CN218479141U - Rammer compactor is used in road and bridge construction - Google Patents
Rammer compactor is used in road and bridge construction Download PDFInfo
- Publication number
- CN218479141U CN218479141U CN202222849694.9U CN202222849694U CN218479141U CN 218479141 U CN218479141 U CN 218479141U CN 202222849694 U CN202222849694 U CN 202222849694U CN 218479141 U CN218479141 U CN 218479141U
- Authority
- CN
- China
- Prior art keywords
- hammer
- road
- mount
- bridge construction
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000010276 construction Methods 0.000 title claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 230000003139 buffering effect Effects 0.000 claims abstract description 11
- 230000003020 moisturizing effect Effects 0.000 claims abstract description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- 238000005096 rolling process Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 abstract description 10
- 239000002689 soil Substances 0.000 description 38
- 238000000034 method Methods 0.000 description 12
- 238000003825 pressing Methods 0.000 description 11
- 239000000428 dust Substances 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 7
- 230000000087 stabilizing effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000007667 floating Methods 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Images
Landscapes
- Road Paving Machines (AREA)
Abstract
The utility model relates to a rammer compactor is used in road and bridge construction, it includes the automobile body, be connected with the mount on the automobile body, vertical sliding fit has the hammer stem in the mount, be provided with the drive on the mount the drive assembly that the hammer stem goes up and down, the lower extreme of hammer stem is connected with the hammer plate, be connected with the water tank on the mount, the top of water tank is provided with the moisturizing mouth, still be provided with a plurality of drain pipes on the water tank, every the exit of drain pipe all is connected with the shower head, still be connected with the solenoid valve on the drain pipe, the bottom of hammer plate is provided with the buffering subassembly of hammer plate impact force. The utility model discloses have the effect that improves road bridge construction efficiency.
Description
Technical Field
The utility model belongs to the technical field of road and bridge construction equipment technique and specifically relates to a rammer compactor is used in road and bridge construction.
Background
The uneven backfill needs to be flattened during road construction, so that the transport vehicle can conveniently run during road construction, and the process is finished by one tamping device.
Chinese patent with publication number CN215210969U discloses a road bed tamping device for road and bridge construction, which comprises a stabilizing bottom plate, wherein four corners of the lower surface of the stabilizing bottom plate are fixedly connected with movable wheels for movement, the left and right sides of the upper surface of the stabilizing bottom plate are fixedly connected with push handrails for pushing, the left and right sides of the upper surface of the stabilizing bottom plate are fixedly connected with first balancing weights, and four corners of the upper surface of the stabilizing bottom plate are fixedly connected with stabilizing vertical plates for lifting. This road bed tamping device is used in road and bridge construction, drive annular drive frame and fixed gear and removal rack bar meshing through driving motor and promote first catch bar and second catch bar and drive the second tamping plate and reciprocate and carry out the tamping operation, have better tamping effect to road and bridge, help the efficient to carry out road bed tamping construction to road and bridge more, be convenient for better construction operation, further improved the efficiency of construction.
In view of the above related technologies, the inventor thinks that the tamping device in the prior art is manually pushed by a person, and in the moving process, the first tamping plate is utilized to tamp the road surface filling, however, dust can be excited in the tamping process, so that the road surface condition is deteriorated, and the working process can be influenced by the working of workers in the dust, so that the construction efficiency of road and bridge construction is reduced.
SUMMERY OF THE UTILITY MODEL
In order to improve the efficiency of construction of road bridge construction, this application provides a rammer compactor for road bridge construction.
The application provides a road and bridge construction uses rammer compactor adopts following technical scheme:
the utility model provides a rammer compactor for road and bridge construction, includes the automobile body, be connected with the mount on the automobile body, vertical sliding fit has the hammer stem in the mount, be provided with the drive on the mount the drive assembly that the hammer stem goes up and down, the lower extreme of hammer stem is connected with the hammer block, be connected with the water tank on the mount, the top of water tank is provided with the moisturizing mouth, still be provided with a plurality of drain pipes on the water tank, every the exit of drain pipe all is connected with the shower head, still be connected with the solenoid valve on the drain pipe, the bottom of hammer block is provided with the buffering subassembly of hammer block impact force.
