A fastener quick installation device

Abstract

The present invention discloses a fastener quick installation device, comprising: a front-end bolt limiter, which includes a limit fixing shell and a front-end bolt gripper; a nut rotator, which includes a nut rotation transmission member and a nut rotation power member, and the nut rotation power member is sleeved outside the nut rotation transmission member to apply pressure to the nut rotation transmission member so as to push the nut rotation transmission member to drive the buckled nut to rotate within the limit fixing shell; a rear-end bolt limiter, which includes an auxiliary support rod, a front push support rod and a progressive buckling member, the front push support rod is arranged on the limit fixing shell through the auxiliary support rod, and the progressive buckling member circumferentially rotates and axially moves on the front push support rod as the nut rotation transmission member rotates. The structure of the present invention is simple, the design concept is novel, it is convenient to use, the manufacturing and use costs are low, the applicable range is wide, and it can effectively reduce the working intensity and effectively improve the working efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of fastener equipment, and more specifically, the present invention relates to a fastener rapid installation device. Background Art

[0002] Bolts are one of the most commonly used fasteners in industrial production. Fasteners are a class of mechanical parts used for fastening connections and are extremely widely applied. All kinds of fasteners can be seen on various machinery, petroleum equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, meters, and supplies. A fastener installation device is required during the tightening process of fasteners. Most of the existing fastener installation devices are electric screwdrivers, which use the high rotation speed of the electric screwdriver to install nuts on bolts. However, the electric screwdriver needs to be continuously powered on or requires an external battery to install fasteners, so its application range is limited. Moreover, the electric screwdriver is relatively large in volume and has high requirements for the space around the fastener installation, further restricting its usage scenarios. At the same time, during the process of installing the nut by rotation on the bolt, the bolt often rotates along with the nut. When the bolt rotates together with the nut, the nut cannot be further screwed onto the bolt. In actual operation, to solve this problem, the bolt is often manually restricted from rotating before the nut is rotated and installed, and then the nut is rotated and screwed onto the bolt that is circumferentially stationary. However, this operation method significantly increases the complexity of bolt installation inspection, significantly increases the labor intensity of workers, significantly reduces the work efficiency and the application range of fastener installation, and significantly increases the fastener installation cost of the enterprise. Summary of the Invention

[0003] In order to overcome the above defects, the present invention provides a fastener rapid installation device, and specifically adopts the following technical solutions:

[0004] A fastener rapid installation device includes:

[0005] A front-end bolt limiting member, which includes a limiting fixed shell and a front-end bolt gripping member, and the front-end bolt gripping member grips and restricts the rotation of the bolt on the limiting fixed shell;

[0006] A nut rotating member, which is arranged on the limiting fixed shell and includes a nut rotating transmission member and a nut rotating power member. The nut rotating power member is sleeved outside the nut rotating transmission member and applies pressure to the nut rotating transmission member to push the nut rotating transmission member to drive the buckled nut to rotate in the limiting fixed shell;

[0007] The rear-end bolt limiter is arranged on the limit fixing shell. The rear-end bolt limiter includes an auxiliary support rod, a forward push support rod, and a progressive buckling member. The forward push support rod is arranged on the limit fixing shell through the auxiliary support rod. The progressive buckling member circumferentially rotates and axially moves on the forward push support rod as the nut rotating transmission member rotates, so that the progressive buckling member grasps and restricts the rotation of the bolt.

[0008] Preferably, the front-end bolt grasping member includes a rear-end power rod, a grasping fixing rod, and a front-end grasping rod. The rear-end power rod is hinged to the limit fixing shell at the corner through a first hinge shaft. A force-applying rod is arranged at one end of the rear-end power rod, and a sliding long through hole is arranged at the other end of the rear-end power rod. One end of the grasping fixing rod is arranged on the limit fixing shell; the front-end grasping rod includes a first front-end grasping rod, a second front-end grasping rod, a first return spring, and a second return spring. The first front-end grasping rod is hinged to the other end of the grasping fixing rod at the corner through a second hinge shaft. One end of the first front-end grasping rod is installed in the sliding long through hole through a sliding rotating shaft arranged thereon. The second front-end grasping rod is sleeved on the other end of the first front-end grasping rod through a grasping groove arranged on one end surface thereof. The first return spring is installed in the grasping groove. A first threaded holding pad is arranged at the other end of the second front-end grasping rod. One end of the second return spring is connected to the first front-end grasping rod, and the other end of the second return spring is connected to the limit fixing shell; two sets of the front-end bolt grasping members are symmetrically distributed circumferentially on the limit fixing shell.

