CN209130108U - Freely falling body restrains buffer to other side - Google Patents

Abstract

The utility model discloses a kind of freely falling bodies to restrain buffer, including the first release sleeve, the second release sleeve and buffer gear to other side；First release sleeve and the setting of the second release sleeve coaxially slide, the top of first release sleeve is provided with the first separating mechanism, the lower part of first release sleeve is provided with pedestal, the top of second release sleeve is provided with footstock, the footstock is located at the lower section of the first separating mechanism, footstock is connected by the first separating mechanism with the first release sleeve, the lower part of second release sleeve is provided with the second separating mechanism, second separating mechanism is located at the lower section of the pedestal, strong rammer hammer is connected by the second separating mechanism with the second release sleeve, the buffer gear is connected between the pedestal of the first release sleeve and the footstock of the second release sleeve.The utility model can prevent from hanging fishing generation acutely shaking in strong rammer unhooking, improve the safety and stationarity of dynamic compaction machinery.

Description

Freely falling body restrains buffer to other side

Technical field

The utility model relates to basement process, strong tamping technology field, restrain more particularly to a kind of freely falling body to other side Buffer.

Background technique

Now in basement process in the compacting of harbour, airport, end of the bridge and similar high fill cubic meter of stone processing, mainly according to Strong rammer bell head is sling up to certain altitude by dynamic compaction machinery, disengages the shock ramming soil for relying on the free-falling of bell head to ground after bell head The method of stone is realized.Bell head after bell head reach a certain height, which is sling, in dynamic compaction machinery is detached from when hanging fishing of dynamic compaction machinery, dynamic compaction machinery Hang fishing and sunpender and will have shaking big several times that could stop.The shaking several times for hanging fishing (hang and be connected with de- fishing device on fishing), which is pounded, is hanging On bar, there is the transverse tube of many sunpenders to pound deformation, or even fall off.Shaking several times for sunpender also has very greatly the frame main beam of tamping machine Damage.Frame main beam just has breaking property damage over time.

Existing reply, which is hung, fishes the method for the pounding glass sunpender just garden the Bang Yipai wood only on sunpender.Time Chang Yeyou garden wood is de- It falls, sunpender transverse tube also has different degrees of bending, some weld bond crackings, and the influence that reply sunpender shakes to tamping machine frame main beam does not have There is good countermeasure, carries out remedial welding after being only broken.When sunpender raises up excessive, also raising subsequent may lead to thing Therefore.There are also raising up excessive due to sunpender, the subsequent drawstring of sunpender excessively loosens, the drawstring at elevator, just jumps out volume due to loosening It raises outside slot, if driver cannot have found in time, next time starts elevator drawstring and breaks, and sunpender just falls ground and leads to a disaster again. These problems directly affect dynamic compaction machinery using safe and service life, be also required to maintenance many times during use.Waste Substantial contribution largely influences the workload of dynamic compaction machinery again.

Utility model content

For the defects in the prior art, the utility model provides a kind of freely falling body and restrains buffer to other side, with It prevents from hanging fishing generation acutely shaking in strong rammer unhooking, improves the safety and stationarity of dynamic compaction machinery.

The utility model provides a kind of freely falling body and restrains buffer, including the first release sleeve, second point to other side From sleeve and buffer gear；First release sleeve and the setting of the second release sleeve coaxially slide, first release sleeve Top be provided with the first separating mechanism, the lower part of first release sleeve is provided with pedestal, second release sleeve Top is provided with footstock, and the footstock is located at the lower section of the first separating mechanism, and footstock is separated by the first separating mechanism with first Sleeve is connected, and the lower part of second release sleeve is provided with the second separating mechanism, and second separating mechanism is located at the bottom The lower section of seat, strong rammer hammer are connected by the second separating mechanism with the second release sleeve, and the buffer gear is connected to the first separation Between the pedestal of sleeve and the footstock of the second release sleeve.

