CN115387614A - Telescopic pneumatic vibrator, vibrating device and using method thereof - Google Patents
Telescopic pneumatic vibrator, vibrating device and using method thereof Download PDFInfo
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- CN115387614A CN115387614A CN202211066347.7A CN202211066347A CN115387614A CN 115387614 A CN115387614 A CN 115387614A CN 202211066347 A CN202211066347 A CN 202211066347A CN 115387614 A CN115387614 A CN 115387614A
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- air
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- pneumatic vibrator
- telescopic pneumatic
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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
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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
- E04G21/063—Solidifying concrete, e.g. by application of vacuum before hardening making use of vibrating or jolting tools
Abstract
The invention discloses a telescopic pneumatic vibrator, a vibrating device and a using method thereof. The telescopic pneumatic vibrator comprises a spiral spring, end plates arranged at two ends of the spiral spring and a hollow pipe; and the annular folded air film is sleeved on the spiral spring, two ends of the annular folded air film are connected to the end plate and the hollow pipe, and air film holes are distributed around the annular folded air film. The invention can improve the grouting quality of the concrete prefabricated part.
Description
Technical Field
The invention relates to the field of concrete vibration, in particular to a telescopic pneumatic vibrator, a vibrating device and a using method thereof.
Background
The concrete prefabricated part is constructed by grouting through narrow and small pouring channels. At present, in narrow pouring pore canals, devices and methods for assisting in discharging air in the pore canals and vibrating grout in the pore canals are not available, and once grouting is not compact and incomplete in the pore canals, the construction quality of concrete prefabricated parts is difficult to guarantee. Therefore, how to discharge the air in the pouring duct and improve the grouting quality of the concrete prefabricated part becomes a problem to be solved urgently by the technical personnel in the field.
Disclosure of Invention
The invention aims to provide a telescopic pneumatic vibrator, a vibrating device and a using method thereof, and aims to solve the problem of poor grouting quality of a concrete prefabricated part.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: a telescopic-type pneumatic vibrator, comprising:
the spiral spring is linear;
an end plate disposed at one end of the coil spring;
a hollow tube provided at the other end of the coil spring;
and the annular folded air film is sleeved on the spiral spring, two ends of the annular folded air film are connected to the end plate and the hollow pipe, and air film holes are distributed around the annular folded air film.
Further, in the telescopic pneumatic vibrator provided by the invention, the annular corrugated air film is a corrugated pipe.
In order to solve the above technical problems, another technical solution provided by the present invention is: the utility model provides a vibration device, includes the aspiration pump and is in through the pipeline intercommunication last the above-mentioned concertina type pneumatic vibrator of aspiration pump, be provided with gaseous automatic backflow balance valve door on the aspiration pump, be provided with the exhaust hole on the aspiration pump.
Further, in the vibrating device provided by the present invention, the automatic gas backflow balancing valve includes a housing, the housing is provided with an upper air hole, a lower air hole and a side air hole, a spring plate capable of bidirectionally bending relative to a horizontal plane is arranged on a side wall of the housing above the side air hole in a horizontal direction, a convex sealing member sealed or separated from the upper air hole is arranged above the spring plate, a compression spring is arranged between a lower part of the spring plate and a bottom surface of the housing, and an air isolating cushion is arranged on the bottom surface of the housing between the lower air hole and the side air hole in a surrounding and sealing manner;
setting the air pressure outside the air pump to be P0, the air pressure inside the air pump to be P1, the elastic force of a compression spring to be F1, the elastic force of a spring piece to be F2 and the area of the lower surface of the convex sealing piece to be A;
when P0-P1< (F1-F2)/A is detected, the automatic gas backflow balance valve is in a closed state, at the moment, the compression spring is expanded from a compression state to a tension state, the spring piece is separated from the gas isolating pad and bent upwards to deform, and the convex sealing piece is hermetically connected with the upper gas hole of the shell so as to prevent the external gas pressure outside the air pump from entering the air pump;
when P0-P1> (F2 + F1)/A, the automatic gas backflow balance valve is in an open state, at the moment, a compression spring is compressed from a stretching state to a contracting state, the spring piece bends downwards to deform and abuts against the air isolating pad, the convex sealing piece is separated from the upper air hole of the shell, and the side air hole and the lower air hole are isolated, so that external pump air pressure outside the air suction pump enters the air suction pump through the upper air hole, the spring piece outside the convex sealing piece area and the side air hole.
