CN115575215B - Expansion screw testing machine - Google Patents
Expansion screw testing machine Download PDFInfo
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- CN115575215B CN115575215B CN202211184561.2A CN202211184561A CN115575215B CN 115575215 B CN115575215 B CN 115575215B CN 202211184561 A CN202211184561 A CN 202211184561A CN 115575215 B CN115575215 B CN 115575215B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention relates to the technical field of detection of expansion screws, and discloses an expansion screw testing machine, which comprises a detection box body and a base fixing structure on one side of the detection box body, wherein the base fixing structure comprises a support outer shell, a limit shell, an inner hydraulic cylinder, a support upper base, side fixing frames and a hydraulic inner shaft, the support outer shell is positioned at the upper end of the inner wall of the detection box body, the inner hydraulic cylinder is arranged in the support outer shell, the hydraulic inner shaft is arranged in the inner hydraulic cylinder, the upper end of the hydraulic inner shaft is provided with a support upper base, the outer side annular array of the support upper base is provided with four side fixing frames, and the axis position of the support upper base is provided with a limit bottom groove. When the bolt is pulled by a large weight, the device can always realize fixed clamping operation on the two ends of the bolt, the supporting state of the sleeve can be visually checked through the fixing mode, and the device adopts a tetragonal shrinkage fixing mode.
Description
Technical Field
The invention relates to the technical field of expansion screw detection, in particular to an expansion screw testing machine.
Background
The expansion screw is generally a metal expansion screw, one end of the screw is threaded, and the other end is tapered. An iron sheet (steel tube) is covered on the outer surface, a plurality of notches are arranged on one half of an iron sheet cylinder (steel tube), the iron sheet cylinder (steel tube) is plugged into a hole drilled in a wall, then a nut is locked, the nut pulls a screw outwards, the taper is pulled into the iron sheet cylinder, the iron sheet cylinder is expanded and then is tightly fixed on the wall, the iron sheet cylinder is generally used for fastening guard rails, awning, air conditioners and the like on materials such as cement, bricks and the like, but the fixing is not very reliable, if the load has large vibration, the release can occur, the tension of the iron sheet cylinder (steel tube) needs to be tested, the environment in which the iron sheet cylinder is used is determined according to the tension, and the device is a tension testing device for detecting the expansion screw.
The principle of expansion bolts is that the sleeve on the outer side of the expansion bolts is expanded to form a support for the inner wall of the aperture to finish a fixed state, but when testing, the bolts are generally wrapped in the device, and when testing, the test states of the sleeve and the bolts need to be visually observed, and meanwhile, the fixation operation is performed on the sleeve and the bolts, and the conventional testing device is difficult to achieve the fixed mode.
Disclosure of Invention
The invention provides an expansion screw testing machine, which has the beneficial effect of convenient observation during detection, and solves the problems that the principle of the expansion screw in the prior art is that the sleeve on the outer side is used for expanding to form a support for the inner wall of the aperture so as to finish a fixed state, but when in test, a device generally wraps the screw for detection, and when in test, the test state of the sleeve and the screw needs to be intuitively observed, and meanwhile, the fixing operation is needed, and the conventional testing device is difficult to achieve the fixed mode.
The invention provides the following technical scheme: the utility model provides an inflation screw test machine, includes the base fixed knot who detects box and detects box one side constructs, base fixed knot constructs including supporting shell body, spacing casing, interior pneumatic cylinder, supports base, side mount and hydraulic shaft, it is located the upper end that detects the box inner wall to support shell body, support shell body internally mounted has interior pneumatic cylinder, interior pneumatic cylinder's internally mounted has the hydraulic shaft, the upper end of hydraulic shaft is equipped with the support base, the outside annular array who supports the base has four side mount, the axle center position of support base is equipped with spacing kerve, the bolt is installed to the upper end of spacing kerve, the sleeve pipe is installed in the outside of bolt, the hydraulic cylinder body is installed to base fixed knot constructs's upper end, the internally mounted of hydraulic cylinder body has the loose axle, buffer structure is installed to the lower extreme of loose axle, fixed knot constructs is installed to buffer structure's lower extreme.
As an alternative to the expansion screw tester of the present invention, wherein: the lower extreme of the hydraulic inner shaft is provided with a piston, the piston is used for supporting and positioning the hydraulic inner shaft in an inner hydraulic cylinder, the upper end of a supporting outer shell is provided with a limiting shell, the limiting shell is used for shrinking a side fixing frame, the outer side of the inner hydraulic cylinder is provided with a liquid inlet pipe, and the inner part of the inner hydraulic cylinder is filled with hydraulic oil.
