CN216689350U

CN216689350U - Ramming force adjustable ramming device for building construction

Info

Publication number: CN216689350U
Application number: CN202123096818.2U
Authority: CN
Inventors: 张经纬
Original assignee: China Construction Second Engineering Bureau Co Ltd
Current assignee: China Construction Second Engineering Bureau Co Ltd
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2022-06-07
Anticipated expiration: 2031-12-10

Abstract

The utility model discloses a tamping device with adjustable tamping force for building construction, which comprises a box body, wherein a tamping mechanism is arranged in the box body, the tamping mechanism consists of a bearing plate, a tamping block and an intermittent ejector rod mechanism, and the intermittent ejector rod mechanism can make the bearing plate vertically and linearly reciprocate to realize tamping action; can dismantle ann and have ramming force adjustment mechanism on the bearing plate, ramming force adjustment mechanism includes balancing weight, counter weight clamping mechanism, release mechanism and counter weight position control mechanism, and counter weight clamping mechanism can dismantle ann on the bearing plate with the balancing weight, and counter weight position control mechanism can adjust the position of the vertical direction of balancing weight, and release mechanism can construct the unblock with counter weight clamping and realize balancing weight and bearing plate separation, and the box setting is on movable platform. The device can automatically adjust the tamping force during tamping by means of external equipment, can adapt to tamping work under different ground conditions, improves the applicability of the device, and has simple and compact structure and simple operation.

Description

Ramming force adjustable ramming device for building construction

Technical Field

The utility model relates to the technical field of building construction ramming machines, in particular to a ramming device with adjustable ramming force for building construction.

Background

Ramming means tamping a foundation with a rammer, backfilling indoor soil, making a terrace, and ensuring that the terrace is pressed and does not collapse in the future, so that the tamped soil is a key process for preventing the made terrace from collapsing, and in the building industry, the stability of the foundation is a main control index. However, under the conditions of different ground surfaces or different encountered conditions, the ground pressure of the road roller is not easy to adjust, so that the road roller is almost tamped under the same sinking force, and the bottom surface of the road roller is not tamped tightly in local road conditions, so that the bottom surface of the road roller is sunken in later period.

Disclosure of Invention

The utility model aims to provide a tamping device with adjustable tamping force for building construction, which can automatically adjust the tamping force during tamping by means of external equipment, can adapt to tamping work under different ground conditions, improves the applicability of the device, and has simple and compact structure and simple operation.

In order to realize the purpose, the utility model adopts the following technical scheme:

a tamping device with adjustable tamping force for building construction comprises a box body, wherein a tamping mechanism is arranged in the box body, the tamping mechanism consists of a bearing plate, a tamping block and an intermittent ejector rod mechanism, the bearing plate is connected inside the box body in a sliding mode, the tamping block is fixedly arranged on the bearing plate, and the intermittent ejector rod mechanism can enable the bearing plate to reciprocate linearly in a vertical direction to achieve tamping action; can dismantle ann on the bearing plate and have ramming force adjustment mechanism, ramming force adjustment mechanism includes balancing weight, counter weight clamping mechanism, release mechanism and counter weight position control mechanism, counter weight clamping mechanism can with the balancing weight can be dismantled ann on the bearing plate, counter weight position control mechanism can adjust the position of the vertical direction of balancing weight, release mechanism can construct the unblock with counter weight clamping and realize balancing weight and bearing plate separation, and the box sets up on movable platform.

Preferably, the intermittent ejector rod mechanism comprises an ejector rod motor, a rotating shaft and one or two cams arranged on the rotating shaft, one end of the rotating shaft is fixedly connected with an output shaft of the ejector rod motor, and the cams can jack up the bearing plate and can realize free falling of the bearing plate.

Preferably, but both sides all are equipped with first telescopic link in the box, but first telescopic link one end is ann the bearing plate downside, first telescopic link overcoat have first reset spring, on box and bearing plate were arranged respectively in to first reset spring both ends.

