Intelligent digital lifting capacity limiter and detection device

Abstract

The invention discloses an intelligent digital lifting capacity limiter and a detection device, and belongs to the related field of detection equipment, the intelligent digital lifting capacity limiter comprises a limiting tool and a lifting frame, the lifting frame is movably mounted above the limiting tool, the limiting tool and the lifting frame are movably connected through four lifting guide columns, the lifting guide columns penetrate through the inner side of the lifting frame, and the lifting guide columns are movably connected with the limiting tool. A mesh plate is mounted in the middle of the upper end of the limiting tool in a spliced mode, a plurality of sets of positioning pieces are mounted on the inner side of the mesh plate in a spliced mode, the multiple sets of positioning pieces are distributed in an array mode, and a movable sliding block is movably mounted at one end of the lifting frame; the lifting capacity limiter detection tool can detect the sizes of a sealing cover plate and an outer shell of a lifting capacity limiter, the butt joint position of a binding post, the butt joint position of a fixing climber and the power-on performance of a sensor, has a self-adaptive adjustable tool structure, can meet the detection operation of lifting capacity limiters of different specifications, and has a combined fixing structure, so that the detection efficiency is improved. And adaptive adjustment can be performed according to the appearance of the weight limiter.

Description

Technical Field

[0001] The present invention belongs to the field of detection equipment, and more specifically relates to an intelligent digital lifting capacity limiter and a detection device. Background Art

[0002] The intelligent digital lifting weight limiter is a high-precision safety monitoring device used for lifting machinery (such as tower cranes, truck cranes, crawler cranes, etc.). It monitors the load weight in real time through digital technology and intelligent algorithms to prevent overloading accidents. The detection device is used to perform structural inspection on the processed lifting weight limiter.

[0003] The patent document with announcement number CN105737711B records a size detection device, including: a fixed bracket, a placement groove is provided on the fixed bracket, and a through hole is provided on the bottom wall of the placement groove, wherein one end of the component to be detected is in contact with the side wall of the placement groove; a push block, slidably installed in the through hole, and a first detection platform and a second detection platform in a stepped shape are provided on the end of the push block close to the placement groove, wherein, during the sliding process of the push block in the through hole toward the placement groove, if the first detection platform does not interfere with the other end of the component to be detected, and the second detection platform interferes with the other end of the component to be detected, the size of the component to be detected is qualified, otherwise the size of the component to be detected is unqualified. Through this technical solution, there is no need to fix the component to be detected, and the component to be detected only needs to be placed in the placement groove of the fixed bracket for detection, thereby effectively improving the convenience and efficiency of detection.

[0004] There are certain deficiencies when the detection device performs specification detection operations on the intelligent digital lifting limiter. Different models of lifting limiters have different specifications. When applying the detection operations on lifting limiters of different specifications, it is necessary to replace the tooling structure of the corresponding specifications. The same tooling cannot be used for any model of lifting limiter; secondly, when performing detection operations on lifting limiters of different models, the adjustment accuracy of the adjustable tooling structure is low. The size detection of the lifting limiter requires that the positioning structure and the shell are precisely matched. The position deviation of the positioning structure will directly affect its detection accuracy; at the same time, the traditional detection device can only complete a single type of detection operation, and cannot simultaneously complete multiple detection operations of the shell size, installation structure and interface position, and has a single functionality. Summary of the Invention

[0005] The purpose of the present invention is to provide an intelligent digital lifting capacity limiter and detection device to solve the existing problems.

[0006] The problems solved by the present invention are:

[0007] 1. Different types of lifting weight limiters have different specifications. When applying the inspection operation of lifting weight limiters of different specifications, it is necessary to replace the tooling structure of the corresponding specifications. The same tooling cannot be used for any type of lifting weight limiter. Secondly, when performing the inspection operation of different types of lifting weight limiters, the adjustment accuracy of the adjustable tooling structure is low. The size inspection of the lifting weight limiter requires that the positioning structure and the shell are accurately matched. The position deviation of the positioning structure will directly affect its inspection accuracy. At the same time, the traditional inspection device can only complete a single type of inspection operation, and cannot complete multiple inspection operations of the shell size, installation structure and interface position at the same time, and has a single functionality.

[0008] The purpose of the present invention can be achieved through the following technical solutions:

[0009] An intelligent digital lifting capacity limiter and detection device includes a sealing cover and an outer shell. The sealing cover is fixedly mounted on the upper outer surface of the outer shell. Two sets of fixed foot buckles are fixedly mounted on both sides of the outer shell. A terminal is fixedly mounted on the outer surface of one end of the outer shell. A sensor is installed inside the outer shell. The terminal and the sensor are electrically connected.