As an alternative to the expansion screw tester of the present invention, wherein: the inner wall of side mount is equipped with the arc laminating groove, the lower extreme of side mount inner wall is equipped with fixed hypotenuse, fixed hypotenuse is used for spacing sheathed tube lower extreme.
As an alternative to the expansion screw tester of the present invention, wherein: the inner wall of arc laminating groove is equipped with the friction awl strip, the friction awl strip is used for increasing the frictional force of side mount and sleeve pipe surface.
As an alternative to the expansion screw tester of the present invention, wherein: the fixed knot constructs including supporting casing, fixed inside groove, installation inside groove, fixture block, internal pushing inclined plane and pivot, the upper surface of supporting casing is used for with buffer structure's lower fixed surface, the inside of supporting casing is equipped with fixed inside groove, the inside of supporting casing still is equipped with the installation inside groove, the internally mounted of installation inside groove has the fixture block, one side of fixture block is equipped with the internal pushing inclined plane, fixture block internally mounted has the pivot, the pivot be used for fixing the fixture block in the installation inside groove.
As an alternative to the expansion screw tester of the present invention, wherein: the upper end of fixture block is equipped with the upper end limiting plate, the lifting ring is still installed to the inside of installation inside groove, the lifting ring outside is equipped with promotes the inclined plane, promote the inclined plane be used for with pass upper end limiting plate upper end position, the bullet tongue is installed to one side of upper end limiting plate, the bullet tongue is used for providing the elasticity effect for upper end limiting plate.
As an alternative to the expansion screw tester of the present invention, wherein: the inside of fixed inside groove has the roof, first spring is installed to the upper end of roof, the outside of roof is equipped with the bracing piece, the bracing piece is used for fixing the outside of roof and the inner wall of lift ring.
As an alternative to the expansion screw tester of the present invention, wherein: the lower extreme on promotion inclined plane is equipped with the location draw-in groove that is located the lift intra-annular, the top of upper end limiting plate is used for the card in the location draw-in groove, the inside of fixture block is equipped with the interior cavity, the backup pad is installed to the inboard of interior cavity, the link plate is installed to the lower extreme of backup pad, elastic rotating shaft is installed to one side of link plate, elastic rotating shaft is used for supporting the link plate and installs the lower extreme at the backup pad perpendicularly.
As an alternative to the expansion screw tester of the present invention, wherein: the buffer structure comprises an energy-absorbing shell, an impact supporting shaft, a second spring and a pressure cavity, wherein the pressure cavity is arranged in the energy-absorbing shell, the impact supporting shaft is arranged in the pressure cavity, the second spring is arranged on the outer side of the energy-absorbing shell and the outer side of the impact supporting shaft, a sealing ring is arranged on the top end of the impact supporting shaft, the second spring is used for providing an elastic effect for the energy-absorbing shell and the impact supporting shaft, and oil is filled in the pressure cavity.
As an alternative to the expansion screw tester of the present invention, wherein: two rows of sealing outer rings are arranged on the outer side of the sealing ring, a laminating seat positioned on the outer side of the sealing ring is arranged between the two sealing outer rings, a buffer sealing piece is arranged on the outer side of the laminating seat, and a gap exists between one end of the sealing outer ring and the inner wall of the pressure cavity.
The invention has the following beneficial effects:
1. this inflation screw testing machine, through the cooperation of base fixed knot constructs inner structure, can realize the quick fixation to the bolt, and the side mount is annular array formula clamping structure, can strengthen its block degree to a wide extent, when making the bolt bear heavy-duty to drag, the device can be to its both ends realization fixed centre gripping operation all the time, through its fixed mode, can audio-visual support state of looking over, and the device adopts the fixed mode of tetragonal shrink, can avoid the bolt to lead to the fact bolt material to splash the situation after exceeding limit state.
2. The greater the pressure of the falling of the hydraulic inner shaft is, the greater the inward tightening force of the side fixing frame is, and the greater the biting force of the bolt and the sleeve is, so that the downward pressure of the hydraulic inner shaft determines the inward tightening force of the side fixing frame, the lifting movement of the hydraulic inner shaft is adjusted into a hydraulic driving mode, the clamping effect of the side fixing frame on the bolt and the sleeve is greatly improved, the clamping operation mode of the side fixing frame is changed while the biting force is increased, the device can be installed without manpower, and the clamping operation of the bolt is more convenient.
