CN110939235A - Connecting structure capable of adjusting prestress in two directions - Google Patents
Connecting structure capable of adjusting prestress in two directions Download PDFInfo
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- CN110939235A CN110939235A CN201911242444.5A CN201911242444A CN110939235A CN 110939235 A CN110939235 A CN 110939235A CN 201911242444 A CN201911242444 A CN 201911242444A CN 110939235 A CN110939235 A CN 110939235A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/08—Members specially adapted to be used in prestressed constructions
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/08—Members specially adapted to be used in prestressed constructions
- E04C5/12—Anchoring devices
- E04C5/125—Anchoring devices the tensile members are profiled to ensure the anchorage, e.g. when provided with screw-thread, bulges, corrugations
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Abstract
The invention relates to a bidirectional prestress-adjustable connecting structure, which comprises a plug pin part, a locking part and an adjusting part, wherein the plug pin part is provided with a plug pin hole; the locking part comprises a lock cylinder, a supporting sleeve fixed at the open end of the lock cylinder in a threaded manner and a locking mechanism arranged in the lock cylinder; the upper end of the inner peripheral surface of the supporting sleeve is provided with an inward inclination angle; the other end of the lock cylinder is sleeved with a workpiece; the plug pin part comprises a pin cylinder which is open towards one end of the locking part and a plug pin head which is inserted into the lock cylinder; the bolt head is fixed in the open end of the bolt barrel through a thread at the threaded end arranged at the tail end of the bolt head; the other end of the pin cylinder is sleeved with another workpiece; an annular groove is formed in the outer peripheral wall of the tail end of the plug pin head; the ball is accommodated in the annular groove; the bolt head is inserted into the lock cylinder, the ball enters the annular groove, and the bolt head is locked in the locking mechanism; the adjusting part can be used for adjusting the supporting sleeve or the bolt head; rotating the adjusting part to push the supporting sleeve forward, and enabling the bolt head to be stressed and deformed to generate a pre-pressing stress; the adjusting part is rotated to enable the bolt head to retreat, and the bolt head is stressed and deformed to generate pretensioning stress.
Description
Technical Field
The invention relates to a bidirectional prestress-adjustable connecting structure, and belongs to the technical field of locking and connecting pieces.
Background
In recent years, the plug-in structure is widely applied to component connection in various fields, and has the advantages of no need of welding, convenience in implementation and small deformation under stress. However, if the structure needs to be pre-stressed, more processes and equipment are needed to realize the structure.
The invention discloses a self-driven pin lock prestress connecting structure and a connecting method, and particularly discloses a self-driven pin lock prestress connecting structure and a connecting method, which are invented in China with the patent publication number of CN106948492A, can quickly and conveniently realize a relatively economic prestress connecting structure in a splicing mode, can be directly assembled after prestress is directly applied on a building construction site, and can ensure that the applied prestress can be quickly used for construction, thereby effectively solving the problem of high cost caused by complicated structure and long construction period of the traditional prestress product. However, in the self-driven pin lock prestress connection structure, the bolt head is pushed by grouting towards the first thrust cavity or the second thrust cavity to obtain the prestress or the prestress, only one prestress (namely one prestress or the other prestress) can be provided at a time, the two-way prestress cannot be provided at the same time, and flexible response cannot be realized when the compressive stress and the tensile stress of the pin lock structure are converted. In addition, post-grouting consolidation takes time and the slurry has insufficient hardness, resulting in less pre-stress that can be applied.
Disclosure of Invention
In order to overcome the problems, the invention provides a bidirectional prestress-adjustable connecting structure, wherein a prestress joint can simultaneously apply prestress and pretension, can quickly achieve stress conversion similar to welding micro deformation when bearing compressive stress or tensile stress subsequently, and simultaneously improves the bearing capacity of the prestress joint.
The technical scheme of the invention is as follows:
a bidirectional adjustable prestress connecting structure comprises a pin part and a locking part which are respectively arranged on two components and are coaxial; an adjusting part is also arranged between the plug pin part and the locking part; the locking part comprises a lock cylinder, a support sleeve and a locking mechanism, wherein the lock cylinder is open towards one end of the bolt part, the support sleeve is fixed at the open end of the lock cylinder in a threaded manner, and the locking mechanism is arranged in the lock cylinder; the upper end of the inner peripheral surface of the supporting sleeve is provided with an inward inclination angle; the locking mechanism comprises a ball, a spring, a ball basin and a gasket; the other end of the lock cylinder is sleeved with a workpiece, and one end of the workpiece sleeved in the lock cylinder is provided with a pier head; the bolt part comprises a bolt barrel which is opened towards one end of the locking part and a bolt head which is inserted into the lock barrel; the bolt head is fixed in the open end of the bolt barrel through a thread at the tail end of the bolt head; the other end of the pin cylinder is sleeved with another workpiece, and a pier head of the workpiece is sleeved in the pin cylinder; an annular groove is formed in the outer peripheral wall of the tail end of the plug pin head; one end of the spring is propped against the pier head in the lock cylinder, and the other end of the spring is propped against the gasket; the bead basin is arranged between the pier head and the bolt head in the lock cylinder; the ball is accommodated in the annular groove; the bolt head is inserted into the lock cylinder, the ball enters the annular groove under the action of the spring and the gasket, and the bolt head is locked in the locking mechanism; the adjusting part can be used for adjusting the support sleeve or the bolt head; rotating the adjusting part to push the supporting sleeve forward, and enabling the bolt head to be stressed and deformed to generate a pre-pressing stress; the adjusting part is rotated to enable the bolt head to retreat, and the bolt head is stressed and deformed to generate pretensioning stress.