[0009] Preferably, the nut rotating transmission member includes a nut transmission tube, a transmission support plate, a first thrust ball bearing, an adapter pad, and a universal adapter rod. The transmission support plate is fixedly sleeved on the nut transmission tube. The first thrust ball bearing is sleeved on the nut transmission tube, and one end surface of the first thrust ball bearing is connected to the transmission support plate. The nut transmission tube is arranged on the limit fixing shell through the first thrust ball bearing, and one end of the nut transmission tube penetrates through the bottom of the barrel of the limit fixing shell.

[0010] Preferably, the adapter pad is fixedly installed in the nut transmission tube. The universal adapter rod includes a first universal adapter rod, a second universal adapter rod, and a third return spring. The first universal adapter rod is tubular. One end of the first universal adapter rod is arranged on the adapter pad. The third return spring is installed in the first universal adapter rod. One end of the second universal adapter rod is installed in the tube at the other end of the first universal adapter rod; multiple universal adapter rods are uniformly and closely arranged on the adapter pad.

[0011] Preferably, the nut rotation power member includes a nut rotation sleeve, a one-way barrier member, a power pressing sleeve, and a fourth return spring. The nut rotation sleeve is fixedly sleeved on the nut transmission pipe. A first helical groove and a second helical groove are circumferentially arranged on the outer side wall of the nut rotation sleeve, and the first helical groove and the second helical groove are evenly distributed circumferentially on the nut rotation sleeve. One end of the first helical groove is connected to the other end of the second helical groove through a first straight groove, and the other end of the first helical groove is connected to one end of the second helical groove through a second straight groove. The one-way barrier member includes a barrier sliding pipe, a barrier sliding tongue, and a fifth return spring. One end of the barrier sliding pipe sequentially penetrates through the nut transmission pipe and the nut rotation sleeve, and the barrier sliding pipe communicates with the first straight groove at the penetration of the first helical groove. The fifth return spring is embedded in the other end of the barrier sliding pipe. One end of the barrier sliding tongue is provided with an inclined surface, and the other end of the barrier sliding tongue is embedded in one end of the barrier sliding pipe. Two sets of the one-way barrier members respectively correspond to the first straight groove and the second straight groove one by one.

[0012] Preferably, power sliders are arranged on the inner wall of the power pressing sleeve, and the two power sliders are evenly distributed circumferentially on the power pressing sleeve. The free end of the power pressing sleeve is sleeved on the nut rotation sleeve, and the two power sliders are respectively embedded in the first helical groove and the second helical groove one by one. The fifth return spring is embedded in the bottom of the power pressing sleeve, and the free end of the fifth return spring is connected to the other end surface of the nut transmission pipe.

[0013] Preferably, the auxiliary support rod is in the shape of a right-angle rod. One end of the auxiliary support rod is arranged at the opening of the limit fixing shell, and the other end of the auxiliary support rod passes through a forward push long strip through hole arranged on the power pressing sleeve. One end of the forward push support rod is arranged at the other end of the auxiliary support rod, and the axis of the forward push support rod coincides with the axis of the nut transmission pipe.

[0014] Preferably, the progressive buckling member includes an axially moving seat, a circumferentially rotating member, and a rear end buckling rod. A threaded hole is arranged at the bottom of the axially moving seat cylinder, and the axially moving seat is sleeved on the forward push support rod through the threaded hole, and the threaded hole is matched with the external thread on the forward push support rod.

[0015] Preferably, the circumferential rotating member includes a circumferential transmission seat, a circumferential transmission fixed pipe, a circumferential transmission head, and a sixth return spring. The circumferential transmission seat is annular, and the circumferential transmission seat is movably installed in the inner wall of the nut transmission pipe. The transmission slider on the outer side of the circumferential transmission seat cooperates with the transmission chute on the inner wall of the nut transmission pipe. A circular groove is provided on the inner side of the circumferential transmission seat, and a plurality of the circular grooves are evenly distributed in the circumferential direction of the circumferential transmission seat. One end of the circumferential transmission fixed pipe penetrates through the barrel wall of the axial moving seat, the sixth return spring is installed in the circumferential transmission fixed pipe, and one end of the circumferential transmission head is installed in the circumferential transmission fixed pipe.

[0016] Preferably, the rear end buckling rod is hinged to the port of the axial moving seat through a third hinge shaft at the folding angle. A second threaded gripping pad is provided at one end of the rear end buckling rod, and two rear end buckling rods are symmetrically distributed on the port of the axial moving seat. A seventh return spring is connected to the other ends of the two rear end buckling rods at the same time, and a pressing transmission plate is provided at the free end of the seventh return spring.