Through adopting above-mentioned technical scheme, the staff control automobile body utilizes drive assembly drive hammer stem lift, drives the hammer block lift to realize the effect of tamped road fill surface. In the process, the water in the water tank is discharged by the worker through controlling the electromagnetic valve, so that the water is sprayed on the surface of the filled soil, and the water can adhere to dust on the surface of the filled soil, so that the possibility of dust floating is reduced when the worker tamps the filled soil, the humidity of the surface of the filled soil can be increased, the filled soil can be better bonded together in the tamping process, the filled soil is firmer, the tamping times of the filled soil are reduced, and the construction efficiency of road and bridge construction is improved.
Optionally, drive assembly is including rotating motor, rolling disc and actuating lever, the rolling disc rotates to be connected the top of mount, it connects to rotate the motor the top of mount, rotate the motor with the rolling disc is connected, the one end of actuating lever rotates to be connected on the rolling disc, and the other end rotates to be connected the top of hammer stem, open at the top of mount has logical groove, the actuating lever is located logical inslot.
Through adopting above-mentioned technical scheme, when needs drive hammer stem goes up and down, the staff starts the rotation motor, makes the rolling disc rotate, and the one end that drives the actuating lever rotates round the rolling disc, and the other end of actuating lever drives the hammer stem displacement, has realized the lift of hammer stem.
Optionally, the surface of the driving rod is connected with a plurality of reinforcing ribs.
Through adopting above-mentioned technical scheme, the strengthening rib is used for improving the structural strength of actuating lever.
Optionally, the hammer rod is a square rod.
Through adopting above-mentioned technical scheme, the hammer stem sets up to the square pole, has reduced the hammer stem and has taken place the pivoted possibility when going up and down, has improved the stability that the hammer stem goes up and down.
Optionally, the fixed plate is connected in the fixing frame, the position department that corresponds the hammer stem on the fixed plate is opened and is dodged the groove, dodge the inslot and be connected with the linking frame, all rotate on the inside wall all around of linking frame and be connected with the tight wheel that supports, support the tight wheel and contradict the hammer stem.
Through adopting above-mentioned technical scheme, when the ram was beaten to the hammer plate and is filled out soil, the hammer stem bore reaction force, along with long-time use, the skew takes place easily at the top of hammer stem. The abutting wheel is used for assisting in supporting the hammer rod, and the possibility of deflection of the top of the hammer rod is reduced.
Optionally, the hammer plate is connected to a plurality of limiting rods on the side wall close to the fixing frame, limiting holes are formed in the positions, corresponding to the limiting rods, of the fixing frame, and the limiting rods penetrate through the limiting holes and are in sliding fit with the limiting holes.
By adopting the technical scheme, the action area of the hammer plate is large, and the hammer plate bears the reaction force along with the excessive tamping and soil filling times, so that the possibility of deviation exists. The limiting rod is matched with the limiting hole in a sliding mode, the hammer plate is further limited to lift, and the possibility of deviation of the hammer plate is reduced.
Optionally, a plurality of reinforcing plates are connected between the hammer plate and the hammer rod.
Through adopting above-mentioned technical scheme, the reinforcing plate strengthens the joint strength between hammer block and the hammer stem on one side, strengthens the structural strength of hammer block body on the other side.
Optionally, the buffering subassembly includes clamp plate, slide bar and buffer spring, the clamp plate sets up under the hammer block, the slide bar is provided with a plurality of roots, the slide bar is vertical to be connected the clamp plate is close to on the lateral wall of hammer block, the hammer block corresponds the position department of slide bar is opened there is the slip hole, the slide bar passes the slip hole, and with slip hole sliding fit, buffer spring is every all overlap on the slide bar and establish one, buffer spring is located the hammer block with between the clamp plate, the slide bar is kept away from the one end of clamp plate is connected with the dog.
