CN113653082A - Pre-buried type biliquid slip casting leaking stoppage structure of foundation ditch - Google Patents
Pre-buried type biliquid slip casting leaking stoppage structure of foundation ditch Download PDFInfo
- Publication number
- CN113653082A CN113653082A CN202110877308.4A CN202110877308A CN113653082A CN 113653082 A CN113653082 A CN 113653082A CN 202110877308 A CN202110877308 A CN 202110877308A CN 113653082 A CN113653082 A CN 113653082A
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- threaded
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- baffle
- fixedly connected
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/16—Restraining of underground water by damming or interrupting the passage of underground water by placing or applying sealing substances
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/003—Injection of material
Abstract
The invention discloses a foundation pit embedded type double-liquid grouting leakage stopping structure which comprises a double-pipe mechanism, wherein the double-pipe mechanism comprises a pipe body, a partition plate is vertically and fixedly connected in the pipe body, the upper end of the partition plate is fixedly connected with a fixing plate, a double funnel is fixedly arranged at the upper end of the fixing plate, and two leakage nozzles of the double funnel are respectively positioned on two sides of the partition plate. The invention can not generate a large amount of loss and can not be dispersed by water after grouting, the hardness of slurry condensation is improved, and the plugging effect is better.
Description
Technical Field
The invention relates to the technical field of grouting and plugging, in particular to a foundation pit embedded type double-liquid grouting and plugging structure.
Background
The foundation pit is a soil pit excavated at the design position of the foundation according to the elevation of the foundation and the plane size of the foundation. Before excavation, an excavation scheme is determined according to geological and hydrological data and by combining the conditions of buildings nearby the site, waterproof drainage work is performed, a side slope placing method can be used for people who do not excavate deeply, so that the soil slope is stable, the gradient size is determined according to relevant construction regulations, people who excavate deeply and nearby buildings can use a foundation pit wall supporting method and a concrete spraying wall protecting method, and large foundation pits even adopt methods such as interlocking of underground continuous walls and columnar bored piles and the like to prevent the outside soil layer from collapsing; for those who have no influence on nearby buildings, the underground water level can be reduced by a well point method, and slope releasing open cut is adopted; in cold regions, natural cold freezing method can be adopted for excavation and the like.
The circulation of the inside and outside water layer of foundation ditch can be avoided through setting up of concrete stagnant water wall when the excavation to the foundation ditch, and concrete stagnant water wall generally is formed by the pile pouring of triaxial mixing stake machine, very easily makes the water layer break when the pile of mixing stake machine pile appears great error in concrete work to the production condition of leaking water, this kind of condition can adopt pre-buried type biliquid slip casting leaking stoppage structure to leak stoppage to the department of leaking water.
The existing embedded double-liquid grouting plugging device is used for plugging, a water layer is easy to flow into through a water leakage position after grouting, a large amount of grouting needs to be performed on the device, the grouting is easy to disperse due to the flow of water, and after grouting, the grout is easy to contain more gas, so that the hardness of the grouting after being condensed and hardened is reduced, and the plugging effect is poor.
Therefore, the foundation pit embedded type double-liquid grouting plugging structure is provided for solving the problems.
Disclosure of Invention
The invention aims to solve the problems that grouting is easy to disperse by people and needs a large amount of grouting in the prior art, and the hardness of the grouting after condensation is low, and provides a foundation pit embedded type double-liquid grouting plugging structure.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a pre-buried type biliquid slip casting leaking stoppage structure of foundation ditch, includes double-barrelled mechanism, double-barrelled mechanism includes the body, vertical fixedly connected with baffle in the body, the upper end fixedly connected with fixed plate of baffle, the upper end fixed mounting of fixed plate has two funnels, two spouts of two funnels are located the both sides of baffle respectively.
Preferably, still include separation mechanism, separation mechanism is including setting up the U type groove at the body lower extreme, U type inslot sealing sliding connection has the U template, be equipped with the elevating system who is used for going up and down to the U template on the body, the lower extreme of baffle is equipped with the recess, be equipped with the vibration in the recess, be equipped with in the baffle and be used for carrying out the adjustment mechanism who adjusts vibrating.
Preferably, elevating system includes the annular plate, the lower extreme of annular plate and the upper end fixed connection of body, U type inslot internal rotation is connected with two first threaded rods, two the lower extreme of first threaded rod all with U template threaded connection, two the upper end of first threaded rod all rotates and runs through body and annular plate setting, two connect through the drive mechanism transmission between the first threaded rod.