3. According to the expansion screw testing machine, through the cooperation of the internal structure of the base fixing structure, the device only needs to place the bolts at the designated positions, manual installation and fixation are not needed, and the hydraulic mode is adopted in the device to provide inward contraction driving force for the side fixing frames, so that the device can support the fixing operation of the bolts to the maximum extent, accurately test the bearing pressure data of the bolts, remarkably improve the installation stability of the device and improve the detection interval of the device, and can detect expansion screws of various types;
through fixed knot constructs inner structure's cooperation operation for the lower extreme of bolt is after accomplishing with base fixed knot constructs fixedly, and the supporting casing only need realize through the loose axle that lifting operation can accomplish locking and the unblock operation to the bolt, makes the installation of bolt when detecting, has increased the fixed convenient degree of device to the bolt by a wide margin, and the device need not operating personnel and carries out fixed mounting, and be adapted to the fixed mounting of multiple bolt, makes the bolt when the installation, a large amount of reduction personnel's interference operation, thereby realized the convenient installation of bolt, and avoid the safety problem that the manual contact caused.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a schematic view of the overall planar structure of the present invention.
Fig. 3 is a schematic view of the partial structures at a in fig. 1 according to the present invention.
Fig. 4 is a schematic view of a fixing structure of the present invention.
Fig. 5 is a schematic diagram of a latch structure according to the present invention.
FIG. 6 is a schematic diagram of a buffer structure according to the present invention.
FIG. 7 is a schematic cross-sectional view of an energy absorbing shell of the present invention.
Fig. 8 is a schematic view of the partial structures of the present invention at B of fig. 6.
In the figure: 1. detecting a box body; 2. a base fixing structure; 21. a support outer case; 22. a limit housing; 23. an inner hydraulic cylinder; 24. supporting an upper base; 25. a side fixing frame; 26. a hydraulic inner shaft; 27. a piston; 28. an arc-shaped fitting groove; 29. friction cone strips; 30. a limiting bottom groove; 3. a bolt; 31. fixing the bevel edge; 32. a liquid inlet pipe; 4. a sleeve; 5. a fixed structure; 51. a support housing; 52. fixing the inner tank; 53. installing an inner groove; 54. a clamping block; 55. an inward pushing inclined plane; 56. a rotating shaft; 57. an upper limit plate; 58. a lifting ring; 59. positioning clamping grooves; 60. a top plate; 61. a first spring; 62. spring tongue; 63. a support rod; 64. pushing the inclined plane; 65. a support plate; 66. a hanging plate; 67. an elastic rotating shaft; 68. an inner cavity; 7. a buffer structure; 71. an energy absorbing shell; 72. an impact support shaft; 73. a second spring; 74. a pressure chamber; 75. a seal ring; 76. sealing the outer ring; 77. a fitting seat; 78. a buffer sealing sheet; 8. a hydraulic cylinder; 9. a movable shaft.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1-8, an expansion screw testing machine includes a testing box 1 and a base fixing structure 2 on one side of the testing box 1, where the base fixing structure 2 includes a supporting outer shell 21, a limiting shell 22, an inner hydraulic cylinder 23, a supporting upper base 24, a side fixing frame 25 and a hydraulic inner shaft 26, the supporting outer shell 21 is located at an upper end of an inner wall of the testing box 1, the inner hydraulic cylinder 23 is installed inside the supporting outer shell 21, the hydraulic inner shaft 26 is installed inside the inner hydraulic cylinder 23, the supporting upper base 24 is arranged at an upper end of the hydraulic inner shaft 26, four side fixing frames 25 are arranged on an outer annular array of the supporting upper base 24, a limiting bottom groove 30 is arranged at an axial center position of the supporting upper base 24, a bolt 3 is installed at an upper end of the limiting bottom groove 30, a sleeve 4 is installed outside the bolt 3, a hydraulic cylinder 8 is installed at an upper end of the base fixing structure 2, a movable shaft 9 is installed inside the hydraulic cylinder 8, a buffer structure 7 is installed at a lower end of the movable shaft 9, and a fixing structure 5 is installed at a lower end of the buffer structure 7.