Through adopting above-mentioned technical scheme, when needs hammer plate ramming fill out, the hammer plate descends, drives the clamp plate and descends, and the clamp plate is contradicted and is filled out soil, and the hammer plate continues to descend, and buffer spring begins the pressurized, realizes the effect of buffering hammer plate impact force. The hammer plate is used for ramming and filling soil, the hammer plate, the hammer rod and the driving rod bear reaction force, and the joints at the two ends of the driving rod are easy to damage. Through buffering hammer plate impact force to reduce the reaction force that the actuating lever bore, improved the life of actuating lever.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the staff controls the automobile body, utilizes drive assembly drive hammer stem lift, drives the hammer leaf lift to realize the effect of ramming the road surface of filling. In the process, the worker discharges water in the water tank by controlling the electromagnetic valve, so that the water is sprayed on the surface of the filled soil, the water can adhere to dust on the surface of the filled soil, the possibility of dust floating is reduced when the worker tamps the filled soil, the humidity of the surface of the filled soil can be increased, the filled soil can be better bonded together in the tamping process, the filled soil is more compact, the tamping times of the filled soil are reduced, and the construction efficiency of road and bridge construction is improved;
2. when the hammer plate is needed to tamp and fill soil, the hammer plate descends to drive the pressing plate to descend, the pressing plate pushes against and fills soil, the hammer plate continues to descend, the buffer spring starts to be pressed, and the effect of buffering the impact force of the hammer plate is achieved. The hammer plate is used for ramming and filling soil, the hammer plate, the hammer rod and the driving rod bear reaction force, and the joints at the two ends of the driving rod are easy to damage. Through buffering the hammer plate impact force to reduce the reaction force that the actuating lever bore, improved the life of actuating lever.
Drawings
Fig. 1 is a schematic overall structure diagram of a tamping machine for road and bridge construction according to an embodiment of the present application.
Fig. 2 is a schematic structural diagram of a driving assembly and a buffering assembly in the embodiment of the present application.
Fig. 3 is a schematic structural diagram of a water tank and a fixing plate in the embodiment of the application.
Description of reference numerals: 1. a vehicle body; 2. a fixed mount; 21. a top plate; 211. a through groove; 3. a hammer lever; 31. a hammer plate; 311. a limiting rod; 4. a drive assembly; 41. rotating the motor; 42. rotating the disc; 43. a drive rod; 431. reinforcing ribs; 5. a buffer assembly; 51. pressing a plate; 52. a slide bar; 521. a stopper; 53. a buffer spring; 6. a water tank; 61. a water replenishing port; 62. a drain pipe; 63. a shower head; 64. an electromagnetic valve; 7. a fixing plate; 71. an avoidance groove; 72. a connecting frame; 73. a tightening wheel; 8. a reinforcing plate.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses a rammer compactor for road and bridge construction. Referring to fig. 1, a rammer compactor for road and bridge construction includes automobile body 1, vertical fixedly connected with mount 2 on the automobile body 1, and the open-top setting of mount 2, the top fixedly connected with roof 21 of mount 2. The bottom of mount 2 is opened there is the lift groove, and sliding fit has hammer stem 3 in the lift groove, and hammer stem 3 sets up to the square pole, and the bottom fixedly connected with hammer block 31 of hammer stem 3 is provided with drive assembly 4 that the drive hammer stem 3 goes up and down on the roof 21, is provided with the buffering subassembly 5 that cushions the hammer block 31 impact force on the hammer block 31.
Referring to fig. 2 and 3, the fixing frame 2 is fixedly connected with the water tank 6, a water replenishing opening 61 is arranged at the top of the water tank 6, and the water tank 6 is provided with a plurality of water discharging pipes 62, in this embodiment, three water discharging pipes 62 are taken as an example, and correspond to the side walls of the three water tanks 6. A spray header 63 is fixedly connected to the outlet of the drain pipe 62, and an electromagnetic valve 64 is arranged on the drain pipe 62.