[0017] The present invention has at least the following beneficial effects:

[0018] 1) The fastener quick installation device of the present invention has a simple structure, novel design concept, convenient use, low manufacturing and use costs, wide application range, can effectively reduce the working intensity and effectively improve the working efficiency;

[0019] 2) The fastener quick installation device of the present invention includes a limit fixing shell, a front-end bolt gripping member, a nut rotation transmission member, and a nut rotation power member. Before screwing the nut, the front-end bolt gripping member is used to grip and limit the rotation of the bolt, and then the nut rotation power member is axially pressed repeatedly to drive the nut rotation transmission member to continuously rotate in one direction. The nut rotation transmission member rotating in one direction drives the buckled nut to rotate on the bolt that is circumferentially stationary, so as to be quickly screwed onto the bolt. During the process of screwing the nut onto the bolt, no external power supply is required, and only axial reciprocating pressing is needed, which effectively improves the application range. And during the process of screwing the nut, there is no need to additionally lock the bolt circumferentially, which greatly improves the convenience of the nut fastening process, effectively reduces the labor intensity of the staff and effectively improves the working efficiency.

[0020] Other advantages, objectives and features of the present invention will be partially reflected by the following description, and partially will also be understood by those skilled in the art through the research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is the front view of the fastener quick installation device of the present invention;

[0022] Figure 2Schematic diagram of the three-dimensional structure of the front end of the fastener quick installation device of the present invention;

[0023] Figure 3 Schematic diagram of the three-dimensional structure of the rear end of the fastener quick installation device of the present invention;

[0024] Figure 4 Front view of the front end of the fastener quick installation device of the present invention;

[0025] Figure 5 For the fastener quick installation device of the present invention Figure 4 Front view of the sectional view in the A-A direction in;

[0026] Figure 6 For the fastener quick installation device of the present invention Figure 4 Schematic diagram of the three-dimensional structure of the sectional view in the A-A direction in;

[0027] Figure 7 For the fastener quick installation device of the present invention Figure 6 Partial enlarged view of C in;

[0028] Figure 8 For the fastener quick installation device of the present invention Figure 4 Schematic diagram of the three-dimensional structure of the sectional view in the B-B direction in;

[0029] Figure 9 Schematic diagram of the three-dimensional structure of the fastener quick installation device of the present invention after removing the limit fixing shell.

[0030] Wherein: 1 - limit fixing shell, 2 - rear end power rod, 3 - grasping and fixing rod, 4 - force applying rod, 5 - first front end grasping rod, 6 - second front end grasping rod, 7 - second return spring, 8 - sliding long through hole, 9 - first threaded holding pad, 10 - nut transmission tube, 11 - transmission support plate, 12 - first thrust ball bearing, 13 - adapter pad, 14 - universal adapter rod, 15 - nut rotating sleeve, 16 - power pressing sleeve, 17 - fourth return spring, 18 - first spiral groove, 19 - second spiral groove, 20 - first straight groove, 21 - second straight groove, 22 - barrier sliding tube, 23 - barrier sliding tongue, 24 - fifth return spring, 25 - power slider, 26 - auxiliary support rod, 27 - forward push support rod, 28 - forward push long through hole, 29 - axial movement seat, 30 - rear end buckling rod, 31 - circumferential transmission seat, 32 - circumferential transmission fixed tube, 33 - circumferential transmission head, 34 - sixth return spring, 35 - second threaded holding pad, 36 - seventh return spring. Detailed implementation manners

[0031] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings by way of examples. It should be noted here that the description of these example embodiments is for helping to understand the present invention, but does not constitute a limitation to the present invention.

[0032] The term "and / or" in this article is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, B exists alone, and A and B exist simultaneously. The term " / and" in this article is a description of another association object relationship, indicating that there can be two relationships. For example, A / and B can represent: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally represents that the associated objects before and after are in an "or" relationship.

