CN214271990U - Electric efficient ramming machine - Google Patents
Electric efficient ramming machine Download PDFInfo
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- CN214271990U CN214271990U CN202022997710.XU CN202022997710U CN214271990U CN 214271990 U CN214271990 U CN 214271990U CN 202022997710 U CN202022997710 U CN 202022997710U CN 214271990 U CN214271990 U CN 214271990U
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- ramming machine
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- 230000003139 buffering effect Effects 0.000 claims abstract description 17
- 238000006073 displacement reaction Methods 0.000 claims abstract description 8
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 238000013016 damping Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 9
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 238000005056 compaction Methods 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 description 8
- 238000009434 installation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000035939 shock Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Abstract
The application relates to an electronic high-efficient ramming machine, it includes: a ramming machine body; the tamping plate is arranged at the output end of the tamping machine body; and the level sets up the hand frame on the ramming machine body, the cover is equipped with the spacing ring on the ramming machine body, the vertical connecting rod that is provided with of spacing ring lateral wall, connecting rod bottom horizontally connect has the backup pad, the backup pad bottom is provided with a plurality of gyro wheels, be provided with the spacing subassembly of the vertical direction displacement range of the hand frame of restriction in the backup pad, be provided with the buffering subassembly of the vertical direction shaking force that the buffering hand frame received on the spacing subassembly, wherein, the backup pad top is run through and is seted up the installing port that supplies the ramming machine body to pass. The compaction device has the advantages that the stability of the hand frame can be improved, the operation is convenient, the compaction efficiency can be improved, the consumption of energy and personnel is reduced, and the effects of being beneficial to the environment, green, energy-saving and environment-friendly can be achieved.
Description
Technical Field
The application relates to the technical field of building construction equipment, in particular to an electric efficient tamping machine.
Background
In the building engineering, after pavement foundation is paved, in order to ensure that the foundation is firm, the attached crops of buildings on the foundation are strongly supported, and later settlement is reduced, a tamping machine is needed to tamp the pavement foundation. The ramming refers to tamping the foundation with a rammer, and the ramming machine is a compaction machine for ramming backfill by layers by using the action of impact and impact vibration.
At present, the general structure of the ramming machine comprises: the tamping machine comprises a tamping machine body, a tamping plate and two groups of handles, wherein the tamping machine body is started, the handles of the tamping machine are manually held by hands, and the tamping machine is manually pushed to move so as to carry out tamping operation.
With respect to the related art among the above, the inventors consider that the following drawbacks exist: the tamping machine is often guided through artificial control at the in-process of ramming, makes it can vertically tamp, but the tamping machine can take place incessant jolting at the in-process of ramming, and the phenomenon of arm ache can take place for long-time control tamping machine ramming road surface, is difficult to long-time the use, influences the construction progress, causes certain influence to the environment, remains to further improve this.
SUMMERY OF THE UTILITY MODEL
In order to improve the stability of ramming machine, make things convenient for the staff operation, this application provides an electronic high-efficient ramming machine.
The application provides a pair of electronic high-efficient ramming machine adopts following technical scheme:
an electric high efficiency ramming machine comprising: a ramming machine body; the tamping plate is arranged at the output end of the tamping machine body; and the level set up in hand frame on the rammer body, its characterized in that, the cover is equipped with the spacing ring on the rammer body, the vertical connecting rod that is provided with of spacing ring lateral wall, connecting rod bottom horizontally connect has the backup pad, the backup pad bottom is provided with a plurality of gyro wheels, be provided with the restriction in the backup pad the spacing subassembly of the vertical direction displacement range of hand frame, be provided with the buffering on the spacing subassembly the buffering subassembly of the vertical direction shaking force that hand frame receives, wherein, the backup pad top is run through and is seted up the installing port that supplies the rammer body to pass.
