An auxiliary detection device for a reinforcing bar coupling sleeve

Abstract

This invention discloses an auxiliary testing device for rebar connecting sleeves, comprising a workbench with a feeding channel installed on one side of its upper end, a lifting frame mounted on the upper end of the workbench, a limit sleeve rotatably mounted on the upper end of the lifting frame, a drive frame mounted on the upper end of the lifting frame, a telescopic frame mounted on the upper end of the workbench, a pressure sensor mounted on one end of the telescopic frame, a discharge channel mounted above the feeding channel, and a pusher frame mounted on the telescopic frame. The advantages of this invention are that it can automatically feed, position, assist in testing, and unload the rebar connecting sleeves, allowing workers to test them, thus improving work efficiency and reducing the labor intensity of workers.

Description

Technical Field

[0001] This invention relates to the field of rebar connection sleeve testing equipment, and more specifically, to an auxiliary testing device for rebar connection sleeves. Background Technology

[0002] The core purpose of thread inspection on rebar connecting sleeves is to ensure the reliability of the connection and the safety of the structure. The thread is the core part of the sleeve that enables the transmission of rebar force, and its processing quality directly affects the strength, tightness and durability of the joint. Uninspected threads may have processing defects, leading to loose connections, stripping, or even structural failure.

[0003] In existing technology, when inspecting the threads on rebar connecting sleeves, go gauges and no-go gauges are generally used. The go gauge should be able to be screwed in smoothly, and the no-go gauge should not be screwed in to a depth exceeding 3P (3 thread pitches). According to industry standards, when using go gauges and no-go gauges to inspect the threads of rebar connecting sleeves, mechanical equipment should not be used to assist in the rotation of the go gauges and no-go gauges to prevent inaccurate inspection. Therefore, workers usually pick up the rebar connecting sleeves and then use go gauges and no-go gauges to inspect them. Since the rebar connecting sleeves are relatively heavy, having workers pick them up for inspection is not only inefficient but also increases the labor intensity of the workers. Summary of the Invention

[0004] The purpose of this invention is to solve the problems of low work efficiency and high labor intensity when inspecting the threads of rebar connecting sleeves, and to design an auxiliary inspection device for rebar connecting sleeves.

[0005] To achieve the above objectives, the technical solution of the present invention is an auxiliary detection device for rebar connecting sleeves, comprising a workbench, a feeding channel installed on one side of the upper end of the workbench, allowing the rebar connecting sleeve to slide within the feeding channel via mechanical equipment, a lifting frame installed on the upper end of the workbench, a limit sleeve rotatably mounted on the upper end of the lifting frame, a drive frame installed on the upper end of the lifting frame, the drive frame driving the limit sleeve to rotate, a telescopic frame installed on the upper end of the workbench, the telescopic frame positioning the rebar connecting sleeve, a pressure sensor installed at one end of the telescopic frame, an alarm connected to the pressure sensor, the telescopic frame driving the pressure sensor to move in and out of the rebar connecting sleeve, a discharge channel installed above the feeding channel, and a push frame installed on the telescopic frame, the push frame pushing the rebar connecting sleeve within the limit sleeve onto the discharge channel.

[0006] Furthermore, the lifting frame includes a lifting plate located above the workbench, a limiting sleeve rotatably mounted on the lifting plate, a support plate located below the workbench, the support plate being mounted on the workbench via multiple connecting rods, round holes opening on the workbench on both sides below the lifting plate, and multi-stage electric telescopic rods mounted on both sides of the upper end of the support plate, the telescopic ends of the multi-stage electric telescopic rods passing through the round holes and connecting to the lower end of the lifting plate.

[0007] Furthermore, the telescopic frame includes fixed platforms installed on both sides of the upper end of the workbench. The inner side of the fixed platforms has a guide groove. A moving rod is provided between the two fixed platforms. Guide wheels are installed at both ends of the moving rod. One end of the guide wheel extends into the guide groove. A constraint cylinder is installed on the outer side of the moving rod. The lower end of the constraint cylinder is installed on the lifting plate. The moving rod passes through the constraint cylinder. A pressure sensor is installed at the front end of the moving rod. Push blocks are installed at the upper and lower ends of the moving rod. The upper and lower ends of the constraint cylinder have notches to avoid the push blocks.