The suspension hook of dynamic compaction machinery is connected with the upper end of first release sleeve of this buffer, drives this buffering when dynamic compaction machinery hangs fishing Device and strong rammer hammer are reach a certain height together when needing to isolate and fall off, the separation of the first separating mechanism, so that the second release sleeve Footstock and the first separating mechanism are detached from, and at this moment, the second release sleeve, the second separating mechanism and strong rammer hammer fall together, dynamic compaction machinery Rebound impact can be generated by unloading power suddenly, and suspension hook can raise up a bit of stroke, the second release sleeve, the second separating mechanism and strong rammer hammer During falling together, buffer gear can play buffering to the whereabouts that the second release sleeve, the second separating mechanism and strong rammer are hammered into shape and make With, simultaneous buffering mechanism can apply a downward pulling force to the first release sleeve, under the action of the containing of the pulling force is offset, The power for fishing rebound to rise is hung just largely to reduce or completely eliminate, after the cushion stroke of buffer gear, the second separation Organizational separation, the strong rammer hammer of dynamic compaction machinery is detached from the second release sleeve at this time.The strong rammer hammer of the application is released by buffer buffering It puts, is disappeared power during release by the buffering of buffer, after strong rammer hammer disengaging, hang fishing and buffer is very steady, avoid and hang It fishes to generate in strong rammer unhooking and acutely shake, improve the safety and stationarity of dynamic compaction machinery.

Further, the buffer gear includes inner cylinder body, annular outer cylinder body, damper piston, annular Oil preserving piston and answers Position spring, the inner cylinder body and annular outer cylinder body are located on the pedestal of first release sleeve together, and inner cylinder body and annular It is provided with the hydraulic oil channel for being connected to respective bottom between outer cylinder body, is provided with throttle valve on the hydraulic oil channel, it is described Damper piston adapts in inner cylinder body, and the annular Oil preserving piston adapts in annular outer cylinder body, and the reset spring is supported on Between the footstock of second release sleeve and annular Oil preserving piston.When the footstock of the second release sleeve and the first separating mechanism are de- From rear, the footstock of the second release sleeve is pressed downward reset spring, and the buffer function of the buffer gear of this one stroke is very small, and second After the footstock of release sleeve is contacted with damper piston, footstock starts to press damper piston, and it is intracorporal that damper piston is pressed down against inner casing Hydraulic oil, hydraulic oil flow into annular outer cylinder body, annular Oil preserving piston compression reseting spring uplink, thus to second by throttle valve The whereabouts of release sleeve, the second separating mechanism and strong rammer hammer generates buffering, when the second separating mechanism and strong rammer are hammered into shape after disengaging, multiple Under the action of the elastic-restoring force of position spring, reset spring pushes up the second release sleeve, so that the top of the second release sleeve Seat resets, meanwhile, reset spring pushes down on annular Oil preserving piston, so that annular Oil preserving piston is intracorporal hydraulic by annular outer shell Oil squeezes back inner cylinder body from hydraulic oil channel, to realize automatically reseting for the buffer.

Further, the throttle valve is adjustable throttling.The weight of the strong rammer hammer of different dynamic compaction machineries is not quite similar, and leads to Adjustable throttling is overregulated, can adapt to the buffer requirements of different dynamic compaction machineries.

Further, the check valve in parallel with the throttle valve, the check valve are additionally provided on the hydraulic oil channel The annular intracorporal hydraulic oil of outer shell is allowed to be back to inner cylinder body.By setting check valve, it is capable of increasing the back-flow velocity of hydraulic oil, To improve the speed that automatically resets of buffer.