Preferably, the counterweight position adjusting mechanism comprises a motor, a connecting shaft, a reciprocating screw, a nut, a sliding plate, a second telescopic rod and a second return spring, the motor is fixedly arranged on the box body, the connecting shaft is fixedly connected with a motor output shaft, the connecting shaft is connected with the reciprocating screw through a one-way bearing, the nut is sleeved on the reciprocating screw, one end of the sliding plate is fixedly connected with the nut, the other end of the sliding plate is arranged on the box body in a sliding mode, one end of the second telescopic rod is arranged on the sliding plate, the other end of the second telescopic rod is arranged on the counterweight block, the second return spring is sleeved on the outer side of the second telescopic rod, and the second return spring is arranged between the counterweight block and the sliding plate.

Preferably, counter weight clamping mechanism includes that support frame, elastic joint spare, joint groove and extrusion subassembly constitute, the support frame is ann on the bearing plate, extrusion subassembly ann is on the support frame, the joint groove is established on the support frame, elastic joint spare ann is in on the balancing weight, elastic joint spare can pass the joint groove and be located the inside realization balancing weight of support frame and bearing plate be connected, and extrusion subassembly can extrude the realization by the joint groove with the elastic joint spare that is located support frame inside and realize the separation of balancing weight and bearing plate.

Preferably, the elastic connecting piece includes connecting block, first wedge board, second wedge board, elastic connecting piece, the connecting block is fixed ann on the balancing weight, first wedge board with second wedge board slidable ann is on the connecting block, elastic connecting piece sets up between first wedge board and second wedge board.

Preferably, the extrusion assembly comprises a first L-shaped support plate, a second L-shaped support plate, a rotating rod, a third telescopic rod and a third reset spring, one end of the first L-shaped support plate penetrates through the support frame and is fixedly connected with the second L-shaped support plate, the second L-shaped support plate is slidably arranged in the support frame, the rotating rod is hinged to the installation box body, one end of the rotating rod is in contact with the second L-shaped support plate, when the second L-shaped support plate moves forwards, the second L-shaped support plate can push the rotating rod to rotate around a hinged point of the second L-shaped support plate, two ends of the third telescopic rod are respectively arranged on the outer sides of the first L-shaped support plate and the support frame, and the third reset spring is sleeved outside the third telescopic rod and is located between the first L-shaped support plate and the support frame.

Preferably, the unlocking mechanism comprises a first transmission shaft, a second transmission shaft, a first bevel gear, a second bevel gear, a first screw, a telescopic connecting plate and an ejector rod, the first transmission shaft is in power connection with the connecting shaft through belt transmission, the first bevel gear is connected with the first transmission shaft through a one-way bearing, one end of the second transmission shaft is rotatably connected onto the box body, the second bevel gear is arranged on the second transmission shaft, the first bevel gear is meshed with the second bevel gear, a double-rotation-direction thread is arranged on the surface of the second transmission shaft, the first screw is sleeved on the second transmission shaft, one end of the telescopic connecting plate is fixedly arranged on the first screw, the other end of the telescopic connecting plate is in sliding connection onto the bearing plate, and the ejector rod is fixedly arranged on the telescopic connecting plate.

According to the utility model, the counterweight clamping mechanism can realize quick connection and separation of the counterweight block and the bearing plate, and can quickly adjust the tamping force during tamping when in use, so that the counterweight clamping mechanism can adapt to tamping operations under different ground conditions. The unlocking mechanism and the counterweight position adjusting mechanism share one power source, the two mechanisms do not pass through at the same time during working, the same power source is used, the phenomenon that an operator operates by mistake to enable the two mechanisms to work simultaneously to damage the device can be avoided, the number of power devices can be reduced, and the manufacturing cost of the device is reduced. A movable platform is provided to facilitate movement of the device.