Further, the adjusting part comprises a first adjusting end and a first adjusting nut; the first adjusting end is fixedly arranged between the bolt head and the threaded end; the first adjusting nut is fixed on the outer side of the tail end of the supporting sleeve in a threaded mode; the lower end surface of the first adjusting nut is tightly attached to the upper end surface of the first adjusting end; the inner diameter of the first adjusting nut is smaller than the outer diameter of the first adjusting end; a gap is reserved between the joint of the first adjusting end and the threaded end and the end surface of the open end of the pin barrel; a gap is reserved between the upper end surface of the first adjusting nut and the open end surface of the lock cylinder; rotating the first adjusting end to enable the bolt head to retreat, and enabling the bolt head fixed by the locking mechanism to deform under stress to generate pre-tensioning stress; rotating the first adjusting nut to enable the first adjusting nut to extrude the first adjusting end, enabling the supporting sleeve to be ejected forwards under the action of reaction force, and enabling the bolt head fixed by the locking mechanism to deform under stress to generate pre-pressing stress.
Further, the adjusting part further comprises a first gasket; the first gasket is sleeved outside the plug pin head; the first washer is positioned between the first adjustment end and the first adjustment nut.
Further, the adjusting part comprises a second adjusting end and a second adjusting nut; the second adjusting end is fixedly arranged at the outer side of the tail end of the supporting sleeve; the second adjusting nut is fixed on the outer side of the upper end of the threaded end in a threaded manner; the lower end surface of the second adjusting end is tightly attached to the upper end surface of the second adjusting nut; the inner diameter of the second adjusting nut is smaller than the outer diameter of the second adjusting end; a gap is reserved between the upper end of the second adjusting end and the open end face of the lock cylinder; a gap is reserved between the lower end of the second adjusting nut and the end surface of the open end of the pin barrel; rotating the second adjusting end to push the supporting sleeve forward, and enabling the bolt head fixed by the locking mechanism to deform under stress to generate pre-pressing stress; and rotating the second adjusting nut to enable the second adjusting nut to extrude the second adjusting end, wherein the threaded end of the bolt head retracts backwards under the action of a reaction force, and the bolt head fixed by the locking mechanism deforms under the action of a force to generate a pre-tensioning stress.
Further, the adjusting part further comprises a second washer; the second gasket is sleeved outside the plug pin head; the second washer is positioned between the second adjustment end and the second adjustment nut.
Further, the adjusting part comprises a third adjusting end, a third adjusting nut and a first adjusting screw sleeve; the third adjusting end is fixedly arranged between the bolt head and the threaded end; the first adjusting screw sleeve is fixedly arranged on the outer side of the lower part of the plug pin head; the third adjusting nut is fixed at the tail end of the outer side of the first adjusting screw sleeve in a threaded manner; the lower end surface of the third adjusting nut is tightly attached to the upper end surface of the third adjusting end; the inner diameter of the third adjusting nut is smaller than the outer diameter of the supporting sleeve; a gap is reserved between the joint of the third adjusting end and the threaded end and the end surface of the open end of the pin barrel; a gap is reserved between the upper end surface of the third adjusting nut and the open end surface of the lock cylinder; rotating the third adjusting end to enable the plug head to retreat, and enabling the plug head fixed by the locking mechanism to deform under stress to generate pre-tensioning stress; and rotating the third adjusting nut to enable the third adjusting nut to extrude the supporting sleeve, wherein the supporting sleeve is pushed forwards under stress, and the bolt head fixed by the locking mechanism is stressed and deformed to generate pre-stress.
Further, the adjusting part comprises a fourth adjusting end, a fourth adjusting nut and a second adjusting screw sleeve; the fourth adjusting end is fixedly arranged at the tail end of the supporting sleeve; the second adjusting screw sleeve is fixedly arranged at the tail end of the fourth adjusting end; the fourth adjusting nut is fixed on the outer side of the upper end of the second adjusting threaded sleeve in a threaded manner; the lower end surface of the fourth adjusting end is tightly attached to the upper end surface of the fourth adjusting nut; the inner diameter of the fourth adjusting nut is smaller than the outer diameter of the threaded end; a gap is reserved between the upper end of the fourth adjusting end and the open end face of the lock cylinder; a gap is reserved between the lower end of the fourth adjusting nut and the end surface of the open end of the pin barrel; rotating the fourth adjusting end to push the supporting sleeve forward, and enabling the bolt head fixed by the locking mechanism to deform under stress to generate pre-pressing stress; and rotating the fourth adjusting nut to enable the fourth adjusting nut to extrude the threaded end, enabling the threaded end of the plug pin head to be stressed and retreated, and enabling the plug pin head fixed by the locking mechanism to be stressed and deformed to generate pretensioning stress.
