CN109914838B - Prevent whitewashing head that concrete sputters - Google Patents
Prevent whitewashing head that concrete sputters Download PDFInfo
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- CN109914838B CN109914838B CN201910284313.7A CN201910284313A CN109914838B CN 109914838 B CN109914838 B CN 109914838B CN 201910284313 A CN201910284313 A CN 201910284313A CN 109914838 B CN109914838 B CN 109914838B
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Abstract
The invention discloses a concrete sputtering prevention guniting head, and discloses a concrete sputtering prevention guniting head which can open a protective cover under the pushing of concrete during guniting so as to protect workers. The grouting spray pipe is characterized in that one end of the grouting spray pipe is arranged in the grouting spray head and is communicated with the grouting spray pipe, the grouting spray pipe is sleeved with the fixing sleeve and is close to the other end of the grouting spray pipe, the outer diameter of the fixing sleeve is gradually increased from one end to the other end, a plurality of support bone avoiding grooves are formed in the fixing sleeve at equal distances, one end of each support bone avoiding groove extends to the end face of the other end of the fixing sleeve, one end of each support bone is arranged in each support bone avoiding groove and is hinged with the fixing sleeve respectively, two adjacent support bones are connected through the protection cloth and are multiple, the protection cloth between the support bones forms the protection cover in a combined mode, one side of each support bone facing the grouting spray pipe is provided with a group of connecting lugs, and the group of connecting lugs is composed of two connecting lugs.
Description
Technical Field
The invention discloses a concrete sputtering prevention guniting head, relates to a guniting head for preventing concrete sputtering during concrete spraying in building construction, and belongs to the field of construction equipment. In particular to a splash-proof guniting head which can open a protective cover under the pushing of concrete during guniting so as to protect workers.
Background
At present, a concrete shotcrete machine is used for spraying concrete to perform construction operation, a concrete mixture is sprayed out through a nozzle to form a slurry protection wall, so that sand and soil on the inner wall of a tunnel are prevented from falling off or landslide and collapse of buildings are prevented.
Notice No. CN108756938A discloses underground tunnel construction equipment, its structure includes the hopper, pneumatic oscillator, the table case, the whitewashing head, a housing, whitewashing head fixing device, the wind path, the rail wheel, the mount, the fixed panel, the rotor block, the table case is in on same water flat line and all install on the mount with the casing, be equipped with the fixed panel on the mount, the fixed rotor block that is equipped with on the fixed panel, rotor block and hopper mechanical connection, whitewashing head fixing device installs in the casing, it has the sputtering of concrete when whitewashing the whitewashing head of this equipment, cause certain influence to the operating personnel.
Disclosure of Invention
In order to improve the situation, the invention provides the concrete sputtering prevention guniting head which can open the protective cover under the pushing of concrete during guniting so as to protect workers. The problem of sputtering during the whitewashing is solved, provide certain safety protection for personnel's operation.
The invention relates to a concrete sputtering prevention guniting head, which is realized by the following steps: the invention relates to a concrete sputtering prevention guniting head which comprises a supporting bone, protective cloth, a connecting supporting rod, a push rod, a pushing pipe, a fixing sleeve, a sliding sleeve, a grouting spray pipe, a connecting lug, a connecting shaft, a spring, a grouting spray head, a supporting bone avoiding groove, a connecting avoiding groove and a piston, wherein the grouting spray head is arranged at one end of the grouting spray pipe and communicated with the grouting spray pipe, the fixing sleeve is sleeved on the grouting spray pipe and is close to the other end of the grouting spray pipe, the fixing sleeve is fixedly connected with the grouting spray pipe, the outer diameter of the fixing sleeve is gradually increased from one end to the other end, a plurality of supporting bone avoiding grooves are equidistantly formed in the fixing sleeve, one end of each supporting bone avoiding groove extends to the end surface of the other end of the fixing sleeve, one ends of a plurality of supporting bones are respectively arranged in the plurality of supporting bone avoiding grooves and are respectively