[0010] A detection device for an intelligent digital lifting weight limiter includes a limit fixture and a lifting frame. The lifting frame is movably installed above the limit fixture, and the limit fixture and the lifting frame are movably connected by four lifting guide columns. The lifting guide columns pass through the inner side of the lifting frame. A mesh plate is spliced ​​and installed at the middle position of the upper end of the limit fixture. Several groups of positioning parts are spliced ​​and installed on the inner side of the mesh plate. Several groups of positioning parts are distributed in an array. A movable slider is movably installed at one end of the lifting frame. The detection device can be used to detect the size of the sealing cover plate and the outer shell of the lifting weight limiter, the connection between the terminal The docking position, the docking position of the fixed foot buckle and the electrical performance of the sensor are tested. During operation, the outer shell of the standard lifting weight limiter is placed on the upper end of the limit tooling, and the lifting weight limiter is pressed to make the limit push rods of some positioning parts move downward, and the limit push rods of the remaining positioning parts form a surround around the outer shell. At the same time, four groups of limit push rods pass through the circular notch in the middle of the fixed foot buckle according to the position of the fixed foot buckle to complete the positioning test of the fixed foot buckle. Then, the installation position of the electrical connector is adjusted according to the position of the terminal to complete the detection and rubbing operation of the standard lifting weight limiter.

[0011] As a further technical solution of the present invention, the outer surface of the mesh plate is provided with several groups of circular notches, and the lower surface of the mesh plate is provided with several groups of threaded grooves. The outer surfaces of the four lifting guide columns are all installed with limiting rings. The top of the lifting guide column is fixedly installed with a metal head, and the upper surface of the lifting frame is provided with a magnetic ring. When the lifting frame moves upward, the metal head is fixed by the magnetic ring to complete the fixing operation of the lifting frame. By using the setting of the limiting ring, the lowering height of the lifting frame can be limited according to the docking height of the terminal. Several groups of positioning parts can be installed at the bottom of the mesh plate using a threaded fixing structure. According to the shape of the outer shell of the lifting weight limiter, a mesh plate with a corresponding number of mesh holes is selected to be installed, and then the positioning parts are installed at the bottom of the mesh plate, so as to be flexibly applicable to different types of lifting weight limiters.

[0012] As a further technical solution of the present invention, the positioning piece includes an elastic push rod and an elastic sleeve. The elastic push rod is movably installed in the middle position of the inner side of the elastic sleeve. The elastic push rod and the elastic sleeve are elastically connected. A spring is sleeved inside the elastic sleeve. A limiting push rod is fixedly installed on the upper end of the elastic push rod. The user applies pressure to the outer shell to move the elastic push rod of the positioning piece downward. When reused, the elastic sleeve is used to elastically reset the elastic push rod, so that the limiting push rods of several groups of elastic push rods are maintained at the same height.

[0013] As a further technical solution of the present invention, the end of the limit push rod is an arc-shaped structure, and the lower end of the limit push rod and the elastic push rod are fixed by a threaded joint. The outer surface of the elastic push rod is provided with several groups of annular grooves. The limit push rod assembly can be installed on the upper end of the elastic push rod using the threaded joint. The limit push rod of the corresponding structure can be selected and installed according to the shape of the lifting weight limiter. The limit push rod with an arc structure can be suitable for limiting and fixing the outer shell, and the setting of the annular groove can lock and fix the elastic push rod after it moves downward.

[0014] As a further technical solution of the present invention, the limiting push rod is a needle-shaped columnar structure or a truncated cone structure as a whole, and the outer surface of one end of the elastic sleeve is a threaded structure. By utilizing the threaded structure on the surface of the elastic sleeve, the elastic sleeve can be rotated to tighten and fix it on the outer surface of the lower end of the mesh plate. The setting of the annular groove can maintain a good docking effect after the elastic sleeve is rotated and fixed. Secondly, limiting push rods of different shapes can be applied to different detection results. When dealing with the detection operation of the fixed foot buckle, a limiting push rod with a truncated cone structure can be selected so that one end of the limiting push rod can easily pass through the circular notch of the fixed foot buckle. When performing the detection operation of the outer shell of a complex structure, the limiting push rod with a needle-shaped columnar structure can improve its detection accuracy.

[0015] As a further technical solution of the present invention, the internal movability of the limiting tooling is equipped with an upper clamping plate and a lower clamping plate used in conjunction with the elastic push rod. The upper clamping plate is movably installed on the outer surface of the upper end of the lower clamping plate, and the upper clamping plate and the lower clamping plate are both provided with several groups of strip grooves. Arc-shaped clamping strips are installed in the strip grooves of the upper clamping plate and the lower clamping plate. The arc-shaped clamping strips of the upper clamping plate and the arc-shaped clamping strips of the lower clamping plate are symmetrically arranged. The arrangement of the arc-shaped clamping strips can limit and fix the surface of the annular groove. The elastic push rod passes through the strip grooves of the upper clamping plate and the lower clamping plate. The upper clamping plate and the lower clamping plate move toward each other so that the arc-shaped clamping strip is stuck on the surface of the annular groove, thereby completing the limiting and fixing of the elastic push rod.