[0008] Furthermore, a rotating shaft is provided above the lifting plate, and a first rolling bearing is installed at the lower end of the rotating shaft. The lower end of the first rolling bearing is installed on the upper surface of the lifting plate. The limiting sleeve includes a lower sleeve and an upper sleeve. The lower sleeve is installed on the upper end of the rotating shaft, and the upper sleeve is upside down on top of the lower sleeve. Multiple first fixing plates are installed at the lower ends of both sides of the lower sleeve. A guide cylinder is installed at the upper end of the first fixing plate. Multiple second fixing plates are installed at the upper ends of both sides of the upper sleeve. A guide rod is installed at the lower end of the second fixing plate. The lower end of the guide rod extends into the guide cylinder. The lower end of the guide rod is connected to the upper end of the first fixing plate through a connecting spring. A limiting plate is installed at the upper end of the guide rod. Support blocks are installed on both sides of the upper end of the worktable. The support blocks are located below the limiting plate on one side of the upper sleeve. A positioning plate is installed on one side of the lower end of the fixed table. The positioning plate is located below the limiting plate on the other side of the upper sleeve.

[0009] Furthermore, the drive frame includes a first bevel gear mounted on a rotating shaft, a second bevel gear meshing with one side of the first bevel gear, a drive shaft mounted on the second bevel gear, a second rolling bearing mounted on the drive shaft, the lower end of the second rolling bearing mounted on a lifting plate via a fixing rod, a drive gear mounted on one end of the drive shaft, a fixed rack above the drive gear, and the fixed rack mounted on a fixed platform.

[0010] Furthermore, a guide slide is installed on the upper end of the support block, and square openings are opened on both sides of the upper end of the guide slide. When the transmission gear meshes with the fixed rack, the limiting plate rotates to the square opening.

[0011] Furthermore, the inner upper and lower ends of the square opening are provided with inclined surfaces.

[0012] Furthermore, an L-shaped limiting block is installed on one side of the lower end of the upper sleeve.

[0013] Further, a square through hole is formed in the moving rod. The pushing frame includes an electric push rod installed on one side inside the square through hole. The telescopic end of the electric push rod is installed with a moving plate, and pushing rods are installed on both sides of the moving plate. The pushing rods can contact the steel bar connecting sleeve.

[0014] Further, an intercepting frame is also installed on the workbench. The intercepting frame includes an intercepting block located on one side below the feeding channel. The lower end of the intercepting block is installed on the workbench. A square groove is formed at the upper end of the intercepting block. An intercepting plate is arranged in the square groove. The lower end of the intercepting plate is connected to the lower surface inside the square groove through a plurality of telescopic springs. One side of the upper end of the intercepting plate is installed with a lifting block, and the lifting block is located below the limiting sleeve.