By adopting the technical scheme, the limiting ring has a guiding function, so that the tamping machine body can only vibrate up and down in the tamping process, and the guiding ring is fixed on the supporting plate through the connecting rod, so that the state that the limiting ring is parallel to the ground all the time can be ensured, and the guiding function of the limiting ring on the tamping machine body is ensured; through setting up the removal backup pad that the gyro wheel can be convenient to removal ramming machine body that can be convenient to predetermined ramming point, the range that the vertical direction of hand frame rocked can be restricted to spacing subassembly to improve the stability of ramming machine body, make things convenient for the staff operation, through setting up buffering subassembly, can absorb the vertical to shaking force of the part that hand frame receives, reduce the shaking force of hand frame to the staff, make things convenient for the staff operation. Compared with the related technology, the scheme can improve the stability of the hand frame and facilitate operation, thereby improving the tamping efficiency, reducing the consumption of energy and personnel, being beneficial to the environment, and being green, energy-saving and environment-friendly.
Preferably, the limiting assembly comprises: the two limiting rods are vertically arranged at the top of the supporting plate; the limiting groove penetrates through the side wall of the limiting rod, and the length direction of the limiting groove is consistent with the length direction of the limiting rod; and the limiting openings are formed in one side, close to each other, of the two limiting rods, the penetrating direction of the limiting grooves is consistent with the length direction of the hand-held frame, and the buffering assembly is arranged on the limiting rods.
By adopting the technical scheme, the limit rod, the limit groove and the limit port are arranged, so that the hand-holding frame can conveniently enter the limit groove on the limit rod through the limit port, the hand-holding frame can only move in the limit groove, the vibration displacement range of the hand-holding frame is limited, the stability of the hand-holding frame is improved, and the buffer component can further limit the vibration displacement range of the hand-holding frame.
Preferably, the buffer assembly includes: the two buffer blocks are arranged in the limiting groove and are matched with the limiting groove; the buffer springs are arranged on one sides of the buffer blocks, which are close to each other, and the extending direction of the buffer springs is consistent with the length direction of the limiting rod; the positioning piece is arranged on the buffer spring and the hand frame; and the adjusting piece is arranged in the limit groove and used for adjusting the elasticity of the buffer spring.
Adopt above-mentioned technical scheme, through setting up buffer block and buffer spring, because the spring itself has certain elasticity, and the buffering subassembly sets up to upper and lower two sets of at the spacing groove, can cushion from hand frame top and bottom, can absorb the power that hand frame pushed up and pushed down, with the holistic vibrations power of effective buffering hand frame, convenient operation, can make hand frame and buffer assembly joint through setting up the setting element, guarantee the stability of hand frame on the gag lever post, through setting up the regulating part, can adjust buffer spring's elasticity according to the shock intensity of rammer body, guarantee the cushioning component to the cushioning effect of hand frame.
Preferably, the positioning piece is a positioning piece arranged at one end, far away from the buffer block, of the buffer spring, and a positioning opening matched with the hand-held frame side wall in size is formed in one side, far away from the buffer block, of the positioning piece.
By adopting the technical scheme, the positioning holes in the two positioning blocks can be attached to the top wall and the bottom wall of the hand-held frame, so that the hand-held frame can be quickly connected with the buffer assembly, and meanwhile, the positioning blocks can clamp the hand-held frame in an encircling manner, and the buffer effect of the buffer assembly on the hand-held frame is ensured.
Preferably, the adjusting member includes: the adjusting grooves are formed in two sides of the limiting groove, and the length direction of the adjusting grooves is consistent with the length direction of the limiting rod; the adjusting block is connected in the adjusting groove in a sliding mode and is connected with one side, away from the buffering block, of the buffering block; the adjusting hole is formed in the side wall of the limiting rod and communicated with the adjusting groove; and the adjusting rod is arranged in the adjusting hole and is in threaded connection with the side wall of the adjusting block.
Adopt above-mentioned technical scheme, through setting up the adjustment tank, the regulating block, regulation hole and regulation pole, according to the vibrations power of ramming machine body, can make through rotatory regulation pole and adjust pole and regulating block separation, thereby can slide the regulating block in the adjustment tank, move with promotion buffer block and buffer spring, change the interval between two buffer blocks, can change buffer spring space that stretches under the natural condition, thereby can adjust the buffer capacity of buffer spring in the use, guarantee to the good buffering shock attenuation effect of hand frame.