[0033] According to Figures 1 - 9As shown in the figure, a fastener quick installation device includes a front-end bolt limiter, a nut rotator, and a rear-end bolt limiter. The nut rotator and the rear-end bolt limiter are both arranged on the front-end bolt limiter. The front-end bolt limiter includes a limit fixing shell 1 and a front-end bolt gripper. The front-end bolt gripper is arranged on the limit fixing shell 1. The limit fixing shell 1 is cylindrical. A nut rotation through hole is provided on the bottom of the cylindrical limit fixing shell 1, and the axis of the nut rotation through hole coincides with the axis of the limit fixing shell 1. The front-end bolt gripper includes a rear-end power rod 2, a gripper fixing rod 3, and a front-end gripper rod. The rear-end power rod 2 and the gripper fixing rod 3 are both arranged on the limit fixing shell 1, and the front-end gripper rod is arranged on the gripper fixing rod 3. The rear-end power rod 2 is in an obtuse angle shape. The rear-end power rod 2 is hinged to the limit fixing shell 1 at the corner through a first hinge shaft, so that the rear-end power rod 2 can rotate circumferentially around the first hinge shaft. A force application rod 4 is arranged at one end of the rear-end power rod 2. The force application rod 4 is used for an operator to hold and apply a force in the axial direction of the limit fixing shell 1 to one end of the rear-end power rod 2. A sliding long through hole 8 is arranged at the other end of the rear-end power rod 2. The sliding long through hole 8 is used for connecting with the front-end gripper rod. One end of the gripper fixing rod 3 is vertically and fixedly arranged on the limit fixing shell 1. The gripper fixing rod 3 is used to provide support for the front-end gripper rod. The front-end gripper rod includes a first front-end gripper rod 5, a second front-end gripper rod 6, a first return spring, and a second return spring 7. The first front-end gripper rod 5 is arranged on the gripper fixing rod 3. The second front-end gripper rod 6 is arranged on the first front-end gripper rod 5. The first return spring is arranged on the second front-end gripper rod 6. The second return spring 7 is arranged on the first front-end gripper rod 5. The first front-end gripper rod 5 is in an obtuse angle shape. The first front-end gripper rod 5 is hinged to the other end of the gripper fixing rod 3 at the corner through a second hinge shaft. A sliding rotating shaft is fixedly arranged at one end of the first front-end gripper rod 5. One end of the first front-end gripper rod 5 is installed in the sliding long through hole 8 through the sliding rotating shaft, so that the sliding rotating shaft can slide in the sliding long through hole 8. When the operator holds the force application rod 4 and moves it in the axial direction of the limit fixing shell 1, the first front-end gripper rod 5 will be driven to lift at one end through the sliding long through hole 8 and the sliding rotating shaft, so that the second front-end gripper rod 6 firmly grips the front end of the bolt to limit the rotation of the bolt. The second front-end gripper rod 6 is in an obtuse angle shape. A gripping groove is arranged on one end face of the second front-end gripper rod 6. The cross-sectional size of the gripping groove is larger than the cross-sectional size of the first front-end gripper rod 5. The second front-end gripper rod 6 is sleeved on the other end of the first front-end gripper rod 5 through the gripping groove, so that the second front-end gripper rod 6 can move relative to the first front-end gripper rod 5 in the axial direction.The first return spring is installed in the grasping groove, and one end of the first return spring is connected to the bottom of the grasping groove, and the other end of the first return spring is connected to the other end of the first front-end grasping rod 5. When the second front-end grasping rod 6 is axially compressed and retracted into the first front-end grasping rod 5, the first return spring can urge the second front-end grasping rod 6 to reset. A first threaded gripping pad 9 is provided on the other end of the second front-end grasping rod 6, and the first threaded gripping pad 9 is a rubber pad to increase the circumferential friction between the first threaded gripping pad 9 and the bolt. The first threaded gripping pad 9 can increase the circumferential friction between the second front-end grasping rod 6 and the bolt, thereby restricting the circumferential rotation of the bolt. One end of the second return spring 7 is connected to the first front-end grasping rod 5, and the other end of the second return spring 7 is connected to the limit fixing shell 1. There are two sets of the front-end bolt grasping members, and the two sets of the front-end bolt grasping members are circumferentially symmetrically distributed on the limit fixing shell 1.