The operator controls the vehicle body 1, drives the hammer rod 3 to lift by using the driving component 4, and drives the hammer plate 31 to lift, so as to realize the effect of tamping the road-filling surface. In the process, the worker discharges water in the water tank 6 by controlling the electromagnetic valve 64, so that the water is sprayed on the surface of the filled soil, the water can adhere to dust on the surface of the filled soil, the possibility of dust floating is reduced when the worker tamps the filled soil, the humidity of the surface of the filled soil can be increased, the filled soil can be better bonded together in the tamping process, the filled soil is firmer, the tamping times of the filled soil are reduced, and the construction efficiency of road and bridge construction is improved.
Referring to fig. 2, the driving assembly 4 includes a rotary motor 41, a rotary disk 42, and a driving lever 43. The rotating motor 41 is connected to the top plate 21 through a bolt, the rotating disc 42 is connected to the top plate 21 through a rotating frame, and an output shaft of the rotating motor 41 is fixedly connected with the rotating disc 42. One end of the driving rod 43 is hinged on the side wall of the rotating disc 42 far away from the rotating motor 41, the other end is hinged on the top of the hammer rod 3, a through groove 211 is formed in the position, corresponding to the driving rod 43, of the top plate 21, and the driving rod 43 is located in the through groove 211. When the hammer rod 3 needs to be driven to lift, a worker starts the rotating motor 41 to rotate the rotating disc 42, so that one end of the driving rod 43 is driven to rotate around the rotating disc 42, the other end of the driving rod 43 drives the hammer rod 3 to move, and the lifting of the hammer rod 3 is achieved.
Referring to fig. 2, in addition, in order to improve the structural strength of the driving rod 43, a plurality of ribs 431 are fixedly connected to the surface of the driving rod 43.
Referring to fig. 2 and 3, a fixing plate 7 is horizontally and fixedly connected in the fixing frame 2, an avoiding groove 71 is formed in the position, corresponding to the hammer rod 3, of the fixing plate 7, a connecting frame 72 is fixedly connected to the inner wall of the avoiding groove 71, and the hammer rod 3 penetrates through the connecting frame 72. The inside wall all around of coupling frame 72 all rotates and is connected with a plurality of tight wheels 73 that support, and this embodiment uses two as the example, and two are supported tight wheels 73 and vertically arrange, support tight wheel 73 and contradict hammer stem 3. The tightening wheel 73 serves to assist in supporting the hammer rod 3, reducing the possibility of the top of the hammer rod 3 becoming misaligned.
Referring to fig. 2, in order to reduce the possibility of the deviation of the hammer plate 31, a plurality of limiting rods 311 are vertically and fixedly connected to the top wall of the hammer plate 31, in this embodiment, four limiting rods 311 are taken as an example and are uniformly distributed around the hammer rod 3. The position of the fixing frame 2 corresponding to the limiting rod 311 is provided with a limiting hole, and the limiting rod 311 passes through the limiting hole and is in sliding fit with the limiting hole.
Referring to fig. 2, a plurality of reinforcing plates 8 are connected between the hammer plate 31 and the hammer rod 3, and four reinforcing plates 8 are uniformly distributed around the hammer rod 3 in this embodiment. The reinforcing plate 8 serves to reinforce the connection strength between the weight plate 31 and the weight lever 3, and also serves to reinforce the structural strength of the weight plate 31 body.