Further, first separating mechanism includes the first disengaging pawl, the first separation fastener and first hoisting mechanism, institute It states and is provided with the first disengaging pawl external ear in the circumferential direction of the first release sleeve, the outside of first disengaging pawl is installed in rotation on In first disengaging pawl external ear, the lower part on the inside of first disengaging pawl is provided with the first claw, the top of second release sleeve The first snap ring is provided in the circumferential direction of seat, first snap ring and the first claw are clamped, the top on the inside of first disengaging pawl It is provided with the first L shape step, the first separation fastener is slidably mounted in the first release sleeve, the lower part of the first separation fastener Outer rim offset with the first L shape step, the first hoisting mechanism for promoted it is described first separation fastener.First separation When mechanism needs to separate, the first separation fastener is promoted, so that the first separation fastener is separated with the first disengaging pawl, the first disengaging pawl exists After the constraint of the first separation fastener, the first disengaging pawl rotates down under the traction of the second release sleeve, the first disengaging pawl After turning an angle, the first claw is just detached from the first snap ring, to realize that the footstock of the second release sleeve is separated with first Mechanism is detached from, and when the first separating mechanism needs to be reset, footstock heads into the first claw, while driving the rotation of the first disengaging pawl, the After one disengaging pawl resets, the first separation fastener is dropped down under gravity on the first L shape step, so that the first separation fastener card Firmly the first disengaging pawl, to realize the combination of the footstock and the first separating mechanism of the second release sleeve.

Further, the first hoisting mechanism includes separation pull rod, is equipped with separation rolling on the first separation fastener Wheel, the separation pull rod cross first release sleeve on the downside of separation idler wheel, and separation pull rod is perpendicular to separation idler wheel Axial, the one end and the first release sleeve for separating pull rod are rotatablely connected.When being rotated up separation pull rod, separation idler wheel is drawn in separation It rolls and rises on bar, moved up from band separation fastener.

Further, second separating mechanism includes the second disengaging pawl, the second separation fastener and second hoisting mechanism, institute It states and is provided with the second disengaging pawl external ear in the circumferential direction of the second release sleeve, the outside of second disengaging pawl is installed in rotation on In second disengaging pawl external ear, the lower part on the inside of second disengaging pawl is provided with the second claw, and the top of strong rammer hammer is provided with the Two snap rings, second snap ring and the second claw are clamped, and the top on the inside of second disengaging pawl is provided with the 2nd L shape step, The second separation fastener is slidably mounted in the second release sleeve, the outer rim of the lower part of the second separation fastener and the 2nd L Shape step offsets, and the second hoisting mechanism is for promoting the second separation fastener.The separation and reset of second separating mechanism Principle as the first separating mechanism.

Further, the second hoisting mechanism includes long hole pulling plate, and the long hole pulling plate is along first release sleeve Axially extending with the second release sleeve, long hole pulling plate is vertically provided with long hole, on the outer peripheral surface of the second separation fastener It is provided with the dynamic pin of separation, the dynamic pin of separation is fixed on the lower part of long hole pulling plate, is provided with separation on the outer peripheral surface of the pedestal Rationed marketing, the separation rationed marketing are set in the long hole of long hole pulling plate.When the second release sleeve falls, the second separating mechanism is with second Release sleeve falls together, and the first release sleeve is fixed, and in the cushion stroke of buffer gear, separates rationed marketing along long hole pulling plate Long hole slides, and after buffering, separation rationed marketing slides to the top of the long hole of long hole pulling plate, at this moment, long hole pulling plate and the second separation Fastener is no longer fallen by separation rationed marketing pulling, and the second release sleeve and the second disengaging pawl continue whereabouts a distance, so that second Disengaging pawl separates fastener with second and separates, to realize that strong rammer hammer is automatically disengaged with second release sleeve.

Detailed description of the invention

It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art Attached drawing needed in specific embodiment is briefly described.In all the appended drawings, similar device or part are general It is identified by similar appended drawing reference.In attached drawing, each device or part might not be drawn according to actual ratio.

Fig. 1 is the structural schematic diagram of the utility model embodiment；

Fig. 2 is the A-A cross-sectional view of Fig. 1；

Fig. 3 is the B-B cross-sectional view of Fig. 1；

Fig. 4 is the C-C cross-sectional view of Fig. 1；

Fig. 5 is the installation side view of the long hole pulling plate of the utility model embodiment.