[0034] The nut rotating member includes a nut rotation transmission member and a nut rotation power member. The nut rotation transmission member is arranged on the limit fixing shell 1, and the nut rotation power member is arranged on the nut rotation transmission member. The nut rotation transmission member includes a nut transmission tube 10, a transmission support plate 11, a first thrust ball bearing 12, an adapter backing plate 13, and a universal adapter rod 14. The nut transmission tube 10 is arranged on the nut transmission tube 10 through the transmission support plate 11 and the first thrust ball bearing 12. The adapter backing plate 13 is arranged on the nut transmission tube 10, and the universal adapter rod 14 is arranged on the adapter backing plate 13. The nut transmission tube 10 is tubular, and the outer diameter of the nut transmission tube 10 is smaller than the inner diameter of the limit fixing shell 1. The transmission support plate 11 is in the shape of an annular plate. The outer diameter of the transmission support plate 11 is smaller than the inner diameter of the limit fixing shell 1. The transmission support plate 11 is fixedly sleeved on the nut transmission tube 10. The first thrust ball bearing 12 is sleeved on the nut transmission tube 10, and one end face of the first thrust ball bearing 12 is connected to the transmission support plate 11. The nut transmission tube 10 is arranged on the limit fixing shell 1 through the first thrust ball bearing 12. One end of the nut transmission tube 10 passes through the nut rotation through hole, and at the same time, the axis of the nut transmission tube 10 coincides with the axis of the limit fixing shell 1. So that the nut transmission tube 10 can rotate circumferentially in the inner circumference of the limit fixing shell 1 through the first thrust ball bearing 12. The adapter backing plate 13 is in the shape of an annular plate and is fixedly embedded in the nut transmission tube 10. The universal adapter rod 14 includes a first universal adapter rod, a second universal adapter rod, and a third return spring. The first universal adapter rod is tubular. One end of the first universal adapter rod is vertically and fixedly arranged on the adapter backing plate 13. The third return spring is embedded in the first universal adapter rod. One end of the second universal adapter rod is embedded in the tube at the other end of the first universal adapter rod, and one end of the second universal adapter rod is connected to the free end of the third return spring. When the other end of the second universal adapter rod is squeezed, it will contract into the first universal adapter rod. A plurality of universal adapter rods 14 are provided, and the plurality of universal adapter rods are evenly and closely arranged on the adapter backing plate 13. As an option, in order to improve the telescopic rate of the universal adapter rod 14, the universal adapter rod 14 adopts a multi-stage telescopic rod structure, that is, the universal adapter rod 14 includes a first universal adapter rod, a second universal adapter rod, a third universal adapter rod, and a third return spring. One end of the second universal adapter rod is embedded in the free end of the first universal adapter rod. The third return spring is embedded in the first universal adapter rod and the second universal adapter rod. One end of the third universal adapter rod is embedded in the free end of the second universal adapter rod. By adopting a multi-stage telescopic rod structure connection, the telescopic rate of the universal adapter rod 14 is improved.

[0035] The nut rotation power member includes a nut rotation sleeve 15, a one-way blocking member, a power pressing sleeve 16, and a fourth return spring 17. The nut rotation sleeve 15 is fixedly sleeved on the nut transmission pipe 10. The one-way blocking member and the power pressing sleeve 16 are arranged on the nut rotation sleeve 15, and the fourth return spring 17 is arranged on the power pressing sleeve 16. A first spiral groove 18 and a second spiral groove 19 are circumferentially arranged on the outer side wall of the nut rotation sleeve 15. Both the first spiral groove 18 and the second spiral groove 19 are spiral-shaped. The pitches of the first spiral groove 18 and the second spiral groove 19 are both smaller than the length of the nut rotation sleeve 15, and the number of turns of both the first spiral groove 18 and the second spiral groove 19 is not more than 0.5 turn. The first spiral groove 18 and the second spiral groove 19 are evenly distributed circumferentially on the nut rotation sleeve 15. One end of the first spiral groove 18 is connected to the other end of the second spiral groove 19 through a first straight groove 20, and the longitudinal line of the first straight groove 20 is parallel to the axis of the nut rotation sleeve 15; the other end of the first spiral groove 18 is connected to one end of the second spiral groove 19 through a second straight groove, and the longitudinal line of the second straight groove is parallel to the axis of the nut rotation sleeve 15. The one-way blocking member includes a blocking sliding pipe 22, a blocking sliding tongue 23, and a fifth return spring 24. One end of the blocking sliding pipe 22 sequentially penetrates through the nut transmission pipe 10 and the nut rotation sleeve 15, and the blocking sliding pipe 22 is communicated with the penetration point of one end of the first straight groove 20 and one end of the first spiral groove 18. The fifth return spring 24 is embedded in the other end of the blocking sliding pipe 22. One end of the blocking sliding tongue 23 is provided with an inclined surface. The other end of the blocking sliding tongue 23 is embedded in one end of the blocking sliding pipe 22, and the other end surface of the blocking sliding tongue 23 is connected to the free end of the fifth return spring 24. At the same time, the inclined surface faces the first straight groove 20. There are two sets of one-way blocking members, and the two sets of one-way blocking members respectively correspond to the first straight groove 20 and the second straight groove one by one. So that the power slider 25 on the inner wall of the power pressing sleeve 16 can slide from the first straight groove 20 to the first spiral groove 18, while preventing the power slider 25 from sliding from the first spiral groove 18 to the first straight groove 20.