Preferably, the transmission mechanism comprises two gears, the two gears are respectively and fixedly connected with the upper ends of the two first threaded rods in a coaxial mode, the upper end of the annular plate is rotatably connected with a transmission ring, and tooth grooves meshed with the two gears are formed in the outer side wall of the transmission ring.
Preferably, adjustment mechanism includes the second threaded rod of being connected with the recess inner top rotation, the external screw thread cover of second threaded rod is equipped with the thread piece, thread piece and the sealed sliding connection of recess inside wall, the upper end of vibrating and the lower extreme fixed connection of thread piece, the lower extreme of fixed plate inlays and is equipped with the motor, the upper end of second threaded rod rotate run through the baffle and with the coaxial fixed connection of drive shaft of motor.
Preferably, the vertical section of the driving ring is arranged in an L shape.
Preferably, the anti-run-off device comprises an anti-run-off mechanism, the anti-run-off mechanism comprises a placing groove arranged at the lower end of a pipe body, a plurality of baffle plates are distributed in the placing groove in an arrangement mode, cavities are arranged on the left side and the right side of the pipe body, third threaded rods are connected in the two cavities in a rotating mode, a rotating rod is arranged between the two cavities in a rotating mode and penetrates through the two third threaded rods in a transmission mode, one end of the rotating rod penetrates through the pipe body in a rotating mode and is fixedly connected with a rotating handle in a coaxial mode, a plurality of through holes are formed between the two cavities and the placing groove, wedge plates are connected in the through holes in a rotating mode, two ends of each wedge plate respectively extend into the cavities and the placing groove, a plurality of top plates are sleeved on the outer portions of the third threaded rods in a threaded mode and are connected with the inner side wall of the cavities in a sliding mode, and a plurality of clamping grooves matched with the wedge plates are formed in the two sides of the baffle plates, the top plates are respectively matched with the wedge-shaped plates.
Preferably, the bevel gear set comprises a first bevel gear and a second bevel gear which are meshed with each other, the first bevel gear is coaxially and fixedly connected with the rotating rod, and the second bevel gear is coaxially and fixedly connected with the third threaded rod.
Preferably, one end of the wedge-shaped plate, which is far away from the cavity, is provided with a smooth inclined surface, and the inclined surface faces downwards.
Preferably, the baffle is provided with a plurality of through holes in a penetrating manner.
Compared with the prior art, the invention has the beneficial effects that:
1. by arranging the blocking mechanism and the anti-loss mechanism, the transmission ring is rotated to drive the two gears to rotate, the two gears drive the two first threaded rods to rotate, the two first threaded rods drive the U-shaped plate to lift, the water leakage part of the U-shaped plate can be blocked from the interior of the foundation pit, the rotating rod is driven to rotate by the rotating handle at the moment, the rotating rod drives the two second threaded rods to rotate, the two second threaded rods are opened to drive the plurality of top plates to ascend, the plurality of top plates drive the plurality of wedge-shaped plates to rotate until the plurality of wedge-shaped plates do not limit the baffle plates, the baffle plate positioned at the lowest side drops to the bottom of the foundation pit under the action of self gravity, grouting can be carried out through the double funnels, and after grouting, due to the blocking effect of the baffle plates, the slurry cannot be lost greatly, meanwhile, the condition that grouting is dispersed by water is avoided, and the grouting effect is better;
2. through setting up adjustment mechanism, the slip casting back drives the second threaded rod through the motor and rotates, and the second threaded rod drives the screw block and goes up and down, and the screw block drives the lift that vibrates, opens after the thick liquid is soaked in the inside when vibrating, can improve the hardness after the thick liquid condenses with the air escape in the thick liquid, and the leaking stoppage effect is better.
The invention can not generate a large amount of loss and can not be dispersed by water after grouting, the hardness of slurry condensation is improved, and the plugging effect is better.
Drawings
Fig. 1 is a front structural perspective view of a foundation pit embedded type double-liquid grouting plugging structure provided by the invention;
fig. 2 is a perspective view of a top view structure of a foundation pit embedded type double-liquid grouting leaking stoppage structure provided by the invention;
FIG. 3 is a sectional view taken along line A-A of FIG. 2;
FIG. 4 is an enlarged view at B in FIG. 3;
FIG. 5 is an enlarged view at C of FIG. 3;
FIG. 6 is a structural perspective view of a U-shaped plate in the foundation pit embedded type double-liquid grouting plugging structure provided by the invention;
fig. 7 is a structural perspective view of a transmission ring in the foundation pit embedded type double-liquid grouting plugging structure provided by the invention.