In attached drawing, 1 indicates the first release sleeve；11 indicate the first separating mechanism；111 indicate the first disengaging pawl；112 indicate First separation fastener；113 indicate the first disengaging pawl external ear；114 indicate the first claw；115 indicate the first snap ring；116 indicate the One L shape step；117 indicate separation pull rod；118 indicate separation idler wheel；12 indicate pedestal；2 indicate the second release sleeve；21 indicate Second separating mechanism；211 indicate the second disengaging pawl；212 indicate the second separation fastener；213 indicate the second disengaging pawl external ear；214 Indicate the second claw；215 indicate the second snap ring；216 indicate the 2nd L shape step；217 indicate long hole pulling plate；2171 indicate long hole； 218 indicate the dynamic pin of separation；219 indicate separation rationed marketing；22 indicate footstock；3 indicate buffer gear；31 indicate inner cylinder body；32 indicate Annular outer cylinder body；33 indicate damper piston；34 indicate annular Oil preserving piston；35 indicate reset spring；36 indicate hydraulic oil channel； 37 indicate throttle valve；38 indicate check valve；4 indicate strong rammer hammer.

Specific embodiment

It is described in detail below in conjunction with embodiment of the attached drawing to technical solutions of the utility model.Following embodiment is only For clearly illustrating the technical solution of the utility model, therefore it is only used as example, and cannot be used as a limitation limitation this patent Protection scope.

As Figure 1-Figure 5, the utility model embodiment provides a kind of freely falling body and restrains buffer to other side, including First release sleeve 1, the second release sleeve 2 and buffer gear 3.

Structure of the lower part of first release sleeve 1 using interval setting pulling plate in the circumferential, the top of the second release sleeve 2 Using the structure of interval setting pulling plate in the circumferential, the first release sleeve 1 and the setting of 2 coaxially slide of the second release sleeve, first The top of release sleeve 1 is provided with the first separating mechanism 11, and the lower part of the first release sleeve 1 is provided with pedestal 12, the second separation The top of sleeve 2 is provided with footstock 22, and footstock 22 is located at the lower section of the first separating mechanism 11, and footstock 22 passes through the first separating mechanism 11 are connected with the first release sleeve 1, and the lower part of the second release sleeve 2 is provided with the second separating mechanism 21, the second separating mechanism 21 Positioned at the lower section of pedestal 12, strong rammer hammer 4 is connected by the second separating mechanism 21 with the second release sleeve 2, and buffer gear 3 is connected to Between the pedestal 12 of first release sleeve 1 and the footstock 22 of the second release sleeve 2.

The suspension hook of dynamic compaction machinery is connected with the upper end of first release sleeve 1 of this buffer, drives this slow when dynamic compaction machinery hangs fishing It rushes device and strong rammer hammer 4 is reach a certain height together when needing to isolate and fall off, the separation of the first separating mechanism 11, so that the second separation set The footstock 22 and the first separating mechanism 11 of cylinder 2 are detached from, at this moment, the second release sleeve 2, the second separating mechanism 21 and strong rammer hammer 4 one It rises and falls, dynamic compaction machinery unloads power suddenly can generate rebound impact, and suspension hook can raise up a bit of stroke, the second 2, second points of release sleeve It disembarks structure 21 and during strong rammer hammer 4 falls together, buffer gear 3 can to the second release sleeve 2,21 and of the second separating mechanism The whereabouts of strong rammer hammer 4 works as a buffer, and simultaneous buffering mechanism 3 can apply a downward pulling force to the first release sleeve 1, at this Under the action of the containing of pulling force is offset, hangs the power for fishing rebound to rise and just largely reduce or completely eliminate, buffer gear 3 After cushion stroke, the separation of the second separating mechanism 21, the strong rammer hammer 4 of dynamic compaction machinery and the second release sleeve 2 are detached from this time.This Shen Strong rammer hammer 4 please is disappeared power during release by the buffering of buffer by buffer buffering release, after strong rammer hammers 4 disengagings into shape, is hung Fish and buffer it is very steady, avoid hang fishing strong rammer hammer 4 break off relations when generate acutely shake, improve the safety of dynamic compaction machinery And stationarity.