hinged with the fixing sleeves, and two adjacent, the protective cloth combination among a plurality of the supporting ribs forms a protective cover, the supporting ribs are made of aluminum materials, one side of each supporting rib facing the grouting spray pipe is provided with a group of connecting lugs, each group of connecting lugs consists of two connecting lugs, the distance between each connecting lug and one end of each supporting rib is greater than the length of each fixing sleeve, each sliding sleeve is sleeved on the grouting spray pipe and is positioned between each fixing sleeve and the corresponding grouting spray head, a gap is formed between each sliding sleeve and the corresponding grouting spray pipe, a plurality of connection avoiding grooves are formed in each sliding sleeve at equal distance, one ends of a plurality of connecting supporting rods are respectively hinged with the corresponding connecting lug groups on the supporting ribs through connecting shafts, the other ends of the connecting supporting rods are respectively hinged on the corresponding sliding sleeves and are respectively positioned in the corresponding connection avoiding grooves, a plurality of push pipes are distributed on the outer side of the grouting spray pipe at equal angles and are positioned between the grouting spray heads and the sliding sleeves, one ends of the push pipes, the grouting spray pipe is provided with a communicating hole which is correspondingly communicated with one end of the push pipe, the other end of the push pipe is provided with a through hole, one end of each push rod is respectively arranged in the push pipes, the other ends of the push rods respectively penetrate out of the through holes, and are respectively connected with the sliding sleeves, one end of the push rod is provided with a piston and is positioned in the push pipe, the outer side of the piston is attached to the inner side of the push pipe, the push rod is sleeved with a spring, and is positioned between the pushing pipe and the sliding sleeve, the connecting and supporting rod is made of aluminum material, the length of the supporting bone is longer than the distance between the fixing sleeve and the grouting spray head, the other end of the supporting bone is bent inwards, and the angle of buckling is the obtuse angle, the outside of protection casing is annular structure, the one end diameter of propulsion pipe is greater than the other end diameter, equidistantly on the inside wall of slip casting spray tube open have a plurality of hold the dressing trough.
Has the beneficial effects.
Firstly, the sputtering problem during guniting is solved, and certain safety protection is provided for personnel during operation.
Secondly, when the device contracts, the protective cloth is matched with the supporting bone to wrap the whole grouting head, so that the grouting nozzle is protected, and the residual concrete of the grouting nozzle is prevented from dripping.
And thirdly, the push rod is pushed when the concrete is sprayed, the protection is automatically unfolded, and the use and the operation are convenient.
Drawings
FIG. 1 is a perspective view of a concrete sputtering prevention guniting head according to the invention;
FIG. 2 is a perspective view of a guniting head for preventing concrete sputtering according to the present invention, showing a structure thereof after removing a protective cloth;
FIG. 3 is a perspective view of a concrete sputtering prevention guniting head according to the invention when not in use;
FIG. 4 is a perspective view of a concrete sputtering prevention guniting head according to the present invention when not in use, showing a structure thereof after removing a protective cloth;
FIG. 5 is a three-dimensional exploded view of a guniting pipe of a guniting head for preventing concrete sputtering, which only shows the structures of a grouting nozzle, a sliding sleeve and a fixed sleeve;
FIG. 6 is a schematic structural view of a concrete-sputtering-preventing guniting head according to the present invention, which shows only the structure of a set of supporting ribs and connecting supporting rods;
FIG. 7 is a schematic structural diagram of a mortar spraying head for preventing concrete sputtering at a thrust tube of the mortar spraying head, which only shows the structural relationship between a piston and the thrust tube;
in the attached drawings
Wherein the method comprises the following steps: the device comprises a supporting framework (1), protective cloth (2), a connecting support rod (3), a push rod (4), a pushing pipe (5), a fixing sleeve (6), a sliding sleeve (7), a grouting spray pipe (8), a connecting lug (9), a connecting shaft (10), a spring (11), a grouting spray head (12), a supporting framework avoiding groove (13), a connecting avoiding groove (14) and a piston (15).