In order to solve the above technical problem, another technical solution provided by the present invention is: a method of using a tamper apparatus according to the above, comprising:
stretching a telescopic pneumatic vibrator into a pouring hole channel of a prefabricated part to be constructed;
before and during grouting of the perfusion hole channel through the perfusion equipment, starting the air pump to pump air in the perfusion hole channel through an air film hole of the telescopic pneumatic vibrator through a pipeline and discharging the air from an air exhaust hole of the air pump;
when the automatic gas backflow balancing valve is in a closed state, the vibrating device is in an air exhaust state, when slurry wraps a gas film hole of the annular corrugated gas film, the annular corrugated gas film is caused to contract synchronously along with the spiral spring due to negative pressure in the telescopic pneumatic vibrator, the telescopic pneumatic vibrator generates vertical contraction, so that the slurry in the filling hole channel is compacted and flows, and the gas in the slurry is discharged to the vicinity of the telescopic pneumatic vibrator;
when the automatic gas backflow balance valve is in an open state, the vibrating device is in a gas return state, after the gas pressure in the telescopic pneumatic vibrator is recovered, the annular corrugated gas film synchronously extends along with the spiral spring, the telescopic pneumatic vibrator generates vertical extrusion, so that the slurry in the filling hole channel is compacted and flows, the gas in the slurry is discharged to the position near the telescopic pneumatic vibrator, and the air in the filling hole channel is discharged through the gas film hole of the annular corrugated gas film;
and repeatedly performing vertical shrinkage and vertical extrusion in the pouring hole channel through a telescopic pneumatic vibrator so as to compact the slurry in the pouring hole channel and completely discharge the gas in the pouring hole channel.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a telescopic pneumatic vibrator, a vibrating device and a using method thereof.A pipeline and a hollow pipe are connected to an air extracting pump, and after the telescopic pneumatic vibrator is inserted into a perfusion hole channel of a prefabricated part, the air extracting pump is started to extract air from the perfusion hole channel so as to discharge the air in the perfusion hole channel; simultaneously, through the repeated shrink of the pneumatic vibrator of concertina type, the extension is in order to carry out shrink, extrusion, flow to the thick liquids in the filling pore to the thick liquids compaction in will filling the pore, in order to carry out closely knit and integrality to prefabricated component and fill, thereby improved the grout quality of concrete prefabricated component.
Drawings
Fig. 1 is a schematic structural view of a tamper;
fig. 2 to 6 are flow charts of the tamper apparatus used in the grouting process;
FIG. 7 is a schematic sectional view of a telescopic type pneumatic vibrator;
FIG. 8 isbase:Sub>A schematic view of the structure of FIG. 7 at A-A;
FIG. 9 is a schematic view of the structure of the automatic gas return balancing valve in a closed state;
FIG. 10 is a schematic diagram of the gas automatic backflow balancing valve in an open state;
shown in the figure:
10. a vibrating device;
100. the pneumatic vibrator comprises a telescopic pneumatic vibrator 110, a spiral spring 120, end plates 130, a hollow pipe 140, an annular corrugated air film 141 and air film holes;
200. 210, an automatic gas backflow balance valve 211, a shell 2111, an upper gas hole, 2112, a side gas hole, 2113, a lower gas hole, 212, a spring plate, 213, a convex sealing element, 214, a compression spring, 215, an air isolating pad, 220, a gas exhaust hole, PO, external gas pressure of the pump, P1 and internal gas pressure of the pump;
300. a pipeline;
400. prefabricated parts, 410, a pouring hole channel;
500. concrete;
600. no gas was vented.