The invention has the following beneficial effects:
1. the prestress joint can apply prestress and pretension stress at the same time, can quickly perform stress conversion when bearing compressive stress or tensile stress subsequently, and simultaneously improves the bearing capacity of the prestress joint.
2. Through rotating adjusting nut, can eliminate the clearance between adjusting nut and the regulation end, when preventing pressure, the stress transform of power, the joint takes place to warp because of having the clearance, leads to becoming invalid.
3. By rotating the adjusting nut, the adjusting nut is abutted against the adjusting end, and can be directly assembled after prestress is directly applied on a building construction site, so that the applied prestress can be quickly used for construction, and the defect of long construction period of the traditional prestress product can be effectively avoided.
Drawings
Fig. 1 is a schematic overall structure diagram of a first embodiment of the present invention.
Fig. 2 is a partial cross-sectional view of a first embodiment of the present invention.
Fig. 3 is a cross-sectional view of a locking portion according to a first embodiment of the present invention.
Fig. 4 is a cross-sectional view of the plug pin portion according to the first embodiment of the present invention.
Fig. 5 is a schematic overall structure diagram of a second embodiment of the present invention.
Fig. 6 is a partial sectional view of a second embodiment of the present invention.
Fig. 7 is a sectional view of a latch according to a second embodiment of the present invention.
Fig. 8 is a sectional view of the plug pin portion according to the second embodiment of the invention.
Fig. 9 is a schematic overall structure diagram of a third embodiment of the present invention.
Fig. 10 is a partial sectional view of a third embodiment of the present invention.
Fig. 11 is a sectional view of a latch according to a third embodiment of the present invention.
FIG. 12 is a sectional view of a plug pin part according to a third embodiment of the present invention.
Fig. 13 is an overall structural schematic diagram of a fourth embodiment of the present invention.
Fig. 14 is a partial sectional view of a fourth embodiment of the present invention.
Fig. 15 is a cross-sectional view of a latch according to a fourth embodiment of the present invention.
Fig. 16 is a cross-sectional view of a plug pin portion according to a fourth embodiment of the present invention.
The reference numbers in the figures denote:
1. a plug pin portion; 11. a pin barrel; 12. a plug pin head; 13. a threaded end; 14. an annular trench; 2. a locking portion; 21. a lock cylinder; 22. a support sleeve; 23. a ball bearing; 24. a spring; 25. a bead basin; 26. a gasket; 27. a basin-type ball rack; 3. an adjustment section; 31. a first regulation end; 32. a first adjusting nut; 33. a first gasket; 41. a second regulation end; 42. a second adjusting nut; 43. a second gasket; 51. a third regulation end; 52. a third adjusting nut; 53. a first adjusting screw sleeve; 61. a fourth regulation end; 62. a fourth adjusting nut; 63. a second adjusting screw sleeve; 7. a workpiece; 71. and (5) upsetting the pier head.
Detailed Description
The invention is described in detail below with reference to the figures and the specific embodiments.
The first embodiment is as follows:
referring to fig. 1-4, a bidirectional adjustable prestress connecting structure comprises a pin part 1 and a locking part 2 which are respectively arranged on two components and are coaxial; an adjusting part 3 is also arranged between the plug pin part 1 and the locking part 2; the locking part 2 comprises a lock cylinder 21 with one end opened towards the plug pin part 1, a support sleeve 22 fixed at the opened end of the lock cylinder 21 in a threaded manner and a locking mechanism arranged in the lock cylinder 21; the upper end of the inner peripheral surface of the support sleeve 22 is provided with an inward inclination angle; the locking mechanism comprises a ball 23, a spring 24, a ball basin 25 and a gasket 26; the other end of the lock cylinder 21 is sleeved with a workpiece 7, and one end of the workpiece 7, which is sleeved in the lock cylinder 21, is provided with a pier head 71; the plug pin part 1 comprises a pin barrel 11 which is open towards one end of the locking part 2 and a plug pin head 12 which is inserted into the lock barrel 21; the bolt head 12 is fixed in the open end of the bolt barrel 11 through a thread end 13 arranged at the tail end of the bolt head; the other end of the pin tube 11 is sleeved with another workpiece 7, and a pier head 71 of the workpiece 7 is sleeved in the pin tube 11; an annular groove 14 is formed in the outer peripheral wall of the tail end of the plug head 12; one end of the spring 24 is abutted against the pier head 71 in the lock cylinder 21, and the other end is abutted against the gasket 26; the bead basin 25 is arranged between the pier head 71 and the bolt head 12 in the lock cylinder 21; the lower end surface of the gasket 26, the wall surface of the annular groove 14 and the inner inclination angle of the support sleeve 22 form a containing part for containing the ball 23; the balls 23 are housed in the annular groove 14; the bolt head 12 is inserted into the lock cylinder 21, the ball 23 enters the annular groove 14 under the action of the spring 24 and the gasket 26, and the bolt head 12 is locked in the locking mechanism; the adjustment part 3 can be used to adjust the support sleeve 22 or the latch head 12; rotating the adjusting part 3 to push the supporting sleeve 22 forward, and the bolt head 12 is deformed under stress to generate a pre-pressing stress; the adjusting part 3 is rotated to enable the plug head 12 to retreat, and the plug head 12 is stressed and deformed to generate pretension stress.