The specific implementation mode is as follows:
the invention relates to a concrete sputtering prevention slurry spraying head which is realized by a support rib (1), a protective cloth (2), a connecting support rod (3), a push rod (4), a push pipe (5), a fixed sleeve (6), a sliding sleeve (7), a grouting spray pipe (8), a connecting lug (9), a connecting shaft (10), a spring (11), a grouting spray head (12), a support rib avoiding groove (13), a connecting avoiding groove (14) and a piston (15), wherein the grouting spray head (12) is arranged at one end of the grouting spray pipe (8) and communicated with the grouting spray pipe (8), the fixed sleeve (6) is sleeved on the grouting spray pipe (8) and is close to the other end of the grouting spray pipe (8), the fixed sleeve (6) is fixedly connected with the grouting spray pipe (8), the outer diameter of the fixed sleeve (6) is gradually increased from one end to the other end, the fixed sleeve (6) is provided with a plurality of support rib avoiding grooves (13) at equal distance, one end of each support bone avoiding groove (13) extends to the end face of the other end of the fixed sleeve (6), one end of each support bone (1) is respectively arranged in each support bone avoiding groove (13) and is respectively hinged with the fixed sleeve (6), two adjacent support bones (1) are connected through protective cloth (2), the protective cloth (2) between the support bones (1) are combined to form a protective cover, the support bones (1) are made of aluminum materials, one side of each support bone (1) facing the grouting spray pipe (8) is provided with a group of connecting lugs (9), one group of connecting lugs (9) are composed of two connecting lugs (9), the distance between each connecting lug (9) and one end of each support bone (1) is greater than the length of the fixed sleeve (6), the sliding sleeve (7) is sleeved on the grouting spray pipe (8) and is positioned between the fixed sleeve (6) and the grouting spray head (12), a gap is arranged between the sliding sleeve (7) and the grouting spray pipe (8), a plurality of connection avoiding grooves (14) are formed in the sliding sleeve (7) at equal distances, one ends of a plurality of connecting support rods (3) are respectively hinged with connecting lugs (9) on a plurality of support bones (1) through connecting shafts (10), the other ends of the plurality of connecting support rods (3) are respectively hinged on the sliding sleeve (7) and are respectively positioned in the plurality of connection avoiding grooves (14), a plurality of pushing pipes (5) are distributed outside the grouting spray pipe (8) at equal angles and are positioned between the grouting spray head (12) and the sliding sleeve (7), one end of each pushing pipe (5) is bent inwards to be connected with the grouting spray pipe (8), a communicating hole is formed in the grouting spray pipe (8) and is correspondingly communicated with one end of each pushing pipe (5), a through hole is formed in the other end of each pushing pipe (5), one ends of a plurality of pushing rods (4) are respectively arranged in the plurality of pushing pipes (5), the utility model discloses a mortar injection nozzle, including push rod (4), sliding sleeve (7), connecting support bar (3), fixed cover (6) and slip casting nozzle (12), the through hole is outwards worn out respectively to a plurality of push rod (4) other ends, and is connected with sliding sleeve (7) respectively, piston (15) have been put to push rod (4) one end, and are located push tube (5), piston (15) outside and push tube (5) inboard laminating mutually, spring (11) have been put to the cover on push rod (4), and are located between push tube (5) and sliding sleeve (7), connecting support bar (3) are made by aluminium material, the length of support bone (1) is greater than the distance between fixed cover (6) and slip casting nozzle (12), the other end of support bone (1) is inwards buckled, and the angle of buckling is the obtuse angle, the outside of protection casing is the loop configuration, the one end diameter of push tube (5) is greater than other end diameter.
When the grouting device is used, the other end of the grouting spray pipe (8) is connected with an external grouting pipe, when grouting is not performed, a plurality of push rods (4) are pushed and pushed into the pushing pipe (5) under the action of a spring (11), the push rods (4) drive the sliding sleeve (7) to be close to the grouting spray head (12), the sliding sleeve (7) drives the plurality of connecting support rods (3) to deflect and shrink towards the axis of the grouting spray pipe (8), the plurality of connecting support rods (3) respectively pull the connected support bones (1) to shrink, the plurality of support bones (1) shrink to drive the protective cover to be folded, and the protective cover wraps the whole grouting spray head (12);
when guniting is carried out, a high-pressure concrete mixture enters a grouting spray pipe (8), when the high-pressure concrete mixture passes through one end of a push pipe (5), part of the concrete mixture enters the push pipe (5) through a communicating hole at a high speed, then the concrete mixture pushes a piston (15) in the push pipe (5) to move towards a direction far away from a grouting spray head (12), the piston (15) pushes a push rod (4) to extend out of the push pipe (5), the push rod (4) drives a sliding sleeve (7) to slide towards the other end of the grouting spray pipe (8), the sliding sleeve (7) slides along the grouting spray pipe (8) and drives a plurality of connecting support rods (3) to rotate and open, a plurality of support bones (1) are propped up, a plurality of protective cover support bones (1) are propped up to prop up, the protective cover shields and protects operating personnel, and the sprayed concrete mixture is prevented from sputtering;
a gap is arranged between the sliding sleeve (7) and the grouting spray pipe (8), so that the sliding sleeve (7) can slide along the grouting spray pipe (8) conveniently, and the friction during sliding is reduced;