[0015] The beneficial effects of the present invention: The steel bar connecting sleeve can be moved into the limiting sleeve through the feeding channel, and then the steel bar connecting sleeve is limited by the telescopic frame, and the pressure sensor extends to the inside of the steel bar connecting sleeve. The distance between the detection end of the pressure sensor and the starting end of the thread of the steel bar connecting sleeve is less than 3P. The steel bar connecting sleeve is limited by the limiting sleeve. The staff screws one end of the no-go gauge into the steel bar connecting sleeve. If the no-go gauge cannot be rotated when it reaches the limit and does not contact the pressure sensor, it means that the screwing depth of the no-go gauge does not exceed 3P, and this test is qualified. If the screwing depth is too deep and touches the pressure sensor, it means that this item is unqualified. Then the pressure sensor is moved to the outside of the steel bar connecting sleeve. The staff uses the go gauge to test the steel bar connecting sleeve. If the go gauge passes smoothly, this test is qualified. If the go gauge does not pass smoothly, this item is unqualified. Then the steel bar connecting sleeve is rotated, and the other end is rotated to one side of the no-go gauge, and the pressure sensor is moved to the inside of the steel bar connecting sleeve. The staff uses the no-go gauge to test the thread at the other end of the steel bar connecting sleeve and judges whether this item is qualified. After the test is completed, the steel bar connecting sleeve is discharged, and the staff takes out the unqualified products. This device can automatically load, position, assist in testing, and unload the steel bar connecting sleeve, and then the staff tests it, improving work efficiency and reducing the labor intensity of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of an auxiliary detection device for a steel bar connecting sleeve according to the present invention; Figure 2 is Figure 1 a partial enlarged view of A in Figure 3 is Figure 1 a partial enlarged view of B in Figure 4 is Figure 1 a partial enlarged view of C in Figure 5This is a top view of an auxiliary detection device for rebar connection sleeves according to the present invention; Figure 6 yes Figure 5 A magnified view of a section at point D; Figure 7 This is a schematic diagram of the structure of the limiting sleeve described in this invention; Figure 8 This is a schematic diagram showing the positional relationship between the limiting plate and the guide slide described in this invention; Figure 9 This is a schematic diagram showing the positional relationship between the telescopic frame and the push frame described in this invention; In the diagram, 1. Workbench; 2. Feeding channel; 3. Lifting frame; 4. Limiting sleeve; 5. Drive frame; 6. Telescopic frame; 7. Pressure sensor; 8. Discharge channel; 9. Pushing frame; 10. Lifting plate; 11. Support plate; 12. Connecting rod; 13. Circular hole; 14. Multi-stage electric telescopic rod; 15. Fixed platform; 16. Guide groove; 17. Moving rod; 18. Guide wheel; 19. Constraint cylinder; 20. Pushing block; 21. Notch; 22. Rotating shaft; 23. First rolling bearing; 24. Lower sleeve; 25. Upper sleeve; 26. First fixed plate; 27. Guide cylinder; 28. 29. Second fixed plate; 30. Guide rod; 31. Connecting spring; 32. Limiting plate; 33. Support block; 34. Positioning plate; 35. First bevel gear; 36. Second bevel gear; 37. Drive shaft; 38. Second rolling bearing; 39. Fixed rod; 40. Drive gear; 41. Fixed rack; 42. Guide slide; 43. Square opening; 44. L-shaped limiting block; 45. Square through hole; 46. Electric push rod; 47. Moving plate; 48. Push rod; 49. Interception frame; 50. Interception block; 51. Square groove; 52. Interception plate; 53. Telescopic spring; 54. Lifting block. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, 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.

[0018] In the description of this invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, in the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0019] This invention provides, for example Figure 1-9 An auxiliary detection device for rebar connecting sleeves is shown, comprising a workbench 1, a feeding channel 2 installed on one side of the upper end of the workbench 1, allowing the rebar connecting sleeve to slide within the feeding channel 2 via mechanical equipment, a lifting frame 3 installed on the upper end of the workbench 1, a limit sleeve 4 rotatably mounted on the upper end of the lifting frame 3, a drive frame 5 installed on the upper end of the lifting frame 3, the drive frame 5 driving the limit sleeve 4 to rotate, a telescopic frame 6 installed on the upper end of the workbench 1, the telescopic frame 6 positioning the rebar connecting sleeve, a pressure sensor 7 installed at one end of the telescopic frame 6, the pressure sensor 7 being externally connected to an alarm, the telescopic frame 6 driving the pressure sensor 7 to move in and out of the rebar connecting sleeve, a discharge channel 8 installed above the feeding channel 2, and a push frame 9 installed on the telescopic frame 6, the push frame 9 pushing the rebar connecting sleeve within the limit sleeve 4 onto the discharge channel 8.