Drawings

FIG. 1 is a schematic cross-sectional view of the overall structure of the present invention;

FIG. 2 is a schematic axial view of the overall construction of the present invention;

FIG. 3 is an enlarged view of a portion of the present invention;

in the figure: 1. a box body; 2. a ramming mechanism; 3. a movable platform; 4. a tamping force adjusting mechanism; 5. a balancing weight; 6. a counterweight clamping mechanism; 7. an unlocking mechanism; 8. a counterweight position adjustment mechanism; 20. A bearing plate; 21. tamping blocks; 22. an intermittent ejector rod mechanism; 23. a first extendable rod; 24. a first return spring; 60. a support frame; 61. an elastic clamping piece; 62. a clamping groove; 63. an extrusion assembly; 70. a first transmission shaft; 71. a second drive shaft; 72. a first bevel gear; 73. a second bevel gear; 74. a first nut; 75. a retractable connecting plate; 76. a top rod; 80. a motor; 81. a connecting shaft; 82. a reciprocating screw; 83. a nut; 84. a sliding plate; 85. a second extendable rod; 86. a second return spring; 220. a push rod motor; 221. a rotating shaft; 222. a cam; 611. connecting blocks; 612. a first wedge plate; 613. a second wedge plate; 614. an elastic connecting member; 631. a first L-shaped support plate; 632. a second L-shaped support plate; 633. rotating the rod; 634. a third extendable rod; 635. and a third return spring.

Detailed Description

The utility model will be further explained with reference to the accompanying drawings:

the ramming device for building construction with adjustable ramming force as shown in fig. 1, fig. 2 and fig. 3 comprises a box body 1, wherein the box body 1 is a hollow cubic structure in one embodiment, at least one openable and closable door is arranged on the box body 1 in one embodiment, when the door is opened, an operator can install, debug, maintain and disassemble the internal structure of the box body, an opening is arranged at the bottom of the box body 1, and a ramming mechanism 2 is arranged to extend out of the box body 1 through the opening for ramming. The box 1 passes through fastener fixed mounting on movable platform 3, and movable platform 3 comprises support and walking wheel in one embodiment, and support fixed mounting is on box 1 left and right sides side, and the walking wheel is rotatable to be installed at the support downside, in order to increase the area of contact between wheel and the ground in a preferred embodiment, can select for use the long cylinder as the walking wheel.

The ramming mechanism 2 is arranged inside the box body 1, the ramming mechanism 2 is composed of a bearing plate 20, a ramming block 21 and an intermittent ejector rod mechanism 22, sliding grooves are formed in the left side and the right side inside the box body 1, two ends of the bearing plate 20 can linearly slide in the sliding grooves in a reciprocating manner, in one embodiment, first telescopic rods 23 are fixedly arranged in the sliding grooves formed in the left side and the right side inside the box body 1, one ends of the first telescopic rods 23 are fixedly arranged on the lower side of the bearing plate 20, first reset springs 24 are sleeved outside the first telescopic rods 23, two ends of the first reset springs 24 are arranged between the inner surface of the sliding grooves in the box body 1 and the bearing plate 20, when the bearing plate 20 freely falls down, the phenomena of noise and vibration caused by collision between the bearing plate 20 and the box body 1 can be avoided under the action of the first reset springs 24 and the first telescopic rods 23, and working noise is reduced. The ramming block 21 is a cubic solid metal block, and the upper surface of the ramming block 21 is fixedly connected with the bottom of the bearing plate 20 through a connecting plate. The intermittent jack mechanism 22 includes a jack motor 220, a rotating shaft 221 and one or two cams 222 provided on the rotating shaft 221, in one embodiment, two cams 222 are provided, the push rod motor 220 is fixedly mounted on the left side plate of the case 1 by a fastener, the output shaft of the push rod motor 220 passes through the side plate of the case 1 and is positioned inside the case 1, one end of the rotating shaft 221 is fixedly connected with the output shaft of the push rod motor 220 by a coupler, the other end of the rotating shaft 221 is rotatably connected inside the right side plate of the case 1 by a bearing, the two cams 222 are fixedly mounted on the rotating shaft 221 by a key, when the push rod motor 220 is powered to rotate, the protruding structure on the cam 222 can push up the bearing plate 20 to move upwards, when the cam 222 is out of contact with the bearing plate 20, the bearing plate 20 falls freely under the action of gravity, and the bearing plate 20 drives the tamping block 21 to realize one tamping operation.