[0036] The power pressing sleeve 16 is in a cylindrical shape. A power slider 25 is arranged on the inner wall of the power pressing sleeve 16. The two power sliders 25 are evenly distributed in the circumferential direction of the power pressing sleeve 16. The free end of the power pressing sleeve 16 is sleeved on the nut rotating sleeve 15, and the two power sliders 25 are respectively and correspondingly embedded in the first spiral groove 18 and the second spiral groove 19. When a worker presses the power pressing sleeve 16 to axially move towards the nut rotating sleeve 15, the two power sliders 25 will slide in the first spiral groove 18 and the second spiral groove 19 to push the nut rotating sleeve 15 and the nut transmission pipe 10 to circumferentially rotate in the inner circumference of the limit fixing shell 1 through the first thrust ball bearing 12. Finally, the nut is driven to rotate and tighten on the bolt that is circumferentially stationary through the universal adaptor rod 14 buckling on the nut. The fifth return spring 24 is embedded on the bottom of the cylinder of the power pressing sleeve 16, and the free end of the fifth return spring 24 is connected to the other end face of the nut transmission pipe 10. Further, a second thrust ball bearing is arranged between the fifth return spring 24 and the other end face of the nut transmission pipe 10 to enable relative circumferential rotation between the fifth return spring 24 and the nut transmission pipe 10. After the power pressing sleeve 16 is pressed to the bottom of the nut rotating sleeve 15 and the pressing stops, the fifth return spring 24 pushes the power pressing sleeve 16 to move away from the nut rotating sleeve 15. At this time, the power slider 25 slides from the first linear groove 20 to the second spiral groove 19 and from the second linear groove to the first spiral groove 18 until it is reset. When the power pressing sleeve 16 is pressed again, due to the blocking effect of the one-way blocking member, the power slider 25 can continue to slide in the first spiral groove 18 and the second spiral groove 19 to continue to push the nut transmission pipe 10 to circumferentially rotate and screw into the nut.

[0037] The rear end bolt limiting member includes an auxiliary support rod 26, a forward push support rod 27 and a progressive buckling member. The auxiliary support rod 26 is arranged on the limit fixing shell 1. The forward push support rod 27 is arranged on the auxiliary support rod 26. The progressive buckling member is arranged on the forward push support rod 27. The auxiliary support rod 26 is in a right-angled rod shape. One end of the auxiliary support rod 26 is arranged on the barrel opening of the limit fixing shell 1. The other end of the auxiliary support rod 26 passes through the forward push long through hole 28 arranged on the power pressing sleeve 16. The longitudinal line of the forward push long through hole 28 is parallel to the axis of the power pressing sleeve 16. At the same time, the auxiliary support rod 26 can also prevent the pressing sleeve from rotating when pressing the power pressing sleeve 16. One end of the forward push support rod 27 is fixedly arranged on the other end of the auxiliary support rod 26, and the axis of the forward push support rod 27 coincides with the axis of the nut transmission pipe 10. External threads are arranged on the forward push support rod 27.

[0038] The progressive buckling member includes an axially moving seat 29, a circumferentially rotating member, and a rear buckling rod 30. The axially moving seat 29 is disposed on the forward pushing support rod 27, the circumferentially rotating member is disposed on the nut transmission tube 10, and the rear buckling rod 30 is disposed on the axially moving seat 29. The axially moving seat 29 is cylindrical, and a threaded hole is provided on the bottom of the cylinder of the axially moving seat 29. The axially moving seat 29 is sleeved on the forward pushing support rod 27 through the threaded hole, and the threaded hole is engaged with the external thread. When the axially moving seat 29 rotates circumferentially, it will push the axially moving seat 29 to move axially on the forward pushing support rod 27 through the threaded hole and the external thread.

[0039] The circumferentially rotating member includes a circumferential transmission seat 31, a circumferential transmission fixed tube 32, a circumferential transmission head 33, and a sixth return spring 34. The circumferential transmission seat 31 is circular ring-shaped, and the circumferential transmission seat 31 is movably fitted on the inner wall of the nut transmission tube 10. The transmission slider on the outer side surface of the circumferential transmission seat 31 is engaged with the transmission chute on the inner wall of the nut transmission tube 10. So that the circumferential transmission seat 31 slides axially and transmits circumferentially in the nut transmission tube 10 through the transmission slider and the transmission chute. A circular groove is provided on the inner side surface of the circumferential transmission seat 31, and a plurality of the circular grooves are evenly distributed circumferentially on the circumferential transmission seat 31. One end of the circumferential transmission fixed tube 32 penetrates through the cylinder wall of the axially moving seat 29, the sixth return spring 34 is fitted in the circumferential transmission fixed tube 32, one end of the circumferential transmission head 33 is fitted in the circumferential transmission fixed tube 32, and one end of the circumferential transmission head 33 is connected to the free end of the sixth return spring 34. The sixth return spring 34 pushes the other end of the circumferential transmission head 33 to be fitted in the circular groove. When the nut transmission tube 10 rotates, it can drive the circumferential transmission seat 31 to rotate. The circumferential transmission seat 31 drives the axially moving seat 29 to rotate circumferentially through the circumferential transmission head 33, and further enables the axially moving seat 29 to slide axially on the front end support rod.