In particular, the locking mechanism may also be a combination of the spring 24, the ball 23 and the basin-shaped ball frame 27 as in the "multipurpose basin-shaped ball frame" of the chinese utility model patent with the publication number CN 208235721U. The bowl ball frame 27 is integral during installation, and after the plug head 12 is inserted into the lock cylinder 21, the bowl ball frame 27 is broken into the ball bowl 25 and the gasket 26 by impact.
In particular, the head of the workpiece 7 may be engaged with the lock cylinder 21 or the pin cylinder 11 by providing the abutment 71, or may be directly fixed to the lock cylinder 21 or the pin cylinder 11 by welding.
Further, the adjusting portion 3 includes a first adjusting end 31 and a first adjusting nut 32; the first adjusting end 31 is fixedly arranged between the bolt head 12 and the threaded end 13; the first adjusting nut 32 is fixed outside the tail end of the supporting sleeve 22 in a threaded mode; the lower end surface of the first adjusting nut 32 is tightly attached to the upper end surface of the first adjusting end 31; the first adjusting nut 32 has an inner diameter smaller than the outer diameter of the first adjusting end 31; a gap is reserved between the joint of the first adjusting end 31 and the threaded end 13 and the open end surface of the pin barrel 11; a gap is reserved between the upper end surface of the first adjusting nut 32 and the open end surface of the lock cylinder 21; rotating the first adjusting end 31 to enable the plug head 12 to retreat, and enabling the plug head 12 fixed by the locking mechanism to deform under stress to generate pre-tensioning stress; rotating the first adjusting nut 32 makes the first adjusting nut 32 extrude the first adjusting end 31, the supporting sleeve 22 is pushed out forward by the counterforce, the bolt head 12 fixed by the locking mechanism is deformed by force, and the pre-stress is generated. Set up the clearance, can avoid the deformation of sudden generation when this prestressing force connects bearing stress transform, make first regulation end 31 lower extreme collision round pin section of thick bamboo 11, perhaps first adjusting nut 32 upper end collision lock section of thick bamboo 21, damage this prestressing force and connect the structure.
Further, the adjusting portion 3 further includes a first washer 33; the first washer 33 is sleeved outside the plug pin head 12; the first washer 33 is located between the first adjustment end 31 and the first adjustment nut 32. When the difference between the outer diameters of the first adjusting end 31 and the first adjusting nut 32 is obvious, the first washer 33 is added to enable the two to be stressed more evenly.
In particular, the first adjustment end 31 has a rectangular or hexagonal cross-section. The first adjusting end 31 can be conveniently clamped at the periphery of the first adjusting end by a tool such as a wrench, and adjustment is convenient.
In particular, as an alternative, the outer wall surface of the first adjustment end 31 may also be provided with one or more adjustment teeth. In this way, the operator can also turn the first adjustment end 31 by means of a wrench engaging with the adjustment teeth.
The working principle of the embodiment is as follows:
referring to fig. 1-4, during installation, the workpiece 7 is first placed in the lock cylinder 21, the spring 24 is then placed, the bowl ball holder 27 is then placed on the support sleeve 22, and the balls 23 are then placed such that the balls 23 slide between the bowl ball holder 27 and the support sleeve 22. Then, the ball 23 is fixed by pressing down the pot ball holder 27. Then the supporting sleeve 22 is installed in the lock cylinder 21 of the locking part 2, and the upper end of the basin-shaped ball rack 27 is in contact with the spring 24 in the locking part 2, so that the installation of the locking part 2 is completed. When the plug pin part 1 is installed, the workpiece 7 is placed in the pin cylinder 11, and the threaded end 13 of the plug pin head 12 is connected to the open end of the pin cylinder 11. When the locking part 2 and the plug pin part 1 are in plugging operation, the plug pin head 12 enters the supporting sleeve 22 of the locking part 2 and then abuts against a push bearing groove at the lower end of the basin-type ball frame 27, the basin-type ball frame 27 is broken under stress along with the continuous jacking of the plug pin head 12 into the locking part 2 and is separated into a gasket 26 and a ball basin 25, meanwhile, under the action of the gasket 26 and the spring 24, the ball 23 is pushed into the accommodating part of the plug pin head 12, meanwhile, the gasket 26 can be clamped on the upper part of the accommodating part of the plug pin head 12, the gasket 26 is matched with the accommodating part to well fix the ball 23, and the ball basin 25 is continuously jacked out by the plug pin head 12 and penetrates through the gasket 26 from the middle part to be fixed between the plug pin head 12 and the workpiece 7.
