CN114776019B - Waterproof post-pouring strip structure construction device of overlength underground structure - Google Patents
Waterproof post-pouring strip structure construction device of overlength underground structure Download PDFInfo
- Publication number
- CN114776019B CN114776019B CN202210347603.3A CN202210347603A CN114776019B CN 114776019 B CN114776019 B CN 114776019B CN 202210347603 A CN202210347603 A CN 202210347603A CN 114776019 B CN114776019 B CN 114776019B
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- Prior art keywords
- vibrating
- box body
- component
- vibration
- underground structure
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/06—Solidifying concrete, e.g. by application of vacuum before hardening
- E04G21/08—Internal vibrators, e.g. needle vibrators
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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
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
- F16F15/0232—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means with at least one gas spring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/046—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means using combinations of springs of different kinds
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
Abstract
The invention is suitable for the technical field of underground structure construction equipment, and provides a waterproof post-pouring strip structure construction device of an ultra-long underground structure; comprising the following steps: a case; a vibrating member provided on the case; the vibrating component is used for vibrating the concrete; the driving component is arranged on the box body and is in transmission connection with the vibrating component, and the driving component is driven to be in soft transmission with the vibrating component; thus, the vibration of the vibrating component is isolated from the driving component, and the driving component provides power for the vibrating component; and the damping part is arranged between the box body and the vibrating part and used for reducing the vibration of the box body in the process. The invention can effectively prolong the service life of the driving part and has long service life.
Description
Technical Field
The invention relates to the technical field of underground structure construction equipment, in particular to a waterproof post-pouring strip structure construction device of an ultra-long underground structure.
Background
The post-cast strip is a secondary construction area reserved at the corresponding positions of the foundation slab, the wall and the beam according to the design or construction specification requirements in order to prevent harmful cracks possibly generated due to uneven self shrinkage or uneven settlement of a cast-in-situ reinforced concrete structure in building construction. The post-cast strip structure comprises a primary casting layer (a left casting layer and a right casting layer), a secondary casting layer and a cushion layer positioned below the first casting layer and the secondary casting layer.
The post-cast strip structure needs to vibrate concrete in the construction process, equipment vibration of equipment in the prior art is larger in the use process, a motor on the equipment is easy to damage, the service life is short, and the technical problem is solved by the waterproof post-cast strip structure construction device of the ultra-long underground structure.
Disclosure of Invention
The invention aims to provide a waterproof post-pouring strip structure construction device of an ultra-long underground structure, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a waterproof post-cast strip structure construction device of an ultra-long underground structure, comprising: a case;
a vibrating member provided on the case; the vibrating component is used for vibrating the concrete;
the driving component is arranged on the box body and is in transmission connection with the vibrating component, and the driving component is driven to be in soft transmission with the vibrating component; thus, the vibration of the vibrating component is isolated from the driving component, and the driving component provides power for the vibrating component;
and the damping part is arranged between the box body and the vibrating part and used for reducing the vibration of the box body in the process.
As a further scheme of the invention: the vibrating component comprises a box body and a crankshaft rotatably arranged in the box body, and the crankshaft is connected with a plurality of vibrating rods for vibrating.
As still further aspects of the invention: one end of the vibrating rod is rotatably arranged on the connecting rod, and the connecting rod is rotatably connected to the crankshaft.
As still further aspects of the invention: the driving part comprises a driving motor and a speed reducer which are fixedly arranged on the box body, and the driving motor is in transmission connection with the speed reducer.
As still further aspects of the invention: the damping component comprises a connecting rod connected to the box body and a mounting seat mounted on the box body, and the connecting rod is arranged in the mounting seat in a sliding manner through a piston; the outer side of the connecting rod is provided with a plurality of inclined rods in an array manner, two ends of each inclined rod are respectively rotatably arranged on the connecting rod and the rack, and the racks are arranged on the mounting seats on the box body in a left-right sliding manner; the mounting seat is provided with a plurality of elastically mounted gears in an array manner, and the racks are meshed with the gears.