[0040] The rear clamping rod 30 is in a bent linear shape. The rear clamping rod 30 is hinged to the port of the axial moving seat 29 through a third hinge shaft at the bent angle. One end of the rear clamping rod 30 is provided with a second threaded gripping pad 35, and the second threaded gripping pad 35 is a rubber pad to increase the circumferential friction between the second threaded gripping pad 35 and the bolt. The two rear clamping rods 30 are symmetrically distributed on the port of the axial moving seat 29. The other ends of the two rear clamping rods 30 are simultaneously connected with a seventh return spring 36, and a pressing transmission plate is arranged at the free end of the seventh return spring 36. When the axial moving seat 29 moves axially leftward on the front push support rod 27, the pressing transmission plate presses on the bolt head to squeeze the seventh return spring 36, and the seventh return spring 36 squeezes the other end of the rear clamping rod 30 to make the rear clamping rod 30 rotate around the third hinge shaft, so that the second threaded gripping pad 35 tightly clamps on the bolt head to prevent the circumferential rotation of the bolt. Since the second threaded gripping pad 35 tightly clamps on the bolt head, the axial moving seat 29 applies an axial pressure to the front push support rod 27, thereby increasing the circumferential friction between the threaded hole and the external thread. When the circumferential friction between the threaded hole and the external thread is greater than the friction between the nut and the bolt and the circumferential force of the circumferential transmission seat 31 on the circumferential transmission head 33, the bolt and the front push support rod 27 will be circumferentially relatively stationary, that is, the circumferential locking of the bolt is realized. At this time, loosening the front bolt limiting member can also ensure the circumferential stillness of the bolt during the tightening process of the nut.

[0041] Although the embodiments of the present invention have been disclosed as above, it is not limited to the applications listed in the specification and embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the field, additional modifications can be easily made. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to the specific details and the illustrated examples here.

Claims

1. A fastener quick installation device, characterized in that, it includes: A front-end bolt limiter, which includes a limit fixing shell and a front-end bolt gripper. The front-end bolt gripper grips and restricts the rotation of the bolt on the limit fixing shell; A nut rotator, which is arranged on the limit fixing shell and includes a nut rotation transmission member and a nut rotation power member, The nut rotation power member is sleeved outside the nut rotation transmission member to apply pressure to the nut rotation transmission member, so as to push the nut rotation transmission member to drive the buckled nut to rotate in the limit fixing shell; A rear-end bolt limiter, which is arranged on the limit fixing shell. The rear-end bolt limiter includes an auxiliary support rod, a front push support rod and a progressive buckling member. The front push support rod is arranged on the limit fixing shell through the auxiliary support rod. The progressive buckling member circumferentially rotates and axially moves on the front push support rod as the nut rotation transmission member rotates, so that the progressive buckling member grips and restricts the rotation of the bolt; The progressive buckling member includes an axially moving seat, a circumferentially rotating member and a rear-end buckling rod. The axially moving seat is arranged on the front push support rod. The circumferentially rotating member is arranged on the nut transmission pipe. The axially moving seat is in a cylindrical shape. A threaded hole is arranged on the bottom of the cylinder of the axially moving seat. The axially moving seat is sleeved on the front push support rod through the threaded hole. The rear-end buckling rod is in a folded angular shape. The rear-end buckling rod is hinged at the folded angle on the port of the axially moving seat through a third hinge shaft. The two rear-end buckling rods are symmetrically distributed on the port of the axially moving seat; The front-end bolt gripper includes a rear-end power rod, a gripper fixing rod and a front-end gripper rod. The rear-end power rod is hinged on the limit fixing shell at the folded angle through a first hinge shaft. A force-applying rod is arranged at one end of the rear-end power rod. A sliding long through hole is arranged at the other end of the rear-end power rod. One end of the gripper fixing rod is arranged on the limit fixing shell; The front-end gripper rod includes a first front-end gripper rod, a second front-end gripper rod, a first return spring and a second return spring. The first front-end gripper rod is hinged at the folded angle on the other end of the gripper fixing rod through a second hinge shaft. One end of the first front-end gripper rod is embedded in the sliding long through hole through a sliding rotating shaft arranged. The second front-end gripper rod is sleeved on the other end of the first front-end gripper rod through a gripping groove arranged on one end face of it. The first return spring is embedded in the gripping groove. A first threaded gripping pad is arranged at the other end of the second front-end gripper rod. One end of the second return spring is connected to the first front-end gripper rod, and the other end of the second return spring is connected to the limit fixing shell; Two sets of the front-end bolt grippers are symmetrically distributed circumferentially on the limit fixing shell.