After the connector is installed, if it is found that the plug head 12 is not completely inserted into the latch mechanism and cannot be locked, the first adjusting end 31 can be clamped by a wrench, the position of the plug head 12 is adjusted, so that the plug head is completely inserted into the latch mechanism and locked.
When the prestress joint is applied with prestress, the first adjusting end 31 can be clamped by a wrench, the position of the bolt head 12 is adjusted to retract, the bolt head 12 fixed by the locking mechanism is stressed and deformed to generate the prestress, then the first adjusting nut 32 is rotated to be attached to the first adjusting end 31, and the phenomenon that the whole connecting structure is loosened due to the fact that a gap is generated between the bolt head 12 and the supporting sleeve 22 due to retraction is prevented; when the prestress joint is applied with prestress, the first adjusting nut 32 is rotated to make the first adjusting nut 32 extrude the first adjusting end 31, because the first adjusting nut 32 can not move, the supporting sleeve 22 which is in threaded connection with the first adjusting nut 32 is ejected forwards by the reaction force, the bolt head 12 fixed by the locking mechanism is deformed by stress, and the prestress is generated. Therefore, bidirectional prestress can be simultaneously applied to the prestress joint, and the prestress joint can instantly realize instant seamless conversion of tension and compression stress when bearing tension and compression stress conversion.
After the prestress is applied, a sealing material such as cement or glue is smeared on the gap between the lock cylinder 21 and the pin cylinder 11 to fill the gap between the connecting components, so that the connecting strength of the connecting components is increased, and the looseness and corrosion of the connecting components are prevented.
Example two:
referring to fig. 5 to 8, the present embodiment is different from the first embodiment in that the adjusting part 3 includes a second adjusting end 41 and a second adjusting nut 42; the second adjusting end 41 is fixedly arranged outside the tail end of the supporting sleeve 22; the second adjusting nut 42 is fixed outside the upper end of the threaded end 13 in a threaded manner; the lower end surface of the second adjusting end 41 is tightly attached to the upper end surface of the second adjusting nut 42; the second adjusting nut 42 has an inner diameter smaller than the outer diameter of the second adjusting end 41; a gap is reserved between the upper end of the second adjusting end 41 and the open end surface of the lock cylinder 21; a gap is reserved between the lower end of the second adjusting nut 42 and the open end surface of the pin barrel 11; rotating the second adjusting end 41 to push the supporting sleeve 22 forward, and the bolt head 12 fixed by the locking mechanism is deformed under stress to generate a pre-stress; the second adjusting nut 42 is rotated to enable the second adjusting nut 42 to extrude the second adjusting end 41, the thread end 13 of the bolt head 12 retracts backwards under the reaction force, the bolt head 12 fixed by the locking mechanism deforms under the stress, and the pretensioning stress is generated.
Further, the adjusting portion 3 further includes a second washer 43; the second washer 43 is sleeved outside the plug pin head 12; the second washer 43 is located between the second adjustment end 41 and the second adjustment nut 42.
In particular, the cross section of the second adjustment end 41 is rectangular or hexagonal.
In particular, the outer wall surface of the second adjustment end 41 may alternatively be provided with one or more adjustment teeth.
The working principle of the embodiment is as follows:
referring to fig. 5-8, the installation process of this embodiment is the same as that of the first embodiment.
After the connector is installed, if it is found that the plug head 12 is not completely inserted into the latch mechanism and locking cannot be achieved, the second adjusting end 41 can be clamped by a wrench, the position of the plug head 12 is adjusted, the plug head is completely inserted into the latch mechanism, and locking is achieved.
When the prestress joint is applied with prestress, the second adjusting end 41 can be clamped by a wrench, the position of the supporting sleeve 22 is adjusted to enable the supporting sleeve to be pushed forwards, the bolt head 12 fixed by the locking mechanism is stressed and deformed to generate prestress, then the second adjusting nut 42 is rotated to be attached to the second adjusting end 41, and the phenomenon that the whole connecting structure is loosened due to the fact that a gap is generated between the bolt head 12 and the front pushing of the supporting sleeve 22 is prevented; when the prestress joint is applied with prestress, the second adjusting nut 42 is screwed to enable the second adjusting nut 42 to extrude the second adjusting end 41, and because the second adjusting end 41 cannot move, the threaded end 13 of the bolt head 12 in threaded connection with the second adjusting nut 42 is subjected to reaction force, so that the bolt head 12 retracts backwards, and the bolt head 12 fixed by the locking mechanism is subjected to stress deformation to generate the prestress. Therefore, bidirectional prestress can be simultaneously applied to the prestress joint, and the prestress joint can instantly realize instant seamless conversion of tension and compression stress when bearing tension and compression stress conversion.
After the prestress is applied, a sealing material such as cement or glue is smeared on the gap between the lock cylinder 21 and the pin cylinder 11 to fill the gap between the connecting components, so that the connecting strength of the connecting components is increased, and the looseness and corrosion of the connecting components are prevented.