Referring to fig. 2, the damping assembly 5 includes a pressing plate 51, a sliding rod 52, and a damping spring 53. The pressing plate 51 is arranged right below the hammer plate 31, the number of the sliding rods 52 is several, four are taken as an example in the embodiment, and the four sliding rods 52 are vertically and fixedly connected to the top wall of the pressing plate 51 and are uniformly distributed around the hammer rods 3. The hammer plate 31 is provided with a sliding hole at a position corresponding to the sliding rod 52, the sliding rod 52 passes through the sliding hole and is in sliding fit with the sliding hole, and a stopper 521 is fixedly connected to one end of the sliding rod 52 far away from the pressing plate 51. One buffer spring 53 is sleeved on each slide rod 52, and the buffer spring 53 is positioned between the hammer plate 31 and the pressure plate 51.
When the hammer plate 31 tamps and fills soil, the hammer plate 31 descends to drive the pressing plate 51 to descend, the pressing plate 51 props against the filled soil, the hammer plate 31 continues to descend, and the buffer spring 53 starts to be pressed, so that the effect of buffering the impact force of the hammer plate 31 is realized. The impact force of the hammer plate 31 is buffered to reduce the reaction force borne by the driving rod 43, so that the service life of the driving rod 43 is prolonged.
The implementation principle of the rammer compactor for road and bridge construction in the embodiment of the application is as follows: when ramming and filling are needed, a worker drives the vehicle body 1, starts the rotating motor 41, enables the rotating disc 42 to rotate, drives one end of the driving rod 43 to rotate around the rotating disc 42, drives the hammer rod 3 to descend by the other end of the driving rod 43, enables the hammer plate 31 to descend, drives the pressing plate 51 to descend, enables the pressing plate 51 to abut against and fill soil, enables the hammer plate 31 to continue to descend, and presses the buffer spring 53, so that the ramming and filling effect is achieved.
The water in the water tank 6 is discharged by the worker through controlling the electromagnetic valve 64, so that the water is sprayed on the surface of the filled soil, the water can adhere to the dust on the surface of the filled soil, the possibility of flying of the dust is reduced when the worker tamps the filled soil, the humidity of the surface of the filled soil can be increased, the filled soil can be better bonded together in the tamping process, the filled soil is firmer, the tamping times of the filled soil are reduced, and the construction efficiency of road and bridge construction is improved.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a road and bridge construction is with rammer compactor, includes automobile body (1), its characterized in that: be connected with mount (2) on automobile body (1), vertical sliding fit has hammer stem (3) in mount (2), be provided with the drive on mount (2) drive assembly (4) that hammer stem (3) go up and down, the lower extreme of hammer stem (3) is connected with hammer block (31), be connected with water tank (6) on mount (2), the top of water tank (6) is provided with moisturizing mouth (61), still be provided with a plurality of drain pipes (62) on water tank (6), every the exit of drain pipe (62) all is connected with shower head (63), still be connected with solenoid valve (64) on drain pipe (62), the bottom of hammer block (31) is provided with the buffering subassembly (5) of hammer block (31) impact force.
2. The tamper for road and bridge construction according to claim 1, wherein: drive assembly (4) are including rotating motor (41), rolling disc (42) and actuating lever (43), rolling disc (42) rotate to be connected the top of mount (2), it connects to rotate motor (41) the top of mount (2), rotate motor (41) with rolling disc (42) are connected, the one end of actuating lever (43) is rotated and is connected on rolling disc (42), and the other end rotates to be connected the top of hammer stem (3), open at the top of mount (2) has logical groove (211), actuating lever (43) are located lead to in groove (211).
3. The tamper for road and bridge construction according to claim 2, wherein: the surface of the driving rod (43) is connected with a plurality of reinforcing ribs (431).
4. The tamper for road and bridge construction according to claim 1, wherein: the hammer rod (3) is a square rod.
5. The tamper for road and bridge construction according to claim 1, wherein: fixed plate (7) are connected in mount (2), correspond on fixed plate (7) the position department of hammer stem (3) is opened and is dodged groove (71), it has connecting frame (72) to dodge groove (71) in-connection, all rotate on the inside wall all around of connecting frame (72) and be connected with and support tight pulley (73), it conflicts to support tight pulley (73) hammer stem (3).
