A kind of device for detecting concrete duct sealing
Technical field
The utility model belongs to construction work detection technique field, relates to a kind of device for detecting concrete duct sealing.
Background technology
Concrete duct is also known as cement force pipe, reinforced concrete pipe, and it can build sewer pipe in base as urban construction, can sewer, flood control draining, and the upper hose used in some special factories and miness and farmland motor-pumped well.Generally be divided into: flat mouth reinforced concrete cement pipe, flexible tongue and groove reinforced concrete cement pipe, bell and spigot reinforced concrete cement pipe, F shaped steel bellmouth cement pipe, flat mouth cover ring interface cement pipe, tongue and groove cement pipe etc.
1200 reinforced concrete pipe closed-water tests permission water percolating capacities are that the pipeline of 1m length is not more than 40kg.In building site, most commonsense method stands on level land by concrete duct, and level land is placed water proof nylon membrane, and sealing concrete duct lower port periphery, pours water into from upper port, check height of water level every a period of time, judge infiltration degree and leak case.
Existing efficient detection equipment is as a kind of large-diameter pipeline sealing property detection device [application number: 200910242228.0], and this device comprises: cylindrical body; Be surrounded on described cylindrical body two ends respectively and after inflation and pipe under test contact internal walls form two annular air-pockets of a closed cavity with the outer wall of described cylindrical body and pipe under test inwall; The pore offered by described annular air-pocket is the air pump of described annular air-pocket inflation; The first through hole offered by described cylindrical body is the supercharge pump of described closed cavity water filling pressurization; Be arranged at two end faces of described cylindrical body respectively and can prevent described annular air-pocket from after closed cavity water filling pressurization, departing from some pieces of fan shape baffles of described cylindrical body.A kind of method using the sealing property of above-mentioned large-diameter pipeline sealing property detection device to large-diameter pipeline to detect is disclosed in this application file.By using above-mentioned apparatus and method, the seal for pipe joints Performance Detection under high hydraulic pressure can be realized, and the sealing property being applicable to various large-diameter pipeline detects.
And for example application number is: a kind of seal for pipe joints positioning monitoring system of 201410314101.6 and seal for pipe joints detection method, comprising: leak detection vehicle, and described leak detection vehicle comprises the first car body, the first car body is provided with baroceptor and first communication device; Positioning car, described positioning car comprises the second car body, the second car body is provided with drive unit, secondary communication device, processor, speed detector, crystal oscillator unit and ranging component; Intelligent terminal.This seal for pipe joints detection method comprises step: suppress in 1 pair of pipeline and be positioned in pipeline by seal for pipe joints positioning monitoring system: 2 move ahead detection, if air pressure change row duplicate detection, if air pressure change is little, then continues the detection that moves ahead.The device cost performance that seal for pipe joints positioning monitoring system adopts is high, and accurate positioning, can process in real time simultaneously, show test results, overcome the shortcoming of current various pipeline breaking detection method.Seal for pipe joints detection method utilizes two car detection mode that location can be made more direct and accurate, improves the efficiency of pipe detection.
Above-mentioned two kinds of equipment all more complicated, need to take larger space and manpower and materials, and are all in use detect pipeline.
Summary of the invention
The purpose of this utility model there are the problems referred to above for existing technology, propose a kind of good airproof performance, with strong points, the device that can be used for detecting concrete duct sealing, this device is by air pressure inside value and observe outside bubble to judge the sealing effectiveness of concrete duct.
The purpose of this utility model realizes by following technical proposal: a kind of device for detecting concrete duct sealing, comprise water tank, side plate, fixed head, there is the base of level table, described side plate is parallel to each other with fixed head and is all vertically connected on the level table of base, it is characterized in that, some guide pillars parallel to each other are equipped with between described side plate and fixed head, on described guide pillar, cover has the pressing plate that can slide along guide pillar, described pressing plate has and leans and the compressive plane of shutoff port with the port surface of concrete duct, described compressive plane is pasted with sealing gasket one, the side that the port of described fixed head and concrete duct is just right is pasted with sealing gasket two, described fixed head can lean with the port surface of concrete duct, described pressing plate has inlet channel, the venthole of described inlet channel is connected with the port of concrete duct, described venthole is positioned at the centre of sealing gasket one, the air admission hole of described inlet channel is positioned at the back side or the end face of pressing plate, described side plate is fixed with propulsion cylinder, the piston rod of propulsion cylinder is connected through side plate and pressing plate, described piston rod is parallel with guide pillar, described side plate upper end is fixed with air lift pump, water tank inner bottom part is provided with lifting cylinder, the upper end that base is fixed on lifting cylinder is promoted to do lower upper elevating movement by lifting cylinder, air lift pump is connected by draft tube with the inlet channel of pressing plate, draft tube is provided with variable valve from top to bottom successively, tensimeter, blowdown valve.
In above-mentioned a kind of device for detecting concrete duct sealing, described side plate being also fixed with bearing, described bearing is fixed with power supply box.
In above-mentioned a kind of device for detecting concrete duct sealing, described pressing plate has guide pin bushing, guide pillar passes guide pin bushing and is slidably matched with guide pin bushing.