[0020] The process of this device for testing rebar connecting sleeves is as follows: Under normal conditions, the lifting frame 3 moves the limiting sleeve 4 to one side of the feeding channel 2, and the telescopic frame 6 pushes the pressure sensor 7 to the inside of the limiting sleeve 4. Then, the feeding device can neatly arrange the rebar connecting sleeves in the feeding channel 2, allowing the rebar connecting sleeves to slide through the feeding channel 2 into the limiting sleeve 4. The telescopic frame 6 limits the rebar connecting sleeves, ensuring that the distance between the detection end of the pressure sensor 7 and the starting end of the inner thread of the rebar connecting sleeve is less than 3P. The operator controls the operation of the lifting frame 3 through an external controller, which drives the limiting sleeve 4 upward. After the limiting sleeve 4 moves the rebar connecting sleeve to the upper side of the feeding channel 2, the operator uses a stop gauge to test the internal thread of the rebar connecting sleeve. The operator screws one end of the stop gauge into the rebar connecting sleeve. If the stop gauge rotates to the point where it cannot rotate further and does not contact the pressure sensor 7, it means that the screw-in depth of the stop gauge does not exceed 3P, and this test is qualified. If it is screwed in too deeply and touches the pressure sensor... If pressure sensor 7 fails to pass inspection, it indicates that this item is unqualified. An alarm connected to pressure sensor 7 will sound to alert the staff. Then, telescopic frame 6 will move pressure sensor 7 to the outside of the rebar connecting sleeve. The staff will use a go gauge to check the thread of the rebar connecting sleeve. If the go gauge passes smoothly, this item is qualified; if it fails, this item is unqualified. Then, drive frame 5 will rotate limit sleeve 4, which will flip the rebar connecting sleeve. Telescopic frame 6 will push pressure sensor 7 to the designated position again. The staff will use a no-go gauge to check the thread of the other end of the rebar connecting sleeve and determine whether this item is qualified. After the inspection is completed, lifting frame 3 will move limit sleeve 4 and rebar connecting sleeve to the side of discharge channel 8. Then, push frame 9 will push the rebar connecting sleeve into discharge channel 8 for unloading. Then, push frame 9 will return to its original position. Lifting frame 3 will move limit sleeve 4 to the side of feed channel 2. The above process will be repeated to perform auxiliary inspection of the rebar connecting sleeve.

[0021] Refer to the instruction manual appendix Figure 1 Instruction manual attached Figure 2 Instruction manual attached Figure 5 Included with instruction manual Figure 6The lifting frame 3 includes a lifting plate 10 located above the workbench 1. A limiting sleeve 4 is rotatably mounted on the lifting plate 10. A support plate 11 is provided below the workbench 1. The support plate 11 is mounted on the workbench 1 via multiple connecting rods 12. Circular holes 13 are provided on both sides of the lower part of the lifting plate 10 and are opened on the workbench 1. Multi-stage electric telescopic rods 14 are installed on both sides of the upper end of the support plate 11. The telescopic ends of the multi-stage electric telescopic rods 14 pass through the circular holes 13 and are connected to the lower end of the lifting plate 10. When the multi-stage electric telescopic rods 14 are activated, they extend or retract, thereby driving the lifting plate 10 to move up and down. When the lifting plate 10 moves up and down, the limiting sleeve 4 can move up and down.

[0022] Refer to the instruction manual appendix Figure 1 Instruction manual attached Figure 2 Instruction manual attached Figure 3 Instruction manual attached Figure 5 Instruction manual attached Figure 6 Included with instruction manual Figure 9 The telescopic frame 6 includes fixed platforms 15 installed on both sides of the upper end of the workbench 1. The inner side of the fixed platform 15 has a guide groove 16. A moving rod 17 is provided between the two fixed platforms 15. Guide wheels 18 are installed at both ends of the moving rod 17. One end of the guide wheel 18 extends into the guide groove 16. A constraint cylinder 19 is installed on the outer side of the moving rod 17. The lower end of the constraint cylinder 19 is installed on the lifting plate 10. The moving rod 17 passes through the constraint cylinder 19. A pressure sensor 7 is installed at the front end of the moving rod 17. Push blocks 20 are installed at the upper and lower ends of the moving rod 17. Notches 21 for avoiding the push blocks 20 are opened at the upper and lower ends of the constraint cylinder 19.