As still further aspects of the invention: the gear is rotatably arranged on the box body, a first elastic piece is further arranged on the gear, and two ends of the first elastic piece are respectively and fixedly arranged on the gear and the box body.
As still further aspects of the invention: the mounting seat is internally provided with a second elastic piece, and two ends of the second elastic piece are respectively and fixedly arranged on the mounting seat and the piston.
As still further aspects of the invention: the piston and the mounting seat are enclosed to form a damping air cavity, and damping gas is stored in the damping air cavity.
As still further aspects of the invention: the vibration-damping air cavity is characterized in that a plurality of air cylinders are arranged on the outer side array of the vibration-damping air cavity and are communicated with the inside of the vibration-damping air cavity through communication ports, piston rods are arranged in the air cylinders, the piston rods are connected to the racks, and the vibration-damping air cavity is located below the pistons.
Compared with the prior art, the invention has the beneficial effects that: the vibration reducing component is arranged between the box body and the vibrating component, so that vibration between the box body and the vibrating component can be reduced, vibration transmitted to the box body by the vibrating component is reduced, meanwhile, soft transmission is performed between the driving component and the vibrating component, the vibration of the vibrating component is not transmitted to the driving component, and therefore the service life of the driving component can be effectively prolonged, and the service life is long.
Drawings
Fig. 1 is a schematic structural view of a construction device for a waterproof post-cast strip structure of an ultra-long underground structure.
Fig. 2 is an enlarged view at a in fig. 1.
Fig. 3 is an enlarged view at B in fig. 2.
Fig. 4 is a schematic diagram of the installation structure of gears in the construction device of the waterproof post-pouring strip structure of the ultra-long underground structure.
Fig. 5 is a schematic structural view of a rack in a construction device for a waterproof post-cast strip structure of an ultra-long underground structure.
In the figure: 1-box, 2-bent axle, 3-driving part, 4-shock attenuation part, 5-vibration part, 6-driving motor, 7-reduction gear, 8-movable roller, 9-connecting rod, 10-vibration rammer, 11-box, 12-mount pad, 13-connecting rod, 14-diagonal rod, 15-rack, 16-slide bar, 17-mount pad, 18-gear, 19-piston, 20-cylinder, 21-piston rod, 22-intercommunication mouth, 23-shock attenuation air chamber, 24-first elastic component, 25-second elastic component.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1, in embodiment 1 of the present invention, a construction apparatus for a waterproof post-cast strip structure of an ultra-long underground structure according to an embodiment of the present invention includes: a case 1;
a vibrating member 5 provided on the case 1; the vibrating component 5 is used for vibrating the concrete;
the driving component 3 is arranged on the box body 1 and is in transmission connection with the vibrating component 5, and drives the driving component 3 and the vibrating component 5 to be in soft transmission; thus, the vibration of the vibrating component 5 is isolated from the driving component 3, and the driving component 3 provides power for the vibrating component 5;
and a damping part 4 arranged between the box body 1 and the vibrating part 5, wherein the damping part 4 is arranged to reduce the vibration of the box body 1 in the process.
Specifically, the vibration reducing component 4 is arranged between the box body 1 and the vibrating component 5, so that vibration between the box body 1 and the vibrating component 5 can be reduced, vibration transmitted to the box body 1 by the vibrating component 5 is reduced, meanwhile, soft transmission is carried out between the driving component 3 and the vibrating component 5, and vibration of the vibrating component 5 is not transmitted to the driving component 3, so that the service life of the driving component 3 can be effectively prolonged, and the service life is long.
Example 2
Referring to fig. 1 to 5, the main difference between the present embodiment 2 and embodiment 1 is that the vibrating member 5 includes a housing 11 and a crankshaft 2 rotatably disposed inside the housing 11, and the crankshaft 2 is connected with a plurality of vibrating bars 10 for vibrating, so that the setting of the vibrating member 5 is achieved, and the housing 11 supports the crankshaft 2. The vibrating bar 10 is used for vibrating concrete.