In the present embodiment, buffer gear 3 is living including inner cylinder body 31, annular outer cylinder body 32, damper piston 33, annular oil storage Plug 34 and reset spring 35, inner cylinder body 31 and annular outer cylinder body 32 are located on the pedestal 12 of the first release sleeve 1 together, and inner casing It is provided with the hydraulic oil channel 36 for being connected to respective bottom between body 31 and annular outer cylinder body 32, is provided on hydraulic oil channel 36 Throttle valve 37, damper piston 33 adapt in inner cylinder body 31, and annular Oil preserving piston 34 adapts in annular outer cylinder body 32, reset bullet Spring 35 is supported between the footstock 22 of the second release sleeve 2 and annular Oil preserving piston 34.When the second release sleeve 2 footstock 22 with After first separating mechanism 11 is detached from, the footstock 22 of the second release sleeve 2 is pressed downward reset spring 35, the buffer gear of this one stroke 3 buffer function is very small, and after the footstock 22 of the second release sleeve 2 is contacted with damper piston 33, footstock 22 starts pressure buffering and lives Plug 33, damper piston 33 are pressed down against the hydraulic oil in inner cylinder body 31, and hydraulic oil flows into annular outer cylinder body 32 by throttle valve 37, Annular 34 compression reseting spring of Oil preserving piston, 35 uplink, thus to the second release sleeve 2, the second separating mechanism 21 and strong rammer hammer 4 Whereabouts generate buffering, after the second separating mechanism 21 is detached from strong rammer hammer 4, in the effect of the elastic-restoring force of reset spring 35 Under, reset spring 35 pushes up the second release sleeve 2, so that the footstock 22 of the second release sleeve 2 resets, meanwhile, reset bullet Spring 35 pushes down on annular Oil preserving piston 34, so that annular Oil preserving piston 34 is by the hydraulic oil in annular outer cylinder body 32 from hydraulic oil Inner cylinder body 31 is squeezed back in channel 36, to realize automatically reseting for the buffer.The throttle valve 37 of the present embodiment is adjustable throttling 37, the weight of the strong rammer hammer 4 of different dynamic compaction machineries is not quite similar, and by adjusting adjustable throttling 37, can adapt to different strong rammers The buffer requirements of machine.In addition, being additionally provided with the check valve 38 in parallel with throttle valve 37 on hydraulic oil channel 36, check valve 38 allows Hydraulic oil in annular outer cylinder body 32 is back to inner cylinder body 31, by the way that check valve 38 is arranged, is capable of increasing the reflux speed of hydraulic oil Degree, to improve the speed that automatically resets of buffer.

In the present embodiment, the first separating mechanism 11 includes that the first disengaging pawl 111, first separation fastener 112 and first mentions Mechanism is risen, the first disengaging pawl external ear 113 is provided in the circumferential direction of the first release sleeve 1, the outside of the first disengaging pawl 111 can be rotated Ground is mounted in the first disengaging pawl external ear 113, and the lower part of 111 inside of the first disengaging pawl is provided with the first claw 114, the second separation The first snap ring 115 is provided in the circumferential direction of the footstock 22 of sleeve 2, the first snap ring 115 and the first claw 114 are clamped, the first separation The top of 111 inside of pawl is provided with the first L shape step 116, and the first separation fastener 112 is slidably mounted in the first release sleeve 1, The outer rim of the lower part of first separation fastener 112 offsets with the first L shape step 116.First hoisting mechanism is for promoting the first separation Fastener 112, specifically, first hoisting mechanism include separation pull rod 117, are equipped with separation idler wheel on the first separation fastener 112 118, separation pull rod 117 crosses the first release sleeve 1 from the downside of separation idler wheel 118, and separation pull rod 117 is perpendicular to separation idler wheel 118 axial direction, the one end and the first release sleeve 1 for separating pull rod 117 are rotatablely connected, when being rotated up separation pull rod 117, separation Idler wheel 118 rolls and rises on separation pull rod 117, moves up from band separation fastener.

