CN110259137B - Concrete construction vibration mechanism - Google Patents
Concrete construction vibration mechanism Download PDFInfo
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- CN110259137B CN110259137B CN201910669243.7A CN201910669243A CN110259137B CN 110259137 B CN110259137 B CN 110259137B CN 201910669243 A CN201910669243 A CN 201910669243A CN 110259137 B CN110259137 B CN 110259137B
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- wedge
- vibration
- seat
- steel sleeve
- shaped
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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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The invention relates to the technical field of concrete construction, in particular to a concrete construction vibration mechanism, which can axially reciprocate along the central rotation axis of the rotation eccentric mechanism within a certain stroke while rotating, so that the vibration mechanism can vibrate concrete in a rotation plane, and can move in a vertical plane through the axial reciprocating movement.
Description
Technical Field
The invention relates to the technical field of concrete construction, in particular to a concrete construction vibration mechanism.
Background
At present, some mainstream concrete vibration mechanisms have certain determinations, for example, the surface area of the outer side of a vibrating bar is small, so that the area contacted with concrete is small, and relatively speaking, the vibration effect is poor, and in vibration, vibration can be generated in a rotating plane only in a rotating mode, and bubbles in concrete are difficult to be rapidly and effectively discharged upwards due to the vibration, so that the construction vibration efficiency is low, and the effective construction effect of concrete and the filling performance of concrete cannot be ensured.
Accordingly, the present invention is directed to a concrete construction vibration mechanism that solves the problems set forth above in the background art.
Disclosure of Invention
The invention aims to provide a concrete construction vibration mechanism to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a concrete construction vibration mechanism comprises a sorting and accommodating mechanism, a control mechanism and a vibration mechanism, wherein the control mechanism is arranged in the sorting and accommodating mechanism, and the control mechanism is connected with the vibration mechanism;
the output end of the power assembly is connected to the rotary eccentric mechanism, the rotary eccentric mechanism is arranged in an elastic vibration bag, and the power assembly drives the rotary eccentric mechanism to rotate, so that the rotary eccentric mechanism drives the elastic vibration bag to vibrate according to a certain frequency; and the rotating eccentric mechanism can do reciprocating motion axially along the central rotating axis of the rotating eccentric mechanism within a certain stroke while rotating.
Further, as preferred, the power assembly includes power seat, power drive motor and drive shaft, wherein, the inside shock pad that adopts of power seat is coaxial to be provided with the power drive motor, adopt the coupling joint to be provided with along its axial extension's drive shaft on the output shaft of power drive motor, the drive shaft with rotatory eccentric mechanism transmission is connected.
Further, as preferred, rotatory eccentric mechanism is including rotating steel bushing and vibration steel bushing, wherein, the tip of drive shaft is coaxial to stretch into to be connected in the rotation steel bushing, just rotate the steel bushing with but axial displacement and relative pivoted setting between the drive shaft, the fixed vibration steel bushing that is fan-shaped segmental arc structure that is provided with on the outer circumference of rotation steel bushing, the vibration steel bushing with the rotation steel bushing constitutes eccentric structure jointly, and during the rotation, the outer peripheral face of vibration steel bushing can be right the oscillating force is applyed to the elastic vibration bag.
Further, as preferred, the outer peripheral face of vibration steel bushing is provided with a plurality of vibration archs that are intensive, the vibration arch is the spheroid structure, the periphery wall circumference array of drive shaft is provided with a plurality of integrative spacing sliding shoulders, the inner wall circumference array of rotating the steel bushing is provided with spacing spout, spacing sliding shoulder along spacing spout slides, just be provided with wear-resisting sliding sleeve on the cell wall of spacing spout, spacing spout extends along the radial direction of rotating the steel bushing.
Further, as preferred, the elastic vibration bag is a cylindrical blind hole structure, and the elastic vibration bag is fixedly connected with the power seat in a sealing manner.