Example three:
referring to fig. 9 to 12, the present embodiment is different from the first embodiment in that the adjusting portion 3 includes a third adjusting end 51, a third adjusting nut 52, and a first adjusting screw 53; the third adjusting end 51 is fixedly arranged between the bolt head 12 and the threaded end 13; the first adjusting thread sleeve 53 is fixedly arranged on the outer side of the lower part of the plug pin head 12; the third adjusting nut 52 is fixed at the outer end of the first adjusting screw sleeve 53 in a threaded manner; the lower end surface of the third adjusting nut 52 is tightly attached to the upper end surface of the third adjusting end 51; the third adjustment nut 52 has an inner diameter smaller than the outer diameter of the support sleeve 22; a gap is reserved between the joint of the third adjusting end 51 and the threaded end 13 and the open end surface of the pin barrel 11; a gap is reserved between the upper end surface of the third adjusting nut 52 and the open end surface of the lock cylinder 21; rotating the third adjusting end 51 to enable the plug head 12 to retreat, and enabling the plug head 12 fixed by the locking mechanism to deform under stress to generate pre-tensioning stress; rotating the third adjusting nut 52 makes the third adjusting nut 52 extrude the supporting sleeve 22, the supporting sleeve 22 is pushed out forwards under stress, the bolt head 12 fixed by the locking mechanism is deformed under stress, and pre-stress is generated.
In particular, the third adjustment end 51 has a rectangular or hexagonal cross-section.
In particular, the outer wall surface of the third adjustment end 51 may alternatively be provided with one or more adjustment teeth.
The working principle of the embodiment is as follows:
referring to fig. 9-12, the installation process of this embodiment is the same as that of the first embodiment.
After the connector is installed, if it is found that the plug head 12 is not completely inserted into the latch mechanism and the locking cannot be achieved, the third adjusting end 51 can be clamped by a wrench, the position of the plug head 12 is adjusted, the plug head is completely inserted into the latch mechanism, and the locking is achieved.
When the prestress joint is applied with prestress, the third adjusting end 51 can be clamped by a wrench, the position of the bolt head 12 is adjusted to retract, the bolt head 12 fixed by the locking mechanism is deformed under stress to generate the prestress, then the third adjusting nut 52 is rotated to be attached to the supporting sleeve 22, and the phenomenon that the whole connecting structure is loosened due to the fact that a gap is generated between the bolt head 12 and the supporting sleeve 22 due to retraction is prevented; when the prestress joint is applied with prestress, the third adjusting nut 52 is rotated to enable the third adjusting nut 52 to extrude the supporting sleeve 22, the supporting sleeve 22 is pushed forwards under stress, the bolt head 12 fixed by the locking mechanism is deformed under stress, and the prestress is generated. Therefore, bidirectional prestress can be simultaneously applied to the prestress joint, and the prestress joint can instantly realize instant seamless conversion of tension and compression stress when bearing tension and compression stress conversion.
After the prestress is applied, a sealing material such as cement or glue is smeared on the gap between the lock cylinder 21 and the pin cylinder 11 to fill the gap between the connecting components, so that the connecting strength of the connecting components is increased, and the looseness and corrosion of the connecting components are prevented.
Example four:
referring to fig. 13 to 16, the present embodiment is different from the first embodiment in that the adjusting portion 3 includes a fourth adjusting end 61, a fourth adjusting nut 62, and a second adjusting screw 63; the fourth adjusting end 61 is fixedly arranged at the tail end of the supporting sleeve 22; the second adjusting screw sleeve 63 is fixedly arranged at the tail end of the fourth adjusting end 61; the fourth adjusting nut 62 is fixed on the outer side of the upper end of the second adjusting threaded sleeve 63 in a threaded manner; the lower end surface of the fourth adjusting end 61 is tightly attached to the upper end surface of the fourth adjusting nut 62; the fourth adjustment nut 62 has an inner diameter smaller than the outer diameter of the threaded end 13; a gap is reserved between the upper end of the fourth adjusting end 61 and the open end surface of the lock cylinder 21; a gap is reserved between the lower end of the fourth adjusting nut 62 and the open end surface of the pin barrel 11; rotating the fourth adjusting end 61 to push the supporting sleeve 22 forward, and the bolt head 12 fixed by the locking mechanism is deformed under stress to generate a pre-stress; and (3) rotating the fourth adjusting nut 62 to enable the fourth adjusting nut 62 to extrude the threaded end 13, enabling the threaded end 13 of the plug head 12 to be stressed to retreat, and enabling the plug head 12 fixed by the locking mechanism to be stressed and deformed to generate pretension stress.
In particular, the cross section of the fourth adjustment end 61 is rectangular or hexagonal.
In particular, the outer wall surface of the fourth adjustment end 61 may alternatively be provided with one or more adjustment teeth.
The working principle of the embodiment is as follows:
referring to fig. 13-16, the installation process of this embodiment is the same as that of the first embodiment.
After the connector is installed, if it is found that the plug head 12 is not completely inserted into the latch mechanism and cannot be locked, the fourth adjusting end 61 can be clamped by a wrench, the position of the plug head 12 is adjusted, so that the plug head is completely inserted into the latch mechanism and locked.