[0016] As a further technical solution of the present invention, a first screw rod is movably installed on one side of the limiting tooling, and the sides of the upper card plate and the lower card plate are provided with limiting slide buckles for cooperating with the first screw rod. Both ends of the upper card plate and the lower card plate are movably connected to the limiting slide frame. The setting of the limiting slide frame plays a sliding limiting role on the two ends of the upper card plate and the lower card plate. When the first screw rod rotates, the limiting slide buckle can be used to drive the upper card plate and the lower card plate to move toward each other.

[0017] As a further technical solution of the present invention, a second screw rod is movably installed on one side of the lifting frame for use with the moving slider. The moving slider and the lifting frame are movably connected by a limiting slide. An electrical connector is installed in the middle of one end of the limiting slide. An electric push rod is arranged between the limiting slide and the electrical connector. The second screw rod is used to drive the moving slider to adjust the docking position of the electrical connector laterally. The position of the electrical connector is adjusted up and down by using the lifting frame. When the electrical connector moves to the front of the terminal, the electric push rod is used to drive the electrical connector forward so that the electrical connector is inserted into the terminal, thereby completing the power connection test of the lifting weight limiter and testing the installation position of the terminal at the same time.

[0018] As a further technical solution of the present invention, the lower surface of the elastic push rod is movably installed with a lifting ring through a threaded structure, and the side of the lifting ring is provided with an annular groove. The upper surface of the elastic push rod is fixedly installed with a retaining ring, and the interior of the limiting tooling is movably installed with an upper clamping plate used in conjunction with the lifting ring. The outer surface of the upper clamping plate is provided with several groups of limiting grooves, and the limiting grooves are composed of two parts, a rectangle and a semicircle. By using the setting of the lifting ring, the position of the annular groove can be adjusted arbitrarily, so that the elastic push rod can be precisely adjusted according to the shell structure of the lifting weight limiter. The setting of the limiting groove can complete the fixing operation of several groups of elastic push rods through a single upper clamping plate.

[0019] Beneficial effects of the present invention:

[0020] 1. By setting the limit fixture and positioning parts, when the detection device performs the detection operation on the lifting weight limiter, it has an adaptive and adjustable fixture structure, which can meet the detection operation of lifting weight limiters of different specifications, and has a combined fixed structure, which can be adaptively adjusted according to the shape of the weight limiter;

[0021] During operation, place the outer shell of the standard lifting weight limiter on the upper end of the limit fixture, press the lifting weight limiter, so that the limit push rods of some positioning parts move downward, and the limit push rods of the remaining positioning parts form a surround around the outer shell. At the same time, four groups of limit push rods pass through the circular notch in the middle of the fixed foot buckle according to the position of the fixed foot buckle to complete the positioning detection of the fixed foot buckle. Then, adjust the installation position of the electrical connector according to the position of the terminal to complete the detection and rubbing operation of the standard lifting weight limiter.

[0022] The positioning member is composed of a limiting push rod and an elastic push rod. The limiting push rod plays a positioning role, while the elastic push rod has an elastic reset function. The user applies pressure to the outer shell to move the elastic push rod of the positioning member downward. When it is reused, the elastic sleeve elastically resets the elastic push rod so that the limiting push rods of several groups of elastic push rods are kept at the same height.

[0023] Secondly, according to the shape of the outer shell of the lifting weight limiter, choose to install a mesh plate with the corresponding number of mesh holes, and then install the positioning piece at the bottom of the mesh plate. When installing the positioning piece, by rotating the positioning piece, using the threaded structure on the surface of the elastic sleeve and matching the threaded groove at the bottom of the mesh plate, the positioning piece is installed and fixed. According to the size of the lifting weight limiter, the corresponding number and position of positioning pieces can be installed, so that different types of lifting weight limiters can be flexibly applied.

[0024] At the same time, the limit push rod assembly can be installed on the upper end of the elastic push rod by using the threaded joint. The limit push rod of the corresponding structure can be selected according to the shape of the lifting weight limiter. The limit push rod with an arc structure can be suitable for the limit fixation of the outer shell, and the setting of the annular groove can maintain a good docking effect after the elastic sleeve is rotated and fixed. Secondly, limit push rods of different shapes can be applied to different detection results. When dealing with the detection operation of the fixed foot buckle, the limit push rod with a truncated cone structure can be selected, so that one end of the limit push rod can easily pass through the circular notch of the fixed foot buckle. When performing the detection operation of the outer shell with a complex structure, the limit push rod with a needle-shaped columnar structure can improve its detection accuracy by increasing the number of limit push rods.

[0025] Finally, the upper and lower clamping plates are moved toward each other so that the arc-shaped clamping strip is stuck on the surface of the annular clamping groove, completing the limiting fixation of the elastic push rod. When the positioning part completes the rubbing operation of the standard part, the detection operation of this model of lifting weight limiter can be repeated.