The bolt 3 is placed in the limiting bottom groove 30, then four side fixing frames 25 are gathered inwards, the inner walls of the side fixing frames 25 are in contact with the outer surface of the sleeve 4, a tetragonal clamping state is formed, at the moment, the movable shaft 9 falls down to drive, the fixing structure 5 is sleeved at the upper end position of the bolt 3, the bolt 3 can be quickly fixed through the cooperation of the inner structure of the base fixing structure 2, the side fixing frames 25 are of annular array clamping structures, the clamping degree of the bolt can be greatly enhanced, the fixing clamping operation can be always realized at the two ends of the bolt when the bolt is pulled by a large weight, the supporting state of the sleeve 4 can be visually checked through the fixing mode of the device, and the bolt 3 can be prevented from splashing due to the fact that the bolt 3 is in a tetragonal shrinkage fixing mode after exceeding the limiting state.
Example 2
The present embodiment is an improvement made on the basis of embodiment 1, specifically referring to fig. 1-8, a piston 27 is installed at the lower end of the hydraulic inner shaft 26, the piston 27 is used for supporting and positioning the hydraulic inner shaft 26 in the inner hydraulic cylinder 23, a limiting shell 22 is arranged at the upper end of the supporting outer shell 21, the limiting shell 22 is used for shrinking the side fixing frame 25, a liquid inlet pipe 32 is installed at the outer side of the inner hydraulic cylinder 23, and hydraulic oil is filled in the inner hydraulic cylinder 23.
Through feed liquor pipe 32 and external hydraulic equipment connection, can provide the hydraulic drive effect for the hydraulic inner axle 26, the hydraulic inner axle 26 that makes possesses high pressure support that pushes down, the inner wall of spacing casing 22 and the surface laminating of side mount 25, simultaneously, when the hydraulic inner axle 26 whereabouts, the inner wall of spacing casing 22 forms spacing effect to the surface of side mount 25, through the continuous whereabouts of hydraulic inner axle 26, make side mount 25 be inwards furled the state, and the pressure that hydraulic inner axle 26 falls is bigger, then the side mount 25 inwards tightens up the power is bigger, simultaneously the snap-in force to bolt 3 and sleeve pipe 4 is bigger, thereby the dynamics that side mount 25 was inwards tightened up is decided to the downforce of hydraulic inner axle 26, through the elevating movement with the hydraulic inner axle 26, the hydraulic drive mode has been adjusted into, and the centre gripping effect of side mount 25 to bolt 3 and sleeve pipe 4 has been improved by a wide margin, when increasing its snap-in force, the centre gripping operation mode of side mount 25 has also been changed, the manpower need not to realize the drive of device, make the centre gripping operation of bolt 3 more convenient.
Example 3
The present embodiment is an improvement made on the basis of embodiment 2, specifically, referring to fig. 1-8, the inner wall of the side fixing frame 25 is provided with an arc fitting groove 28, the lower end of the inner wall of the side fixing frame 25 is provided with a fixing bevel edge 31, and the fixing bevel edge 31 is used for limiting the lower end of the sleeve 4.
After the sleeve 4 is pressed down, the lower end of the sleeve is expanded outwards, the expanded size is consistent with the conical structure of the lower end of the bolt 3, and the sleeve is attached to the inner wall of the arc attaching groove 28 through the expanded part to form a clamping state, so that the fixing effect of the sleeve 4 is improved.
Example 4
The present embodiment is an improvement made on the basis of embodiment 3, specifically referring to fig. 1-8, the inner wall of the arc-shaped fitting groove 28 is provided with a friction cone strip 29, and the friction cone strip 29 is used for increasing the friction force between the side fixing frame 25 and the outer surface of the sleeve 4.