When the prestress joint is applied with prestress, the fourth adjusting end 61 can be clamped by a wrench, the position of the supporting sleeve 22 is adjusted to enable the supporting sleeve to be pushed forwards, the bolt head 12 fixed by the locking mechanism is stressed and deformed to generate prestress, then the fourth adjusting nut 62 is rotated to be attached to the threaded end 13, and the phenomenon that the whole connecting structure is loosened due to the fact that a gap is generated between the bolt head 12 and the front pushing of the supporting sleeve 22 is prevented; when the prestress joint is applied with prestress, the fourth adjusting nut 62 is rotated to enable the fourth adjusting nut 62 to extrude the threaded end 13, the threaded end 13 is stressed to enable the plug head 12 to retract backwards, and the plug head 12 fixed by the locking mechanism is stressed and deformed to generate the prestress. Therefore, bidirectional prestress can be simultaneously applied to the prestress joint, and the prestress joint can instantly realize instant seamless conversion of tension and compression stress when bearing tension and compression stress conversion.
After the prestress is applied, a sealing material such as cement or glue is smeared on the gap between the lock cylinder 21 and the pin cylinder 11 to fill the gap between the connecting components, so that the connecting strength of the connecting components is increased, and the looseness and corrosion of the connecting components are prevented.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. The utility model provides a connection structure of two-way adjustable prestressing force which characterized in that: comprises a plug pin part (1) and a locking part (2) which are respectively arranged on two components and are coaxial; an adjusting part (3) is also arranged between the plug pin part (1) and the locking part (2); the locking part (2) comprises a lock cylinder (21) which is open towards one end of the plug pin part (1), a supporting sleeve (22) which is fixed at the open end of the lock cylinder (21) in a threaded manner and a locking mechanism which is arranged in the lock cylinder (21); the upper end of the inner peripheral surface of the supporting sleeve (22) is provided with an inward inclination angle; the locking mechanism comprises a ball (23), a spring (24), a ball basin (25) and a gasket (26); a workpiece (7) is sleeved at the other end of the lock cylinder (21), and a pier head (71) is arranged at one end of the workpiece (7) sleeved in the lock cylinder (21); the plug pin part (1) comprises a pin barrel (11) which is open towards one end of the locking part (2) and a plug pin head (12) which is inserted into the lock barrel (21); the bolt head (12) is fixed in the open end of the bolt barrel (11) through a thread end (13) arranged at the tail end of the bolt head; the other end of the pin cylinder (11) is sleeved with another workpiece (7), and a pier head (71) of the workpiece (7) is sleeved in the pin cylinder (11); an annular groove (14) is formed in the outer peripheral wall of the tail end of the plug pin head (12); one end of the spring (24) is abutted against the inner pier head (71) of the lock cylinder (21), and the other end of the spring is abutted against the gasket (26); the bead basin (25) is arranged between the pier head (71) and the bolt head (12) in the lock cylinder (21); the balls (23) are accommodated in the annular groove (14); the bolt head (12) is inserted into the lock cylinder (21), the ball (23) enters the annular groove (14) under the action of the spring (24) and the gasket (26), and the bolt head (12) is locked in the locking mechanism; the adjusting part (3) can be used for adjusting the support sleeve (22) or the plug head (12); rotating the adjusting part (3) to push the supporting sleeve (22) forward, and enabling the plug pin head (12) to be stressed and deformed to generate pre-stress; the adjusting part (3) is rotated to enable the plug head (12) to retreat, and the plug head (12) is stressed and deformed to generate pretension stress.
2. The bi-directionally adjustable prestressed connection structure of claim 1, wherein: the adjusting part (3) comprises a first adjusting end (31) and a first adjusting nut (32); the first adjusting end (31) is fixedly arranged between the bolt head (12) and the threaded end (13); the first adjusting nut (32) is fixed outside the tail end of the supporting sleeve (22) in a threaded mode; the lower end surface of the first adjusting nut (32) is tightly attached to the upper end surface of the first adjusting end (31); the inner diameter of the first adjusting nut (32) is smaller than the outer diameter of the first adjusting end (31); a gap is reserved between the joint of the first adjusting end (31) and the threaded end (13) and the open end surface of the pin barrel (11); a gap is reserved between the upper end surface of the first adjusting nut (32) and the open end surface of the lock cylinder (21); rotating the first adjusting end (31) to enable the plug pin head (12) to retreat, and enabling the plug pin head (12) fixed by the locking mechanism to be stressed and deformed to generate pretension stress; the first adjusting nut (32) is rotated to enable the first adjusting nut (32) to extrude the first adjusting end (31), the supporting sleeve (22) is ejected forwards under the reaction force, the bolt head (12) fixed by the locking mechanism is stressed and deformed, and pre-stress is generated.
3. The bi-directionally adjustable prestressed connection structure of claim 2, wherein: the adjustment portion (3) further comprises a first washer (33); the first gasket (33) is sleeved outside the plug pin head (12); the first washer (33) is located between the first adjustment end (31) and the first adjustment nut (32).