Install ramming force adjustment mechanism 4 on bearing plate 20, ramming force adjustment mechanism 4 includes balancing weight 5, counter weight clamping machine structure 6, release mechanism 7 and counter weight position control mechanism 8, and counter weight clamping machine constructs 6 can dismantle ann on bearing plate 20 with balancing weight 5, and the position of 5 vertical directions of balancing weight can be adjusted to counter weight position control mechanism 8, and release mechanism 7 can realize balancing weight 5 and the separation of bearing plate 20 with 6 unblocks of counter weight clamping machine structure.

The counterweight position adjusting mechanism 8 comprises a motor 80, a connecting shaft 81, a reciprocating lead screw 82, a nut 83, a sliding plate 84, a second telescopic rod 85 and a second return spring 86, the motor 80 is fixedly installed on the outer side of the top of the box body 1 through a fastening piece, a hood is arranged on the motor 80 in one embodiment, an output shaft of the motor 80 penetrates through a top plate of the box body 1 and is positioned inside the box body 1, one end of the connecting shaft 81 is fixedly connected with the output shaft of the motor 80 through a coupler, the other end of the connecting shaft 81 is fixedly connected with the reciprocating lead screw 82 through a one-way bearing, the nut 83 is sleeved on the reciprocating lead screw 82, one end of the sliding plate 84 is fixedly connected with the outer side of the nut 83 through welding, a vertical sliding groove is formed in the inner side of a right side plate of the box body 1, and the other end of the sliding plate 84 can slide in the vertical sliding groove. One end of the second telescopic rod 85 is fixedly installed at the bottom of the sliding plate 84, the other end of the second telescopic rod 85 is fixedly installed on the counterweight block 5, the second return spring 86 is sleeved outside the second telescopic rod 85, and the second return spring 86 is arranged between the counterweight block 5 and the sliding plate 20. When the counterweight device works, when the rotation direction of the motor 80 is consistent with the rotatable direction of the one-way bearing arranged between the connecting shaft 81 and the reciprocating screw 82, the one-way bearing cannot transmit the rotation power of the motor 80 to the connecting shaft 81, and the counterweight position adjusting mechanism 8 cannot adjust the position of the counterweight 5; when the rotation direction of the motor 80 is opposite to the rotatable direction of the one-way bearing arranged between the connecting shaft 81 and the reciprocating lead screw 82, the one-way bearing does not rotate, the rotation power of the motor 80 can be transmitted to the connecting shaft 81, the screw 82 linearly slides on the reciprocating lead screw 82 in a reciprocating manner, and at the moment, the counterweight position adjusting mechanism 8 can adjust the position of the counterweight 5 close to or far away from the bearing plate 20.