As shown in fig. 1, as a preferred embodiment of the present invention, in order to enable the crankshaft 2 to drive the vibrating rod 10 to reciprocate up and down, one end of the vibrating rod 10 is rotatably mounted on the connecting rod 9, and the connecting rod 9 is rotatably connected to the crankshaft 2, so that the vibrating rod 10 can be driven to reciprocate up and down during rotation of the crankshaft 2, and the vibrating rod 10 is disposed through the guide hole of the case 11, thereby guiding the movement of the vibrating rod 10.
The bottom of the box body 1 is provided with a movable roller 8 for supporting equipment.
As shown in fig. 1, as a preferred embodiment of the present invention, the driving part 3 includes a driving motor 6 and a decelerator 7 fixedly installed on the case 1, and the driving motor 6 is drivingly connected with the decelerator 7. The output of reduction gear 7 is connected on bent axle 2, bent axle 2 tip is provided with first connection pad, be provided with the second connection pad on the reduction gear 7, connect through soft connecting axle between first connection pad and the second connection pad, so and then realized the soft connection between drive part 3 and the part that vibrates 5, avoid giving reduction gear 7 and driving motor 6 with vibration transmission on the part that vibrates 5. Further, the service lives of the drive motor 6 and the decelerator 7 can be prolonged.
As shown in fig. 2 and 3, as a preferred embodiment of the present invention, the shock absorbing member 4 includes a connection rod 13 connected to the case 11 and a mount 12 mounted on the case 1, the connection rod 13 being slidably disposed inside the mount 12 by a piston 19; the outer side of the connecting rod 13 is provided with a plurality of diagonal rods 14 in an array manner, two ends of each diagonal rod 14 are respectively rotatably arranged on the connecting rod 13 and a rack 15, and the racks 15 are arranged on an installation seat 17 on the box body 1 in a left-right sliding manner; a plurality of elastically mounted gears 18 are arranged on the mounting seat 17 in an array manner, and the rack 15 is meshed with the plurality of gears 18. So when in the operation in-process, box 11 reciprocating vibration gives diagonal bar 14 through connecting rod 13 with vibrations transmission, and diagonal bar 14 makes rack 15 reciprocating sliding on mount pad 17, and mount pad 17 drive gear 18 rotates at the slip in-process, and gear 18 absorbs the vibration energy of mount pad 17, so and then can effectually absorb the vibration, improves the shock attenuation effect.
The two ends of the rack 15 are fixedly provided with slide bars 16, and the slide bars 16 are slidably arranged in through holes on the mounting seat 17, so that the left and right sliding installation of the rack 15 is realized. The mounting seat 17 is fixedly arranged on the box body 1, and the mounting seat 17 can be mounted through bolts.
As shown in fig. 4, in order to realize elastic installation of the gear 18, the gear 18 is rotatably installed on the case 1, and the gear 18 is further provided with a first elastic member 24, and two ends of the first elastic member 24 are fixedly installed on the gear 18 and the case 1, respectively, so that elastic rotation installation of the gear 18 is further realized, thereby facilitating vibration absorption. The first elastic member 24 may be a coil spring, which is convenient to implement.
In order to further improve the damping effect, the second elastic member 25 is disposed inside the mounting seat 12, and two ends of the second elastic member 25 are respectively and fixedly mounted on the mounting seat 12 and the piston 19, so as to realize multistage damping. The second elastic member 25 may be a coil spring.
As shown in fig. 2/3, in order to further improve the damping effect, the piston 19 and the inside of the mounting seat 12 are enclosed to form a damping air cavity 23, and the damping air cavity 23 stores damping gas, which may be nitrogen. The vibration absorbing structure is arranged in such a way that vibration can be absorbed effectively by absorbing vibration through the vibration absorbing structure with different damping.
