CN115262979B - Pneumatic high-frequency vibrating rod - Google Patents
Pneumatic high-frequency vibrating rod Download PDFInfo
- Publication number
- CN115262979B CN115262979B CN202210918077.1A CN202210918077A CN115262979B CN 115262979 B CN115262979 B CN 115262979B CN 202210918077 A CN202210918077 A CN 202210918077A CN 115262979 B CN115262979 B CN 115262979B
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- pneumatic
- vibrating rod
- rod
- cylinder body
- piston
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- 238000007790 scraping Methods 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 10
- 238000004140 cleaning Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 3
- 238000009415 formwork Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention relates to the field of concrete construction machines. The pneumatic high-frequency vibrating rod comprises a cylinder body, and a pneumatic vibrating rod and a propelling piston which are arranged in the cylinder body, wherein one end of the cylinder body is a fixed end used for being connected with a concrete template, and the other end of the cylinder body is an air inlet end; the center of the fixed end is provided with a rod hole for the pneumatic vibrating rod to pass through, and the air inlet end is provided with a main air inlet interface for connecting with an air source; the propelling piston is matched with the cylinder body and is arranged in the air inlet end of the cylinder body. The invention has extremely high automation degree, lays a good foundation for the intelligent and automatic operation of concrete construction, can be connected with the concrete template through the fixed end, and can synchronously operate a plurality of sets of vibrating bars by controlling the operation of an air source by one person, thereby saving a great amount of labor cost.
Description
Technical Field
The invention relates to the field of machine concrete construction machines, in particular to a pneumatic high-frequency vibrating rod.
Background
At present, in the process of carrying out concrete construction, in order to improve the compactness of concrete, reduce inside bubble, the common practice is to vibrate concrete layer through the concrete vibrating rod to make the bubble in the concrete more effective discharge. The traditional vibrating rod generally comprises a rod body, wherein the top end of the rod body is connected with a vibrating machine head, and a worker walks the machine head to operate; part of vibrating bars are also installed on the trolley body for operation. However, these vibrating bars can only perform concrete vibrating operations under some common working conditions, and cannot be adapted to some special disclosures, for example: in the construction of a bridge tunnel, a vault concrete layer is at a high position, so that a worker cannot hold a vibrating rod for the operation of putting on a frame all the time; for instance, in the occasion of multi-point vibration, a plurality of people are often required to operate, a large amount of labor cost is consumed, and the degree of automation is extremely low.
Disclosure of Invention
The invention aims to provide a telescopic pneumatic high-frequency vibrating rod with high automation performance.
In order to achieve the aim of the invention, the invention adopts the following technical scheme: the pneumatic high-frequency vibrating rod comprises a cylinder body, and a pneumatic vibrating rod and a propelling piston which are arranged in the cylinder body, wherein one end of the cylinder body is a fixed end used for being connected with a concrete template, and the other end of the cylinder body is an air inlet end; the center of the fixed end is provided with a rod hole for the pneumatic vibrating rod to pass through, and the air inlet end is provided with a main air inlet interface for connecting with an air source; the propelling piston is matched with the cylinder body and is arranged in the air inlet end of the cylinder body;
the propelling piston is connected with the pneumatic vibrating rod, and the pneumatic vibrating rod can move along with the propelling piston; the propelling piston is provided with an extension limit position and a retraction limit position in the cylinder body, when the propelling piston is in the retraction limit position, the pneumatic vibrating rod is retracted into the cylinder body, and when the propelling piston is in the extension limit position, the pneumatic vibrating rod extends out of the cylinder body through the rod hole;
an air passage is arranged between the propelling piston and the pneumatic vibrating rod, one end of the air passage is communicated with an air inlet interface of the terminal of the pneumatic vibrating rod, and the other end of the air passage is communicated with the inner cavity of the cylinder body behind the propelling piston; a limited-pressure one-way valve is arranged on the air path; the device also comprises an elastic resetting piece, wherein the elastic resetting piece can push the pushing piston to return to the retraction limit position in a natural state; the opening pressure of the pressure limiting one-way valve is larger than the reset elastic force provided by the elastic reset piece when the pushing piston is in the extending limit position.