Further, preferably, the axial moving mechanism comprises a fixed wedge seat and a driving wedge block, wherein the fixed wedge seat is fixed on a bearing seat in the power seat, the driving shaft is rotatably supported on the bearing seat, the end part of the fixed wedge seat is a wedge-shaped inclined plane, one side of the end part of the rotating steel sleeve, which faces the fixed wedge seat, is fixedly provided with the driving wedge block, and the wedge surface of the driving wedge block is matched with the wedge-shaped inclined plane of the fixed wedge seat;
the support mechanism enables a wedge-shaped surface of the driving wedge block and a wedge-shaped inclined surface of the fixed wedge seat to be always in fit with each other, so that the rotating steel sleeve can move back and forth along the axial direction of the driving shaft when rotating through the support mechanism.
Further, as a preferred option, the abutting mechanism is an electromagnetic abutting mechanism, and the electromagnetic abutting mechanism includes powerful electromagnets respectively fixed on the wedge-shaped surface of the driving wedge block and the wedge-shaped inclined surface of the fixed wedge seat.
Further, as preferred, the abutting mechanism is a strong tension spring, the strong tension spring is arranged in the rotating steel sleeve, and the wedge-shaped surface of the driving wedge block and the wedge-shaped inclined surface of the fixed wedge seat are always abutted by the tension of the strong tension spring.
Further, as preferred, the mechanism is held in arrangement includes the mainboard, the side fixedly connected with protruding axle of mainboard, the bearing has been cup jointed through the protruding axle surface to the mainboard, the last fixed surface of mainboard is connected with the iron bucket, the iron bucket lid is installed to the top of iron bucket, the upper surface of mainboard is located one side corner department of iron bucket and installs first montant, and the upper surface of mainboard is located the opposite side corner department of iron bucket and installs the second montant, second montant fixedly connected with pull rod.
Further, as preferred, control mechanism includes revolving stage and controller, wherein, the last fixed surface of mainboard is connected with the revolving stage, the top fixedly connected with controller of revolving stage, the output fixedly connected with rubber hose of controller, rubber hose's the other end and vibration mechanism electricity are connected, vibration mechanism's tip still is provided with the installation handle seat of installation handle, vibration mechanism's periphery still is provided with a plurality of counter weights and installs the piece additional.
Compared with the prior art, the invention has the beneficial effects that:
1. the rotary eccentric mechanism can perform axial reciprocating movement in a certain stroke along the central rotation axis of the rotary eccentric mechanism while performing rotary movement, so that the vibration mechanism can vibrate concrete in a rotation plane, and can move in a vertical plane through the axial reciprocating movement, thus a constructor does not need to lift up and down constantly, the up-and-down movement frequency of the rotary eccentric mechanism is high, the discharge of internal bubbles in the concrete construction process is effectively ensured, the concrete filling and combining performance is improved, and the defects of pores and the like are prevented;
2. after the side fixed connection counter weight of the device vibrating spear installs the piece additional, the surface area increase of vibration side, thereby increase with the area of contact of concrete, thereby vibration effect is better, in concrete construction operation, need be to the concrete vibration in different places, the mechanism is convenient for remove, time saving and labor saving, and can change the orientation as required, thereby convenient vibration equidirectional, the concrete in different position, improve work efficiency, after the vibration operation is accomplished, can in time wash the vibrating spear in the iron bucket, avoid having remaining concrete on the vibrating spear, influence next use, the device has enclosed one deck wire netting, avoid debris damage control mechanism.
Drawings
FIG. 1 is a schematic structural view of a concrete construction vibration mechanism;
FIG. 2 is a schematic diagram of an internal structure of a concrete construction vibrating mechanism;
fig. 3 is a schematic structural view of a rotary table in a concrete construction vibration mechanism.
FIG. 4 is a schematic diagram of the internal structure of a vibration mechanism of a concrete construction vibration mechanism;
fig. 5 is a schematic sectional view showing the connection between the driving shaft and the rotating steel sleeve of the vibration mechanism of the concrete construction vibration mechanism.