[0023] The process of limiting the rebar connecting sleeve by the telescopic frame 6 is as follows: When the lifting plate 10 moves up and down, it can drive the constraint cylinder 19 to move up and down. The constraint cylinder 19 can drive the moving rod 17 and the guide wheel 18 to move up and down. The guide groove 16 can limit the guide wheel 18. Then, when the moving rod 17 and the guide wheel 18 move up and down, the guide wheel 18 can slide along the guide groove 16, which can cause the moving rod 17 to extend and retract. The moving rod 17 can drive the pressure sensor 7 to extend and retract, which can cause the pressure sensor 7 to move in and out of the rebar connecting sleeve. When the moving rod 17 moves towards the rebar connecting sleeve, it can drive the push block 20 to move. The notch 21 can avoid the push block 20. When the push block 20 moves to the designated position, it can facilitate the limiting of the rebar connecting sleeve.

[0024] Refer to the instruction manual appendix Figure 1 Instruction manual attached Figure 2 Instruction manual attached Figure 3 Instruction manual attached Figure 4 Instruction manual attached Figure 5 Instruction manual attached Figure 6 Included with instruction manual Figure 7A rotating shaft 22 is provided above the lifting plate 10. A first rolling bearing 23 is installed at the lower end of the rotating shaft 22. The lower end of the first rolling bearing 23 is installed on the upper surface of the lifting plate 10. The limiting sleeve 4 includes a lower sleeve 24 and an upper sleeve 25. The lower sleeve 24 is installed on the upper end of the rotating shaft 22. The upper sleeve 25 is upside down on top of the lower sleeve 24. Multiple first fixing plates 26 are installed at the lower ends of both sides of the lower sleeve 24. Guide cylinders 27 are installed at the upper ends of the first fixing plates 26. Guide cylinders 27 are installed at the upper ends of both sides of the upper sleeve 25. Multiple second fixing plates 28 are provided. Guide rods 29 are installed at the lower end of the second fixing plates 28. The lower end of the guide rods 29 extends into the guide cylinder 27. The lower end of the guide rods 29 is connected to the upper end of the first fixing plate 26 through a connecting spring 30. A limit plate 31 is installed at the upper end of the guide rods 29. Support blocks 32 are installed on both sides of the upper end of the worktable 1. The support blocks 32 are located below the limit plate 31 on one side of the upper sleeve 25. A positioning plate 33 is installed on one side of the lower end of the fixing table 15. The positioning plate 33 is located below the limit plate 31 on the other side of the upper sleeve 25.

[0025] The process of limiting the rebar connecting sleeve 4 is as follows: When the lifting plate 10 moves downward to one side of the feeding channel 2, the lifting plate 10 can move the lower sleeve 24 downward through the first rolling bearing 23 and the rotating shaft 22. The lower sleeve 24 can drive the upper sleeve 25 downward through the first fixing plate 26, the connecting spring 30, the guide rod 29, and the second fixing plate 28. When the guide rod 29 moves downward, it can drive the limiting plate 31 downward. The support block 32 and the positioning plate 33 can intercept the limiting plate 31, thereby preventing the upper sleeve 25 from moving downward, and thus stretching the connecting spring 30. At this time, the upper sleeve 25 and the lower sleeve 24 are in a separated state. In this state, it is convenient for the rebar connecting sleeve to move onto the lower sleeve 24. When the lifting plate 10 moves upward, the first rolling bearing 23, the rotating shaft 22, and the lower sleeve 24 can move upward. Under the tension of the connecting spring 30, the lower sleeve 24 and the upper sleeve 25 are closed, thereby clamping the rebar connecting sleeve. The friction between the lower sleeve 24 and the upper sleeve 25 and the rebar connecting sleeve can prevent the rebar connecting sleeve from rotating when the operator tightens the go gauge and the stop gauge. When the push frame 9 pushes the rebar connecting sleeve to unload, it can overcome the friction between the lower sleeve 24 and the upper sleeve 25 and the rebar connecting sleeve to unload the rebar connecting sleeve.

[0026] Refer to the instruction manual appendix Figure 1 Instruction manual attached Figure 2 Instruction manual attached Figure 3 Instruction manual attached Figure 5 Included with instruction manual Figure 6The drive frame 5 includes a first bevel gear 34 mounted on a rotating shaft 22. A second bevel gear 35 meshes with one side of the first bevel gear 34. A drive shaft 36 is mounted on the second bevel gear 35. A second rolling bearing 37 is mounted on the drive shaft 36. The lower end of the second rolling bearing 37 is mounted on the lifting plate 10 via a fixing rod 38. A drive gear 39 is mounted on one end of the drive shaft 36. A fixed rack 40 is provided above the drive gear 39. The fixed rack 40 is mounted on a fixed platform 15.