[0026] 2. By setting a lifting ring, when the detection device performs detection operation on the lifting weight limiter, the detection accuracy of its adaptive tooling structure is improved and its use effect is optimized;

[0027] When in use, the annular groove at the lower end of the elastic push rod is replaced by the lifting ring. When the elastic push rod is fixed, the annular groove cooperates with the upper and lower clamping plates to complete the fixing operation of the elastic push rod. However, the height control of the elastic push rod cannot be arbitrarily adjusted because the height of the annular groove limits the adjustment accuracy of the elastic push rod, so that the elastic push rod can only be adjusted in units of the height of the annular groove. By arranging the annular groove on the lifting ring and then using the threaded structure of the elastic push rod to arbitrarily adjust the position of the lifting ring, the annular groove on the lifting ring is realized to achieve its arbitrarily fixed state, thereby improving the adjustment accuracy of the elastic push rod. The limiting groove of the upper clamping plate consists of a rectangular and a semicircular part. When the elastic push rod moves up and down, the elastic push rod is located in the rectangular slot structure. When the elastic push rod is fixed, the upper clamping plate is translated so that the annular groove on the lifting ring is stuck in the semicircular slot of the upper clamping plate, thereby using a single clamping plate structure to complete the limited fixation of the elastic push rod.

[0028] 3. By setting up electrical connectors and limit rings, when the detection device is used to detect the load limiter, it can be used in conjunction with the use of limit fixtures and positioning parts to enable multiple detection operations of the shell size, installation structure and interface position;

[0029] During operation, when the lifting frame moves up, the metal head is fixed by the magnetic ring, so that the fixing operation of the lifting frame can be completed. The setting of the limit ring can limit the lowering height of the lifting frame according to the docking height of the terminal. The second screw rod is used to drive the moving slider to adjust the docking position of the electrical connector laterally. The position of the electrical connector is adjusted up and down by using the lifting frame. When the electrical connector moves to the front of the terminal, the electric push rod is used to drive the electrical connector forward so that the electrical connector is inserted into the terminal, completing the power connection test of the lifting weight limiter and testing the installation position of the terminal at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be further described below with reference to the accompanying drawings.

[0031] Figure 1 This is a schematic diagram of the overall structure of an intelligent digital lifting capacity limiter of the present invention;

[0032] Figure 2 This is an overall structural diagram of a detection device for an intelligent digital lifting capacity limiter of the present invention;

[0033] Figure 3This is a diagram showing the internal structure of a position limiting tool in a detection device for an intelligent digital lifting capacity limiter according to the present invention;

[0034] Figure 4 This is an overall structural diagram of a positioning member in a detection device for an intelligent digital lifting capacity limiter of the present invention;

[0035] Figure 5 This is an overall structural diagram of the electrical connector in a detection device for an intelligent digital lifting capacity limiter of the present invention;

[0036] Figure 6 This is an overall structural diagram of the upper and lower clamping plates in a detection device for an intelligent digital lifting capacity limiter of the present invention;

[0037] Figure 7 This is a planar structural diagram of a lifting frame in a detection device for an intelligent digital lifting capacity limiter of the present invention;

[0038] Figure 8 This is a structural diagram of various forms of a limit push rod in a detection device for an intelligent digital lifting capacity limiter of the present invention;

[0039] Figure 9 This is an overall structural diagram of an elastic push rod in a detection device for an intelligent digital lifting capacity limiter of the present invention;

[0040] Figure 10 This is a planar structural diagram of an upper clamping plate in a detection device for an intelligent digital lifting capacity limiter of the present invention;

[0041] Figure 11 The present invention is a state change diagram of a detection device for an intelligent digital lifting weight limiter when in use.

[0042] In the figure: 1. Sealing cover; 2. Outer shell; 3. Fixed foot buckle; 4. Terminal; 5. Limiting tool; 6. First screw rod; 7. Mesh plate; 8. Lifting frame; 9. Second screw rod; 10. Moving slider; 11. Lifting guide column; 12. Positioning piece; 13. Limiting slide frame; 14. Upper clamping plate; 15. Lower clamping plate; 16. Elastic sleeve; 17. Limiting ejector rod; 18. Annular slot; 19. Elastic ejector rod; 20. Electrical connector; 21. Electric push rod; 22. Limiting slide buckle; 23. Arc-shaped clamping strip; 24. Magnetic ring; 25. Limiting ring; 26. Metal head; 27. Threaded joint; 28. Push handle; 29. ​​Retaining ring; 30. Lifting ring; 31. Limiting slot. DETAILED DESCRIPTION

[0043] The following will be combined with the embodiments to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0044] like Figure 1 As shown, an intelligent digital lifting weight limiter and detection device includes a sealing cover plate 1 and an outer shell 2. The sealing cover plate 1 is fixedly mounted on the upper outer surface of the outer shell 2. Two sets of fixed foot buckles 3 are fixedly mounted on both sides of the outer shell 2. A terminal 4 is fixedly mounted on the outer surface of one end of the outer shell 2. A sensor is installed inside the outer shell 2. The sensor is mounted on a circuit board, and the sensor model is SITRANS WS300. The weight of the lifting object can be determined by the sensor. The terminal 4 and the sensor are electrically connected.