The counterweight clamping mechanism 6 comprises a support frame 60, an elastic clamping piece 61, a clamping groove 62 and an extrusion assembly 63, in one embodiment, the support frame 60 is of a hollow cubic structure, the bottom surface of the support frame 60 is fixedly installed on the bearing plate 20, the clamping groove 62 is arranged on the top plate of the support frame 60, the clamping groove 62 is a rectangular opening, and the clamping groove 62 communicates the inner cavity of the support frame 60 with the outside. The extrusion assembly 63 includes a first L-shaped support plate 631, a second L-shaped support plate 632, a rotation rod 633, a third telescopic rod 634 and a third return spring 635, wherein one end of the first L-shaped support plate 631 passes through a left side plate of the support frame 60 and is fixedly connected with the second L-shaped support plate 632 through a fastener, the second L-shaped support plate 632 can slide left and right in an inner cavity of the support frame 60, the middle position of the rotation rod 633 is hinged to a rear side plate of the box 1, one end of the rotation rod 633 is in contact with one end of the second L-shaped support plate 632, when the second L-shaped support plate 632 moves right, the second L-shaped support plate 632 can rotate around a hinge point thereof against the rotation rod 633, in one embodiment, one end of the rotation rod 633 is elastically connected with the second L-shaped support plate 632 through a tension spring, and when the second L-shaped support plate 632 moves left, the rotation rod 633 also rotates in a reverse direction under the action of the tension spring. One end of the third telescopic rod 634 is fixedly mounted on the outer side of the left side plate of the supporting frame 60, the other end of the third telescopic rod 634 is fixedly mounted on the first L-shaped support plate 631, the third return spring 635 is sleeved outside the third telescopic rod 634 and is located between the first L-shaped support plate 631 and the supporting frame 60, and the first L-shaped support plate 631 can be always located at the same position under the action of the third return spring 635 and the third telescopic rod 634 without external force. The elastic clamping member 61 comprises a connecting block 611, a first wedge-shaped plate 612, a second wedge-shaped plate 623 and an elastic connecting member 614, the connecting block 611 is fixedly installed on the counterweight 5 through welding, the first wedge-shaped plate 612 and the second wedge-shaped plate 613 are slidably installed at the bottom of the connecting block 611 through a slider, in one embodiment, a slide way is arranged at the bottom of the connecting block 611, the first wedge-shaped plate 612 and the second wedge-shaped plate 613 can slide in the slide way, the elastic connecting member 614 is arranged between the first wedge-shaped plate 612 and the second wedge-shaped plate 613, the middle position of the elastic connecting member 614 is fixedly installed at the middle position of the connecting block 611, the first wedge-shaped plate 612 and the second wedge-shaped plate 613 are in left-right symmetry positions of the connecting block 611 under the condition of no stress, and in one specific embodiment, the elastic connecting member 614 is a spring.

During operation, when the counterweight block 5 and the bearing plate 20 need to be connected, the counterweight block 5 is adjusted downward by the counterweight position adjusting mechanism 8, under the action of gravity, the wedge surfaces of the first wedge plate 612 and the second wedge plate 613 are extruded on the clamping groove 62, because the counterweight block 5 is heavy, the elastic connecting member 614 is extruded by the two wedge surfaces, after the first wedge plate 612 and the second wedge plate 613 pass through the clamping groove 62 and enter the inner cavity of the support frame 60, the first wedge plate 612 and the second wedge plate 613 are not pressed any more, at this time, the elastic connecting member 614 is deformed again, the first wedge plate 612 and the second wedge plate 613 slide to the left and right sides, so that the first wedge plate 612 and the second wedge plate 613 cannot go out through the clamping groove 62, and thus the fixed connection relationship between the counterweight block 5 and the bearing plate 20 is established. When the connection between the counterweight 5 and the bearing plate 20 needs to be cancelled, the counterweight position adjusting mechanism 8 adjusts the position of the counterweight 5 upwards, at this time, the second return spring 86 is pulled, then the first L-shaped fulcrum 631 is pressed by the unlocking mechanism 7, the first L-shaped fulcrum 631 pushes the second L-shaped fulcrum 632 to slide rightward, one end of the second L-shaped fulcrum 632 abuts against the first wedge plate 612, the second L-shaped fulcrum 632 pushes the rotating rod 633 to rotate, one end of the rotating rod 633 abuts against the second wedge plate 613, the first L-shaped fulcrum 631 and the rotating rod 633 cause the first wedge plate 612 and the second wedge plate 613 to compress inward, when the distance between the first wedge plate 612 and the second wedge plate 613 is smaller than the opening size of the catching groove 62, under the action of the tension of the second return spring 86, the first wedge plate 612 and the second wedge plate 613 are made to be pulled out from the connecting groove 62, and the connection relation between the counterweight 5 and the bearing plate 20 is separated.