Preferably, a guide sleeve is further arranged in a section, close to the fixed end, of the cylinder body, and the pneumatic vibrating rod is arranged in the guide sleeve in a penetrating manner and is in sliding fit with the guide sleeve; the thrust piston reaches the extended limit when it abuts against the end of the guide sleeve.
Preferably, the pneumatic vibrating rod comprises a rod body, an eccentric shaft and a pneumatic motor, wherein the eccentric shaft is arranged in the rod body, the eccentric shaft is in rotary connection with the rod body through a bearing, and one end of the eccentric shaft is connected with an output shaft of the pneumatic motor through a motor shaft connecting loop.
Preferably, a connecting pipe is further arranged between the pneumatic vibrating rod and the propelling piston, one end of the connecting pipe extends into the rod body and is communicated with a terminal air inlet interface on the pneumatic motor, and the other end of the connecting pipe is connected with the propelling piston and is communicated with a mounting hole arranged in the center of the propelling piston; the air passage is formed by an inner hole of the connecting pipe and a mounting hole on the propulsion piston, and the pressure limiting one-way valve is arranged in the mounting hole of the propulsion piston.
Preferably, the connecting tube is a non-rigid tube.
Preferably, the connecting pipe is a rubber pipe.
Preferably, the elastic reset piece is a reset coil spring sleeved outside the guide sleeve, the rod body and the connecting pipe, and two ends of the reset coil spring respectively lean against shoulders of the guide sleeve and the propelling piston.
Preferably, an annular sealing groove is formed in the inner side wall, close to one end of the fixed end of the cylinder, of the guide sleeve, and a sealing ring is arranged in the sealing groove.
Preferably, an annular scraping blade groove is formed in the inner side wall of the rod hole of the cylinder body, and a cleaning scraping blade for scraping concrete residues on the rod body is arranged in the scraping blade groove.
Preferably, the end plate of the fixed end of the cylinder is a square plate, and four corners of the square plate are provided with connecting holes for connecting with the concrete template.
The beneficial effects of the invention are concentrated in that:
1. can automatically realize sequential operations such as extension, vibration, retraction and the like through the driving of an air source, has extremely high automation degree, and lays a good foundation for the intelligent and automatic operation of concrete construction.
2. The invention can be connected with the concrete template through the fixed end, and one person can synchronously operate a plurality of sets of vibrating bars through operation control of an air source, so that a great amount of labor cost is saved;
3. the pneumatic vibrating rod is used as a vibrating device, has extremely high running speed reaching 12000 revolutions per minute, has good high-frequency vibration effect, is extremely easy to generate resonance with a concrete member, and can quickly discharge bubbles in the member.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a schematic view of the structure of the pneumatic vibrating rod in the extended state of the present invention;
FIG. 3 is a left side view of FIG. 1;
FIG. 4 is a right side view of FIG. 1;
FIG. 5 is a half cross-sectional view of FIG. 1;
FIG. 6 is an enlarged view of portion A of FIG. 5;
fig. 7 is an enlarged view of a portion B in fig. 5.
Detailed Description
As shown in fig. 1-7, a pneumatic high-frequency vibrating rod comprises a cylinder body 1, wherein the cylinder body 1 is a cylinder, can be a square cylinder or other cylinder, and also comprises a pneumatic vibrating rod and a propelling piston 2 which are arranged in the cylinder body 1, wherein the pneumatic vibrating rod drives the vibrating rod by adopting a high-pressure air source, and can be directly modified from the existing pneumatic vibrating rod or can be adopted as the vibrating rod as follows.
As shown in fig. 1 and 2, one end of the cylinder 1 is a fixed end 3 for connection with a concrete form, and the other end is an air inlet end 4. The fixed end 3 can be directly arranged on the concrete template and is fixed with the template. The concrete form that it can adopt is as shown in fig. 3, the end plate of the fixed end 3 of the cylinder 1 is a square plate, four corners of the square plate are provided with connecting holes 19 for connecting with the concrete formwork, and the square plate can be directly fixed with the formwork by bolts penetrating through the connecting holes 19. Of course, other arrangements of the fixed end 3 are possible, for example in the form of flanges, in the form of snaps, etc., in the case of a satisfactory fixing.