Detailed Description
Referring to fig. 1 to 5, in the embodiment of the present invention, a concrete construction vibration mechanism includes a sorting and accommodating mechanism, a control mechanism and a vibration mechanism 9, wherein the control mechanism is disposed in the sorting and accommodating mechanism, and the control mechanism is connected to the vibration mechanism, and the vibration mechanism 9 includes a power assembly, a rotary eccentric mechanism and an axial movement mechanism;
the output end of the power assembly is connected to the rotary eccentric mechanism, the rotary eccentric mechanism is arranged in the elastic vibration bag 91, and the power assembly drives the rotary eccentric mechanism to rotate, so that the rotary eccentric mechanism drives the elastic vibration bag to vibrate according to a certain frequency; and the rotating eccentric mechanism can do reciprocating motion axially along the central rotating axis of the rotating eccentric mechanism within a certain stroke while rotating.
In the invention, the power assembly comprises a power seat 90, a power driving motor 19 and a driving shaft 97, wherein the power driving motor 19 is coaxially arranged in the power seat 90 by adopting a shock pad, the driving shaft 97 extending along the axial direction of the output shaft of the power driving motor 19 is connected and arranged on the output shaft of the power driving motor 19 by adopting a coupling, and the driving shaft is in transmission connection with the rotary eccentric mechanism.
The rotary eccentric mechanism comprises a rotary steel sleeve 93 and a vibrating steel sleeve 92, wherein the end part of the driving shaft 97 coaxially extends into and is connected into the rotary steel sleeve, the rotary steel sleeve and the driving shaft are axially movable and cannot relatively rotate, the vibrating steel sleeve 92 in a fan-shaped arc section structure is fixedly arranged on the outer circumference of the rotary steel sleeve, the vibrating steel sleeve 92 and the rotary steel sleeve 93 jointly form an eccentric structure, and during rotation, the outer circumferential surface of the vibrating steel sleeve 92 can apply an oscillating force to the elastic vibrating bag 91.
As a preferred embodiment, a plurality of vibration protrusions 96 are densely arranged on the outer peripheral surface of the vibration steel sleeve 92, the vibration protrusions 96 are of a spherical structure, a plurality of integrated limiting sliding shoulders 99 are arranged on the peripheral wall of the driving shaft in a circumferential array, a limiting sliding groove is arranged on the inner wall of the rotation steel sleeve 93 in a circumferential array, the limiting sliding shoulders slide along the limiting sliding groove, a wear-resistant sliding sleeve 98 is arranged on the wall of the limiting sliding groove, and the limiting sliding groove extends along the radial direction of the rotation steel sleeve.
The elastic vibration bag 91 is a cylindrical blind hole structure, and the elastic vibration bag 91 is fixedly and hermetically connected with the power seat 90.
The axial moving mechanism comprises a fixed wedge seat 94 and a driving wedge block 95, wherein the fixed wedge seat 94 is fixed on a bearing seat in the power seat, the driving shaft 97 can be rotatably supported on the bearing seat, the end part of the fixed wedge seat 94 is a wedge-shaped inclined plane, one side of the end part of the rotating steel sleeve 93, which faces the fixed wedge seat, is fixedly provided with the driving wedge block, and the wedge surface of the driving wedge block is matched with the wedge-shaped inclined plane of the fixed wedge seat; the support mechanism enables a wedge-shaped surface of the driving wedge block and a wedge-shaped inclined surface of the fixed wedge seat to be always in fit with each other, so that the rotating steel sleeve can move back and forth along the axial direction of the driving shaft when rotating through the support mechanism.
As a preferred embodiment, the abutting mechanism is an electromagnetic abutting mechanism, and the electromagnetic abutting mechanism includes powerful electromagnets respectively fixed on the wedge-shaped surface of the driving wedge block and the wedge-shaped inclined surface of the fixed wedge seat.
As another preferred embodiment, the abutting mechanism is a strong tension spring, the strong tension spring is disposed in the rotating steel sleeve 93, and the pulling force of the strong tension spring makes the wedge-shaped surface of the driving wedge block and the wedge-shaped inclined surface of the fixed wedge seat always abut against each other.