the outer diameter of the fixing sleeve (6) is gradually increased from one end to the other end, so that the position of one end of the supporting bone (1) is slightly higher, and the supporting bone (1) can be conveniently opened;
the distance between the connecting lug (9) and one end of the support bone (1) is longer than the length of the fixing sleeve (6), so that the fixing sleeve (6) can be prevented from blocking the connecting lug (9) when the support bone (1) is closed;
the length of the support bone (1) is larger than the distance between the fixed sleeve (6) and the grouting spray head (12), when the support bone (1) is closed, the other end of the support bone (1) exceeds the grouting spray head (12), and then the grouting spray head (12) can be integrally wrapped in the protective cover on the support bone (1);
the other ends of the supporting bones (1) are bent inwards, and the bending angles are obtuse angles, so that when the supporting bones (1) are folded, the folding-in part can be formed at the grouting spray head (12), and the protection effect on the grouting spray head (12) is better;
the diameter of one end of the pushing pipe (5) is larger than that of the other end of the pushing pipe, so that concrete mixture can enter from one end of the pushing pipe (5) conveniently, and a piston (15) can push concrete into the grouting spray pipe (8) from one end of the pushing pipe (5) under the pushing of a spring (11) conveniently;
the design that a plurality of slurry containing grooves are formed in the inner side wall of the grouting spray pipe (8) at equal intervals can temporarily buffer a small amount of slurry during grouting, so that the slurry containing amount in the grouting spray pipe (8) is increased;
the pushing pipe (5) and the push rod (4) are matched with the sliding sleeve (7), so that the push rod (4) can be pushed by the impact force of concrete during guniting, the sliding sleeve (7) is further pushed to move, the supporting connecting rod is unfolded, and the protective cover is opened;
the support ribs (1) are matched with the protective cloth (2), the protective cover can be folded and opened, and then workers are protected during grouting, and the grouting nozzle (12) is protected when grouting is not performed;
during grouting, concrete slurry enters the pushing pipe (5) at a high speed to push the protective cover to open, so that the protective cover can be automatically unfolded during grouting, and the use is convenient;
after grouting is finished, the spring (11) pushes the push rod (4) to push concrete slurry reversely to enable the protective cover to be closed and folded, automatic folding of the protective cover can be achieved after grouting is finished, and a grouting nozzle (12) is protected;
the purpose that can open the protection casing in order to protect the staff under the promotion of concrete when whitewashing is reached.
Claims (10)
1. The utility model provides a prevent whitewashing head of concrete sputtering which characterized in that: the grouting jet pipe is composed of supporting bones, protective cloth, a connecting supporting rod, a push rod, a pushing pipe, a fixing sleeve, a sliding sleeve, a grouting jet pipe, a connecting lug, a connecting shaft, a spring, a grouting jet head, a supporting bone avoiding groove, a connecting avoiding groove and a piston, wherein the grouting jet head is arranged at one end of the grouting jet pipe and is communicated with the grouting jet pipe, the fixing sleeve is sleeved on the grouting jet pipe and is close to the other end of the grouting jet pipe, the fixing sleeve is fixedly connected with the grouting jet pipe, a plurality of supporting bone avoiding grooves are equidistantly formed in the fixing sleeve, one end of each supporting bone avoiding groove extends to the end face of the other end of the fixing sleeve, one ends of a plurality of supporting bones are respectively arranged in the plurality of supporting bone avoiding grooves and are respectively hinged with the fixing sleeve, two adjacent supporting bones are connected through the protective cloth, the protective cloth among the plurality of supporting bones is combined to form a protective cover, one side of each, a group of engaging lugs is composed of two engaging lugs, a sliding sleeve is sleeved on a grouting spray pipe and is positioned between a fixed sleeve and the grouting spray head, a plurality of connection avoiding grooves are formed on the sliding sleeve at equal distance, one end of a plurality of connecting support rods is hinged with the connecting lug group on a plurality of support bones through a connecting shaft respectively, the other ends of the plurality of connecting support rods are hinged on the sliding sleeve respectively and are positioned in the plurality of connection avoiding grooves respectively, a plurality of push pipes are distributed on the outer side of the grouting spray pipe at equal angles and are positioned between the grouting spray head and the sliding sleeve, one end of each push pipe is bent inwards in an arc shape to be connected with the grouting spray pipe, a communicating hole is formed on the grouting spray pipe and is correspondingly communicated with one end of each push pipe, a through hole is formed on the other end of each push pipe, one end of each push rod is arranged in each push pipe respectively, the other ends of the push rods, the utility model discloses a slip casting device, including slip casting spray pipe, push rod, piston, push rod, spring, sliding sleeve, protection casing, the piston has been put to one end, and is located the push pipe, the piston outside is laminated with the push pipe inboard mutually, the spring has been put to the cover on the push rod, and is located between push pipe and the sliding sleeve, the outside of protection casing is the annular structure, equidistant division has a plurality of thick liquids grooves of holding on the inside wall of slip casting.