6. The tamper for road and bridge construction according to claim 1, wherein: the hammer plate (31) is close to the side wall of the fixing frame (2) and is connected with a plurality of limiting rods (311), the fixing frame (2) is provided with limiting holes corresponding to the limiting rods (311), and the limiting rods (311) penetrate through the limiting holes and are in sliding fit with the limiting holes.
7. The tamper for road and bridge construction according to claim 1, wherein: a plurality of reinforcing plates (8) are connected between the hammer plate (31) and the hammer rod (3).
8. The tamper for road and bridge construction according to claim 1, wherein: buffer unit (5) include clamp plate (51), slide bar (52) and buffer spring (53), clamp plate (51) set up under hammer block (31), slide bar (52) are provided with a plurality of roots, slide bar (52) vertical connection be in clamp plate (51) are close to on the lateral wall of hammer block (31), hammer block (31) correspond the position department of slide bar (52) is opened there is the slip hole, slide bar (52) pass the slip hole, and with slip hole sliding fit, buffer spring (53) are every all overlap on slide bar (52) and establish one, buffer spring (53) are located hammer block (31) with between clamp plate (51), slide bar (52) are kept away from the one end of clamp plate (51) is connected with dog (521).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222849694.9U CN218479141U (en) | 2022-10-27 | 2022-10-27 | Rammer compactor is used in road and bridge construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222849694.9U CN218479141U (en) | 2022-10-27 | 2022-10-27 | Rammer compactor is used in road and bridge construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218479141U true CN218479141U (en) | 2023-02-14 |
Family
ID=85171466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222849694.9U Active CN218479141U (en) | 2022-10-27 | 2022-10-27 | Rammer compactor is used in road and bridge construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218479141U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118481111A (en) * | 2024-07-09 | 2024-08-13 | 安徽重标建筑工程有限公司 | Foundation leveling equipment for constructional engineering |
-
2022
- 2022-10-27 CN CN202222849694.9U patent/CN218479141U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118481111A (en) * | 2024-07-09 | 2024-08-13 | 安徽重标建筑工程有限公司 | Foundation leveling equipment for constructional engineering |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN218479141U (en) | Rammer compactor is used in road and bridge construction | |
| CN111622054A (en) | Ground leveling and tamping device | |
| CN206956811U (en) | A kind of land leveller | |
| CN221523518U (en) | Foundation tamping device for house building | |
| JP7466261B2 (en) | Drilling Equipment | |
| AU2016277554B2 (en) | Rammed earth forming apparatus | |
| CN116290095B (en) | A ground anti-settlement structure for the periphery of a building and its construction technology | |
| CN110952523A (en) | Compaction vibration system of high-rise building foundation | |
| CN117432465A (en) | A kind of coal mine gangue filling combined tamping mechanism | |
| CN219886779U (en) | Dynamic compaction mechanism for roadbed construction | |
| CN211692501U (en) | Tunnel inverted arch and filling concrete sliding die | |
| CN115341541A (en) | Tube plate combined pile driving device for wharf engineering and driving method thereof | |
| CN110725653A (en) | Piling device for building | |
| CN222275473U (en) | A pile driver for highway construction | |
| CN222456033U (en) | A tamping device for engineering construction | |
| CN219137675U (en) | Static pressure stake machine | |
| CN116397487B (en) | Cement soil roller with rolling angle adjustment function | |
| CN116837783B (en) | Concrete base surface curing means is used in reservoir construction | |
| CN219100758U (en) | Concrete vibrator | |
| CN217630006U (en) | Movable rapid back pressure device for instability of rock and soil mass | |
| CN117822578B (en) | Pile driver capable of adjusting and adapting to terrain for constructional engineering | |
| CN218911399U (en) | Construction engineering pile driver | |
| CN116516941B (en) | Construction device and method for mechanical excavation pile plate wall | |
| CN220847560U (en) | Foundation pile driver convenient to operate | |
| CN222557714U (en) | A device for improving the compaction of roadbed and inspection well edge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |