CN114352026A - Concrete surface layer degree of depth carries thick liquid device - Google Patents

Concrete surface layer degree of depth carries thick liquid device Download PDF

Info

Publication number
CN114352026A
CN114352026A CN202111511345.XA CN202111511345A CN114352026A CN 114352026 A CN114352026 A CN 114352026A CN 202111511345 A CN202111511345 A CN 202111511345A CN 114352026 A CN114352026 A CN 114352026A
Authority
CN
China
Prior art keywords
fixedly connected
ring
thick liquid
disc
rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111511345.XA
Other languages
Chinese (zh)
Inventor
张冬冬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202111511345.XA priority Critical patent/CN114352026A/en
Publication of CN114352026A publication Critical patent/CN114352026A/en
Pending legal-status Critical Current

Links

Images

Abstract

The invention provides a concrete surface layer deep slurry lifting device, and relates to the field of concrete. This thick liquid device is carried to concrete surface degree of depth, including the handle, the handle lower extreme articulates there is the apron, and the apron lower extreme rotates and is connected with rotatory ring, rotatory ring lower extreme fixedly connected with spliced pole, one side fixedly connected with resilience mechanism that the spliced pole is close to each other, and the one end fixedly connected with tight pulley of apron is kept away from to the spliced pole, and the tight pulley is connected with resilience mechanism contact, spliced pole bottom fixedly connected with rotating shell, and the rotating shell inside groove is rotated and is connected with the trowelling plate. This thick liquid device is carried to concrete top layer degree of depth, through the traction lever carrying thick liquid dish inside groove rotary motion, the messenger carries the thick liquid dish and can utilize the edge to push down from various angles, and is rotatory around well core rod lower extreme ball through carrying the thick liquid dish, makes to carry thick liquid dish periphery and concrete contact realization different patts, has reached and has patted the concrete and has carried out the effect that the thick liquid was carried to the fine particle, has solved and has carried the problem of thick liquid to concrete top layer fine particle.