2. The shotcrete head of claim 1, wherein the push pipe and the push rod are engaged with a sliding sleeve, so that the push rod is pushed by the impact of the concrete during shotcrete, and the sliding sleeve is pushed to move to expand the support rod and open the protective cover.
3. The shotcrete head of claim 1 wherein the sleeve has an outer diameter that increases from one end to the other.
4. The shotcrete head of claim 1 wherein a gap is disposed between the sleeve and the grouting nozzle.
5. The shotcrete head of claim 1 wherein the distance between the engaging lugs and the end of the support beam is greater than the length of the retaining sleeve.
6. The shotcrete head of claim 1, wherein the other end of the supporting ribs is bent inward, and the bending angle is an obtuse angle, so that when the supporting ribs are retracted, a closed end is formed at the shotcrete head.
7. The shotcrete head of claim 6, wherein the support ribs have a length greater than a distance between the fixing sleeve and the grouting nozzle, such that when the support ribs are closed, the other ends of the support ribs extend beyond the grouting nozzle, and the grouting nozzle is integrally covered by a protective cover on the support ribs.
8. The shotcrete head for preventing concrete sputtering according to claim 6 or 7, wherein the support ribs are matched with the protective cloth, so that the protective cover can be folded and unfolded, workers can be protected during grouting, and the grouting nozzle can be protected when grouting is not performed.
9. The shotcrete head of claim 1 wherein the thrust tube has one end with a diameter greater than the other end.
10. The shotcrete head of claim 1, wherein the inner side wall of the grouting nozzle is equidistantly provided with a plurality of grout accommodating grooves, so that a small amount of grout can be temporarily stored during guniting, and the grout accommodating amount in the grouting nozzle is increased.
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| CN201910284313.7A CN109914838B (en) | 2019-04-10 | 2019-04-10 | Prevent whitewashing head that concrete sputters |
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| CN201910284313.7A CN109914838B (en) | 2019-04-10 | 2019-04-10 | Prevent whitewashing head that concrete sputters |
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| CN109914838B true CN109914838B (en) | 2021-04-09 |
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| CN111472372A (en) * | 2020-04-28 | 2020-07-31 | 徐州易尚饰家装饰工程有限责任公司 | Side slope guniting travelling car |
| CN112554192B (en) * | 2020-11-26 | 2022-04-26 | 江苏建筑职业技术学院 | Slip casting device with protective structure |
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| CN207899660U (en) * | 2018-01-09 | 2018-09-25 | 恒信永耀塑胶五金（深圳）有限公司 | A kind of paint-spray robot |
| CN207775878U (en) * | 2018-01-17 | 2018-08-28 | 上海智平基础工程有限公司 | A kind of enlarged footing anchor structure |
| CN108201223A (en) * | 2018-02-05 | 2018-06-26 | 苏州市吴中区双龙油漆涂料有限公司 | A kind of paintbrush of belt scraping plate and protector |
| CN208586864U (en) * | 2018-06-06 | 2019-03-08 | 丽水市信裕机械制造有限公司 | A kind of building wall eminence powdering is mechanical |
| CN208517785U (en) * | 2018-07-27 | 2019-02-19 | 青海民族大学 | A kind of bituminous concrete stirring flush coater |
| CN109441068A (en) * | 2018-11-19 | 2019-03-08 | 镇江市丹徒区开源制刷厂 | A kind of paint rotary broom for preventing paint from sputtering |
| CN109595013A (en) * | 2019-01-22 | 2019-04-09 | 浙江科技学院 | Prevent the single hose concrete injection device of rebound |
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| CN109914838A (en) | 2019-06-21 |
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