4. The bi-directionally adjustable prestressed connection structure of claim 1, wherein: the adjusting part (3) comprises a second adjusting end (41) and a second adjusting nut (42); the second adjusting end (41) is fixedly arranged outside the tail end of the supporting sleeve (22); the second adjusting nut (42) is fixed on the outer side of the upper end of the threaded end (13) in a threaded manner; the lower end surface of the second adjusting end (41) is tightly attached to the upper end surface of the second adjusting nut (42); the inner diameter of the second adjusting nut (42) is smaller than the outer diameter of the second adjusting end (41); a gap is reserved between the upper end of the second adjusting end (41) and the open end face of the lock cylinder (21); a gap is reserved between the lower end of the second adjusting nut (42) and the open end face of the pin barrel (11); rotating the second adjusting end (41) to push the supporting sleeve (22) forward, and enabling the bolt head (12) fixed by the locking mechanism to be stressed and deformed to generate pre-stress; and rotating the second adjusting nut (42) to enable the second adjusting nut (42) to extrude the second adjusting end (41), wherein the threaded end (13) of the bolt head (12) retracts backwards under the action of a reaction force, and the bolt head (12) fixed by the locking mechanism is stressed and deformed to generate pretension stress.
5. The bi-directionally adjustable prestressed connection structure of claim 4, wherein: the adjustment portion (3) further comprises a second washer (43); the second gasket (43) is sleeved outside the plug pin head (12); the second washer (43) is located between the second adjustment end (41) and the second adjustment nut (42).
6. The bi-directionally adjustable prestressed connection structure of claim 1, wherein: the adjusting part (3) comprises a third adjusting end (51), a third adjusting nut (52) and a first adjusting threaded sleeve (53); the third adjusting end (51) is fixedly arranged between the bolt head (12) and the threaded end (13); the first adjusting screw sleeve (53) is fixedly arranged on the outer side of the lower part of the plug pin head (12); the third adjusting nut (52) is fixed at the outer end of the first adjusting screw sleeve (53) in a threaded manner; the lower end surface of the third adjusting nut (52) is tightly attached to the upper end surface of the third adjusting end (51); the third adjusting nut (52) inner diameter is smaller than the support sleeve (22) outer diameter; a gap is reserved between the joint of the third adjusting end (51) and the threaded end (13) and the open end surface of the pin barrel (11); a gap is reserved between the upper end surface of the third adjusting nut (52) and the open end surface of the lock cylinder (21); rotating the third adjusting end (51) to enable the plug pin head (12) to retreat, and enabling the plug pin head (12) fixed by the locking mechanism to be stressed and deformed to generate pretension stress; rotating the third adjusting nut (52) to enable the third adjusting nut (52) to extrude the supporting sleeve (22), the supporting sleeve (22) is pushed out forwards under stress, and the bolt head (12) fixed by the locking mechanism is deformed under stress to generate pre-stress.
7. The bi-directionally adjustable prestressed connection structure of claim 1, wherein: the adjusting part (3) comprises a fourth adjusting end (61), a fourth adjusting nut (62) and a second adjusting threaded sleeve (63); the fourth adjusting end (61) is fixedly arranged at the tail end of the supporting sleeve (22); the second adjusting screw sleeve (63) is fixedly arranged at the tail end of the fourth adjusting end (61); the fourth adjusting nut (62) is fixed on the outer side of the upper end of the second adjusting screw sleeve (63) in a threaded manner; the lower end surface of the fourth adjusting end (61) is tightly attached to the upper end surface of the fourth adjusting nut (62); the inner diameter of the fourth adjusting nut (62) is smaller than the outer diameter of the threaded end (13); a gap is reserved between the upper end of the fourth adjusting end (61) and the open end face of the lock cylinder (21); a gap is reserved between the lower end of the fourth adjusting nut (62) and the open end face of the pin barrel (11); rotating the fourth adjusting end (61) to push the supporting sleeve (22) forward, and enabling the bolt head (12) fixed by the locking mechanism to be stressed and deformed to generate pre-stress; and (3) rotating the fourth adjusting nut (62) to enable the fourth adjusting nut (62) to extrude the threaded end (13), the threaded end (13) of the plug pin head (12) is stressed to retreat, and the plug pin head (12) fixed by the locking mechanism is stressed to deform to generate pretension stress.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911242444.5A CN110939235A (en) | 2019-12-06 | 2019-12-06 | Connecting structure capable of adjusting prestress in two directions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911242444.5A CN110939235A (en) | 2019-12-06 | 2019-12-06 | Connecting structure capable of adjusting prestress in two directions |
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| Publication Number | Publication Date |
|---|---|
| CN110939235A true CN110939235A (en) | 2020-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911242444.5A Pending CN110939235A (en) | 2019-12-06 | 2019-12-06 | Connecting structure capable of adjusting prestress in two directions |
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| Country | Link |
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| CN (1) | CN110939235A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021109911A1 (en) * | 2019-12-06 | 2021-06-10 | 邓剑涛 | Connection structure capable of bidirectional prestress adjustment |
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2019
- 2019-12-06 CN CN201911242444.5A patent/CN110939235A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021109911A1 (en) * | 2019-12-06 | 2021-06-10 | 邓剑涛 | Connection structure capable of bidirectional prestress adjustment |
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