[0045] like Figure 2 -like Figure 11 The detection device for an intelligent digital lifting weight limiter shown in the figure includes a limit tooling 5 and a lifting frame 8. The lifting frame 8 is movably installed above the limit tooling 5, and the limit tooling 5 and the lifting frame 8 are movably connected by four lifting guide columns 11. The lifting guide columns 11 pass through the inner side of the lifting frame 8. The mesh plate 7 is spliced ​​and installed at the middle position of the upper end of the limit tooling 5. Several groups of positioning members 12 are spliced ​​and installed on the inner side of the mesh plate 7. The several groups of positioning members 12 are distributed in an array. A movable slider 10 is movably installed at one end of the lifting frame 8. The detection device can be used to check the size of the sealing cover plate 1 and the outer shell 2 of the lifting weight limiter and the docking of the terminal 4 During operation, the outer shell 2 of the standard weight limiter is placed on the upper end of the limiting tooling 5, and the weight limiter is pressed to make the limiting push rods 17 of some positioning parts 12 move downward, and the limiting push rods 17 of the remaining positioning parts 12 are surrounded by the outer shell 2. At the same time, four groups of limiting push rods 17 pass through the circular notch in the middle of the fixed foot buckle 3 according to the position of the fixed foot buckle 3 to complete the positioning detection of the fixed foot buckle 3, and adjust the installation position of the electrical connector 20 according to the position of the terminal 4 to complete the detection and rubbing operation of the standard weight limiter.

[0046] The outer surface of the mesh plate 7 is provided with several groups of circular notches, and the lower surface of the mesh plate 7 is provided with several groups of threaded grooves. The outer surfaces of the four lifting guide columns 11 are all installed with limit rings 25. The top of the lifting guide column 11 is fixedly installed with a metal head 26. The upper surface of the lifting frame 8 is provided with a magnetic ring 24. When the lifting frame 8 moves up, the metal head 26 is adsorbed and fixed by the magnetic ring 24, so as to complete the fixing operation of the lifting frame 8. By using the setting of the limit ring 25, the lowering height of the lifting frame 8 can be limited according to the docking height of the terminal 4. Several groups of positioning parts 12 can be installed at the bottom of the mesh plate 7 using a threaded fixing structure. According to the shape of the outer shell 2 of the lifting weight limiter, the mesh plate 7 with the corresponding number of mesh holes is selected to be installed, and then the positioning part 12 is installed at the bottom of the mesh plate 7, so as to be flexibly applicable to different types of lifting weight limiters.

[0047] To solve the problem of adaptive adjustment of detection device, such as Figure 3 As shown, the positioning member 12 includes an elastic push rod 19 and an elastic sleeve 16. The elastic push rod 19 is movably installed in the middle position of the inner side of the elastic sleeve 16. The elastic push rod 19 and the elastic sleeve 16 are elastically connected. A spring is sleeved inside the elastic sleeve 16. The upper end of the elastic push rod 19 is fixedly installed with a limit push rod 17. The user applies pressure to the outer shell 2 to move the elastic push rod 19 of the positioning member 12 downward. When reused, the elastic sleeve 16 is used to elastically reset the elastic push rod 19 so that the limit push rods 17 of several groups of elastic push rods 19 are maintained at the same height.

[0048] like Figure 4 As shown, the end of the limiting push rod 17 is an arc-shaped structure, and the lower end of the limiting push rod 17 and the elastic push rod 19 are fixed to each other by a threaded joint 27. The outer surface of the elastic push rod 19 is provided with several groups of annular grooves 18. The limiting push rod 17 can be assembled and installed on the upper end of the elastic push rod 19 by using the threaded joint 27. The limiting push rod 17 with a corresponding structure can be selected and installed according to the shape of the lifting weight limiter. The limiting push rod 17 with an arc-shaped structure can be suitable for limiting and fixing the outer shell 2, and the setting of the annular groove 18 can lock and fix the elastic push rod 19 after it moves downward.

[0049] like Figure 7As shown, the limiting push rod 17 is a needle-shaped columnar structure or a truncated cone structure as a whole, and the outer surface of one end of the elastic sleeve 16 is a threaded structure. By utilizing the threaded structure on the surface of the elastic sleeve 16, the elastic sleeve 16 can be rotated to tighten and fix the elastic sleeve 16 on the outer surface of the lower end of the mesh plate 7. The setting of the annular groove 18 can maintain a good docking effect after the elastic sleeve 16 is rotated and fixed. Secondly, limiting push rods 17 of different shapes can be applied to different detection results. When dealing with the detection operation of the fixed foot buckle 3, the limiting push rod 17 with a truncated cone structure can be selected so that one end of the limiting push rod 17 can easily pass through the circular notch of the fixed foot buckle 3. When performing the detection operation of the complex structure outer shell 2, the limiting push rod 17 with a needle-shaped columnar structure can improve its detection accuracy.