The outer side array of the damping air cavity 23 is provided with a plurality of air cylinders 20, the air cylinders 20 are communicated with the inside of the damping air cavity 23 through communication ports 22, piston rods 21 are arranged in the air cylinders 20, the piston rods 21 are connected to the racks 15, and the damping air cavity 23 is arranged below the pistons 19; so when box 11 is close to box 1, diagonal rod 14 promotes rack 15 to move to the outside, and piston rod 21 slides to the outside, and then makes the inside nitrogen gas of shock attenuation air cavity 23 get into in cylinder 20, so makes shock attenuation air cavity 23 and cylinder 20 inner space increase, and then prevents box 11 to be close to box 1, reduces the vibration, and when box 11 is kept away from box 1, rack 15 of both sides moves to mount pad 12, and then makes cylinder 20 and shock attenuation air cavity 23 inner space reduce, so prevents box 11 to keep away from box 1, so reduces the vibration. The invention can further effectively absorb shock.
The working principle of the invention is as follows:
when the box body 11 approaches the box body 1, the inclined rod 14 pushes the rack 15 to move outwards through the gear 18, the gear 18 absorbs vibration energy of the rack 15 in the moving process, meanwhile, the rack 15 drives the piston rod 21 to slide outwards, so that nitrogen in the damping air cavity 23 enters the air cylinder 20, the inner space of the damping air cavity 23 and the air cylinder 20 is increased, the box body 11 is prevented from approaching the box body 1, and vibration is reduced; when the box body 11 is far away from the box body 1, racks 15 on two sides move towards the mounting seat 12, the racks 15 pass through the gears 18 in the moving process, and the gears 18 absorb vibration energy of the racks 15; the cylinder 20 is also moved toward the mount 12, so that the internal space of the cylinder 20 and the damper air chamber 23 is reduced, thus preventing the case 11 from being separated from the case 1, thus reducing vibration. The invention can further effectively absorb shock.
In the description of the present invention, it should be understood that the terms "center," "longitudinal," "lateral," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," etc. indicate or refer to an orientation or positional relationship based on that shown in the drawings, merely for convenience of describing the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, in the description of the invention, unless otherwise indicated, the meaning of "a plurality" is two or more. Features defining "first," "second," etc. may explicitly or implicitly include one or more such features.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (7)
1. The utility model provides a waterproof post-cast strip structure construction device of overlength underground structure which characterized in that includes: a case;
a vibrating member provided on the case; the vibrating component is used for vibrating the concrete;
the driving component is arranged on the box body and is in transmission connection with the vibrating component, and the driving component is driven to be in soft transmission with the vibrating component; thus, the vibration of the vibrating component is isolated from the driving component, and the driving component provides power for the vibrating component;
the vibration reducing component is arranged between the box body and the vibrating component and used for reducing the vibration of the box body in the process;
the damping component comprises a connecting rod connected to the box body and a mounting seat mounted on the box body, and the connecting rod is arranged in the mounting seat in a sliding manner through a piston; the outer side of the connecting rod is provided with a plurality of inclined rods in an array manner, two ends of each inclined rod are respectively rotatably arranged on the connecting rod and the rack, and the racks are arranged on the mounting seats on the box body in a left-right sliding manner; the mounting seat is provided with a plurality of elastically mounted gears in an array manner, the racks are meshed with the gears, the piston and the inside of the mounting seat are enclosed to form a damping air cavity, and damping air is stored in the damping air cavity; the vibration-damping air cavity is characterized in that a plurality of air cylinders are arranged on the outer side of the vibration-damping air cavity in an array mode, the air cylinders are communicated with the inside of the vibration-damping air cavity through communication ports, piston rods are arranged in the air cylinders, the piston rods are connected to the racks, and the vibration-damping air cavity is located below the pistons.
2. The construction device for a waterproof post-pouring strip structure of an ultra-long underground structure according to claim 1, wherein the vibrating component comprises a box body and a crankshaft rotatably arranged in the box body, and the crankshaft is connected with a plurality of vibrating rods for vibrating.