The lower surface of the bolt 3 is placed in the limit bottom groove 30, hydraulic oil is provided for the inside of the internal hydraulic cylinder 23 through the liquid inlet pipe 32, hydraulic power support is provided for the piston 27, the piston 27 moves downwards, meanwhile, the hydraulic inner shaft 26 is driven to fall down, the upper support base 24 falls down together, after the upper support base 24 falls down to a certain height, the inner wall of the upper support base 24 is attached to the outer surfaces of the side fixing frames 25, the four side fixing frames 25 are folded inwards, the outer surfaces of the sleeve 4 are clamped, friction cone strips 29 can increase friction force with the outer surfaces of the sleeve 4, at the moment, the movable shaft 9 falls down, the fixing structure 5 is driven to fall, the upper end of the bolt 3 is sleeved through the fixing structure 5, a fixed state is formed, and the fixing operation of the upper end of the bolt 3 is completed;
the movable shaft 9 retracts to realize a pulling effect on the bolt 3, when the bolt 3 is pulled, the sleeve 4 is contacted with the friction cone strip 29 to form downward corresponding pulling operation, the lower end of the bolt 3 is provided with an inclined plane, the lower end of the sleeve 4 is outwards expanded through the inclined plane and extends to the position of the fixed inclined edge 31 while expanding, the bolt 3 is in an upward lifting movement state at the moment, the lower end of the sleeve 4 is positioned between the outer surface of the bolt 3 and the inner wall of the fixed inclined edge 31, and when the bolt 3 is lifted, the sleeve 4 is in an extrusion state through the bolt 3 and the fixed inclined edge 31, so that the pulling strength of the bolt 3 is increased, and the experimental detection operation of the device is realized;
through the cooperation of base fixed knot constructs 2 inner structure, the device only need place bolt 3 in the assigned position can, need not the manual work and install fixedly to the device is inside to adopt hydraulic pressure mode, provides the driving force of inwards contracting to side mount 25, makes the device can furthest support the fixed operation to bolt 3, and can accurately test out the bearing pressure data of bolt, and showing the installation stability degree that has improved the device, and improved the detection interval of device, makes the device can detect multiple model expansion screw.
Example 5
The embodiment is an improvement made on the basis of embodiment 4, specifically referring to fig. 1-8, the fixing structure 5 includes a support housing 51, a fixing inner groove 52, a mounting inner groove 53, a clamping block 54, an inner pushing inclined surface 55 and a rotating shaft 56, the upper surface of the support housing 51 is used for being fixed with the lower surface of the buffer structure 7, the fixing inner groove 52 is arranged in the support housing 51, the mounting inner groove 53 is further arranged in the support housing 51, a clamping block 54 is arranged in the mounting inner groove 53, one side of the clamping block 54 is provided with the inner pushing inclined surface 55, the rotating shaft 56 is arranged in the clamping block 54, and the rotating shaft 56 is used for fixing the clamping block 54 in the mounting inner groove 53.
When the support housing 51 is sleeved on the upper end of the bolt 3, the outer side of the bolt 3 is contacted with the inward pushing inclined surface 55, and the clamping block 54 is pushed inwards, so that the upper end of the bolt 3 passes through one side of the clamping block 54, the bolt 3 is clamped in the support housing at a certain speed, and the support operation is provided for the device.
Example 6
The embodiment is an improvement made on the basis of embodiment 5, specifically referring to fig. 1-8, an upper end limiting plate 57 is arranged at the upper end of the clamping block 54, a lifting ring 58 is further installed inside the installation inner groove 53, a pushing inclined surface 64 is arranged on the outer side of the lifting ring 58, the pushing inclined surface 64 is used for pushing the upper end position of the upper end limiting plate 57, a spring tongue 62 is installed on one side of the upper end limiting plate 57, and the spring tongue 62 is used for providing an elastic function for the upper end limiting plate 57.
When the upper end of the bolt 3 is fixed inside the support housing 51 and the detection is completed, the corresponding mechanism is absent to take out the bolt;
the lifting ring 58 drives the pushing inclined plane 64 to jack up upwards, meanwhile, the outer side of the pushing inclined plane 64 rubs the outer surface of the upper end limiting plate 57, the upper end limiting plate 57 is pushed to one side, a lever state is formed between the upper end limiting plate 57 and the clamping block 54 through the rotating shaft 56, the clamping block 54 is guaranteed to shrink inwards by pushing the upper end limiting plate 57, and therefore the upper end of the bolt 3 falls off in the inner fixed groove 52, the device has the function of facilitating the disassembly of the bolt 3, and the bolt 3 is convenient to take out the inner fixed groove 52.
Example 7
The present embodiment is an improvement on the basis of embodiment 6, specifically referring to fig. 1-8, a top plate 60 is installed in the fixed inner groove 52, a first spring 61 is installed at the upper end of the top plate 60, a supporting rod 63 is disposed at the outer side of the top plate 60, and the supporting rod 63 is used for fixing the outer side of the top plate 60 with the inner wall of the lifting ring 58.
The top plate 60 is additionally arranged to form a linkage state with the lifting ring 58, so that when the bolt 3 is lifted, the top plate 60 is lifted up, the lifting ring 58 is lifted up, the upper end of the upper end limiting plate 57 is clamped in the positioning clamping groove 59, a fixed state is formed, and the bolt 3 is conveniently fixed.