[0050] like Figure 6 As shown, the interior of the limiting tooling 5 is movably installed with an upper clamping plate 14 and a lower clamping plate 15 used in conjunction with the elastic push rod 19. The upper clamping plate 14 is movably installed on the outer surface of the upper end of the lower clamping plate 15, and the upper clamping plate 14 and the lower clamping plate 15 are both provided with several groups of strip grooves. Arc-shaped clamping strips 23 are installed in the strip grooves of the upper clamping plate 14 and the lower clamping plate 15. The arc-shaped clamping strips 23 of the upper clamping plate 14 and the arc-shaped clamping strips 23 of the lower clamping plate 15 are symmetrically arranged. The arrangement of the arc-shaped clamping strips 23 can limit and fix the surface of the annular groove 18. The elastic push rod 19 passes through the strip grooves of the upper clamping plate 14 and the lower clamping plate 15. The upper clamping plate 14 and the lower clamping plate 15 move toward each other, so that the arc-shaped clamping strips 23 are stuck on the surface of the annular groove 18, thereby completing the limiting fixation of the elastic push rod 19.

[0051] A first screw rod 6 is movably installed on one side of the limiting tooling 5, and the sides of the upper card plate 14 and the lower card plate 15 are provided with a limiting slide buckle 22 used in conjunction with the first screw rod 6. Both ends of the upper card plate 14 and the lower card plate 15 are movably connected to the limiting slide frame 13. The setting of the limiting slide frame 13 plays a sliding limiting role on the two ends of the upper card plate 14 and the lower card plate 15. When the first screw rod 6 rotates, the limiting slide buckle 22 can be used to drive the upper card plate 14 and the lower card plate 15 to move toward each other.

[0052] A second screw rod 9 is movably installed on one side of the lifting frame 8 for use with the moving slider 10. The moving slider 10 and the lifting frame 8 are movably connected by a limiting slider 22. An electrical connector 20 is installed in the middle of one end of the limiting slider 22. An electric push rod 21 is provided between the limiting slider 22 and the electrical connector 20. The second screw rod 9 is used to drive the moving slider 10 to adjust the docking position of the electrical connector 20 laterally. The position of the electrical connector 20 is adjusted up and down by using the lifting frame 8. When the electrical connector 20 moves to the front of the terminal 4, the electric push rod 21 drives the electrical connector 20 forward so that the electrical connector 20 is inserted into the terminal 4, completing the power connection test of the lifting weight limiter and testing the installation position of the terminal 4 at the same time.

[0053] A lifting ring 30 is movably installed on the lower surface of the elastic push rod 19 through a threaded structure, and an annular groove 18 is provided on the side of the lifting ring 30. A retaining ring 29 is fixedly installed on the upper surface of the elastic push rod 19. The interior of the limiting tooling 5 is movably installed with an upper clamping plate 14 used in conjunction with the lifting ring 30. The outer surface of the upper clamping plate 14 is provided with several groups of limiting grooves 31. The limiting grooves 31 are composed of two parts, a rectangle and a semicircle. By using the setting of the lifting ring 30, the position of the annular groove 18 can be adjusted arbitrarily, so that the elastic push rod 19 can be precisely adjusted according to the shell structure of the lifting weight limiter. The setting of the limiting grooves 31 can complete the fixing operation of several groups of elastic push rods 19 through a single upper clamping plate 14.

[0054] Different types of weight limiters have different specifications. When performing inspection operations on weight limiters of different specifications, it is necessary to replace the tooling structure of the corresponding specifications. The same tooling cannot be used for any type of weight limiter. Secondly, when performing inspection operations on weight limiters of different models, the adjustment accuracy of the adjustable tooling structure is low. The size inspection of the weight limiter requires that the positioning structure and the shell are precisely matched. The position deviation of the positioning structure will directly affect its inspection accuracy. At the same time, the traditional inspection device can only complete a single type of inspection operation and cannot simultaneously complete multiple inspection operations of the shell size, installation structure and interface position, and its functionality is single.

[0055] In embodiment 1, when in use, by setting the limit fixture 5 and the positioning member 12, when the detection device performs a detection operation on the lifting weight limiter, it has an adaptive and adjustable fixture structure, which can meet the detection operation of lifting weight limiters of different specifications, and has a combined fixed structure, which can be adaptively adjusted according to the shape of the weight limiter;

[0056] During operation, the outer shell 2 of the standard lifting weight limiter is placed on the upper end of the limiting tooling 5, and the lifting weight limiter is pressed, so that the limiting push rods 17 of some positioning parts 12 move downward, and the limiting push rods 17 of the remaining positioning parts 12 form a surround around the outer shell 2. At the same time, the four groups of limiting push rods 17 pass through the circular notch in the middle of the fixed foot buckle 3 according to the position of the fixed foot buckle 3, completing the positioning detection of the fixed foot buckle 3, and then adjust the installation position of the electrical connector 20 according to the position of the terminal 4 to complete the detection and rubbing operation of the standard lifting weight limiter;

[0057] The positioning member 12 is composed of a limiting push rod 17 and an elastic push rod 19. The limiting push rod 17 plays a positioning role, while the elastic push rod 19 has an elastic reset function. The user applies pressure to the outer shell 2 to move the elastic push rod 19 of the positioning member 12 downward. When it is reused, the elastic sleeve 16 elastically resets the elastic push rod 19 so that the limiting push rods 17 of several groups of elastic push rods 19 are maintained at the same height.