Preferably, the limiting assemblies are arranged into two groups and are respectively positioned on two sides of the tamping machine body.
By adopting the technical scheme, the two positions on the hand-held frame can achieve the effect of buffering and damping, so that the whole hand-held frame can further buffer and damp, in addition, the hand-held frame keeps balance, the stability of the hand-held frame is improved, and the operation of workers is facilitated.
Preferably, the top of the support plate is provided with a sliding groove, the length direction of which is perpendicular to the length direction of the hand frame, a sliding block connected with the limiting rod is connected in the sliding groove in a sliding manner, the bottom wall of the sliding groove is provided with a plurality of locking holes, and the sliding block is in threaded connection with a locking rod matched with the locking holes.
Adopt above-mentioned technical scheme, through setting up the groove that slides, sliding block, locking hole and locking lever, through sliding block in the groove that slides, can make the gag lever post be close to each other or keep away from each other, make the hand frame can pass in and out spacing mouthful, when needs overhaul, easy to assemble and dismantlement.
Preferably, the limiting ring comprises a first arc-shaped strip and a second arc-shaped strip, the first arc-shaped strip and the second arc-shaped strip are horizontally hinged on the connecting rod, and one ends of the first arc-shaped strip and the second arc-shaped strip, which are far away from the connecting rod, are connected through bolts.
By adopting the technical scheme, when the tamping machine body needs to be overhauled and replaced, the first arc-shaped strip and the second arc-shaped strip can be horizontally rotated conveniently by locking the first arc-shaped strip and the second arc-shaped strip through the unlocking bolt, so that the limiting ring can be opened conveniently, and the tamping machine body can be taken out.
In summary, the present application includes at least one of the following beneficial technical effects:
the limiting ring enables the tamping machine body to vibrate up and down only, so that the stability of the tamping machine body can be improved; the roller can conveniently move the tamping machine body to a preset tamping point; under the effect of gag lever post and spacing groove, can restrict the range that hand frame vertical direction rocked to further improve the stability of ramming machine body, make things convenient for staff's operation, through setting up buffer spring, locating piece, can cushion and absorb the partial vertical to vibrations power that hand frame received, reduce hand frame to staff's vibrations power, make things convenient for staff's operation. Compared with the related technology, the scheme can improve the stability of the hand frame and facilitate the operation, thereby improving the tamping efficiency, reducing the consumption of energy and personnel, being beneficial to the environment, and being green, energy-saving and environment-friendly;
through setting up the adjustment tank, the regulating block, regulation hole and regulation pole, according to the vibrations power of ramming machine body, can make through rotatory regulation pole and regulating block separation, thereby can slide the regulating block in the adjustment tank, move with promotion buffer block and buffer spring, change the interval between two buffer blocks, can change buffer spring and the space that stretches under the natural condition, thereby can adjust the buffer capacity of buffer spring in the use, guarantee to the good buffering shock attenuation effect of hand frame.
Drawings
FIG. 1 is a schematic view of the overall structure of the present application;
FIG. 2 is a cross-sectional view of a stop rod of the present application;
FIG. 3 is a schematic view of the stop collar of the present application;
fig. 4 is a schematic structural diagram of a cushion assembly according to the present application.
Description of reference numerals: 1. a ramming machine body; 11. compacting the plate; 12. a hand frame; 2. a support plate; 20. an installation port; 21. a roller; 22. a connecting rod; 23. a limiting ring; 231. a first arcuate strip; 232. a second arcuate strip; 233. mounting a sheet; 234. a rotating shaft; 235. a bolt; 3. a sliding groove; 31. a sliding block; 32. a locking hole; 33. a locking lever; 34. A limiting rod; 341. a limiting groove; 342. a limiting port; 4. a buffer block; 41. a buffer spring; 42. positioning blocks; 420. positioning the opening; 43. an adjustment groove; 431. an adjusting block; 432. an adjustment hole; 433. and adjusting the rod.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses electronic high-efficient ramming machine. Referring to fig. 1 and 2, the electric efficient ramming machine comprises a ramming machine body 1, a tamping plate 11 and a hand frame 12, wherein the tamping plate 11 is fixed at the output end of the ramming machine body 1, the hand frame 12 in the embodiment is formed by bending a round rod, and the middle part of the hand frame 12 is fixed with the top of the ramming machine body 1. The tamping plate 11 is contacted with the ground, and the operator holds the hand-holding frame 12 and then opens the tamping machine body 1 to pound the tamping plate 11 to compact the ground. In the present embodiment, the ramming machine body 1 is mounted on the support plate 2.