Example 8
The present embodiment is an improvement made on the basis of embodiment 7, specifically, referring to fig. 1-8, the lower end of the pushing inclined plane 64 is provided with a positioning slot 59 located in the lifting ring 58, the top end of the upper end limiting plate 57 is used for being clamped in the positioning slot 59, an inner cavity 68 is arranged in the clamping block 54, the inner side of the inner cavity 68 is provided with a supporting plate 65, the lower end of the supporting plate 65 is provided with a hanging plate 66, one side of the hanging plate 66 is provided with an elastic rotating shaft 67, and the elastic rotating shaft 67 is used for supporting the hanging plate 66 to be vertically arranged at the lower end of the supporting plate 65.
When the lower end of the bolt 3 is fixed by the base fixing structure 2, the lower end of the bolt 3 falls down through the supporting shell 51, the upper end of the bolt 3 is clamped in the fixed inner groove 52, the upper end of the bolt 3 is fixed through the clamping block 54, the locking function of the bolt 3 is completed, and when the bolt is taken out, the lower end of the fixing structure 5 is only required to be fallen down, the top plate 60 is lifted up, the top plate 60 and the lifting ring 58 are of an integral structure, the lifting ring 58 is driven to lift up while the lifting ring 58 is lifted up, the outer surface of the pushing inclined surface 64 is attached and limited to the outer side of the upper end limiting plate 57, the upper end limiting plate 57 is pushed to one side, the clamping block 54 is retracted into the inner part of the mounting inner groove 53 through the lever principle, and meanwhile, after the bolt 3 is lifted up to the extreme limiting position, the top end of the upper end limiting plate 57 is clamped into the inner part of the positioning clamping groove 59, the positioning operation is realized on the clamping block 54, and the bolt 3 is convenient to withdraw from the inner part of the fixed inner groove 52;
the upper end limiting plate 57 is attached to one side of the inner wall of the inner mounting groove 53, one side of the clamping block 54 is positioned at the outlet position of the lower end of the inner mounting groove 53, meanwhile, the supporting plate 65 is vertically positioned at the outlet position of the lower end of the inner mounting groove 53, when the upper end of the bolt 3 passes, the outer side of the supporting plate is pressed against the upper end of the hanging plate 66, the supporting plate 65 and the hanging plate 66 are pressed down, the clamping block 54 is driven to turn to one side, the upper end limiting plate 57 is withdrawn from the positioning clamping groove 59, the clamping block 54 is reset, a circulation fixing operation is formed, and the lower end of the bolt 3 is fixed with the base fixing structure 2 through the cooperation operation of the inner structure of the fixing structure 5;
the supporting shell 51 can lock and unlock the bolt 3 only by lifting operation through the movable shaft 9, so that the bolt 3 is installed in detection, the fixing convenience of the device to the bolt 3 is greatly improved, the device is not required to be fixedly installed by operators, and the device is suitable for the fixed installation of various bolts, so that the interference operation of the operators is greatly reduced when the bolt 3 is installed, the convenient installation of the bolt 3 is realized, and the safety problem caused by manual contact is avoided.
Example 9
The present embodiment is an improvement made on the basis of embodiment 8, specifically referring to fig. 1-8, the buffer structure 7 includes an energy-absorbing shell 71, an impact supporting shaft 72, a second spring 73, and a pressure cavity 74, the pressure cavity 74 is provided in the energy-absorbing shell 71, the impact supporting shaft 72 is installed in the pressure cavity 74, the second spring 73 is installed on the outer sides of the energy-absorbing shell 71 and the impact supporting shaft 72, a sealing ring 75 is installed on the top end of the impact supporting shaft 72, the second spring 73 is used for providing an elastic effect between the energy-absorbing shell 71 and the impact supporting shaft 72, and the oil is filled in the pressure cavity 74.
When the bolt 3 breaks or is in other states, the tension generated in the bolt is large, and after the bolt breaks, the movable shaft 9 can generate large vibration when retracting, so that the operation of the internal structure of the device is influenced;
when the impact support shaft 72 is retracted, the impact force is counteracted by the elastic effect generated by the second spring 73, so that the strength of the impact force is weakened, and meanwhile, the sealing ring 75 provides sealing conditions for the top end of the impact support shaft 72, so that the pressure support function can be provided for the device again.
Example 10
The present embodiment is an improvement made on the basis of embodiment 9, specifically, referring to fig. 1-8, two rows of seal outer rings 76 are installed on the outer side of the seal ring 75, a fitting seat 77 located on the outer side of the seal ring 75 is installed between the two seal outer rings 76, a buffer seal piece 78 is arranged on the outer side of the fitting seat 77, and a gap exists between one end of the seal outer ring 76 and the inner wall of the pressure chamber 74.
When the sealing ring 75 receives impact thrust and extrudes upwards, oil in the inner space of the pressure cavity 74 is pressurized, after the oil in the pressure cavity 74 receives pressure, the oil flows to the lower end of the sealing ring 75 along a gap between the sealing outer ring 76 and the pressure cavity 74, when the oil flows, impact force generated by the impact supporting shaft 72 acts inside the sealing ring 75, the inner space of the pressure cavity 74 is pressurized by the sealing ring 75, so that the pressure is converted into outward flowing force of the oil in the pressure cavity 74, the faster the flowing speed of the oil is, the smaller the pressure can be supported, the sealing is formed between the two sealing outer rings 76 through the buffer sealing sheets 78, but the buffer sealing sheets 78 have a certain elastic effect, so that the flow speed of the oil is slowed down when the oil passes through, the impact force born by the impact supporting shaft 72 is further increased when the oil pressure is improved, and the device is internally provided with an oil buffer mode, and secondary damage caused by rapid rebound of the impact supporting shaft 72 can be avoided.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (6)
1. The utility model provides an inflation screw testing machine, includes detection box (1) and detects base fixed knot who detects box (1) one side constructs (2), its characterized in that: the base fixed knot constructs (2) including supporting shell body (21), spacing casing (22), interior pneumatic cylinder (23), support base (24), side mount (25) and hydraulic inner shaft (26), support shell body (21) and be located the upper end of detecting box (1) inner wall, support shell body (21) internally mounted has interior pneumatic cylinder (23), the internally mounted of interior pneumatic cylinder (23) has hydraulic inner shaft (26), the upper end of hydraulic inner shaft (26) is equipped with support base (24), the outside annular array of support base (24) has four side mount (25), the axle center position of support base (24) is equipped with spacing kerve (30), bolt (3) are installed to the upper end of spacing kerve (30), sleeve (4) are installed in the outside of bolt (3), hydraulic cylinder (8) are installed to the upper end of base fixed knot constructs (2), hydraulic cylinder (8) internally mounted has loose axle (9), the lower extreme annular array of loose axle (26) has four side mount (25), the buffer structure (7) is installed down, buffer structure (5) are installed down.
The fixing structure (5) comprises a supporting shell (51), a fixing inner groove (52), an installation inner groove (53), a clamping block (54), an inner pushing inclined surface (55) and a rotating shaft (56), wherein the upper surface of the supporting shell (51) is used for being fixed with the lower surface of the buffering structure (7), the fixing inner groove (52) is arranged in the supporting shell (51), the installation inner groove (53) is further arranged in the supporting shell (51), a clamping block (54) is arranged in the installation inner groove (53), the inner pushing inclined surface (55) is arranged on one side of the clamping block (54), the rotating shaft (56) is arranged in the clamping block (54), and the clamping block (54) is fixed in the installation inner groove (53);
the upper end of the clamping block (54) is provided with an upper end limiting plate (57), a lifting ring (58) is further arranged in the installation inner groove (53), a pushing inclined surface (64) is arranged on the outer side of the lifting ring (58), the pushing inclined surface (64) is used for pushing the upper end position of the upper end limiting plate (57), one side of the upper end limiting plate (57) is provided with a spring tongue (62), and the spring tongue (62) is used for providing an elastic effect for the upper end limiting plate (57);
a top plate (60) is arranged in the fixed inner groove (52), a first spring (61) is arranged at the upper end of the top plate (60), a supporting rod (63) is arranged at the outer side of the top plate (60), and the supporting rod (63) is used for fixing the outer side of the top plate (60) and the inner wall of the lifting ring (58);
the lower extreme of promotion inclined plane (64) is equipped with location draw-in groove (59) that are located lift ring (58), the top of upper end limiting plate (57) is used for the card in location draw-in groove (59), the inside of fixture block (54) is equipped with interior cavity (68), backup pad (65) are installed to the inboard of interior cavity (68), link plate (66) are installed to the lower extreme of backup pad (65), elasticity pivot (67) are installed to one side of link plate (66), elasticity pivot (67) are used for supporting link plate (66) and install the lower extreme at backup pad (65) perpendicularly.