Detailed Description
The invention is described in detail below with reference to the attached drawing figures: the advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is provided for the purpose of facilitating and clearly illustrating embodiments of the present invention.
Example one
Referring to fig. 7 to 8, a telescopic pneumatic vibrator 100 according to an embodiment of the present invention includes a coil spring 110, an end plate 120, a hollow tube 130, and a hoop-corrugated air film 140, wherein:
the coil spring 110 is a linear type.
And an end plate 120 disposed at one end of the coil spring 110.
And a hollow tube 130 provided at the other end of the coil spring 110.
And a circumferential corrugated air film 140, which is sleeved on the spiral spring 110, and two ends of the circumferential corrugated air film 140 are connected to the end plate 120 and the hollow tube 130, and air film holes 141 are distributed around the circumferential corrugated air film 140. Wherein the film holes 141 include, but are not limited to, round holes, square holes, regular polygon holes, trapezoidal holes, etc. The circumferential corrugated air film 140 may be a corrugated tube or a cloth structure.
The hollow tube 130 and the annular corrugated air film 140 form an air guide cavity.
Example two
Referring to fig. 1 to 8, a second embodiment of the present invention provides a vibrating apparatus 10, including a suction pump 200 and the above-mentioned telescopic pneumatic vibrator 100 connected to the suction pump 200 through a pipe 300, wherein the suction pump 200 is provided with an automatic gas backflow balancing valve 210, and the suction pump 200 is provided with an air vent 220.
Referring to fig. 9 to 10, in the vibrating apparatus 10 according to the second embodiment of the present invention, the gas automatic backflow balancing valve 210 includes a housing 211, an upper air hole 2111, a lower air hole 2113, and a side air hole 2112 are disposed on the housing 211, a spring plate 212 capable of bidirectionally bending with respect to a horizontal plane is disposed on a side wall of the housing 211 above the side air hole 2112 in a horizontal direction, a convex sealing member 213 sealed or separated from the upper air hole 2111 is disposed above the spring plate 212, a compression spring 214 is disposed between a lower portion of the spring plate 212 and a bottom surface of the housing 211, and an air isolating pad 215 is disposed around and sealed on the bottom surface of the housing 211 between the lower air hole 2113 and the side air hole 2112.
The external pump air pressure outside the air pump 200 is set to P0, the internal pump air pressure inside the air pump 200 is set to P1, the elastic force of the compression spring 214 is set to F1, the elastic force of the spring piece 212 is set to F2, and the area of the lower surface of the convex seal 213 is set to a.
When P0-P1< (F1-F2)/A, the gas automatic backflow balancing valve 210 is in a closed state, at this time, the compression spring 214 is expanded from a compressed state to an extended state, the spring leaf 212 is separated from the air isolating pad 215 and is bent upwards, and the convex sealing member 213 is in sealing connection with the upper air hole 2111 of the housing 211, so as to prevent the external pump air pressure outside the air pump 200 from entering the air pump 200.
When P0-P1> (F2 + F1)/a, the automatic gas backflow balancing valve 210 is in an open state, and at this time, the compression spring 214 is compressed from a stretched state to a contracted state, and the spring plate 212 bends and deforms downward to abut against the air isolating pad 215, so that the male seal 213 is separated from the upper air hole 2111 of the housing 211 and the side air holes 2112 and 2113 are separated, so that the external pump air pressure outside the air pump 200 enters the air pump 200 through the upper air hole 2111, the spring plate 212 outside the area of the male seal 213 and the side air holes 2112.
EXAMPLE III
Referring to fig. 1 to 10, a third embodiment of the present invention provides a method for using the vibrating apparatus 10, which includes the following steps:
step 701, referring to fig. 1, vertically extending the telescopic pneumatic vibrator 100 into the pouring tunnel 410 of the prefabricated part 400 to be constructed.