As shown in fig. 1-3, the arrangement accommodating mechanism comprises a main board 1, a side fixedly connected with protruding shaft 4 of the main board 1, a bearing 3 is sleeved on the surface of the main board 1 through the protruding shaft 4, an upper surface fixedly connected with iron bucket 5 of the main board 1, an iron bucket cover 13 is installed above the iron bucket 5, a first vertical rod 11 is installed at a corner of one side of the upper surface of the main board 1, the upper surface of the main board 1 is located at the corner of the other side of the iron bucket 5, a second vertical rod 14 is installed at a corner of the other side of the upper surface of the main board 1, and a pull rod 6 is fixedly connected with the second vertical rod 14.
Control mechanism includes revolving stage 2 and controller 12, wherein, the last fixed surface of mainboard 1 is connected with revolving stage 2, the top fixedly connected with controller 12 of revolving stage 2, the output fixedly connected with rubber hose 7 of controller 12, rubber hose 7's the other end and vibration mechanism electricity are connected, vibration mechanism's tip still is provided with the installation handle seat 8 of installation handle, vibration mechanism's periphery still is provided with a plurality of counter weights and installs piece 10 additional.
Specifically, the top roll connection of revolving stage 2 has steel ball 17, revolving stage 2 passes through steel ball 17 roll connection revolving cap 16, revolving cap 16 fixedly connected with connecting block 18, revolving cap 16 passes through connecting block 18 through connection in revolving stage 2. First montant 11 fixedly connected with wire netting 15, wire netting 15's opposite side fixedly connected with second montant 14, and wire netting 15's bottom fixed connection mainboard 1. The hinge is installed to the junction of iron bucket 5 and iron drum lid 13, and the junction of iron bucket 5 and iron drum lid 13 is provided with the sealing washer.
The invention inserts the vibration mechanism 9 into the concrete to be vibrated, the additional blocks 10 are evenly arranged on the outer side surface of the vibration mechanism 9, the side area of the vibration mechanism 9 is increased, thereby the contact area of the vibration mechanism and the concrete is increased, the vibration efficiency is higher, simultaneously the vibration mechanism can be lifted and rotationally moved, the rotary table 2 is in rolling connection with the rotary cover 16 through the steel balls 17, the connecting block 18 is fixedly connected with the rotary cover 16, and the connecting block 18 is connected in the rotary table 2 in a penetrating way, thereby the rotary cover 16 is fixed above the rotary table 2 and can be rotated mutually, during construction, the rotary cover 16 drives the control mechanism to rotate, thereby the concrete vibration in different directions can be realized, the construction efficiency is improved, the iron drum 5 is filled with clear water, after the construction, the vibration rod 9 is inserted into the iron drum 5 to be cleaned in time, avoiding the residual concrete on the surface.
The rotary eccentric mechanism can perform axial reciprocating movement in a certain stroke along the central rotation axis of the rotary eccentric mechanism while performing rotary movement, so that the vibration mechanism can vibrate concrete in a rotation plane, and can move in a vertical plane through the axial reciprocating movement, thus a constructor does not need to lift up and down constantly, the up-and-down movement frequency of the rotary eccentric mechanism is high, the discharge of internal bubbles in the concrete construction process is effectively ensured, the concrete filling and combining performance is improved, and the defects of pores and the like are prevented; after the side fixed connection counter weight of the device vibrating spear installs the piece additional, the surface area increase of vibration side, thereby increase with the area of contact of concrete, thereby vibration effect is better, in concrete construction operation, need be to the concrete vibration in different places, the mechanism is convenient for remove, time saving and labor saving, and can change the orientation as required, thereby convenient vibration equidirectional, the concrete in different position, improve work efficiency, after the vibration operation is accomplished, can in time wash the vibrating spear in the iron bucket, avoid having remaining concrete on the vibrating spear, influence next use, the device has enclosed one deck wire netting, avoid debris damage control mechanism.
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 are equivalent to or changed within the technical scope of the present invention.