Referring to fig. 1 and 3, a connecting rod 22 is fixed on a position, close to the mounting opening 20, of the top bearing surface of the supporting plate 2, a limiting ring 23 is arranged on one side, close to the mounting opening 20, of the connecting rod 22, and the limiting ring 23 is sleeved outside the tamping machine body 1, so that the tamping machine body 1 can be limited to move only in the vertical direction, and displacement of the tamping machine body 1 caused by vibration is reduced. A certain gap is reserved between the limiting ring 23 and the tamping machine body 1, so that the tamping machine body 1 has a certain displacement space.
The retainer ring 23 in this embodiment includes a first arcuate strip 231 and a second arcuate strip 232. One side that is close to installing port 20 at connecting rod 22 is close to top position level and is fixed with two installation pieces 233, and vertical rotation installs axis of rotation 234 between two installation pieces 233, and first arc strip 231 rotates with second arc strip 232 and installs on axis of rotation 234, and first arc strip 231 can use axis of rotation 234 to rotate as center level between installation piece 233 to can open or close spacing ring 23, make things convenient for the dismouting to ram quick-witted body 1. When the retainer ring 23 is closed, the first arc-shaped bar 231 and the second arc-shaped bar 232 can be locked by the bolt 235 at the end away from the connecting rod 22.
Referring to fig. 1 and 2, four sliding grooves 3 are formed in the top of the support plate 2, wherein the length direction of the sliding grooves 3 is perpendicular to the length direction of the hand frame 12, two sliding grooves 3 form a group, and the two groups of sliding grooves 3 are respectively located on two sides of the ramming machine body 1. The sliding block 31 is connected in the sliding groove 3 in a sliding manner, a plurality of locking holes 32 are formed in the bottom wall of the sliding groove 3, the locking holes 32 are uniformly arranged at intervals along the length direction of the sliding groove 3, the locking rod 33 is connected to the top of the sliding block 31 in a threaded penetrating manner, the size of the locking rod 33 is matched with that of the locking holes 32, and the end part of the locking rod 33 can enter the locking holes 32 in the sliding groove 3 by rotating the locking rod 33, so that the position of the sliding block 31 is fixed.
Each group of sliding grooves 3 on the supporting plate 2 is provided with a limiting component, so that the walking frame 12 can be limited from two sides of the walking frame 12, the displacement amplitude of the walking frame 12 in the vertical direction is limited, the balance of the walking frame 12 is ensured, and the stability of the walking frame 12 is improved.
Spacing subassembly in this embodiment includes: the limiting rod 34, the limiting groove 341 and the limiting opening 342, wherein the limiting rod 34 is a rectangular rod, the limiting rod 34 is vertically fixed on the top wall of the sliding block 31, and the area of the bottom end of the limiting rod 34 is smaller than the area of the top of the sliding block 31. The limiting groove 341 penetrates through the side wall of the limiting rod 34, wherein the length direction of the limiting groove 341 is consistent with the length direction of the limiting rod 34, and the penetrating direction of the limiting groove 341 is consistent with the length direction of the hand frame 12. The stopper opening 342 is formed on the side where the two stopper rods 34 are close to each other.
Before the tamping operation is started, the distance between the two limiting rods 34 is larger than the width of the hand-held frame 12, the two limiting rods 34 are horizontally pushed to approach each other to drive the sliding block 31 to move in the sliding groove 3, so that the hand-held frame 12 can enter the limiting groove 341 on the limiting rods 34 through the limiting opening 342, after the hand-held frame 12 enters the limiting groove 341, the locking rod 33 is rotated to enable the locking rod 33 to enter the locking hole 32, the position of the sliding block 31 can be fixed, and the position of the limiting rods 34 can be fixed.