Referring to fig. 2, before and during the grouting of the perfusion channel 410 by the perfusion apparatus, the air pump 200 is started to pump the air in the perfusion channel 410 through the air film hole 141 of the telescopic pneumatic vibrator 100 through the pipeline 300 and discharge the air from the air discharge hole 220 of the air pump 200. At this point, unexhausted gas 600 is present within irrigation channel 410.
In step 703, referring to fig. 3, when the automatic gas backflow balancing valve 210 is in a closed state, the vibrating device 10 is in an air-extracting state, and when the slurry wraps the air film hole 141 of the annular corrugated air film 140, the annular corrugated air film 140 is caused to contract synchronously with the coil spring 110 due to negative pressure in the telescopic pneumatic vibrator 100, and the telescopic pneumatic vibrator 100 contracts vertically, so that the slurry in the filling hole 410 is compacted and flows, and the gas in the slurry is discharged to the vicinity of the telescopic pneumatic vibrator 100. At this time, the non-exhausted gas 600 is present in the injection hole 410. Wherein the slurry is concrete 500.
Step 704, referring to fig. 4, when the automatic gas backflow balancing valve 210 is in an open state, the vibrating device 10 is in a gas return state, after the air pressure in the telescopic pneumatic vibrator 100 is recovered, the circumferential corrugated air film 140 extends synchronously with the coil spring 110, the telescopic pneumatic vibrator 100 generates vertical extrusion, so that the slurry in the filling duct 410 is compacted and flows, the gas in the slurry is discharged to the vicinity of the telescopic pneumatic vibrator 100, and the gas in the filling duct 410 is discharged through the air film hole 141 of the circumferential corrugated air film 140. At this time, the non-exhausted gas 600 is present in the injection hole 410.
Step 705, referring to fig. 3 to 5, the telescopic pneumatic vibrator 100 repeatedly performs vertical contraction and vertical extrusion in the pouring duct 410 to compact the slurry in the pouring duct 410 and discharge all the gas therein. That is, steps 703-704 are repeated to compact the slurry and simultaneously exhaust the gas in pouring channel 410 through step 702.
Step 706, the telescopic pneumatic vibrator 100 is pulled out from the filling duct 410, and the step 703 and the step 704 are repeated in the pulling-out process until all the telescopic pneumatic vibrator 100 is pulled out, and the reciprocating body for air suction and air return is stopped.
Referring to fig. 1 to 10, in the telescopic pneumatic vibrator 100, the vibrating device 10 and the method for using the same according to the embodiment of the present invention, the pipe 300 and the hollow pipe 130 are connected to the air pump 200, and after the telescopic pneumatic vibrator 100 is vertically inserted into the filling duct 410 of the prefabricated component 400, the air pump 200 is started to pump the filling duct 410, so as to discharge the air in the filling duct 410; meanwhile, the slurry in the filling hole 410 is contracted and extruded through repeated contraction and expansion of the telescopic pneumatic vibrator 100, so that the slurry flows, the slurry in the filling hole 410 is compacted, the prefabricated part 400 is compactly and integrally filled, air bubbles in the filling hole 410 can be avoided, and the grouting quality of the concrete prefabricated part 400 is improved. After the gas in the filling duct 410 is exhausted, when the telescopic pneumatic vibrator 100 is wrapped by the fluid state, the helical spring 110 is controlled to contract and expand along the length direction through gas suction and release to form vibration, and the annular corrugated gas film 140 disturbs the fluid nearby to form the vibration effect on the fluid such as slurry and the like. That is, the telescopic pneumatic vibrator 100 repeatedly performs vertical contraction and vertical extrusion to vibrate the slurry in the filling duct 410.
The telescopic pneumatic vibrator 100, the vibrating device 10 and the use method thereof provided by the embodiment of the invention can realize the filling compactness of the flow material in the filling duct 410 in narrow inner filling ducts 410 such as sleeves and the like, and can also play a good role in secondary filling of the non-compact defect in the filling duct 410.