When first separating mechanism 11 needs to separate, the first separation fastener 112 is promoted, so that the first separation fastener 112 and the The separation of one disengaging pawl 111, after the constraint that the first disengaging pawl 111 separates fastener 112 first, the first disengaging pawl 111 is the It is rotated down under the traction of two release sleeves 2, after the first disengaging pawl 111 turns an angle, the first claw 114 just blocks with first Ring 115 is detached from, to realize that the footstock 22 of the second release sleeve 2 and the first separating mechanism 11 are detached from, when the first separating mechanism 11 When needing to be reset, footstock 22 heads into the first claw 114, while driving the rotation of the first disengaging pawl 111, and the first disengaging pawl 111 resets Afterwards, the first separation fastener 112 is dropped down under gravity on the first L shape step 116, so that the first separation fastener 112 blocks First disengaging pawl 111, to realize the combination of the footstock 22 and the first separating mechanism 11 of the second release sleeve 2.

In the present embodiment, the second separating mechanism 21 includes that the second disengaging pawl 211, second separation fastener 212 and second mentions Mechanism is risen, the second disengaging pawl external ear 213 is provided in the circumferential direction of the second release sleeve 2, the outside of the second disengaging pawl 211 can be rotated Ground is mounted in the second disengaging pawl external ear 213, and the lower part of 211 inside of the second disengaging pawl is provided with the second claw 214, strong rammer hammer 4 Top be provided with the second snap ring 215, the second snap ring 215 and the second claw 214 are clamped, the top of 211 inside of the second disengaging pawl It is provided with the 2nd L shape step 216, the second separation fastener 212 is slidably mounted in the second release sleeve 2, the second separation fastener 212 The outer rim of lower part offset with the 2nd L shape step 216.Second hoisting mechanism is for promoting the second separation fastener 212, specifically, Second hoisting mechanism includes long hole pulling plate 217, and long hole pulling plate 217 prolongs along the axial direction of the first release sleeve 1 and the second release sleeve 2 It stretches, long hole pulling plate 217 is vertically provided with long hole 2171, and the dynamic pin of separation is provided on the outer peripheral surface of the second separation fastener 212 218, the lower part that dynamic pin 218 is fixed on long hole pulling plate 217 is separated, separation rationed marketing 219, separation are provided on the outer peripheral surface of pedestal 12 Rationed marketing 219 is set in the long hole 2171 of long hole pulling plate 217.

The principle of separation and the reset of second separating mechanism 21 does not repeat here as the first separating mechanism 11.When When second release sleeve 2 falls, the second separating mechanism 21 falls with the second release sleeve 2, and the first release sleeve 1 is fixed, In the cushion stroke of buffer gear 3, separation rationed marketing 219 is slided along the long hole 2171 of long hole pulling plate 217, after buffering, point Top from the long hole 2171 that rationed marketing 219 slides to long hole pulling plate 217, at this moment, long hole pulling plate 217 and the second separation 212 quilt of fastener The separation pulling of rationed marketing 219 is no longer fallen, and the second release sleeve 2 and the second disengaging pawl 211 continue whereabouts a distance, so that second Disengaging pawl 211 separates fastener 212 with second and separates, to realize that strong rammer hammer 4 is automatically disengaged with second release sleeve 2.

Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations； Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should manage Solution: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of skills Art feature is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution the utility model The range of each embodiment technical solution should all cover in the claim of the utility model and the range of specification.

Claims (8)

1. a kind of freely falling body to other side restrain buffer, it is characterised in that: including the first release sleeve, the second release sleeve and Buffer gear；First release sleeve and the setting of the second release sleeve coaxially slide, the top of first release sleeve is set It is equipped with the first separating mechanism, the lower part of first release sleeve is provided with pedestal, the top setting of second release sleeve There is footstock, the footstock is located at the lower section of the first separating mechanism, and footstock is connected by the first separating mechanism with the first release sleeve, The lower part of second release sleeve is provided with the second separating mechanism, and second separating mechanism is located at the lower section of the pedestal, Strong rammer hammer is connected by the second separating mechanism with the second release sleeve, and the buffer gear is connected to the pedestal of the first release sleeve Between the footstock of the second release sleeve.

