fixed to the detection rod (4); the detection rod (4) is coaxially fixed to the probe (40); a drop hammer (6) is slidably sleeved on the hammer rod (5); and the drop hammer (6) is located between the electromagnet (8) and the stopper (24); Wherein, the electromagnet (8) is electrically connected to the digital display host (1); A support assembly (3) is arranged on the outer side of the detection rod (4), the support assembly (3) comprises a support mechanism and a one-way mechanism, and the support mechanism comprises a circular groove shell (9); The one-way mechanism comprises a plurality of sliders (13), the inner side wall of the circular groove shell (9) is provided with a plurality of sliding openings with the central axis as the center and distributed in an equidistant annular pattern, the plurality of sliders (13) are slidably arranged in each sliding opening, the bottom of the sliding opening is provided with a straight slot (25), a second cylindrical block (26) is rotatably mounted on the bottom of the slider (13), and the second cylindrical block (26) is slidably arranged in the straight slot (25), a circular ring plate (10) is rotatably mounted at the top position in the groove of the circular groove shell (9), the annular surface of the circular ring plate (10) is provided with a plurality of oblique slots (11) with the central axis as the center and distributed in an equidistant annular pattern, the slider (13) ) is rotatably mounted on the top of the circular groove shell (9), and the first cylindrical block (12) is slidably arranged in the inclined groove (11), a notch is formed at one end of the slider (13) facing the central axis of the circular groove shell (9), a fixed shaft is fixed inside the notch, and a one-way bearing (15) is mounted on the fixed shaft, a wheel sleeve (16) is fixed to the outer ring of the one-way bearing (15), a positioning plate (19) is fixed to one side of the circular ring plate (10), a fixing plate (20) is fixed to the outer side of the circular groove shell (9), a spring positioning pin (21) is fixed to the outer side of the fixing plate (20), and a positioning hole matched with the spring positioning pin (21) is formed on the outer side of the positioning plate (19).

2. The digital display electromagnetic dynamic penetration automatic detection instrument according to claim 1 is characterized in that: An annular handle (7) coaxially arranged therewith is fixed on the outer side of the drop hammer (6).

3. The digital display electromagnetic dynamic penetration automatic detection instrument according to claim 1 is characterized in that: The support mechanism further comprises a cylinder, an outer ring (17), an inner gear ring (22), a plurality of shaft gear columns (23) and a plurality of support plates (18). A through hole coaxially arranged therewith is provided in the groove of the circular groove shell (9). The circular groove shell (9) is slidably sleeved on the detection rod (4) through the through hole. The circular groove shell (9) is coaxially fixed to the cylinder. A plurality of notches equidistantly distributed in annular shapes with the central axis of the cylinder as the center are provided at the bottom end of the cylinder. One end of the plurality of shaft gear columns (23) are rotatably mounted in each notch. The other ends of the plurality of shaft gear columns (23) are respectively fixed to one end of the plurality of support plates (18). The outer ring (17) is coaxially fixed to the cylinder. The inner side of the outer ring (17) is rotatably mounted with the inner gear ring (22) via a bearing. Each of the shaft gear columns (23) is meshed with the inner gear ring (22).

4. The digital display electromagnetic dynamic penetration automatic detection instrument according to claim 1 is characterized in that: A wheel meter (14) is fixedly mounted on the outer side of one of the sliders (13), and a speed measuring wheel of the wheel meter (14) is in contact with a wheel sleeve (16), and the wheel meter (14) is electrically connected to the digital display host (1).

5. The digital display electromagnetic dynamic penetration automatic detection instrument according to claim 1 is characterized in that: A circular ring block (28) coaxially arranged therewith is fixed on the top of the drop hammer (6), a plurality of key blocks equidistantly distributed in a circular ring with its central axis as the center of the circle are fixed inside the circular ring block (28), a plurality of guide grooves (39) equidistantly distributed in a circular ring with its central axis as the center of the circle are opened on the outer side of the hammer rod (5), and a plurality of key blocks are slidably arranged in each guide groove (39); A countersunk groove is provided on the inner side of the circular ring block (28), a sliding pin (35) is slidably arranged in the small hole of the countersunk groove, a limiting ring (36) coaxially arranged therewith is fixed on the outer side of the sliding pin (35), a tightening spring (37) is sleeved on the outer side of the sliding pin (35), and the tightening spring (37) applies a force to the limiting ring (36) so that the sliding pin (35) contacts the hammer rod (5), and the end of the hammer rod (5) close to the electromagnet (8) shrinks inward to form a thin neck (38), and a groove covering the end of the countersunk small hole is provided on the outer side of the circular ring block (28), and a contact block (29) is slidably arranged in the groove, and the contact block (29) is fixed to the sliding pin (35); A fixing frame (27) is fixed on the outside of the hammer rod (5), a synchronous wheel (33) is rotatably mounted inside the fixing frame (27), a synchronous belt (31) is sleeved on the outside of the two synchronous wheels (33), a pushing block (32) is fixed on the outside of the synchronous belt (31), a servo motor (30) is fixed on the outside of the fixing frame (27), an output shaft of the servo motor (30) is coaxially fixed to one of the synchronous wheels (33), and the servo motor (30) is electrically connected to the digital display host (1).

6. The digital display electromagnetic dynamic penetration automatic detection instrument according to claim 5 is characterized in that: A self-resetting toggle switch (34) is fixed to the top end of the hammer rod (5), and the self-resetting toggle switch (34) is electrically connected to the digital display host (1).

Images