In the telescopic pneumatic vibrator 100, the vibrating device 10 and the method for using the same according to the embodiments of the present invention, the automatic gas backflow balancing valve 210 is automatically and mechanically opened and closed by the compression spring 214 according to the pressure difference, so that the air pump 200 can automatically release the telescopic pneumatic vibrator 100 after pumping air to reach a certain negative pressure, and perform the actions of pumping air and releasing air in a reciprocating and circulating manner. The telescopic pneumatic vibrator 100 mainly comprises a circumferential corrugated air film 140 wrapped outside a helical spring 110, the helical spring 110 is wrapped by the circumferential corrugated air film 140 after being corrugated, and a plurality of trapezoidal small holes and other air film holes 141 are formed in the circumferential corrugated air film 140; once the outer fluid material wraps around the gas film 140, the trapezoidal shaped orifice automatically closes due to the deformation of the pressure differential to prevent fluid flow into the tube.
Before the fluid material is injected into the grouting hole 410, the telescopic pneumatic vibrator 100 is inserted in advance and is connected with the air pump 200 to be started, and during the process that the fluid material such as concrete 500 is injected into the grouting hole 410, the air in the grouting hole 410 is pumped out of the grouting hole to form negative pressure, so that the fluid material can flow into the grouting hole 410 more compactly and efficiently. When the telescopic pneumatic vibrator 100 is wrapped by the fluid material after the filling orifice 410 is filled, the negative pressure in the telescopic pneumatic vibrator 100 is rapidly raised due to the continuous air suction of the air suction pump 200, so that the telescopic pneumatic vibrator 100 is contracted and deformed; when the negative pressure reaches a certain condition, the automatic air backflow balance valve 210 on the air pump 200 automatically starts to work to release external air to enter the air pump 200, so that the negative pressure value in the telescopic pneumatic vibrator 100 is reduced, and the telescopic pneumatic vibrator 100 generates recovery resilience due to the spring in the pipe. The telescopic pneumatic vibrator 100 is reciprocally contracted and rebounded to vibrate the fluid material in the filling hole 410 and discharge the residual gas in the hole.
The present invention is not limited to the above-described specific embodiments, and it is apparent that the above-described embodiments are some, not all, of the embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention. Other levels of modification and variation of the present invention may be made by those skilled in the art. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims.
Claims (5)
1. A telescopic pneumatic vibrator, comprising:
the spiral spring is linear;
an end plate disposed at one end of the coil spring;
a hollow tube provided at the other end of the coil spring;
and the annular corrugated air film is sleeved on the spiral spring, two ends of the annular corrugated air film are connected to the end plate and the hollow pipe, and air film holes are distributed around the annular corrugated air film.
2. A telescopic pneumatic vibrator according to claim 1, wherein the circumferentially corrugated gas membrane is a corrugated tube.
3. A vibrating device, comprising a suction pump and the telescopic pneumatic vibrator of claim 1 connected to the suction pump through a pipe, wherein the suction pump is provided with an automatic gas return balance valve, and the suction pump is provided with an exhaust hole.
4. The vibrating device according to claim 3, wherein the automatic gas backflow balancing valve comprises a housing, an upper air hole, a lower air hole and a side air hole are formed in the housing, a spring piece capable of bidirectionally bending relative to a horizontal plane is arranged on a side wall of the housing above the side air hole in the horizontal direction, a convex sealing piece which is sealed or separated from the upper air hole is arranged above the spring piece, a compression spring is arranged between the lower part of the spring piece and the bottom surface of the housing, and an air isolating pad is arranged on the bottom surface of the housing between the lower air hole and the side air hole in a surrounding and sealing manner;
setting the air pressure outside the air pump to be P0, the air pressure inside the air pump to be P1, the elastic force of a compression spring to be F1, the elastic force of a spring piece to be F2 and the area of the lower surface of the convex sealing piece to be A;
when P0-P1< (F1-F2)/A is detected, the automatic gas backflow balance valve is in a closed state, at the moment, the compression spring is expanded from a compression state to a tension state, the spring piece is separated from the gas isolating pad and bent upwards to deform, and the convex sealing piece is hermetically connected with the upper gas hole of the shell so as to prevent the external gas pressure outside the air pump from entering the air pump;
when P0-P1> (F2 + F1)/A, the gas automatic backflow balance valve is in an open state, at the moment, a compression spring is compressed from a stretching state to a contracting state, the spring leaf bends downwards to deform and is abutted to the air isolating cushion, so that the convex sealing piece is separated from the upper air hole of the shell and the side air hole and the lower air hole are isolated, and the external pumping air pressure outside the air suction pump enters the air suction pump through the upper air hole, the spring leaf outside the convex sealing piece area and the side air hole.