The unlocking mechanism 7 comprises a first transmission shaft 70, a second transmission shaft 71, a first bevel gear 72, a second bevel gear 73, a first screw nut 74, a telescopic connecting plate 75 and a push rod 76, wherein the first transmission shaft 70 is in power connection with a connecting shaft 81 through belt transmission, in another embodiment, the first transmission shaft 70 can also be in power connection with the connecting shaft 81 through chain transmission or gear transmission, the first bevel gear 72 is fixedly connected with the first transmission shaft 70 through a one-way bearing, the rotatable direction of the one-way bearing connected with the first transmission shaft is opposite to the rotatable direction of the one-way bearing arranged between the connecting shaft 81 and the reciprocating screw 82 in the counterweight position adjusting mechanism 8, namely, the counterweight position adjusting mechanism 8 and the unlocking mechanism 7 have one mechanism and only one mechanism can act when the motor 80 rotates forwards or reversely. One end of the second transmission shaft 71 is rotatably mounted on the box body 1 through a bearing, the second bevel gear 73 is fixedly mounted on the second transmission shaft 71 through a key, the first bevel gear 72 is in meshed transmission with the second bevel gear 73, a double-handed thread is arranged on the surface of the second transmission shaft 71, when the second transmission shaft 71 rotates along one direction, the double-handed thread can enable the first screw nut 74 sleeved on the double-handed thread to linearly reciprocate on the second transmission shaft 71, one end of the telescopic connecting plate 75 is fixedly mounted on the outer surface of the first screw nut 74 through a fastener, a sliding block is arranged on the telescopic connecting plate 75, a sliding groove is arranged on the upper surface of the left side of the bearing plate 20, the telescopic connecting plate 75 can slide left and right on the bearing plate 20 through the sliding block and the sliding groove, the push rod 76 is fixedly mounted on the side surface of the telescopic connecting plate 75, when the second transmission shaft 71 rotates, the push rod 76 can enable the push rod 76 to reciprocate left and right along the axial direction of the second transmission shaft 71 through the first screw nut 74, the ejector rod 76 moves rightwards to push the first L-shaped support plate 631 to move rightwards so as to unlock the counterweight clamping mechanism 6.

The above embodiments are only a few illustrations of the inventive concept and implementation, not limitations thereof, and the technical solutions without substantial changes are still within the scope of protection under the inventive concept.

Claims

1. The utility model provides a ramming force adjustable is ramming device for construction, includes the box, its characterized in that: the box body is internally provided with a ramming mechanism, the ramming mechanism consists of a bearing plate, a ramming block and an intermittent ejector rod mechanism, the bearing plate is connected inside the box body in a sliding manner, the ramming block is fixedly arranged on the bearing plate, and the intermittent ejector rod mechanism can enable the bearing plate to vertically and linearly reciprocate to achieve ramming action; can dismantle ann on the bearing plate and have ramming force adjustment mechanism, ramming force adjustment mechanism includes balancing weight, counter weight clamping mechanism, release mechanism and counter weight position control mechanism, counter weight clamping mechanism can with the balancing weight can be dismantled ann on the bearing plate, counter weight position control mechanism can adjust the position of the vertical direction of balancing weight, release mechanism can construct the unblock with counter weight clamping and realize balancing weight and bearing plate separation, and the box sets up on movable platform.

2. The ramming mass compaction device for building construction with adjustable ramming force according to claim 1, wherein: the intermittent ejector rod mechanism comprises an ejector rod motor, a rotating shaft and one or two cams arranged on the rotating shaft, one end of the rotating shaft is fixedly connected with an output shaft of the ejector rod motor, and the cams can jack up the bearing plate and can realize free falling of the bearing plate.