In above-mentioned a kind of device for detecting concrete duct sealing, described sealing gasket two is made for elastomeric material.
In above-mentioned a kind of device for detecting concrete duct sealing, described water tank side bottom is provided with freeing port.
In above-mentioned a kind of device for detecting concrete duct sealing, described sealing gasket one is circular, and thickness is 1cm-2cm.
In above-mentioned a kind of device for detecting concrete duct sealing, described sealing gasket one is made for rubber or flexible plastic material.
In above-mentioned a kind of device for detecting concrete duct sealing, described water tank is that tempering transparent glass material is made.Be convenient for people to observe water tank inner case from outside.
Compared with prior art, this is applicable to the larger engineering pipeline of various volume for the device detecting concrete duct sealing, by measuring air pressure inside value and observing the leak degree that pipeline blibbing judges concrete duct, having to detect stablizes accurately, safe and reliable, automaticity advantages of higher.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure, 1, water tank; 2, side plate; 3, fixed head; 4, base; 5, guide pillar; 6, pressing plate; 7, sealing gasket one; 8, inlet channel; 9, propulsion cylinder; 10, piston rod; 11, sealing gasket two; 12, air lift pump; 13, freeing port; 14, lifting cylinder; 15, draft tube; 16, variable valve; 17, tensimeter; 18, blowdown valve; 19, bearing; 20, power supply box; 21, guide pin bushing.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1, for detecting the device of concrete duct sealing, comprise water tank 1, side plate 2, fixed head 3, have the base 4 of level table, side plate 2 is parallel to each other with fixed head 3 and on all vertical level table being connected in base 4, water tank 1 side bottom is provided with freeing port 13.Water tank 1 is made for tempering transparent glass material, is convenient for people to observe water tank 1 inner case from outside.
Be equipped with some guide pillars 5 parallel to each other between side plate 2 and fixed head 3, on described guide pillar 5, cover has the pressing plate 6 that can slide along guide pillar 5, pressing plate 6 have guide pin bushing 21, and guide pillar 5 is through guide pin bushing 21 and be slidably matched with guide pin bushing 21.
Pressing plate 6 has and leans and the compressive plane of shutoff port with the port surface of concrete duct, compressive plane is pasted with sealing gasket 1, sealing gasket 1 is circular, and thickness is 1cm-2cm, and sealing gasket 1 is made for rubber or flexible plastic material; The side that described fixed head 3 is just right with the port of concrete duct is pasted with sealing gasket 2 11, and sealing gasket 2 11 is made for elastomeric material, and described fixed head 3 can lean with the port of concrete duct; Side plate 2 is also fixed with bearing 19, bearing 19 is fixed with power supply box 20.
Pressing plate 6 has inlet channel 8, the venthole of inlet channel 8 is connected with the port of concrete duct, venthole is positioned at the centre of sealing gasket 1, the air admission hole of inlet channel 8 is positioned at the back side or the end face of pressing plate 6, side plate 2 is fixed with propulsion cylinder 9, the piston rod 10 of propulsion cylinder 9 is connected through side plate 2 and pressing plate 6, piston rod 10 is parallel with guide pillar 5, side plate 2 upper end is fixed with air lift pump 12, water tank 1 inner bottom part is provided with lifting cylinder 14, the upper end that base 4 is fixed on lifting cylinder 14 is promoted to do lower upper elevating movement by lifting cylinder 14, air lift pump 12 is connected by draft tube 15 with the inlet channel 8 of pressing plate 6, draft tube 15 is provided with variable valve 16 from top to bottom successively, tensimeter 17, blowdown valve 18.
Principle of work of the present utility model is such: start lifting cylinder 14, risen to by base 4 higher than water tank 1 edge 10cm-20cm; Be lifted into by loop wheel machine on the level table of base 4 by concrete duct, the lower surface of concrete duct and level table Altitude control are at 20cm-25cm; Start propulsion cylinder 9, pressing plate 6 is slided near the direction of fixed head 3, when pressing plate 6 moves to the distance 8cm-10cm position of concrete duct, by height and the horizontal cross position of loop wheel machine adjustment concrete duct, the port of concrete duct is alignd with the sealing gasket 1 on pressing plate 6, continue through propulsion cylinder 9 pressing plate 6 and concrete duct are close to by jail, make the both ends open of concrete duct be in squeezed state with sealing gasket 1 and sealing gasket 2 11 respectively; Again start lifting cylinder 14, make base 4 drop to bottom water tank 1; In water tank 1, fill water, concrete duct is immersed in water completely; Start air lift pump 12, inflating pressure in concrete duct; Observe tensimeter 17, stop air lift pump 12 when numerical value reaches 2Mpa-3Mpa, close variable valve 16; Observe the bubble situation in tensimeter 17 and water tank 1, the numerical value of tensimeter 17, in decline, illustrates that the sealing of concrete duct is poor, and can learn the leakage point of concrete duct from bubble generation, the numerical value of tensimeter 17 remains unchanged, and illustrates that the sealing of concrete duct is better; Open the water of 1 li, freeing port 13 emptying water tank, drive lifting cylinder 14 lifting concrete duct, and lift out by loop wheel machine, detect complete.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.