5. A method of using a tamper arrangement according to claim 4,
stretching a telescopic pneumatic vibrator into a pouring hole channel of a prefabricated part to be constructed;
before and during grouting of the perfusion hole channel through the perfusion equipment, starting the air pump to pump air in the perfusion hole channel through an air film hole of the telescopic pneumatic vibrator through a pipeline and discharging the air from an air exhaust hole of the air pump;
when the automatic gas backflow balancing valve is in a closed state, the vibrating device is in an air exhaust state, when slurry wraps a gas film hole of the annular corrugated gas film, the annular corrugated gas film is caused to contract synchronously along with the spiral spring due to negative pressure in the telescopic pneumatic vibrator, the telescopic pneumatic vibrator generates vertical contraction, so that the slurry in the filling hole channel is compacted and flows, and the gas in the slurry is discharged to the vicinity of the telescopic pneumatic vibrator;
when the automatic gas backflow balance valve is in an open state, the vibrating device is in a gas return state, after the gas pressure in the telescopic pneumatic vibrator is recovered, the annular corrugated gas film synchronously extends along with the spiral spring, the telescopic pneumatic vibrator generates vertical extrusion, so that the slurry in the filling hole channel is compacted and flows, the gas in the slurry is discharged to the vicinity of the telescopic pneumatic vibrator, and the air in the filling hole channel is discharged through the gas film hole of the annular corrugated gas film;
and repeatedly performing vertical contraction and vertical extrusion in the pouring hole channel through a telescopic pneumatic vibrator so as to compact the slurry in the pouring hole channel and completely discharge the gas in the pouring hole channel.
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| CN109537903A (en) * | 2018-12-07 | 2019-03-29 | 彭从文 | Corrugated electromagnetism concrete vibrator |
| KR20200002362U (en) * | 2019-04-17 | 2020-10-27 | 김춘성 | Concrete penetration membrane structure |
| CN210263958U (en) * | 2019-07-05 | 2020-04-07 | 北京中檀生态园林工程有限公司 | Plug-in vibrator |
| CN110258570A (en) * | 2019-07-18 | 2019-09-20 | 中交第一航务工程局有限公司 | A kind of flexible plug-in type concrete vibrating framed bent |
| CN110441502A (en) * | 2019-07-19 | 2019-11-12 | 广州大学 | A kind of the corrugated pipe forming sleeve and forming method of cement-based material self-constriction test |
| CN212072329U (en) * | 2019-12-11 | 2020-12-04 | 郑丽红 | Cement prefab low pressure casting device |
| CN113073851A (en) * | 2021-01-07 | 2021-07-06 | 丘永梅 | Surface point vibration type vibrating rod |
| CN214834875U (en) * | 2021-08-02 | 2021-11-23 | 江苏建宇建设集团有限公司 | Air-entraining concrete vibrating rod |
| CN114718311A (en) * | 2022-03-09 | 2022-07-08 | 中冶建工集团有限公司 | Air pump for air exhaust of steel column base plate opening and grouting construction method thereof |
| CN114607149A (en) * | 2022-03-10 | 2022-06-10 | 中青建安建设集团有限公司 | Construction is with bayonet high frequency concrete vibrator that has splashproof function |
| CN116005962A (en) * | 2022-12-26 | 2023-04-25 | 兴泰建设集团有限公司 | Buttress concrete vibrating device for shock insulation engineering construction |
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| CN115387614B (en) | 2023-08-08 |
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