The center of the fixed end 3 is provided with a rod hole 5 for the pneumatic vibrating rod to pass through, the air inlet end 4 is provided with a main air inlet interface 6 used for being connected with an air source, and an external air source enters the pneumatic vibrating rod through the main air inlet interface 6. The propelling piston 2 is matched with the cylinder 1, is arranged in the air inlet end 4 of the cylinder 1, and directly pushes the propelling piston 2 to move when an air passage communicated with the pneumatic vibrating rod is not opened after external air enters the cylinder 1 until the propelling piston 2 moves in place, and the air passage is opened, so that high-pressure air enters the pneumatic vibrating rod to drive the pneumatic vibrating rod to work.
The propulsion piston 2 is connected with a pneumatic vibrating rod, and the pneumatic vibrating rod can move along with the propulsion piston 2. As shown in fig. 1 and 2, is the position of the body 10 of the pneumatic vibrating rod, both when the propulsion piston 2 is in the two extreme positions. The propelling piston 2 is provided with an extending limit position and a retraction limit position in the cylinder body 1, the limit position can be limited by a stop block, a limiting bulge and the like, when the propelling piston 2 is positioned at the retraction limit position, the pneumatic vibrating rod is retracted into the cylinder body 1, when the propelling piston 2 is positioned at the extending limit position, the pneumatic vibrating rod extends out of the cylinder body 1 through the rod hole 5, the limit position is flexibly related according to the corresponding concrete construction thickness, such as a common bridge tunnel and the like, and the extending length of the pneumatic vibrating rod is about 400 mm.
In the working process of the invention, the high-pressure gas of a gas source enters the cylinder 1 to push the propelling piston 2 to move towards the left side as shown in fig. 5 so that the pneumatic vibrating rod can be inserted into the concrete layer; and secondly, after the pneumatic vibrating rod stretches out in place, the pneumatic vibrating rod can be driven to vibrate along with the continuous addition of high-pressure gas, so that vibrating degassing is realized. In order to realize the sequential execution of two sections actions, be provided with the gas circuit between propulsion piston 2 and the pneumatic vibrating rod, the terminal air inlet interface 7 intercommunication of pneumatic vibrating rod of one end and pneumatic vibrating rod, the other end communicates with the barrel 1 inner chamber at propulsion piston 2 rear, be provided with limited pressure check valve 8 on the gas circuit. The pressure limiting one-way valve 8 can only drive the pressure limiting one-way valve 8 to open when the pressure of the rear end (namely the right end in the figure) in the cylinder body 1 is large enough, so that high-pressure gas can enter the pneumatic vibrating rod.
Meanwhile, the invention also comprises an elastic restoring piece which can push the pushing piston 2 to return to the retraction limit position in a natural state, namely the position shown in fig. 5. The opening pressure of the pressure-limiting check valve 8 is greater than the restoring elastic force provided by the elastic restoring element when the pushing piston 2 is in the extending limit position, that is, as shown in fig. 5, when high-pressure gas is injected through the main air inlet port 6, the starting pressure is smaller, the pressure-limiting check valve 8 cannot be opened, and at the moment, the pressure-limiting check valve can push the pushing piston 2 to continuously move leftwards to drive the pneumatic vibrating rod to extend; until the pushing piston 2 reaches the limit position, the pushing piston cannot continue to move, and as the pressure in the right end of the cylinder body 1 continuously rises, the pressure limiting one-way valve 8 is opened, and high-pressure gas enters the pneumatic vibrating rod to drive the pneumatic vibrating rod to vibrate. After the vibration is completed, the propelling piston 2 is pushed to the right under the action of the elastic resetting piece along with the cutting-off of the air source, and then the pneumatic vibrating rod is driven to retract into the cylinder body 1.
On the basis, in order to improve the stability of the pneumatic vibrating rod in the barrel body 1, as shown in fig. 5, a guide sleeve 9 is further arranged in a section, close to the fixed end 3, of the barrel body 1, and the pneumatic vibrating rod is arranged in the guide sleeve 9 in a penetrating manner and forms sliding fit with the guide sleeve 9. When the pushing piston 2 is abutted against the end of the guide sleeve 9, the limit of the extending limit position is formed by the pushing piston 2 being abutted against the end of the guide sleeve 9, in this way, not only the movement stability of the pneumatic vibrating rod is improved, but also the limit block, the stop block and other parts for limiting the limit position can be omitted.
The invention also synchronously discloses a pneumatic vibrating rod, which comprises a rod body 10, an eccentric shaft 11 and a pneumatic motor 12, wherein the eccentric shaft 11 is arranged in the rod body 10, the eccentric shaft 11 is in rotary connection with the rod body 10 through a bearing, and one end of the eccentric shaft 11 is connected with an output shaft of the pneumatic motor 12 through a motor shaft connecting loop 13, as shown in fig. 5. After entering the pneumatic vibrating rod through the gas circuit, the high-pressure gas directly enters the terminal air inlet interface 7 on the pneumatic motor 12, so as to drive the pneumatic motor 12 to rotate, and the output shaft drives the eccentric shaft 11 to rotate, thereby generating high-frequency vibration.
From the foregoing, it can be seen that the pneumatic vibrating rod of the present invention needs to move along with the pushing piston 2, and can be directly connected to the pushing piston 2 or indirectly connected to the pushing piston 2. As shown in fig. 3, a connecting pipe 14 is further disposed between the pneumatic vibrating rod and the propelling piston 2, one end of the connecting pipe 14 extends into the rod body 10 of the pneumatic vibrating rod and is communicated with the terminal air inlet interface 7 on the pneumatic motor 12, and the other end of the connecting pipe 14 is connected with the propelling piston 2 and is communicated with a mounting hole 15 disposed in the center of the propelling piston 2. In this form, the air path is formed by the inner hole of the connecting pipe 14 and the mounting hole 15 on the pushing piston 2, and the pressure limiting check valve 8 is arranged in the mounting hole 15 of the pushing piston 2.
Of course, in the process of high-speed vibration, in order to avoid excessive vibration being transmitted to the propulsion piston 2 and further affecting the piston tightness of the propulsion piston 2, the connecting pipe 14 is a non-rigid pipe, that is, the connecting pipe 14 should have a certain strength, which is sufficient for pushing the pneumatic vibrating rod, and meanwhile, the pneumatic vibrating rod is not made of high-hardness materials such as ordinary carbon steel, alloy steel, etc., and has a certain buffering performance, so that excessive vibration is prevented from being transmitted to the propulsion piston 2. The connecting pipe 14 may be a rubber pipe, a plastic pipe, or the like having a certain buffer property.
As regards the specific form of elastic return element used in the present invention, it may be a return coil spring 16, that is, as shown in fig. 5, the elastic return element is a return coil spring 16 that is sleeved outside the guide sleeve 9, the rod body 10 and the connecting tube 14, and both ends of the return coil spring 16 abut against the shoulders of the guide sleeve 9 and the thrust piston 2, respectively. Of course, other configurations are possible, provided that the relevant function is achieved, for example: a pull rope driven by a spiral spring rope winder is arranged on the inner end surface of the air inlet end 4 of the cylinder body 1, one end of the pull rope is connected with the propulsion piston 2, and the propulsion piston 2 can be reset through the elasticity of the spiral spring rope winder. However, in the structural form of the present invention, the return coil spring 16 is mounted as shown in fig. 5, which is the most reliable way at present.
In addition, since the pneumatic vibrating rod needs to stretch and retract in the concrete layer, in order to realize the sealing of the inside of the cylinder 1 of the present invention, as shown in fig. 6, an annular sealing groove 17 is provided on the inner side wall of the guide sleeve 9 near one end of the fixed end 3 of the cylinder 1, and a sealing ring is provided in the sealing groove 17. The inner side wall of the rod hole 5 of the cylinder 1 is provided with an annular scraping blade groove 18, and a cleaning scraping blade for scraping concrete residues on the rod body 10 is arranged in the scraping blade groove 18, and the cleaning scraping blade can be a scraping blade with a certain elasticity, which is tightly attached to the rod body 10 to ensure close contact with the rod body 10, or a cleaning scraping blade which is prepared from a rigid material and is in micro-clearance fit with the rod body 10, and is not specifically shown in the invention because of the simple structure.