[0058] Secondly, according to the shape of the outer shell 2 of the lifting weight limiter, a mesh plate 7 with a corresponding number of mesh holes is selected for installation, and then a positioning piece 12 is installed at the bottom of the mesh plate 7. When the positioning piece 12 is installed, the positioning piece 12 is rotated and the threaded structure on the surface of the elastic sleeve 16 is used to cooperate with the threaded groove at the bottom of the mesh plate 7 to complete the installation and fixation of the positioning piece 12. According to the size of the lifting weight limiter, the corresponding number and position of the positioning piece 12 can be installed, thereby flexibly applying different types of lifting weight limiters;

[0059] At the same time, the threaded joint 27 can be used to install the limiting push rod 17 in combination on the upper end of the elastic push rod 19. The limiting push rod 17 of the corresponding structure can be selected according to the shape of the lifting weight limiter. The limiting push rod 17 of the arc structure can be suitable for the limiting fixation of the outer shell 2, and the setting of the annular groove 18 can maintain a good docking effect after the elastic sleeve 16 is rotated and fixed. Secondly, limiting push rods 17 of different shapes can be applied to different detection results. When responding to the detection operation of the fixed foot buckle 3, the limiting push rod 17 of the truncated cone structure can be selected, so that one end of the limiting push rod 17 can easily pass through the circular notch of the fixed foot buckle 3. When performing the detection operation of the outer shell 2 with a complex structure, the limiting push rod 17 of the needle-shaped columnar structure can improve its detection accuracy by increasing the number of limiting push rods 17;

[0060] Finally, the upper clamping plate 14 and the lower clamping plate 15 are moved toward each other, so that the arc-shaped clamping strip 23 is clamped on the surface of the annular clamping groove 18, thereby completing the limit fixation of the elastic push rod 19. When the positioning member 12 completes the rubbing operation of the standard part, the detection operation of the load limiter of this model can be repeated;

[0061] In the second embodiment, by providing a lifting ring 30, when the detection device performs a detection operation on the lifting weight limiter, the detection accuracy of the adaptive tooling structure is improved, and its use effect is optimized;

[0062] When in use, the annular groove 18 at the lower end of the elastic push rod 19 is replaced by the lifting ring 30. When the elastic push rod 19 is fixed, the annular groove 18 cooperates with the upper clamping plate 14 and the lower clamping plate 15 to complete the fixing operation of the elastic push rod 19. However, the height of the elastic push rod 19 cannot be adjusted arbitrarily because the height of the annular groove 18 limits the adjustment accuracy of the elastic push rod 19, so that the elastic push rod 19 can only be adjusted in units of the height of the annular groove 18. By setting the annular groove 18 on the lifting ring 30 and then using the threaded structure of the elastic push rod 19 The position of the lifting ring 30 can be adjusted arbitrarily, so that the annular groove 18 on the lifting ring 30 can be used to fix it arbitrarily, thereby improving the adjustment accuracy of the elastic ejector 19. The limiting groove 31 of the upper clamping plate 14 is composed of a rectangular and a semicircular part. When the elastic ejector 19 moves up and down, the elastic ejector 19 is located in the rectangular notch structure. When the elastic ejector 19 is fixed, the upper clamping plate 14 is translated to make the annular groove 18 on the lifting ring 30 stuck in the semicircular notch of the upper clamping plate 14, so that the elastic ejector 19 can be limited and fixed by using a single clamping plate structure.

[0063] By providing the electrical connector 20 and the limiting ring 25, when the detection device is performing a detection operation on the lifting weight limiter, in conjunction with the use of the limiting tool 5 and the positioning member 12, it is possible to perform multiple detection operations on the shell size, the installation structure and the interface position;

[0064] During operation, when the lifting frame 8 moves upward, the metal head 26 is fixed by the magnetic ring 24, so that the fixing operation of the lifting frame 8 can be completed. The setting of the limit ring 25 can limit the lowering height of the lifting frame 8 according to the docking height of the terminal 4. The second screw rod 9 is used to drive the moving slider 10 to adjust the docking position of the electrical connector 20 laterally. When the position of the electrical connector 20 is adjusted up and down by using the lifting frame 8, when the electrical connector 20 moves to the front of the terminal 4, the electrical connector 20 is driven forward by the electric push rod 21, so that the electrical connector 20 is inserted into the terminal 4, completing the power connection test of the lifting weight limiter and testing the installation position of the terminal 4 at the same time.