2. The expansion screw tester according to claim 1, wherein: the hydraulic inner shaft (26) is characterized in that a piston (27) is arranged at the lower end of the hydraulic inner shaft (26), the piston (27) is used for supporting and positioning the hydraulic inner shaft (26) in an inner hydraulic cylinder (23), a limiting shell (22) is arranged at the upper end of the supporting outer shell (21), the limiting shell (22) is used for shrinking a side fixing frame (25), a liquid inlet pipe (32) is arranged at the outer side of the inner hydraulic cylinder (23), and hydraulic oil is filled in the inner hydraulic cylinder (23).
3. The expansion screw tester according to claim 2, wherein: the inner wall of side mount (25) is equipped with arc laminating groove (28), the lower extreme of side mount (25) inner wall is equipped with fixed hypotenuse (31), fixed hypotenuse (31) are used for limiting sleeve (4) lower extreme.
4. The expansion screw tester according to claim 3, wherein: the inner wall of the arc-shaped attaching groove (28) is provided with a friction cone strip (29), and the friction cone strip (29) is used for increasing the friction force between the side fixing frame (25) and the outer surface of the sleeve (4).
5. The expansion screw tester according to claim 4, wherein: the buffer structure (7) comprises an energy-absorbing shell (71), an impact supporting shaft (72), a second spring (73) and a pressure cavity (74), wherein the pressure cavity (74) is arranged in the energy-absorbing shell (71), the impact supporting shaft (72) is arranged in the pressure cavity (74), the second spring (73) is arranged on the outer side of the energy-absorbing shell (71) and the outer side of the impact supporting shaft (72), a sealing ring (75) is arranged on the top end of the impact supporting shaft (72), and the second spring (73) is used for providing an elastic effect for the energy-absorbing shell (71) and the impact supporting shaft (72), and oil is filled in the pressure cavity (74).
6. The expansion screw tester according to claim 5, wherein: two rows of sealing outer rings (76) are arranged on the outer side of the sealing ring (75), a laminating seat (77) positioned on the outer side of the sealing ring (75) is arranged between the two sealing outer rings (76), a buffer sealing piece (78) is arranged on the outer side of the laminating seat (77), and a gap exists between one end of the sealing outer ring (76) and the inner wall of the pressure cavity (74).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211184561.2A CN115575215B (en) | 2022-09-27 | 2022-09-27 | Expansion screw testing machine |
| GBGB2302471.4A GB202302471D0 (en) | 2022-09-27 | 2023-02-22 | Test device for expansion screw and anchor bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211184561.2A CN115575215B (en) | 2022-09-27 | 2022-09-27 | Expansion screw testing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115575215A CN115575215A (en) | 2023-01-06 |
| CN115575215B true CN115575215B (en) | 2023-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211184561.2A Active CN115575215B (en) | 2022-09-27 | 2022-09-27 | Expansion screw testing machine |
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| Country | Link |
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| CN (1) | CN115575215B (en) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1213968A (en) * | 1958-12-04 | 1960-04-05 | Automatic device for installing profiled clamps for fixing electric wires or other applications | |
| JPH0639307U (en) * | 1992-10-26 | 1994-05-24 | 重三 前川 | Chuck device that combines parallel sliding chuck claw holder and wedge type chuck claw of material testing machine |
| US6923331B2 (en) * | 2003-08-05 | 2005-08-02 | Westinghouse Air Brake Technologies Corporation | High capacity draft gear |
| KR101542457B1 (en) * | 2015-06-02 | 2015-08-12 | 최창호 | Mold Locking Device For Centrifugal Casting Machine |
| CN105605058A (en) * | 2016-03-25 | 2016-05-25 | 张子豹 | V-shaped universal expansion bolt |
| CN107179235B (en) * | 2017-04-25 | 2018-02-13 | 中国地质大学（武汉） | A kind of fixing device and method for installing Multiple Shape irregular structure interview sample |
| CN209690066U (en) * | 2018-12-27 | 2019-11-26 | 贵州理工学院 | A kind of material physical property detection device |
| CN109826092A (en) * | 2019-03-20 | 2019-05-31 | 青海民族大学 | A kind of shock-absorbing bridge support |
| CN214894021U (en) * | 2021-06-29 | 2021-11-26 | 余姚法思德五金有限公司 | Expansion screw fastening detector |
| CN114295469A (en) * | 2022-01-24 | 2022-04-08 | 浙江省交通运输科学研究院 | Annular clamping device for pipe tensile test and using method |
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- 2022-09-27 CN CN202211184561.2A patent/CN115575215B/en active Active
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|---|---|
| CN115575215A (en) | 2023-01-06 |
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