2. The fastener quick installation device according to claim 1, characterized in that, The nut rotation transmission member includes a nut transmission pipe, a transmission support plate, a first thrust ball bearing, an adapter pad, and a universal adapter rod. The transmission support plate is fixedly sleeved on the nut transmission pipe. The first thrust ball bearing is sleeved on the nut transmission pipe, and one end face of the first thrust ball bearing is connected to the transmission support plate. The nut transmission pipe is arranged on the limit fixing shell through the first thrust ball bearing, and one end of the nut transmission pipe penetrates through the bottom of the barrel of the limit fixing shell. The adapter pad is fixedly embedded in the nut transmission pipe. The universal adapter rod includes a first universal adapter rod, a second universal adapter rod, and a third return spring. The first universal adapter rod is tubular. One end of the first universal adapter rod is arranged on the adapter pad. The third return spring is embedded in the first universal adapter rod. One end of the second universal adapter rod is embedded in the tube at the other end of the first universal adapter rod; a plurality of the universal adapter rods are evenly and closely arranged on the adapter pad.

3. The fastener quick installation device according to claim 2, characterized in that the nut rotation power member includes a nut rotation sleeve, a one-way blocking member, a power pressing sleeve, and a fourth return spring. The fourth return spring is arranged on the power pressing sleeve; the nut rotation sleeve is fixedly sleeved on the nut transmission pipe. First spiral grooves and second spiral grooves are arranged on the outer circumferential wall of the nut rotation sleeve in a circumferential and uniform distribution on the nut rotation sleeve; one end of the first spiral groove is connected to the other end of the second spiral groove through a first straight groove, and the other end of the first spiral groove is connected to one end of the second spiral groove through a second straight groove; the one-way blocking member includes a blocking sliding pipe, a blocking sliding tongue, and a fifth return spring. One end of the blocking sliding pipe sequentially penetrates through the nut transmission pipe and the nut rotation sleeve, and the blocking sliding pipe communicates with the through position of the first straight groove and the first spiral groove. The fifth return spring is embedded in the other end of the blocking sliding pipe. One end of the blocking sliding tongue is provided with an inclined surface, and the other end of the blocking sliding tongue is embedded in one end of the blocking sliding pipe; two sets of the one-way blocking members respectively correspond to the first straight groove and the second straight groove one by one. Power sliders are arranged on the inner wall of the power pressing sleeve. The two power sliders are evenly distributed in the circumferential direction of the power pressing sleeve. The free end of the power pressing sleeve is sleeved on the nut rotation sleeve, and the two power sliders are respectively embedded in the first spiral groove and the second spiral groove one by one; the fifth return spring is embedded in the bottom of the power pressing sleeve, and the free end of the fifth return spring is connected to the other end surface of the nut transmission pipe.

4. The fastener quick installation device according to claim 3, characterized in that The auxiliary support rod is in the shape of a right-angled rod. One end of the auxiliary support rod is arranged on the mouth of the limit fixing shell cylinder, and the other end of the auxiliary support rod passes through the forward push long through hole arranged on the power pressing sleeve. One end of the forward push support rod is arranged on the other end of the auxiliary support rod, and the axis of the forward push support rod coincides with the axis of the nut transmission tube.

5. The fastener quick installation device according to claim 4, characterized in that, The threaded hole is matched with the external thread on the forward push support rod.

6. The fastener quick installation device according to claim 5, characterized in that, The circumferential rotating member includes a circumferential transmission seat, a circumferential transmission fixing tube, a circumferential transmission head and a sixth return spring. The circumferential transmission seat is in a circular ring shape and is movably embedded on the inner wall of the nut transmission tube. The transmission slider on the outer side surface of the circumferential transmission seat is matched with the transmission chute on the inner wall of the nut transmission tube. A circular groove is arranged on the inner side surface of the circumferential transmission seat, and a plurality of the circular grooves are evenly distributed in the circumferential direction of the circumferential transmission seat. One end of the circumferential transmission fixing tube penetrates through the barrel wall of the axial moving seat, the sixth return spring is embedded in the circumferential transmission fixing tube, and one end of the circumferential transmission head is embedded in the circumferential transmission fixing tube.

7. The fastener quick installation device according to claim 6, characterized in that, One end of the rear end buckling rod is provided with a second threaded gripping pad, and two seventh return springs are simultaneously connected to the other ends of the rear end buckling rods. The free end of the seventh return spring is provided with a pressing transmission plate.

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