The buffer assembly is arranged on the limiting rod 34 in the limiting assembly, and can buffer and absorb the vertical vibration force applied to the handrail rod, so that the vibration amplitude of the handrail frame 12 is reduced, and the stability of the whole handrail frame 12 and the whole ramming machine body 1 is improved.
Referring to fig. 2 and 4, the buffer assembly in the present embodiment includes: buffer block 4, buffer spring 41, a positioning element and an adjusting element, wherein the positioning element in the embodiment is a positioning block 42.
The buffer block 4 is provided with two blocks on each limit rod 34, wherein the size of the buffer block 4 is matched with the size of the limit groove 341, and the buffer block 4 can slide back and forth in the limit groove 341. The buffer springs 41 are fixed on the side where the buffer blocks 4 approach each other, wherein the extending direction of the buffer springs 41 is consistent with the length direction of the limiting rod 34, and in the embodiment, the two buffer springs 41 have the tendency of approaching each other. The positioning block 42 is fixed at one end of the buffer spring 41 far away from the buffer block 4, and a positioning opening 420 is formed in one side of the positioning block 42 far away from the buffer block 4, in this embodiment, the positioning opening 420 is an arc-shaped opening, and the size of the positioning opening 420 is matched with the size of the side wall of the hand frame 12.
After the hand-held frame 12 enters the limit groove 341 through the limit opening 342, the hand-held frame 12 can rapidly and accurately enter the limit opening 420 under the mutual matching of the two positioning blocks 42, the two positioning blocks 42 are mutually attached, the side wall of the hand-held frame 12 can be clamped, and the stability of the hand-held frame 12 in the limit groove 341 is improved.
The adjusting piece is arranged on the buffer block 4 and the limiting groove 341, and the elasticity of the buffer spring 41 can be adjusted, so that the buffer effect of the buffer component on the hand-holding frame 12 is ensured. The regulating member in this embodiment includes: an adjustment groove 43, an adjustment block 431, an adjustment hole 432, and an adjustment lever 433.
The adjusting groove 43 is arranged on two side walls of the mounting groove, the length direction of the adjusting groove 43 is consistent with that of the limiting rod 34, the adjusting block 431 is connected in the adjusting groove 43 in a sliding mode, and the adjusting block 431 and the side wall, close to the sliding groove 3, of the buffer block 4 are fixed mutually. The adjusting holes 432 horizontally penetrate through the side walls of the limiting rod 34 adjacent to the limiting groove 341, and the adjusting holes 432 are communicated with the limiting groove 341, in this embodiment, the adjusting holes 432 are multiple and are uniformly arranged at intervals along the side wall of the limiting rod 34. By sliding the adjusting block 431, the distance between the buffer block 4 and the side wall of the hand frame 12 can be adjusted to buffer the natural extension length of the spring 41, so that the elastic force of the spring 41 can be adjusted.
After the position of the buffer block 4 is determined, the adjusting rod 433 can be threaded on the side wall of the adjusting block 431 through the adjusting hole 432, so that the adjusting block 431 which slides vertically can be horizontally locked, and the stability of the buffer spring 41 in the working process can be ensured.
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: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. An electric high efficiency ramming machine comprising: a ramming machine body (1); the tamping plate (11) is arranged at the output end of the tamping machine body (1); and the level set up in hand frame (12) on ramming machine body (1), its characterized in that, the cover is equipped with spacing ring (23) on ramming machine body (1), spacing ring (23) lateral wall is vertical to be provided with connecting rod (22), connecting rod (22) bottom horizontally connect has backup pad (2), backup pad (2) bottom is provided with a plurality of gyro wheels (21), be provided with the restriction on backup pad (2) the spacing subassembly of the vertical direction displacement range of hand frame (12), be provided with the buffering on the spacing subassembly the buffering subassembly of the vertical direction shaking force that hand frame (12) received, wherein, backup pad (2) top is run through and is seted up the confession mount port (20) that ramming machine body (1) passed.