Claims (8)
1. A pneumatic high-frequency vibrating rod is characterized in that: the concrete template pneumatic vibrating rod comprises a cylinder body (1), and a pneumatic vibrating rod and a propelling piston (2) which are arranged in the cylinder body (1), wherein one end of the cylinder body (1) is a fixed end (3) used for being connected with the concrete template, and the other end of the cylinder body is an air inlet end (4); the center of the fixed end (3) is provided with a rod hole (5) for the pneumatic vibrating rod to pass through, and the air inlet end (4) is provided with a main air inlet interface (6) for connecting with an air source; the propelling piston (2) is matched with the cylinder body (1) and is arranged in the air inlet end (4) of the cylinder body (1);
the propelling piston (2) is connected with a pneumatic vibrating rod, and the pneumatic vibrating rod can move along with the propelling piston (2); the propelling piston (2) is provided with an extension limit position and a retraction limit position in the cylinder body (1), when the propelling piston (2) is positioned at the retraction limit position, the pneumatic vibrating rod is retracted into the cylinder body (1), and when the propelling piston (2) is positioned at the extension limit position, the pneumatic vibrating rod extends out of the cylinder body (1) through the rod hole (5);
an air passage is arranged between the propelling piston (2) and the pneumatic vibrating rod, one end of the air passage is communicated with a terminal air inlet interface (7) of the pneumatic vibrating rod, and the other end of the air passage is communicated with the inner cavity of the cylinder (1) behind the propelling piston (2); a limited pressure one-way valve (8) is arranged on the air path; the device also comprises an elastic resetting piece, wherein the elastic resetting piece can push the pushing piston (2) to return to the retraction limit position in a natural state; the opening pressure of the pressure limiting one-way valve (8) is larger than the reset elastic force provided by the elastic reset piece when the pushing piston (2) is in the extending limit position;
the pneumatic vibrating rod comprises a rod body (10), an eccentric shaft (11) and a pneumatic motor (12), wherein the eccentric shaft (11) is arranged in the rod body (10), the eccentric shaft (11) is in rotary connection with the rod body (10) through a bearing, and one end of the eccentric shaft (11) is connected with an output shaft of the pneumatic motor (12) through a motor shaft connecting loop (13);
a connecting pipe (14) is further arranged between the pneumatic vibrating rod and the propelling piston (2), one end of the connecting pipe (14) stretches into the rod body (10) and is communicated with a terminal air inlet interface (7) on the pneumatic motor (12), and the other end of the connecting pipe (14) is connected with the propelling piston (2) and is communicated with a mounting hole (15) arranged in the center of the propelling piston (2); the pressure limiting one-way valve (8) is arranged in a mounting hole (15) of the propulsion piston (2);
an annular scraping blade groove (18) is formed in the inner side wall of the rod hole (5) of the cylinder body (1), and a cleaning scraping blade for scraping concrete residues on the rod body (10) is arranged in the scraping blade groove (18).
2. The pneumatic high frequency vibrating rod of claim 1, wherein: a guide sleeve (9) is further arranged in a section, close to the fixed end (3), of the cylinder body (1), and the pneumatic vibrating rod is arranged in the guide sleeve (9) in a penetrating manner and is in sliding fit with the guide sleeve (9); the advancing piston (2) reaches an extended limit position when it abuts against the end of the guide sleeve (9).
3. A pneumatic high frequency vibrating rod according to claim 2, wherein: the air passage is formed by an inner hole of the connecting pipe (14) and a mounting hole (15) on the pushing piston (2).
4. A pneumatic high frequency vibrating bar according to claim 3, wherein: the connecting tube (14) is a non-rigid tube.
5. The pneumatic high frequency vibrating rod of claim 4, wherein: the connecting pipe (14) is a rubber pipe.
6. The pneumatic high frequency vibrating rod of claim 5, wherein: the elastic reset piece is a reset spiral spring (16) sleeved outside the guide sleeve (9), the rod body (10) and the connecting pipe (14), and two ends of the reset spiral spring (16) respectively lean against shoulders of the guide sleeve (9) and the propelling piston (2).