[0065] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, make some changes or modifications to equivalent embodiments using the technical contents disclosed above. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An intelligent digital lifting capacity limiter, characterized in that: The invention comprises a sealing cover plate (1) and an outer shell (2), wherein the sealing cover plate (1) is fixedly mounted on the outer surface of the upper end of the outer shell (2), two sets of fixing foot buckles (3) are fixedly mounted on both sides of the outer shell (2), a terminal (4) is fixedly mounted on the outer surface of one end of the outer shell (2), a sensor is mounted inside the outer shell (2), and the terminal (4) and the sensor are electrically connected.

2. A detection device for an intelligent digital lifting weight limiter, applied to the intelligent digital lifting weight limiter according to claim 1, characterized in that: The utility model comprises a limiting tool (5) and a lifting frame (8), wherein the lifting frame (8) is movably installed above the limiting tool (5), and the limiting tool (5) and the lifting frame (8) are movably connected via four lifting guide columns (11), wherein the lifting guide columns (11) pass through the inner side of the lifting frame (8), a mesh plate (7) is spliced ​​and installed at the middle position of the upper end of the limiting tool (5), and a plurality of groups of positioning members (12) are spliced ​​and installed on the inner side of the mesh plate (7), and the plurality of groups of positioning members (12) are distributed in an array, and a movable slider (10) is movably installed at one end of the lifting frame (8).

3. The intelligent digital lifting capacity limiter detection device according to claim 2, characterized in that: The outer surface of the mesh plate (7) is provided with a plurality of groups of circular notches, and the lower surface of the mesh plate (7) is provided with a plurality of groups of threaded grooves. The outer surfaces of the four lifting guide columns (11) are all installed with limit rings (25). The top ends of the lifting guide columns (11) are fixedly installed with metal heads (26). The upper surface of the lifting frame (8) is provided with a magnetic ring (24).

4. The intelligent digital lifting capacity limiter detection device according to claim 2, characterized in that: The positioning member (12) comprises an elastic push rod (19) and an elastic sleeve (16). The elastic push rod (19) is movably mounted at the middle position of the inner side of the elastic sleeve (16). The elastic push rod (19) and the elastic sleeve (16) are elastically connected. A spring is sleeved inside the elastic sleeve (16). A limiting push rod (17) is fixedly mounted on the upper end of the elastic push rod (19).

5. The intelligent digital lifting capacity limiter detection device according to claim 4, characterized in that: The end of the limiting push rod (17) is an arc-shaped structure. The lower end of the limiting push rod (17) and the elastic push rod (19) are fixed by a threaded joint (27). The outer surface of the elastic push rod (19) is provided with a plurality of groups of annular grooves (18).

6. The intelligent digital lifting capacity limiter detection device according to claim 4, characterized in that: The limiting push rod (17) is in the form of a needle-shaped column or a truncated cone, and the outer surface of one end of the elastic sleeve (16) is in the form of a threaded structure.

7. The intelligent digital lifting capacity limiter detection device according to claim 4, characterized in that: An upper card plate (14) and a lower card plate (15) used in conjunction with an elastic push rod (19) are movably installed inside the position limiting tool (5); the upper card plate (14) is movably installed on the outer surface of the upper end of the lower card plate (15); and the upper card plate (14) and the lower card plate (15) are both provided with a plurality of groups of strip-shaped notches; arc-shaped card strips (23) are installed in the strip-shaped notches of the upper card plate (14) and the lower card plate (15); and the arc-shaped card strips (23) of the upper card plate (14) and the arc-shaped card strips (23) of the lower card plate (15) are symmetrically arranged.

8. The intelligent digital lifting capacity limiter detection device according to claim 7, characterized in that: A first screw rod (6) is movably mounted on one side of the position limiting fixture (5); side edges of the upper card plate (14) and the lower card plate (15) are both provided with position limiting sliding buckles (22) used in conjunction with the first screw rod (6); and both ends of the upper card plate (14) and the lower card plate (15) are movably sleeved on the position limiting sliding frame (13).

9. The intelligent digital lifting capacity limiter detection device according to claim 2, characterized in that: A second screw rod (9) for use with a moving slider (10) is movably installed on one side of the lifting frame (8); the moving slider (10) and the lifting frame (8) are movably connected via a limiting slider (22); an electrical connector (20) is installed in the middle of one end of the limiting slider (22); and an electric push rod (21) is provided between the limiting slider (22) and the electrical connector (20).

10. The intelligent digital lifting capacity limiter detection device according to claim 4, characterized in that: The lower surface of the elastic push rod (19) is movably mounted with a lifting ring (30) through a threaded structure, and the side of the lifting ring (30) is provided with an annular groove (18). The upper surface of the elastic push rod (19) is fixedly mounted with a retaining ring (29). The interior of the limiting tool (5) is movably mounted with an upper clamping plate (14) used to cooperate with the lifting ring (30), and the outer surface of the upper clamping plate (14) is provided with a plurality of groups of limiting grooves (31), and the limiting grooves (31) are composed of a rectangular part and a semicircular part.

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