In the figure: the device comprises a pipe body 1, a partition plate 2, a fixing plate 3, a double funnel 4, a U-shaped groove 5, a U-shaped plate 6, a lifting mechanism 7, a groove 8, vibration 9, an adjusting mechanism 10, an annular plate 11, a first threaded rod 12, a transmission mechanism 13, a gear 14, a transmission ring 15, a second threaded rod 16, a threaded block 17, a motor 18, a placement groove 19, a baffle 20, a cavity 21, a third threaded rod 22, a rotating rod 23, a bevel gear set 24, a rotating handle 25, a through hole 26, a wedge-shaped plate 27, a top plate 28, a perforation 29, a clamping groove 30, a first bevel gear 31 and a second bevel gear 32.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-7, a foundation pit pre-buried type double-liquid grouting plugging structure comprises a double-pipe mechanism, the double-pipe mechanism comprises a pipe body 1, a partition plate 2 is vertically and fixedly connected in the pipe body 1, a fixing plate 3 is fixedly connected at the upper end of the partition plate 2, a double-funnel 4 is fixedly installed at the upper end of the fixing plate 3, two discharge spouts of the double-funnel 4 are respectively positioned at two sides of the partition plate 2, it is noted that the double-pipe mechanism also comprises a blocking mechanism, the blocking mechanism comprises a U-shaped groove 5 arranged at the lower end of the pipe body 1, a U-shaped plate 6 is hermetically and slidably connected in the U-shaped groove 5, a lifting mechanism 7 for lifting the U-shaped plate 6 is arranged on the pipe body 1, specifically, the lifting mechanism 7 comprises an annular plate 11, the lower end of the annular plate 11 is fixedly connected with the upper end of the pipe body 1, two first threaded rods 12 are rotatably connected in the U-shaped groove 5, and the lower ends of the two first threaded rods 12 are both in threaded connection with the U-shaped plate 6, the upper ends of the two first threaded rods 12 are both rotated to penetrate through the pipe body 1 and the annular plate 11.
In the invention, two first threaded rods 12 are in transmission connection through a transmission mechanism 13, it is worth mentioning that the transmission mechanism 13 comprises two gears 14, the two gears 14 are respectively and coaxially and fixedly connected with the upper ends of the two first threaded rods 12, the upper end of an annular plate 11 is rotatably connected with a transmission ring 15, it is noted that the vertical section of the transmission ring 15 is arranged in an L shape, the outer side wall of the transmission ring 15 is provided with tooth grooves meshed with the two gears 14, the lower end of a partition plate 2 is provided with a groove 8, a vibration 9 is arranged in the groove 8, an adjusting mechanism 10 for adjusting the vibration 9 is arranged in the partition plate 2, further, the adjusting mechanism 10 comprises a second threaded rod 16 rotatably connected with the top in the groove 8, the external thread of the second threaded rod 16 is sleeved with a threaded block 17, the threaded block 17 is in sealed sliding connection with the inner side wall of the groove 8, the upper end of the vibration 9 is fixedly connected with the lower end of the threaded block 17, the motor 18 is embedded in the lower end of the fixing plate 3, and it should be noted that the motor 18 may be a miniature stepper motor with a model number of HT57, and has been electrically connected to an external power supply, which is not described in detail for the prior art.
In the invention, the upper end of the second threaded rod 16 is rotatably penetrated through the partition plate 2 and coaxially and fixedly connected with a driving shaft of the motor 18, and what needs to be described, the invention further comprises a loss prevention mechanism, the loss prevention mechanism comprises a placing groove 19 arranged at the lower end of the tube body 1, a plurality of baffle plates 20 are distributed in the placing groove 19 in a row, what needs to be described, a plurality of through holes 29 are penetrated through the baffle plates 20, cavities 21 are respectively arranged at the left side and the right side of the tube body 1, third threaded rods 22 are rotatably connected in the two cavities 21, a rotating rod 23 is rotatably penetrated between the two cavities 21, the rotating rod 23 and the two third threaded rods 22 are respectively in transmission connection through a bevel gear set 24, and further, the bevel gear set 24 comprises a first bevel gear 31 and a second bevel gear 32 which are mutually meshed, and the first bevel gear 31 and the second bevel gear 23 are coaxially and fixedly connected.