7. The pneumatic high frequency vibrating rod of claim 6, wherein: an annular sealing groove (17) is formed in the inner side wall, close to one end of the fixed end (3) of the cylinder body (1), of the guide sleeve (9), and a sealing ring is arranged in the sealing groove (17).
8. The pneumatic high frequency vibrating rod of claim 1, wherein: the end plate of the fixed end (3) of the cylinder body (1) is a square plate, and four corners of the square plate are provided with connecting holes (19) for connecting with a concrete template.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210918077.1A CN115262979B (en) | 2022-08-01 | 2022-08-01 | Pneumatic high-frequency vibrating rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210918077.1A CN115262979B (en) | 2022-08-01 | 2022-08-01 | Pneumatic high-frequency vibrating rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115262979A CN115262979A (en) | 2022-11-01 |
| CN115262979B true CN115262979B (en) | 2023-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210918077.1A Active CN115262979B (en) | 2022-08-01 | 2022-08-01 | Pneumatic high-frequency vibrating rod |
Country Status (1)
| Country | Link |
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| CN (1) | CN115262979B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1149254A (en) * | 1965-09-29 | 1969-04-23 | Edward Ulysses Pasqua | Improvements in and relating to internal concrete vibrators |
| US3543832A (en) * | 1966-04-21 | 1970-12-01 | Maschf Augsburg Nuernberg Ag | Apparatus for the manufacture of molds for casting metals |
| DD231957A3 (en) * | 1984-06-13 | 1986-01-15 | Schwarza Chemiefaser | COMPRESSED AIR INTERNAL VIBRATOR |
| JPS63197762A (en) * | 1987-02-12 | 1988-08-16 | 石川 鉄雄 | Apparatus for casting foundation concrete |
| CN205935702U (en) * | 2016-08-03 | 2017-02-08 | 中天建设集团有限公司天津分公司 | Multi -functional vibrating rod of concrete |
| CN109798129A (en) * | 2019-01-11 | 2019-05-24 | 中铁十一局集团第四工程有限公司 | A kind of tunnel double-lining concrete is automatically inserted into formula tamping equipment |
| CN209760826U (en) * | 2019-01-21 | 2019-12-10 | 湖南和福建设工程有限公司 | Concrete vibrating rod for building construction |
| CN112411553A (en) * | 2020-12-15 | 2021-02-26 | 杨鹏 | Hydraulic engineering concrete pouring is with excellent that vibrates |
| CN114776020A (en) * | 2022-04-12 | 2022-07-22 | 中国港湾工程有限责任公司 | Vibrating rod |
-
2022
- 2022-08-01 CN CN202210918077.1A patent/CN115262979B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1149254A (en) * | 1965-09-29 | 1969-04-23 | Edward Ulysses Pasqua | Improvements in and relating to internal concrete vibrators |
| US3543832A (en) * | 1966-04-21 | 1970-12-01 | Maschf Augsburg Nuernberg Ag | Apparatus for the manufacture of molds for casting metals |
| DD231957A3 (en) * | 1984-06-13 | 1986-01-15 | Schwarza Chemiefaser | COMPRESSED AIR INTERNAL VIBRATOR |
| JPS63197762A (en) * | 1987-02-12 | 1988-08-16 | 石川 鉄雄 | Apparatus for casting foundation concrete |
| CN205935702U (en) * | 2016-08-03 | 2017-02-08 | 中天建设集团有限公司天津分公司 | Multi -functional vibrating rod of concrete |
| CN109798129A (en) * | 2019-01-11 | 2019-05-24 | 中铁十一局集团第四工程有限公司 | A kind of tunnel double-lining concrete is automatically inserted into formula tamping equipment |
| CN209760826U (en) * | 2019-01-21 | 2019-12-10 | 湖南和福建设工程有限公司 | Concrete vibrating rod for building construction |
| CN112411553A (en) * | 2020-12-15 | 2021-02-26 | 杨鹏 | Hydraulic engineering concrete pouring is with excellent that vibrates |
| CN114776020A (en) * | 2022-04-12 | 2022-07-22 | 中国港湾工程有限责任公司 | Vibrating rod |
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| CN115262979A (en) | 2022-11-01 |
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