3. The construction device for the waterproof post-pouring strip structure of the ultra-long underground structure according to claim 2, wherein one end of the vibrating rod is rotatably installed on a connecting rod, and the connecting rod is rotatably connected to a crankshaft.
4. The construction apparatus for a waterproof post-cast strip structure of an ultra-long underground structure according to claim 3, wherein the driving part comprises a driving motor and a decelerator fixedly installed on the case, and the driving motor is in driving connection with the decelerator.
5. The construction device for the waterproof post-pouring strip structure of the ultra-long underground structure according to claim 4, wherein the output end of the speed reducer is connected to a crankshaft, a first connecting disc is arranged at the end of the crankshaft, a second connecting disc is arranged on the speed reducer, and the first connecting disc and the second connecting disc are connected through a soft connecting shaft.
6. The construction device for the waterproof post-pouring strip structure of the ultra-long underground structure according to claim 5, wherein the gear is rotatably installed on the box body, a first elastic piece is further arranged on the gear, and two ends of the first elastic piece are fixedly installed on the gear and the box body respectively.
7. The construction device for the waterproof post-pouring strip structure of the ultra-long underground structure according to claim 6, wherein a second elastic piece is arranged in the installation seat, and two ends of the second elastic piece are fixedly installed on the installation seat and the piston respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210347603.3A CN114776019B (en) | 2022-04-01 | 2022-04-01 | Waterproof post-pouring strip structure construction device of overlength underground structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210347603.3A CN114776019B (en) | 2022-04-01 | 2022-04-01 | Waterproof post-pouring strip structure construction device of overlength underground structure |
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| CN114776019A CN114776019A (en) | 2022-07-22 |
| CN114776019B true CN114776019B (en) | 2023-07-07 |
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| CN202210347603.3A Active CN114776019B (en) | 2022-04-01 | 2022-04-01 | Waterproof post-pouring strip structure construction device of overlength underground structure |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101876159A (en) * | 2010-07-23 | 2010-11-03 | 北京华洋建设开发有限公司 | Cement-concrete paving and leveling device |
| CN102797214A (en) * | 2012-09-03 | 2012-11-28 | 张晓军 | All-electric driven concrete laser leveler |
| CN208039850U (en) * | 2018-03-29 | 2018-11-02 | 江苏省交通工程集团有限公司 | A kind of efficient vibrator |
| WO2020233271A1 (en) * | 2019-05-22 | 2020-11-26 | 江苏大学 | Double-head trowelling machine self-adaptive balancing mechanism and adjusting method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5298903U (en) * | 1976-01-24 | 1977-07-26 | ||
| US7121762B2 (en) * | 2001-10-09 | 2006-10-17 | Somero Enterprises, Inc. | Apparatus for screeding uncured concrete surfaces |
| CN110486416B (en) * | 2019-09-10 | 2020-12-11 | 苏州莱锦机电自动化有限公司 | High-efficient damping device for mechanical equipment |
| CN212249248U (en) * | 2020-04-01 | 2020-12-29 | 天津中铁建业集团有限公司 | A vibration device for bar foundation pouring construction |
| CN213898166U (en) * | 2020-10-26 | 2021-08-06 | 青岛天聚商砼有限公司 | Vibrating device for concrete construction |
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2022
- 2022-04-01 CN CN202210347603.3A patent/CN114776019B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101876159A (en) * | 2010-07-23 | 2010-11-03 | 北京华洋建设开发有限公司 | Cement-concrete paving and leveling device |
| CN102797214A (en) * | 2012-09-03 | 2012-11-28 | 张晓军 | All-electric driven concrete laser leveler |
| CN208039850U (en) * | 2018-03-29 | 2018-11-02 | 江苏省交通工程集团有限公司 | A kind of efficient vibrator |
| WO2020233271A1 (en) * | 2019-05-22 | 2020-11-26 | 江苏大学 | Double-head trowelling machine self-adaptive balancing mechanism and adjusting method thereof |
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