2. freely falling body according to claim 1 restrains buffer to other side, it is characterised in that: the buffer gear includes Inner cylinder body, annular outer cylinder body, damper piston, annular Oil preserving piston and reset spring, the inner cylinder body and annular outer cylinder body are coaxial The liquid for being connected to respective bottom is provided on the pedestal of first release sleeve, and between inner cylinder body and annular outer cylinder body Pressure oil passage is provided with throttle valve on the hydraulic oil channel, and the damper piston adapts in inner cylinder body, the annular oil storage Piston adapts in annular outer cylinder body, and the reset spring is supported on the footstock and annular Oil preserving piston of second release sleeve Between.

3. freely falling body according to claim 2 restrains buffer to other side, it is characterised in that: the throttle valve is adjustable Throttle valve.

4. freely falling body according to claim 2 or 3 restrains buffer to other side, it is characterised in that: the hydraulic oil is logical The check valve in parallel with the throttle valve is additionally provided on road, the check valve allows the annular intracorporal hydraulic oil of outer shell to be back to Inner cylinder body.

5. freely falling body according to claim 1 or 2 restrains buffer to other side, it is characterised in that: first separation Mechanism includes the first disengaging pawl, the first separation fastener and first hoisting mechanism, is provided in the circumferential direction of first release sleeve First disengaging pawl external ear, the outside of first disengaging pawl are installed in rotation in the first disengaging pawl external ear, and described first point Lower part on the inside of pawl is provided with the first claw, the first snap ring, institute are provided in the circumferential direction of the footstock of second release sleeve The first snap ring and the first claw to be stated to be clamped, the top on the inside of first disengaging pawl is provided with the first L shape step, and described first point It being slidably mounted in the first release sleeve from fastener, the outer rim of the lower part of the first separation fastener offsets with the first L shape step, The first hoisting mechanism is for promoting the first separation fastener.

6. freely falling body according to claim 5 restrains buffer to other side, it is characterised in that: the first hoisting mechanism Including separating pull rod, separation idler wheel is installed, the downside of the separation pull rod from separation idler wheel is horizontal on the first separation fastener First release sleeve is worn, separation pull rod separates one end and the first release sleeve of pull rod perpendicular to the axial direction of separation idler wheel Rotation connection.

7. freely falling body according to claim 1 or 2 restrains buffer to other side, it is characterised in that: second separation Mechanism includes the second disengaging pawl, the second separation fastener and second hoisting mechanism, is provided in the circumferential direction of second release sleeve Second disengaging pawl external ear, the outside of second disengaging pawl are installed in rotation in the second disengaging pawl external ear, and described second point Lower part on the inside of pawl is provided with the second claw, the top of strong rammer hammer is provided with the second snap ring, second snap ring and the second card Pawl clamping, the top on the inside of second disengaging pawl are provided with the 2nd L shape step, and the second separation fastener is slidably mounted on the In two release sleeves, the outer rim of the lower part of the second separation fastener offsets with the 2nd L shape step, and the second hoisting mechanism is used Fastener is separated in promoting described second.

8. freely falling body according to claim 7 restrains buffer to other side, it is characterised in that: the second hoisting mechanism Including long hole pulling plate, axially extending, long hole pulling plate of the long hole pulling plate along first release sleeve and the second release sleeve It is vertically provided with long hole, the dynamic pin of separation is provided on the outer peripheral surface of the second separation fastener, the dynamic pin of separation is fixed on The lower part of long hole pulling plate, separation rationed marketing is provided on the outer peripheral surface of the pedestal, and the separation rationed marketing is set to the length of long hole pulling plate In hole.