In the invention, the second bevel gear 32 is coaxially and fixedly connected with the third threaded rod 22, one end of the rotating rod 23 rotatably penetrates through the pipe body 1 and is coaxially and fixedly connected with the rotating handle 25, a plurality of through holes 26 are arranged between the two cavities 21 and the placing groove 19, wedge plates 27 are rotatably connected in the plurality of through holes 26, it should be noted that the wedge plates 27 are rotatably connected with the inner side walls of the through holes 26 through reset bearings, it explains through needs that, the one end that cavity 21 was kept away from to wedge plate 27 is equipped with glossy inclined plane, and the inclined plane orientation is downward, and the both ends of wedge plate 27 extend to cavity 21 and standing groove 19 respectively and set up, and two third threaded rods 22 all the thread bush outward are equipped with polylith roof 28, roof 28 and cavity 21 inside wall sliding connection, the both sides of baffle 20 all be equipped with a plurality ofly with wedge plate 27 assorted draw-in groove 30, polylith roof 28 respectively with polylith wedge plate 27 phase-match.
When the invention is used, the transmission ring 15 is rotated, the transmission ring 15 drives the two gears 14 to rotate, the two gears 14 drive the two first threaded rods 12 to rotate, the two first threaded rods 12 drive the U-shaped plate 6 to lift, the U-shaped plate 6 can block a water leakage part from the interior of a foundation pit, the rotating rod 23 is driven to rotate by the rotating handle 25, the rotating rod 23 drives the two first bevel gears 31 to rotate, the two first bevel gears 31 drive the second bevel gears 32 to rotate, the two second bevel gears 32 drive the two third threaded rods 22 to rotate, the two third threaded rods 22 drive the plurality of top plates 28 to lift, the plurality of top plates 28 drive the plurality of wedge-shaped plates 27 to rotate until the plurality of wedge-shaped plates 27 do not limit the baffles 20, at the moment, the baffle 20 positioned at the lowest side falls to the bottom of the foundation pit under the self gravity, then grouting can be carried out through the double funnels 4, and after grouting is finished, the second threaded rod 16 is driven to rotate by the motor 18, the second threaded rod 16 drives the threaded block 17 to lift, the threaded block 17 drives the vibrator 9 to lift, and when the vibrator 9 is immersed in the slurry, the vibrator is opened, so that air in the slurry can be discharged.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The utility model provides a pre-buried type biliquid slip casting leaking stoppage structure of foundation ditch, includes double-barrelled mechanism, its characterized in that, double-barrelled mechanism includes body (1), vertical fixedly connected with baffle (2) in body (1), the upper end fixedly connected with fixed plate (3) of baffle (2), the upper end fixed mounting of fixed plate (3) has double-funnel (4), two spouts of double-funnel (4) are located the both sides of baffle (2) respectively, separation mechanism is including setting up U type groove (5) at body (1) lower extreme, sealed sliding connection has U template (6) in U type groove (5), be equipped with elevating system (7) that are used for going up and down to U template (6) on body (1), the lower extreme of baffle (2) is equipped with recess (8), be equipped with in recess (8) and vibrate (9), be equipped with in baffle (2) and be used for carrying out adjustment mechanism (10) adjusted vibrate (9), elevating system (7) include annular plate (11), the lower extreme of annular plate (11) and the upper end fixed connection of body (1), U type groove (5) internal rotation is connected with two first threaded rods (12), two the lower extreme of first threaded rod (12) all with U template (6) threaded connection, two the upper end of first threaded rod (12) all rotates and runs through body (1) and annular plate (11) setting, two connect through drive mechanism (13) transmission between first threaded rod (12).
2. The foundation pit embedded type double-liquid grouting leakage blocking structure as claimed in claim 1, wherein the transmission mechanism (13) comprises two gears (14), the two gears (14) are respectively and fixedly connected with the upper ends of the two first threaded rods (12) in a coaxial mode, the upper end of the annular plate (11) is rotatably connected with a transmission ring (15), and tooth grooves meshed with the two gears (14) are formed in the outer side wall of the transmission ring (15).
3. The foundation pit embedded type double-liquid grouting leakage blocking structure as claimed in claim 2, wherein the adjusting mechanism (10) comprises a second threaded rod (16) rotatably connected with the inner top of the groove (8), a threaded block (17) is sleeved on an external threaded sleeve of the second threaded rod (16), the threaded block (17) is connected with the inner side wall of the groove (8) in a sealing and sliding manner, the upper end of the vibrating block (9) is fixedly connected with the lower end of the threaded block (17), a motor (18) is embedded at the lower end of the fixing plate (3), and the upper end of the second threaded rod (16) is rotatably connected with a partition plate (2) and a driving shaft of the motor (18) in a coaxial and fixed manner.
4. The foundation pit embedded type double-liquid grouting leakage stoppage structure as claimed in claim 1, wherein the vertical section of the transmission ring (15) is arranged in an L shape.