[0027] The process of the drive frame 5 driving the steel bar connecting sleeve to rotate is as follows: Under normal conditions, the transmission gear 39 does not mesh with the fixed rack 40, and the limiting sleeve 4 keeps the steel bar connecting sleeve in the same position as the moving direction of the feed channel 2. When the lifting plate 10 moves upward, it can drive the fixed rod 38, the second rolling bearing 37, the transmission shaft 36, and the transmission gear 39 to move upward. When the transmission gear 39 meshes with the fixed rack 40, it can cause the transmission gear 39, the transmission shaft 36, and the second bevel gear 35 to rotate. The second bevel gear 35 meshes with the first bevel gear 34, which in turn causes the first bevel gear 34 and the rotating shaft 22 to rotate. When the transmission gear 39 disengages from the fixed rack 40, the rotating shaft 22 rotates 180 degrees, which in turn causes the limiting sleeve 4 to rotate 180 degrees and drive the steel bar connecting sleeve to rotate, thus making it easy to change the direction of the steel bar connecting sleeve.

[0028] Refer to the instruction manual appendix Figure 1 Instruction manual attached Figure 5 Included with instruction manual Figure 8 The upper end of the support block 32 is equipped with a guide slide 41. The guide slide 41 has square openings 42 on both sides of the upper end. Under normal conditions, one end of the limiting plate 31 is located in the guide slide 41, which can ensure the direction of the limiting sleeve 4 and the steel bar connecting sleeve. When the transmission gear 39 meshes with the fixed rack 40, the limiting plate 31 rotates to the square opening 42, which can facilitate the avoidance of the limiting plate 31.

[0029] Refer to the instruction manual appendix Figure 8 The upper and lower ends of the inner side of the square opening 42 are provided with inclined surfaces. After the transmission gear 39 separates from the fixed rack 40, if the limiting plate 31 does not correspond to the inner side of the guide slide 41, the limiting plate 31 can slide into the guide slide 41 through the guiding effect of the inclined surface, thereby ensuring the direction of the limiting sleeve 4 and the steel bar connecting sleeve.

[0030] Refer to the instruction manual appendix Figure 1 Instruction manual attached Figure 4 Instruction manual attached Figure 5 Instruction manual attached Figure 6 Included with instruction manual Figure 7An L-shaped limiting block 43 is installed on one side of the lower end of the upper sleeve 25. When the limiting sleeve 4 is located on one side of the feed channel 2, the L-shaped limiting block 43 is located behind the limiting sleeve 4. At this time, the limiting sleeve 4 is not in contact with the rebar connecting sleeve. When the limiting sleeve 4 drives the rebar connecting sleeve to rotate 180 degrees, the L-shaped limiting block 43 rotates to the front. At this time, the moving rod 17 and the pushing block 20 can be moved towards the rebar connecting sleeve through the guide groove 16 and the guide wheel 18. Then, the rebar connecting sleeve can be moved by the pushing block 20. The sleeve is pushed, and then the L-shaped limiting block 43 can limit the rebar connecting sleeve for easy inspection. After the inspection is completed, when the inspection sleeve 4 moves downward, the guide groove 16 and guide wheel 18 can move the moving rod 17 and the pushing block 20 away from the rebar connecting sleeve. Then, through the meshing of the fixed rack 40 and the transmission gear 39, the limiting sleeve 4 rotates back to its original position. When the limiting sleeve moves to the side of the discharge channel 8, the rebar connecting sleeve can be unloaded by the pushing frame 9.

[0031] Refer to the instruction manual appendix Figure 1 Instruction manual attached Figure 3 Included with instruction manual Figure 9 The movable rod 17 has a square through hole 44. The push frame 9 includes an electric push rod 45 installed on one side of the square through hole 44. The telescopic end of the electric push rod 45 is equipped with a movable plate 46. Push rods 47 are installed on both sides of the movable plate 46. The push rods 47 can contact the steel bar connecting sleeve.