Description

Concrete surface layer degree of depth carries thick liquid device
Technical Field
The invention relates to the field of concrete, in particular to a concrete surface layer depth slurry lifting device.
Background
Concrete, referred to as "concrete" for short: refers to the general name of engineering composite materials formed by cementing aggregate into a whole by cementing materials. The term concrete generally refers to cement as the cementing material and sand and stone as the aggregate; the cement concrete, also called ordinary concrete, is widely used in civil engineering.
The demand is also different when different planes are laid to the concrete, sometimes needs the plane that surface smoothness is high to use common floating tool can not the requirement, and often mix with the stone in the concrete and lay the plane, needs the stone to keep away from the top layer sometimes, has designed concrete surface layer degree of depth and has carried thick liquid device for solving this type of problem.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a concrete surface layer depth slurry extracting device, which solves the problems that slurry is extracted from concrete surface layer fine particles, the depth of stones in concrete is changed, and large pieces of concrete cannot be leveled.
In order to achieve the purpose, the invention is realized by the following technical scheme: a concrete surface depth slurry lifting device comprises an operating handle, wherein the lower end of the operating handle is hinged with a cover plate, the lower end of the cover plate is rotatably connected with a rotating ring, the lower end of the rotating ring is fixedly connected with a connecting post, one side of the connecting post, which is close to each other, is fixedly connected with a rebounding mechanism, one end of the connecting post, which is far away from the cover plate, is fixedly connected with a fixed wheel, the bottom end of the connecting post is fixedly connected with a rotating shell, an inner groove of the rotating shell is rotatably connected with a trowelling plate, one end of the trowelling plate, which is close to each other, is fixedly connected with a direction adjusting tooth, one side of the direction adjusting tooth, which is close to the cover plate, is meshed with a direction adjusting ring, the outer peripheral surface of the direction adjusting ring is rotatably connected with the rotating shell, the upper end of the direction adjusting ring is fixedly connected with a fixed dart, the fixed dart is in contact with the rebounding mechanism and the fixed wheel, the lower end of the cover plate is fixedly connected with an operating panel, the operating panel is arranged in the center of the rotating ring, the upper end of the operating panel is fixedly connected with a trowelling motor, trowelling motor output end fixedly connected with first propelling tooth, first propelling tooth and rotatory ring toothing, thick liquid motor is carried to operation panel upper end fixedly connected with, carry thick liquid motor output end fixedly connected with second propelling tooth, second propelling tooth surface toothing has the gear wheel, well core rod of gear wheel center fixedly connected with, well core rod upper end is rotated with the operation panel and is connected, gear wheel lower extreme fixedly connected with shifting dish, the shifting dish lower extreme is connected with the traction lever, traction lever lower extreme sliding connection has carries thick liquid dish, carry thick liquid dish and well core rod sliding connection, operation panel lower extreme fixedly connected with extrusion stem, the extrusion stem is connected with the contact of steering ring, rotating casing upper end fixedly connected with bidirectional motor, bidirectional motor output end fixedly connected with threaded rod, the bracing piece has been cup jointed on the threaded rod surface, the one end that the threaded rod was kept away from to the bracing piece articulates there is the lifting shell, the lifting shell is outside the rotating casing.
Preferably, the whole rotating ring is a circular ring, a toothed ring is fixedly connected to the upper end of an inner groove of the circular ring, the first pushing teeth are meshed with the toothed ring, and the top end of the rotating ring is rotatably clamped with the cover plate.
Preferably, the rebounding mechanism is composed of a baffle, a rebounding frame, a spring and a clamping wheel, the baffle is fixedly connected with the connecting column, the rebounding frame is connected with the baffle in a sliding mode, the spring is sleeved at the upper end of the rebounding frame, and the clamping wheel is rotatably connected in an inner groove of the rebounding frame.
Preferably, the appearance of the direction-adjusting ring is a circular ring, a shifting key is fixedly connected to the inner side of the circular ring and is in contact with the extrusion rod, and the outer ring of the circular ring is connected with the rotating shell in a rotating manner.
Preferably, the upper end of the gear shifting disc is a circular disc, four groups of connecting sleeves with different lengths are fixedly connected to the disc surface, and the connecting sleeves are connected with the traction rod through screws.
Preferably, the upper end of the traction rod is a disc, a screw rod is connected to the center of the disc in a threaded mode, the lower end of the traction rod is a ball, and the ball is clamped in the pulp lifting disc in a sliding mode.
Preferably, the upper end of the pulp lifting disc is a sliding chute, the lower end of the sliding chute is a pulp lifting plate, a round hole is formed in the center of the pulp lifting plate, the round hole is clamped on the surface of the central rod in a sliding mode, and the lower surface of the pulp lifting plate is an inclined plane with a central depression.
Compared with the prior art, the invention has the following beneficial effects:
1. this thick liquid device is carried to concrete top layer degree of depth, through the traction lever carrying thick liquid dish inside groove rotary motion, the messenger carries the thick liquid dish and can utilize the edge to push down from various angles, and is rotatory around well core rod lower extreme ball through carrying the thick liquid dish, makes to carry thick liquid dish periphery and concrete contact realization different patts, has reached and has patted the concrete and has carried out the effect that the thick liquid was carried to the fine particle, has solved and has carried the problem of thick liquid to concrete top layer fine particle.
2. This thick liquid device is carried to concrete top layer degree of depth, through the adapter sleeve that differs at gear shift dish lower extreme installation length, make to carry the thick liquid dish and can change the vibration range through connecting, through the rotatory vestige of vibrations patting of eliminating of trowelling plate, different vibrations lead to the fact the influence of different degrees to the inside skeleton texture of concrete, make the degree of depth of large granule also different, reached the effect that changes concrete top layer structure through the amplitude, solved the problem that changes the interior stone degree of depth of concrete.
3. This thick liquid device is carried to concrete surface layer degree of depth through reciprocating of threaded rod rotation control lifting shell, and whole device can be changed the trowelling plate incline direction through transferring to the ring when making the conversion, makes the device can make different moving directions in different operational environment, has reached the effect that different environment changed operating condition at any time, has solved the unable floating problem of large-scale concrete.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a bottom view of the present invention;
FIG. 3 is a semi-sectional view of the rotating ring of the present invention;
FIG. 4 is a schematic structural view of the rebounding mechanism of the present invention;
FIG. 5 is a schematic view of the structure of the troweling plate according to the present invention;
FIG. 6 is a schematic view of a threaded rod of the present invention;
FIG. 7 is a schematic view of the internal structure of the present invention;
FIG. 8 is a schematic view of the extrusion stem of the present invention.
The device comprises an operating handle-1, a cover plate-2, a rotating ring-3, a connecting column-4, a rebound mechanism-5, a fixed wheel-6, a rotating shell-7, a troweling plate-8, a direction adjusting tooth-9, a direction adjusting ring-10, a fixed dart-11, an operating panel-12, a troweling motor-13, a first pushing tooth-14, a slurry lifting motor-15, a second pushing tooth-16, a bull gear-17, a central rod-18, a gear shifting disc-19, a traction rod-20, a slurry lifting disc-21, an extrusion rod-22, a bidirectional motor-23, a threaded rod-24, a supporting rod-25 and a lifting shell-26.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-8, a thick liquid device is carried to concrete top layer degree of depth, including handle 1, handle 1 lower extreme articulates there is apron 2, 2 lower extremes of apron rotate and are connected with rotatory ring 3, 3 lower extremes fixedly connected with spliced pole 4 of rotatory ring, one side fixedly connected with resilient mounting 5 that spliced pole 4 is close to each other, resilient mounting 5 is by the baffle, the resilience frame, spring and joint wheel are constituteed, baffle and 4 fixed connection of spliced pole, resilience frame and baffle sliding connection, the spring cup joints in resilience frame upper end, the joint wheel is rotated in resilience frame inside groove and is connected, resilient mounting 5 has the tight effect of joint clamp.
The end of the connecting column 4 far away from the cover plate 2 is fixedly connected with a fixed wheel 6, the fixed wheel 6 is in contact connection with a rebounding mechanism 5, the bottom end of the connecting column 4 is fixedly connected with a rotary shell 7, an inner groove of the rotary shell 7 is rotatably connected with a troweling plate 8, one end of the troweling plates 8 close to each other is fixedly connected with a direction adjusting tooth 9, one side of the direction adjusting tooth 9 close to the cover plate 2 is meshed with a direction adjusting ring 10, the outer peripheral surface of the direction adjusting ring 10 is rotatably connected with the rotary shell 7, the upper end of the direction adjusting ring 10 is fixedly connected with a fixed dart 11, the fixed dart 11 is in contact connection with the rebounding mechanism 5 and the fixed wheel 6, the lower end of the cover plate 2 is fixedly connected with an operating panel 12, the operating panel 12 is arranged in the center of the rotary ring 3, the upper end of the operating panel 12 is fixedly connected with a troweling motor 13, the output end of the troweling motor 13 is fixedly connected with a first pushing tooth 14, the whole rotary ring 3 is a circular ring, the upper end of the circular groove is fixedly connected with a tooth ring, the first pushing tooth 14 is meshed with the tooth ring, rotatory ring 3 top and apron 2 rotate the joint, and rotatory ring 3 can carry out the transmission and make troweling board 8 can rotate.
The first pushing teeth 14 are meshed with the rotating ring 3, the upper end of the operating panel 12 is fixedly connected with a slurry lifting motor 15, the output end of the slurry lifting motor 15 is fixedly connected with second pushing teeth 16, the surface of the second pushing teeth 16 is meshed with a large gear 17, the center of the large gear 17 is fixedly connected with a center rod 18, the upper end of the center rod 18 is rotatably connected with the operating panel 12, the lower end of the large gear 17 is fixedly connected with a shifting disc 19, the lower end of the shifting disc 19 is connected with a traction rod 20, the upper end of the shifting disc 19 is a circular disc, four groups of connecting sleeves with different lengths are fixedly connected to the disc surface, the connecting sleeves are connected with the traction rod 20 through screws, and the shifting disc 19 can change the connecting length so as to change the movement mode.
The lower end of the traction rod 20 is connected with a pulp lifting disc 21 in a sliding mode, the upper end of the traction rod 20 is a circular disc, a screw rod is connected to the center of the circular disc in a threaded mode, the lower end of the traction rod 20 is a round ball, the round ball is in sliding clamping connection in the pulp lifting disc 21, and the traction rod 20 has the function of connecting and pulling the pulp lifting disc 21.
Carry thick liquid dish 21 and well core rod 18 sliding connection, carry thick liquid dish 21 upper end and be the spout, the spout lower extreme is for carrying the thick liquid board, carries the thick liquid board center and has seted up the round hole, and the round hole slides the joint at well core rod 18 surface, carries the thick liquid board lower surface for the sunken inclined plane in center, carries thick liquid dish 21 and can pat the concrete and carry the thick liquid.
12 lower extreme fixedly connected with extrusion stem 22 of operation panel transfers to ring 10 appearance and is the ring, and the key is stirred to the inboard fixedly connected with of ring, stirs the key and contacts with extrusion stem 22, and the joint is rotated with rotatory shell to the ring outer lane, transfers to ring 10 and can change the incline direction of trowelling plate 8.
The extrusion stem 22 is connected with the contact of accent ring 10, and the fixedly connected with two-way motor 23 in rotatory shell 7 upper end, 23 output fixedly connected with threaded rod 24 of two-way motor, and 24 surfaces of threaded rod have cup jointed the bracing piece 25, and the one end that the threaded rod 24 was kept away from to bracing piece 25 articulates there is lifting shell 26, and lifting shell 26 is in the rotatory shell 7 outside.
When the concrete grouting machine is used, firstly, a draw bar 20 and a shifting disc 19 are connected, a grout lifting motor 15 is started to drive a second pushing tooth 16, a gear wheel 17 pushes the shifting disc 19 to rotate, the draw bar 20 slides in an inner groove of the grout lifting disc 21, the grout lifting disc 21 is pulled by the draw bar 20 to rotate around a central rod 18, the grout lifting disc 21 lifts concrete, a bidirectional motor 23 is started to drive a threaded rod 24 to rotate, a support rod 25 props up a lifting shell 26, a troweling motor 13 is started to drive a first pushing tooth 14 to rotate, the first pushing tooth 14 pushes a rotating ring 3 to rotate around a cover plate 2, a connecting column 4 drives a rotating shell 7 to rotate, a steering ring 10 is blocked by a squeezing rod 22 to enable a fixed dart 11 to enter a space between a rebound mechanism 5 and a fixed wheel 6, the troweling plate 8 is driven by a steering ring 10 through a steering tooth 9 to reach a preset inclination angle, the reverse bidirectional motor 23 is retracted into the lifting shell 26 to start working, and the troweling motor 26 is put down when the rotating direction is changed, the direction adjusting ring 10 is blocked by the extrusion rod 22 to enable the fixed dart 11 to enter between the rebound mechanism 5 and the fixed wheel 6 in the opposite direction, and the trowel plate 8 can be turned over and then put down the lifting shell 26 to be turned over.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a thick liquid device is carried to concrete surface layer degree of depth, includes action handle (1), its characterized in that: the lower end of the operating handle (1) is hinged with a cover plate (2), the lower end of the cover plate (2) is rotatably connected with a rotating ring (3), the lower end of the rotating ring (3) is fixedly connected with a connecting column (4), one side of the connecting column (4) close to each other is fixedly connected with a rebounding mechanism (5), one end of the connecting column (4) far away from the cover plate (2) is fixedly connected with a fixed wheel (6), the fixed wheel (6) is in contact connection with the rebounding mechanism (5), the bottom end of the connecting column (4) is fixedly connected with a rotating shell (7), an inner groove of the rotating shell (7) is rotatably connected with a troweling plate (8), one end of the troweling plate (8) close to each other is fixedly connected with a direction adjusting tooth (9), one side of the direction adjusting tooth (9) close to the cover plate (2) is meshed with a direction adjusting ring (10), the outer peripheral surface of the direction adjusting ring (10) is rotatably connected with the rotating shell (7), the upper end of the direction adjusting ring (10) is fixedly connected with a fixed dart (11), the fixed dart (11) is in contact connection with the rebound mechanism (5) and the fixed wheel (6);
the lower end of the cover plate (2) is fixedly connected with an operating panel (12), the operating panel (12) is arranged at the center of the rotating ring (3), the upper end of the operating panel (12) is fixedly connected with a floating motor (13), the output end of the floating motor (13) is fixedly connected with a first pushing tooth (14), the first pushing tooth (14) is meshed with the rotating ring (3), the upper end of the operating panel (12) is fixedly connected with a slurry lifting motor (15), the output end of the slurry lifting motor (15) is fixedly connected with a second pushing tooth (16), the surface of the second pushing tooth (16) is meshed with a large gear (17), the center of the large gear (17) is fixedly connected with a central rod (18), the upper end of the central rod (18) is rotatably connected with the operating panel (12), the lower end of the large gear (17) is fixedly connected with a gear shifting disc (19), the lower end of the gear shifting disc (19) is connected with a traction rod (20), the lower end of the traction rod (20) is slidably connected with a slurry lifting disc (21), the pulp extracting disc (21) is connected with the central rod (18) in a sliding manner, the lower end of the operating disc (12) is fixedly connected with an extrusion rod (22), and the extrusion rod (22) is in contact connection with the direction adjusting ring (10);
rotatory shell (7) upper end fixedly connected with two-way motor (23), two-way motor (23) output end fixedly connected with threaded rod (24), threaded rod (24) surface has cup jointed bracing piece (25), and the one end that threaded rod (24) were kept away from in bracing piece (25) articulates there is lifting shell (26), and lifting shell (26) are in rotatory shell (7) outside.
2. The concrete surface layer depth slurry lifting device according to claim 1, characterized in that: the whole rotating ring (3) is a circular ring, a toothed ring is fixedly connected to the upper end of an inner groove of the circular ring, a first pushing tooth (14) is meshed with the toothed ring, and the top end of the rotating ring (3) is rotatably clamped with the cover plate (2).
3. The concrete surface layer depth slurry lifting device according to claim 1, characterized in that: the rebounding mechanism (5) is composed of a baffle, a rebounding frame, a spring and a clamping wheel, the baffle is fixedly connected with the connecting column (4), the rebounding frame is connected with the baffle in a sliding mode, the spring is sleeved at the upper end of the rebounding frame, and the clamping wheel is rotatably connected in an inner groove of the rebounding frame.
4. The concrete surface layer depth slurry lifting device according to claim 1, characterized in that: the appearance of the direction adjusting ring (10) is a circular ring, a shifting key is fixedly connected to the inner side of the circular ring and is in contact with the extrusion rod (22), and the outer ring of the circular ring is connected with the rotating shell in a rotating mode.
5. The concrete surface layer depth slurry lifting device according to claim 1, characterized in that: the upper end of the gear shifting disc (19) is a circular disc, four groups of connecting sleeves with different lengths are fixedly connected to the disc surface, and the connecting sleeves are connected with the traction rod (20) through screws.
6. The concrete surface layer depth slurry lifting device according to claim 1, characterized in that: the upper end of the traction rod (20) is a disc, a screw rod is connected to the center of the disc through threads, the lower end of the traction rod (20) is a round ball, and the round ball slides and is clamped in the pulp extracting disc (21).
7. The concrete surface layer depth slurry lifting device according to claim 1, characterized in that: the upper end of the pulp lifting disc (21) is a sliding groove, the lower end of the sliding groove is a pulp lifting plate, a round hole is formed in the center of the pulp lifting plate, the round hole is clamped on the surface of the central rod (18) in a sliding mode, and the lower surface of the pulp lifting plate is an inclined plane with a concave center.
CN202111511345.XA 2021-12-03 2021-12-03 Concrete surface layer degree of depth carries thick liquid device Pending CN114352026A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111511345.XA CN114352026A (en) 2021-12-03 2021-12-03 Concrete surface layer degree of depth carries thick liquid device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111511345.XA CN114352026A (en) 2021-12-03 2021-12-03 Concrete surface layer degree of depth carries thick liquid device

Publications (1)

Publication Number Publication Date
CN114352026A true CN114352026A (en) 2022-04-15

Family

ID=81099896

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111511345.XA Pending CN114352026A (en) 2021-12-03 2021-12-03 Concrete surface layer degree of depth carries thick liquid device

Country Status (1)

Country Link
CN (1) CN114352026A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102016179A (en) * 2008-02-27 2011-04-13 索诺企业有限公司 Concrete finishing apparatus
CN204552114U (en) * 2015-04-16 2015-08-12 山东电力建设第二工程公司 Hand-held concrete ram-jolt trowelling machine
CN110695788A (en) * 2019-10-16 2020-01-17 广东博智林机器人有限公司 Concrete edge and corner leveling device
CN112854698A (en) * 2021-01-20 2021-05-28 江苏盛立建设发展有限公司 Construction tool and construction method for large-area concrete terrace
WO2021203660A1 (en) * 2020-04-09 2021-10-14 广东博智林机器人有限公司 Screeding device and screeding robot
CN214658890U (en) * 2021-04-14 2021-11-09 山东大禹水务建设集团有限公司 Concrete plastering equipment

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102016179A (en) * 2008-02-27 2011-04-13 索诺企业有限公司 Concrete finishing apparatus
CN204552114U (en) * 2015-04-16 2015-08-12 山东电力建设第二工程公司 Hand-held concrete ram-jolt trowelling machine
CN110695788A (en) * 2019-10-16 2020-01-17 广东博智林机器人有限公司 Concrete edge and corner leveling device
WO2021203660A1 (en) * 2020-04-09 2021-10-14 广东博智林机器人有限公司 Screeding device and screeding robot
CN112854698A (en) * 2021-01-20 2021-05-28 江苏盛立建设发展有限公司 Construction tool and construction method for large-area concrete terrace
CN214658890U (en) * 2021-04-14 2021-11-09 山东大禹水务建设集团有限公司 Concrete plastering equipment

Similar Documents

Publication Publication Date Title
CN211037850U (en) Concrete pouring equipment for building
CN114352026A (en) Concrete surface layer degree of depth carries thick liquid device
CN207259920U (en) A kind of municipal administration cement flooring laying apparatus
CN108407088B (en) Concrete mixing device and method for producing concrete containing waste stone powder slurry by using same
CN112144833B (en) Automatic indoor wall plastering machine of return stroke
CN215038931U (en) Concrete mortar agitated vessel for building
CN210128912U (en) Cement concrete compactness detection device
CN211194443U (en) Concrete mixing device is used in building site construction
CN112720851A (en) Mixer for concrete processing
CN219667037U (en) Multistage concrete mixing device
CN211622643U (en) Wall masonry auxiliary device
CN219008743U (en) Transfer bucket for concrete mixing plant
CN214085951U (en) Pipeline building block structure
CN214110921U (en) High efficiency concrete mixer
CN220666239U (en) Supporting template for building foundation construction
CN212820100U (en) Cement material pulverizer
CN220058895U (en) Cement pouring equipment
CN215202712U (en) Automatic stirring reinforcing means of high strength mortar
CN112746568B (en) Bridge bottom is with pouring a making devices
CN219731948U (en) Foundation tamping device
CN211941446U (en) Agitating unit is used in concrete processing convenient to it is clean
CN219654297U (en) Concrete surface trowelling device for building
CN214925679U (en) Hydraulic engineering concrete mixing equipment
CN216587747U (en) Construction is with novel defeated material device
CN219466561U (en) Mortar mixing device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20220415

WD01 Invention patent application deemed withdrawn after publication