5. The foundation pit embedded type double-liquid grouting leakage stoppage structure as claimed in claim 1, further comprising a loss prevention mechanism, wherein the loss prevention mechanism comprises a placement groove (19) arranged at the lower end of the pipe body (1), a plurality of baffle plates (20) are distributed in the placement groove (19) in an arrangement manner, cavities (21) are arranged on the left side and the right side of the pipe body (1), third threaded rods (22) are rotatably connected in the two cavities (21), a rotating rod (23) is rotatably arranged between the two cavities (21) in a penetrating manner, the rotating rod (23) and the two third threaded rods (22) are in transmission connection through a bevel gear set (24), one end of the rotating rod (23) rotatably penetrates through the pipe body (1) and is coaxially and fixedly connected with a rotating handle (25), and a plurality of through holes (26) are arranged between the two cavities (21) and the placement groove (19), it is a plurality of all rotate in through-hole (26) and be connected with wedge plate (27), the both ends of wedge plate (27) extend to cavity (21) and standing groove (19) respectively and set up, two the outer equal thread bush of third threaded rod (22) is equipped with polylith roof (28), roof (28) and cavity (21) inside wall sliding connection, the both sides of baffle (20) all are equipped with a plurality of and wedge plate (27) assorted draw-in grooves (30), the polylith roof (28) respectively with polylith wedge plate (27) phase-match.
6. The foundation pit embedded type double-liquid grouting leakage stoppage structure as claimed in claim 5, wherein the bevel gear set (24) comprises a first bevel gear (31) and a second bevel gear (32) which are meshed with each other, the first bevel gear (31) is coaxially and fixedly connected with the rotating rod (23), and the second bevel gear (32) is coaxially and fixedly connected with the third threaded rod (22).
7. The foundation pit embedded type double-liquid grouting leakage stoppage structure as claimed in claim 5, wherein one end of the wedge-shaped plate (27) far away from the cavity (21) is provided with a smooth inclined surface, and the inclined surface faces downwards.
8. The foundation pit embedded type double-liquid grouting leakage stoppage structure as claimed in claim 1, wherein a plurality of through holes (29) are formed in the baffle (20) in a penetrating manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110877308.4A CN113653082B (en) | 2021-07-31 | 2021-07-31 | Pre-buried type biliquid slip casting leaking stoppage structure of foundation ditch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110877308.4A CN113653082B (en) | 2021-07-31 | 2021-07-31 | Pre-buried type biliquid slip casting leaking stoppage structure of foundation ditch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113653082A true CN113653082A (en) | 2021-11-16 |
| CN113653082B CN113653082B (en) | 2023-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110877308.4A Active CN113653082B (en) | 2021-07-31 | 2021-07-31 | Pre-buried type biliquid slip casting leaking stoppage structure of foundation ditch |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211547734U (en) * | 2019-12-23 | 2020-09-22 | 佛山市平石深基坑工程有限公司 | Pre-buried type biliquid slip casting leaking stoppage structure of foundation ditch |
| CN211626604U (en) * | 2020-05-10 | 2020-10-02 | 盐城市富源油箱有限公司 | Mounting bracket for oil tank liquid level sensor |
| CN212000504U (en) * | 2019-12-16 | 2020-11-24 | 潍坊市筑路机械厂 | Vibration equipment for municipal road construction |
| CN112323808A (en) * | 2020-10-05 | 2021-02-05 | 李霞 | Anti-falling device of shallow foundation pit supporting plate |
| CN112854223A (en) * | 2021-01-06 | 2021-05-28 | 郑州大学 | Portable double-slurry grouting machine and double-slurry grouting construction process |
-
2021
- 2021-07-31 CN CN202110877308.4A patent/CN113653082B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212000504U (en) * | 2019-12-16 | 2020-11-24 | 潍坊市筑路机械厂 | Vibration equipment for municipal road construction |
| CN211547734U (en) * | 2019-12-23 | 2020-09-22 | 佛山市平石深基坑工程有限公司 | Pre-buried type biliquid slip casting leaking stoppage structure of foundation ditch |
| CN211626604U (en) * | 2020-05-10 | 2020-10-02 | 盐城市富源油箱有限公司 | Mounting bracket for oil tank liquid level sensor |
| CN112323808A (en) * | 2020-10-05 | 2021-02-05 | 李霞 | Anti-falling device of shallow foundation pit supporting plate |
| CN112854223A (en) * | 2021-01-06 | 2021-05-28 | 郑州大学 | Portable double-slurry grouting machine and double-slurry grouting construction process |
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| CN113653082B (en) | 2023-02-03 |
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