[0032] The process of the pusher 9 unloading the steel bar connecting sleeve is as follows: Under normal conditions, the electric pusher 45 is in its shortest state. When the limiting sleeve 4 moves to one side of the discharge channel 8, the electric pusher 45 is extended, which in turn drives the moving plate 46 and the pusher 47 to move. The pusher 47 can push the steel bar connecting sleeve into the discharge channel 8. Then the electric pusher 8 is shortened, and the moving plate 46 and the pusher 47 are driven back to their original positions.

[0033] Refer to the instruction manual appendix Figure 1 Included with instruction manual Figure 2 The workbench 1 is also equipped with an interceptor frame 48, which includes an interceptor block 49 located on one side below the feed channel 2. The lower end of the interceptor block 49 is installed on the workbench 1. The upper end of the interceptor block 49 has a square groove 50. An interceptor plate 51 is provided in the square groove 50. The lower end of the interceptor plate 51 is connected to the lower surface of the square groove 50 through multiple telescopic springs 52. A lifting block 53 is installed on one side of the upper end of the interceptor plate 51. The lifting block 53 is located below the limit sleeve 4.

[0034] The process of the interceptor 48 limiting the rebar connecting sleeve is as follows: When the limiting sleeve 4 is located on one side of the feeding channel 2, the limiting sleeve 4 can push the lifting block 53 downward and cause the interceptor plate 51 to retract into the square groove 50, and compress the telescopic spring 52. At this time, the rebar connecting sleeve can be avoided. When the limiting sleeve 4 moves upward, it can avoid the lifting block 53. Then, under the elastic force of the telescopic spring 52, the interceptor plate 51 is pushed upward, which can then intercept the rebar connecting sleeve on the feeding channel 2 and prevent the rebar connecting sleeve from continuing to move.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An auxiliary testing device for rebar connecting sleeves, comprising a workbench (1), wherein a feeding channel (2) is installed on one side of the upper end of the workbench (1), and the rebar connecting sleeve can slide within the feeding channel (2) by means of mechanical equipment, characterized in that, The workbench (1) is equipped with a lifting frame (3) at the upper end. A limit sleeve (4) is rotatably installed on the upper end of the lifting frame (3). A drive frame (5) is installed on the upper end of the lifting frame (3). The drive frame (5) can drive the limit sleeve (4) to rotate. A telescopic frame (6) is installed on the upper end of the workbench (1). The telescopic frame (6) can position the rebar connecting sleeve. A pressure sensor (7) is installed at one end of the telescopic frame (6). An alarm is connected to the pressure sensor (7). The telescopic frame (6) can drive the pressure sensor (7) to enter and exit the rebar connecting sleeve. A discharge channel (8) is installed above the feeding channel (2). A push frame (9) is installed on the telescopic frame (6). The push frame (9) can push the rebar connecting sleeve in the limit sleeve (4) to the discharge channel (8).

2. The auxiliary detection device for rebar connection sleeves according to claim 1, characterized in that, The lifting frame (3) includes a lifting plate (10) located above the workbench (1), a limiting sleeve (4) is rotatably installed on the lifting plate (10), a support plate (11) is provided below the workbench (1), the support plate (11) is installed on the workbench (1) through multiple connecting rods (12), round holes (13) are provided on both sides below the lifting plate (10) on the workbench (1), and multi-stage electric telescopic rods (14) are installed on both sides of the upper end of the support plate (11), the telescopic ends of the multi-stage electric telescopic rods (14) pass through the round holes (13) and are connected to the lower end of the lifting plate (10).

3. The auxiliary detection device for rebar connection sleeves according to claim 2, characterized in that, The telescopic frame (6) includes fixed platforms (15) installed on both sides of the upper end of the workbench (1). The inner side of the fixed platform (15) has a guide groove (16). A moving rod (17) is provided between the two fixed platforms (15). Guide wheels (18) are installed at both ends of the moving rod (17). One end of the guide wheel (18) extends into the guide groove (16). A constraint cylinder (19) is installed on the outer side of the moving rod (17). The lower end of the constraint cylinder (19) is installed on the lifting plate (10). The moving rod (17) passes through the constraint cylinder (19). A pressure sensor (7) is installed at the front end of the moving rod (17). Push blocks (20) are installed at the upper and lower ends of the moving rod (17). The upper and lower ends of the constraint cylinder (19) have notches (21) to avoid the push blocks (20).