Claims (4)
1. A concrete construction vibration mechanism comprises a sorting and accommodating mechanism, a control mechanism and a vibration mechanism (9), wherein the control mechanism is arranged in the sorting and accommodating mechanism and is connected with the vibration mechanism, and the vibration mechanism (9) is characterized by comprising a power assembly, a rotary eccentric mechanism and an axial movement mechanism; the output end of the power assembly is connected to the rotary eccentric mechanism, the rotary eccentric mechanism is arranged in the elastic vibration bag (91), and the power assembly drives the rotary eccentric mechanism to rotate, so that the rotary eccentric mechanism drives the elastic vibration bag to vibrate according to a certain frequency; and the rotating eccentric mechanism can move in a rotating way and can also rotate along the central rotation axis of the rotating eccentric mechanism
Axially reciprocating within a certain stroke;
the power assembly comprises a power seat (90), a power driving motor (19) and a driving shaft (97), wherein the power driving motor (19) is coaxially arranged in the power seat (90) by adopting a shock pad, the driving shaft (97) extending along the axial direction of the output shaft of the power driving motor (19) is arranged on the output shaft of the power driving motor (19) by adopting a coupling connection, and the driving shaft is in transmission connection with the rotating eccentric mechanism;
the rotary eccentric mechanism comprises a rotary steel sleeve (93) and a vibrating steel sleeve (92), wherein the end part of the driving shaft (97) coaxially extends into the rotary steel sleeve, the rotary steel sleeve and the driving shaft are arranged in a manner of axial movement and relative rotation, the vibrating steel sleeve (92) in a sector arc section structure is fixedly arranged on the outer circumference of the rotary steel sleeve, the vibrating steel sleeve (92) and the rotary steel sleeve (93) jointly form an eccentric structure, and the outer circumference of the vibrating steel sleeve (92) can apply oscillating force to the elastic vibrating bag (91) during rotation;
a plurality of vibration bulges (96) are densely arranged on the outer peripheral surface of the vibration steel sleeve (92), the vibration bulges (96) are of a spherical structure, a plurality of integrated limiting sliding shoulders (99) are arranged on the peripheral wall of the driving shaft in a circumferential array manner, limiting sliding grooves are arranged on the inner wall of the rotation steel sleeve (93) in a circumferential array manner, the limiting sliding shoulders slide along the limiting sliding grooves, wear-resistant sliding sleeves (98) are arranged on the groove walls of the limiting sliding grooves, and the limiting sliding grooves extend along the radial direction of the rotation steel sleeve;
the elastic vibration bag (91) is of a cylindrical blind hole structure, and the elastic vibration bag (91) is fixedly and hermetically connected with the power seat (90);
the axial moving mechanism comprises a fixed wedge-shaped seat (94) and a driving wedge-shaped block (95), wherein the fixed wedge-shaped seat (94) is fixed on a bearing seat in the power seat, the driving shaft (97) is rotatably supported on the bearing seat, the end part of the fixed wedge-shaped seat (94) is a wedge-shaped inclined plane, one side of the end part, facing the fixed wedge-shaped seat, of the rotating steel sleeve (93) is fixedly provided with the driving wedge-shaped block, and the wedge-shaped surface of the driving wedge-shaped block is matched with the wedge-shaped inclined plane of the fixed wedge-shaped seat; the abutting mechanism enables a wedge-shaped surface of the driving wedge block and a wedge-shaped inclined surface of the fixed wedge seat to be always in fit, so that the rotating steel sleeve can move back and forth along the axial direction of the driving shaft when rotating through the abutting mechanism;
the sorting and accommodating mechanism comprises a main board (1), the control mechanism comprises a rotating table (2) and a controller (12), wherein the upper surface of the main board (1) is fixedly connected with the rotating table (2), the top end of the rotating table (2) is fixedly connected with the controller (12), the output end of the controller (12) is fixedly connected with a rubber hose (7), the other end of the rubber hose (7) is electrically connected with the vibration mechanism, the end part of the vibration mechanism is also provided with a mounting handle seat (8) for mounting a handle, and the periphery of the vibration mechanism is also provided with a plurality of counterweight mounting blocks (10); the top roll connection of revolving stage (2) has steel ball (17), revolving stage (2) pass through steel ball (17) roll connection rotatory lid (16), rotatory lid (16) fixedly connected with connecting block (18), rotatory lid (16) pass through connecting block (18) through connection in revolving stage (2).