3. The ramming mass compaction device for building construction according to claim 1 or 2, wherein: but both sides all are equipped with first telescopic link in the box, first telescopic link one end is ann the bearing plate downside, first telescopic link overcoat have a reset spring, on box and bearing plate were arranged in respectively at a reset spring both ends.

4. The ramming mass compaction device for building construction according to claim 1 or 3, wherein: the counterweight position adjusting mechanism comprises a motor, a connecting shaft, a reciprocating screw rod, a screw nut, a sliding plate, a second telescopic rod and a second reset spring, the motor is fixedly arranged on the box body, the connecting shaft is fixedly connected with a motor output shaft, the connecting shaft is connected with the reciprocating screw rod through a one-way bearing, the screw nut is sleeved on the reciprocating screw rod, one end of the sliding plate is fixedly connected with the screw nut, the other end of the sliding plate is arranged on the box body in a sliding mode, one end of the second telescopic rod is arranged on the sliding plate, the other end of the second telescopic rod is arranged on the counterweight block, the second reset spring is sleeved on the outer side of the second telescopic rod, and the second reset spring is arranged between the counterweight block and the sliding plate.

5. The ramming mass compaction device for building construction with adjustable ramming force according to claim 4, wherein: the counterweight clamping mechanism comprises a support frame, an elastic clamping piece, a clamping groove and an extrusion assembly, wherein the support frame is arranged on the bearing plate, the extrusion assembly is arranged on the support frame, the clamping groove is formed in the support frame, the elastic clamping piece is arranged on the counterweight block, the elastic clamping piece can penetrate through the clamping groove to be located inside the support frame to realize the connection of the counterweight block and the bearing plate, and the extrusion assembly can extrude the elastic clamping piece located inside the support frame through the clamping groove to realize the separation of the counterweight block and the bearing plate.

6. The ramming mass compaction device for building construction with adjustable ramming force according to claim 5, wherein: elastic connection spare includes connecting block, first wedge plate, second wedge plate, elastic connection spare, the connecting block is fixed to be settled on the balancing weight, first wedge plate with second wedge plate slidable is settled on the connecting block, elastic connection spare sets up between first wedge plate and second wedge plate.

7. The rammer compaction device for building construction with adjustable ramming force according to claim 5, wherein: the extrusion component comprises a first L-shaped support plate, a second L-shaped support plate, a rotating rod, a third telescopic rod and a third reset spring, wherein one end of the first L-shaped support plate is passed through the support frame and is fixedly connected with the second L-shaped support plate, the second L-shaped support plate is slidably arranged in the support frame, one end of the rotating rod is in contact with the second L-shaped support plate on the rotating rod hinged installation box body, when the second L-shaped support plate moves forwards, the second L-shaped support plate can push the rotating rod to rotate around a hinged point of the rotating rod, two ends of the third telescopic rod are respectively arranged on the outer sides of the first L-shaped support plate and the support frame, and the third reset spring is sleeved outside the third telescopic rod and is positioned between the first L-shaped support plate and the support frame.

8. The ramming mass compaction device for building construction with adjustable ramming force according to claim 4, wherein: the unlocking mechanism comprises a first transmission shaft, a second transmission shaft, a first bevel gear, a second bevel gear, a first screw, a telescopic connecting plate and an ejector rod, wherein the first transmission shaft is in power connection with the connecting shaft through belt transmission, the first bevel gear is connected with the first transmission shaft through a one-way bearing, one end of the second transmission shaft is rotatably connected onto the box body, the second bevel gear is arranged on the second transmission shaft, the first bevel gear is meshed with the second bevel gear, a double-rotation-direction thread is arranged on the surface of the second transmission shaft, the first screw is sleeved on the second transmission shaft, one end of the telescopic connecting plate is fixedly arranged on the first screw, the other end of the telescopic connecting plate is in sliding connection onto the bearing plate, and the ejector rod is fixedly arranged on the telescopic connecting plate.