2. An electric high-efficiency ramming machine according to claim 1, wherein said limiting assembly comprises: two limiting rods (34) vertically arranged at the top of the supporting plate (2); a limiting groove (341) which penetrates through the side wall of the limiting rod (34) and the length direction of which is consistent with the length direction of the limiting rod (34); and the limiting openings (342) are formed in one side, close to each other, of the two limiting rods (34), wherein the penetrating direction of the limiting groove (341) is consistent with the length direction of the hand frame (12), and the buffering assembly is arranged on the limiting rods (34).
3. An electric high efficiency tamper according to claim 2 wherein said damping assembly comprises: two buffer blocks (4) which are arranged in the limiting groove (341) and are matched with the limiting groove (341); the buffer springs (41) are arranged on one sides, close to each other, of the buffer blocks (4), and the extending direction of the buffer springs is consistent with the length direction of the limiting rod (34); the positioning piece is arranged on the buffer spring (41) and the hand frame (12); and an adjusting piece arranged in the limit groove (341) and used for adjusting the elastic force of the buffer spring (41).
4. The electric efficient ramming machine according to claim 3, wherein the positioning element is a positioning block (42) disposed at one end of the buffer spring (41) far away from the buffer block (4), and a positioning opening (420) having a size matched with that of the side wall of the hand-held frame (12) is formed at one side of the positioning block (42) far away from the buffer block (4).
5. An electric high-efficiency ramming machine according to claim 3, wherein said adjusting member comprises: the adjusting grooves (43) are formed in two sides of the limiting groove (341) and the length direction of the adjusting grooves is consistent with that of the limiting rod (34); the adjusting block (431) is connected in the adjusting groove (43) in a sliding manner and is connected with one side, which is far away from the buffering block (4), of the adjusting block; the adjusting hole (432) is formed in the side wall of the limiting rod (34) and communicated with the adjusting groove (43); and an adjusting rod (433) which is arranged in the adjusting hole (432) and is in threaded connection with the side wall of the adjusting block (431).
6. The electric high-efficiency ramming machine according to claim 1, wherein the limit assemblies are arranged in two groups, and are respectively positioned at two sides of the ramming machine body (1).
7. The electric efficient ramming machine according to claim 2, wherein a sliding groove (3) with a length direction perpendicular to the length direction of the hand frame (12) is formed in the top of the support plate (2), a sliding block (31) connected with the limiting rod (34) is connected in the sliding groove (3) in a sliding manner, a plurality of locking holes (32) are formed in the bottom wall of the sliding groove (3), and a locking rod (33) matched with the locking holes (32) is connected to the sliding block (31) in a threaded manner.
8. An electric efficient ramming machine according to claim 1, wherein the limiting ring (23) comprises a first arc-shaped strip (231) and a second arc-shaped strip (232), the first arc-shaped strip (231) and the second arc-shaped strip (232) are horizontally hinged on the connecting rod (22), and one ends of the first arc-shaped strip (231) and the second arc-shaped strip (232) far away from the connecting rod (22) are connected through bolts (235).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022997710.XU CN214271990U (en) | 2020-12-12 | 2020-12-12 | Electric efficient ramming machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022997710.XU CN214271990U (en) | 2020-12-12 | 2020-12-12 | Electric efficient ramming machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214271990U true CN214271990U (en) | 2021-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022997710.XU Expired - Fee Related CN214271990U (en) | 2020-12-12 | 2020-12-12 | Electric efficient ramming machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214271990U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118756687A (en) * | 2024-09-05 | 2024-10-11 | 江西旺泰建筑工程有限公司 | Ground leveling device for construction sites |
-
2020
- 2020-12-12 CN CN202022997710.XU patent/CN214271990U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118756687A (en) * | 2024-09-05 | 2024-10-11 | 江西旺泰建筑工程有限公司 | Ground leveling device for construction sites |
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Granted publication date: 20210924 |