2. The concrete construction vibration mechanism of claim 1, wherein the abutting mechanism is an electromagnetic abutting mechanism, and the electromagnetic abutting mechanism comprises powerful electromagnets respectively fixed on the wedge-shaped face of the driving wedge block and the wedge-shaped inclined face of the fixed wedge seat.
3. The concrete construction vibration mechanism as recited in claim 1, wherein the abutting mechanism is a strong tension spring, the strong tension spring is arranged in the rotating steel sleeve (93), and the wedge-shaped surface of the driving wedge block and the wedge-shaped inclined surface of the fixed wedge seat are always abutted by the tension of the strong tension spring.
4. The concrete construction vibration mechanism according to any one of claims 1-3, characterized in that a protruding shaft (4) is fixedly connected to the side surface of the main plate (1), the main plate (1) is sleeved with a bearing (3) through the surface of the protruding shaft (4), the upper surface of the main plate (1) is fixedly connected with an iron bucket (5), an iron bucket cover (13) is installed above the iron bucket (5), a first vertical rod (11) is installed at the corner of one side of the iron bucket (5) on the upper surface of the main plate (1), a second vertical rod (14) is installed at the corner of the other side of the iron bucket (5) on the upper surface of the main plate (1), and a pull rod (6) is fixedly connected to the second vertical rod (14); first montant (11) fixedly connected with wire netting (15), opposite side fixedly connected with second montant (14) of wire netting (15), and bottom fixed connection mainboard (1) of wire netting (15), the hinge is installed to the junction of iron bucket (5) and iron bucket lid (13), and the junction of iron bucket (5) and iron bucket lid (13) is provided with the sealing washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910669243.7A CN110259137B (en) | 2019-07-23 | 2019-07-23 | Concrete construction vibration mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910669243.7A CN110259137B (en) | 2019-07-23 | 2019-07-23 | Concrete construction vibration mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110259137A CN110259137A (en) | 2019-09-20 |
| CN110259137B true CN110259137B (en) | 2021-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910669243.7A Expired - Fee Related CN110259137B (en) | 2019-07-23 | 2019-07-23 | Concrete construction vibration mechanism |
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| Country | Link |
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| CN (1) | CN110259137B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2510575Y (en) * | 2001-09-10 | 2002-09-11 | 杭州甚博机电科技有限公司 | Concrete vibration rod |
| CN203050128U (en) * | 2013-01-05 | 2013-07-10 | 荆恒恩 | Noiseless concrete vibrating bar |
| CN206090250U (en) * | 2016-08-30 | 2017-04-12 | 浙江嘉禾建设有限公司 | Formula of arranging machine that vibrates |
| CN206016277U (en) * | 2016-08-30 | 2017-03-15 | 浙江嘉禾建设有限公司 | Concrete vibrator |
| CN206987394U (en) * | 2017-05-23 | 2018-02-09 | 浙江金隆古建园林工程有限公司 | A kind of poker vibrator |
| CN209384671U (en) * | 2018-05-29 | 2019-09-13 | 湖北德纳建设有限公司 | A kind of uniform concrete vibrating rod with inserted of vibration |
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2019
- 2019-07-23 CN CN201910669243.7A patent/CN110259137B/en not_active Expired - Fee Related
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| CN110259137A (en) | 2019-09-20 |
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Inventor after: Song Zuqiang Inventor after: Mou Zongfeng Inventor before: Mou Zongfeng |
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Effective date of registration: 20210412 Address after: 266035 room 1001, building 13, No.1 Yinchuan East Road, Laoshan District, Qingdao City, Shandong Province Applicant after: Song Zuqiang Address before: 200030 No. 1954, Huashan Road, Shanghai, Xuhui District Applicant before: Mou Zongfeng |
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