4. The auxiliary detection device for rebar connection sleeves according to claim 3, characterized in that, A rotating shaft (22) is provided above the lifting plate (10). A first rolling bearing (23) is installed at the lower end of the rotating shaft (22). The lower end of the first rolling bearing (23) is installed on the upper surface of the lifting plate (10). The limiting sleeve (4) includes a lower sleeve (24) and an upper sleeve (25). The lower sleeve (24) is installed at the upper end of the rotating shaft (22). The upper sleeve (25) is upside down on the lower sleeve (24). Multiple first fixing plates (26) are installed at the lower ends of the two sides of the lower sleeve (24). A guide cylinder (27) is installed at the upper end of the first fixing plate (26). Multiple guide cylinders (27) are installed at the upper ends of the two sides of the upper sleeve (25). The second fixed plate (28) has a guide rod (29) installed at its lower end. The lower end of the guide rod (29) extends into the guide cylinder (27). The lower end of the guide rod (29) is connected to the upper end of the first fixed plate (26) through a connecting spring (30). A limit plate (31) is installed at the upper end of the guide rod (29). Support blocks (32) are installed on both sides of the upper end of the worktable (1). The support blocks (32) are located below the limit plate (31) on one side of the upper sleeve (25). A positioning plate (33) is installed on one side of the lower end of the fixed table (15). The positioning plate (33) is located below the limit plate (31) on the other side of the upper sleeve (25).

5. An auxiliary testing device for rebar connection sleeves according to claim 4, characterized in that, The drive frame (5) includes a first bevel gear (34) mounted on a rotating shaft (22), a second bevel gear (35) meshing on one side of the first bevel gear (34), a drive shaft (36) mounted on the second bevel gear (35), a second rolling bearing (37) mounted on the drive shaft (36), the lower end of the second rolling bearing (37) being mounted on the lifting plate (10) via a fixing rod (38), a drive gear (39) mounted on one end of the drive shaft (36), a fixed rack (40) being provided above the drive gear (39), and the fixed rack (40) being mounted on a fixed platform (15).

6. The auxiliary detection device for rebar connection sleeves according to claim 5, characterized in that, The upper end of the support block (32) is equipped with a guide slide (41), and square openings (42) are opened on both sides of the upper end of the guide slide (41). When the transmission gear (39) meshes with the fixed rack (40), the limiting plate (31) rotates to the square opening (42).

7. An auxiliary detection device for rebar connection sleeves according to claim 6, characterized in that, The square opening (42) has inclined surfaces at the upper and lower ends of its inner side.

8. An auxiliary detection device for rebar connection sleeves according to claim 4, characterized in that, An L-shaped limiting block (43) is installed on one side of the lower end of the upper sleeve (25).

9. An auxiliary testing device for rebar connection sleeves according to claim 3, characterized in that, The movable rod (17) has a square through hole (44). The push frame (9) includes an electric push rod (45) installed on one side of the square through hole (44). A movable plate (46) is installed at the telescopic end of the electric push rod (45). Push rods (47) are installed on both sides of the movable plate (46). The push rods (47) can contact the steel bar connecting sleeve.

10. An auxiliary detection device for rebar connection sleeves according to claim 1, characterized in that, The workbench (1) is also equipped with an interceptor (48), which includes an interceptor block (49) located on one side below the feed channel (2). The lower end of the interceptor block (49) is installed on the workbench (1). The upper end of the interceptor block (49) has a square groove (50). An interceptor plate (51) is provided in the square groove (50). The lower end of the interceptor plate (51) is connected to the lower surface of the square groove (50) through multiple telescopic springs (52). A lifting block (53) is installed on one side of the upper end of the interceptor plate (51). The lifting block (53) is located below the limiting sleeve (4).

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