阅读说明：本技术 混凝土灌注桩气泡消除器 (Concrete filling pile bubble eliminator ) 是由 李宜欣 陈淮松 李泽波 于 2019-09-23 设计创作，主要内容包括：本发明涉及土木工程技术领域,更具体地说,它涉及一种混凝土灌注桩气泡消除器,其技术方案要点是：包括浇筑管,浇筑管下端的侧壁设有出料孔,浇筑管下端连接有气泡消除器,气泡消除器包括电机以及搅拌轴,搅拌叶片自上而下依次设置有多层,搅拌轴侧壁的下端设置有螺旋叶片,搅拌叶片包括侧边呈圆弧过渡的调节板以及内部呈中空设置的安装板,相对的另一侧端呈封闭设置,安装板的封闭端连接于搅拌轴的侧壁,调节板活动套接且可伸出于安装板,安装板设置有定位部件；还包括限位套筒,浇筑管和气泡消除器均设置于限位套筒内,搅拌叶片的外端抵于限位套筒的内壁上。具有能够有效去除混凝土灌注桩内的气泡,且适用于不同直径的桩孔的优点。(The invention relates to the technical field of civil engineering, in particular to a concrete filling pile bubble eliminator, which has the technical scheme that: the device comprises a pouring pipe, wherein a discharge hole is formed in the side wall of the lower end of the pouring pipe, a bubble eliminator is connected to the lower end of the pouring pipe and comprises a motor and a stirring shaft, multiple layers of stirring blades are sequentially arranged from top to bottom, a spiral blade is arranged at the lower end of the side wall of the stirring shaft, each stirring blade comprises an adjusting plate with a circular arc transition side edge and a mounting plate with a hollow interior, the other opposite side end of the stirring blade is in a closed arrangement, the closed end of the mounting plate is connected to the side wall of the stirring shaft, the adjusting plate is; still include spacing sleeve, pour pipe and bubble annihilator and all set up in spacing sleeve, stirring vane's outer end supports on spacing sleeve's inner wall. The method has the advantages of effectively removing air bubbles in the concrete filling pile and being suitable for pile holes with different diameters.)

1. The utility model provides a bored concrete pile bubble annihilator, includes that can stretch into bored concrete pile downthehole pouring pipe (1), characterized by: the device comprises a pouring pipe (1), wherein a discharge hole (2) penetrating through the inner cavity of the pouring pipe (1) is formed in the circumferential direction of the side wall of the lower end of the pouring pipe (1), a bubble eliminator is connected to the lower end of the pouring pipe (1), the bubble eliminator comprises a motor (3) with an output shaft vertically arranged and a stirring shaft (4) connected to the output shaft, stirring blades (5) with adjustable lengths are arranged on the side wall of the stirring shaft (4), multiple layers of the stirring blades (5) are sequentially arranged from top to bottom, spiral blades (6) are arranged at the lower end of the side wall of the stirring shaft (4), and the upper ends of the spiral blades (6) are close to; stirring vane (5) are including the side be regulating plate (52) of circular arc transition and inside be mounting panel (51) that the cavity set up, a side of mounting panel (51) is the opening setting, and another relative side is the closed setting, the blind end of mounting panel (51) is connected in the lateral wall of (mixing) shaft (4), regulating plate (52) activity cup joints and can stretch out mounting panel (51), mounting panel (51) are provided with the locating component who is used for fixed regulating plate (52) position of sliding; still include stop collar (7), it all sets up in stop collar (7) to pour pipe (1) and bubble eliminator, the outer end of stirring vane (5) supports on the inner wall of stop collar (7).

2. The concrete cast-in-place pile bubble eliminator as recited in claim 1, wherein: the utility model discloses a bolt, including adjusting plate (52), locating component, mounting panel (51) are run through to first bolt (8), mounting panel (51) are equipped with and supply first bolt (8) to pass and slide complex rectangular hole (9) with first bolt (8), the open end of mounting panel (51) is followed to rectangular hole (9) to the direction setting of blind end, the surface of adjusting plate (52) is kept away from in mounting panel (51) to the head butt of first bolt (8).

3. The concrete cast-in-place pile bubble eliminator as recited in claim 2, wherein: the outer wall of the mounting plate (51) is provided with scale marks (11) along the length direction of the strip-shaped hole (9).

4. The concrete cast-in-place pile bubble eliminator as recited in claim 1, wherein: each layer stirring vane (5) has a plurality ofly and around (mixing) shaft (4) circumference evenly distributed, and two-layer from top to bottom stirring vane (5) are the setting of staggering.

5. The concrete cast-in-place pile bubble eliminator as recited in claim 1, wherein: stirring vane (5) and (mixing) shaft (4) can be dismantled and connect, fixed cover has been connect installation cassette (12) on (mixing) shaft (4), the lateral wall of installation cassette (12) is provided with dovetail (21) along the axial length direction of (mixing) shaft (4), the lateral wall of mounting panel (51) be provided with dovetail (21) the complex dovetail block (22) that slides, the top of dovetail (21) is the opening setting, (mixing) shaft (4) joint cooperation has and is used for the lid to close dovetail (21) open-ended snap ring (13), offer bayonet socket (14) of lock in (mixing) shaft (4) on snap ring (13), bayonet socket (14) be provided with on snap ring (13) and (mixing) shaft (4) and be used for closure and unblock the closure subassembly of snap ring (13).

6. The concrete cast-in-place pile bubble eliminator as recited in claim 5, wherein: the locking assembly comprises positioning blocks (15) arranged on two opposite sides of the stirring shaft (4), second bolts (16) arranged on the positioning blocks (15), nuts (17) sleeved at the tail parts of the second bolts (16) in a threaded manner, and notches (18) arranged on the side edges of the elastic clamping rings (13) and corresponding to the second bolts (16), wherein the heads of the second bolts (16) are rotatably connected to the positioning seats, the second bolts (16) can rotate towards the upper surfaces of the positioning blocks (15) or the directions of the outer sides of the positioning blocks (15), and when the second bolts (16) are in inserting fit with the notches (18), one sides of the nuts (17) close to the heads of the second bolts (16) are in butt fit with the upper surfaces of the elastic clamping rings (13).

7. The concrete cast-in-place pile bubble eliminator as recited in claim 6, wherein: the bottom edge of the inner cavity of the mounting plate (51) is obliquely and downwards arranged from one side of the stirring shaft (4) to one side far away from the stirring shaft (4).

8. The concrete cast-in-place pile bubble eliminator as recited in claim 1, wherein: a plurality of through grooves (10) are arranged at one side end, far away from the mounting plate (51), of the adjusting plate (52) along the sliding direction of the adjusting plate (52), and the plurality of through grooves (10) are arranged in sequence vertically downwards.

9. The concrete cast-in-place pile bubble eliminator as recited in claim 6, wherein: gasket (19) have been cup jointed in second bolt (16), gasket (19) are located between nut (17) and snap ring (13), nut (17) and gasket (19) fixed connection, one side fixed surface that gasket (19) deviate from snap ring (13) is provided with knob (20).

10. The concrete cast-in-place pile bubble eliminator as recited in claim 9, wherein: and a magnet is arranged on the elastic snap ring (13), and the magnet is positioned in the gap (18).

Technical Field

The invention relates to the technical field of civil engineering, in particular to a concrete cast-in-place pile bubble eliminator.

Background

The cast-in-place concrete pile is formed by directly forming holes on site pile positions, and then pouring concrete in the holes or placing a reinforcement cage and pouring the concrete. The method is characterized in that the pile diameter can be selected according to the requirement, the pile with the diameter larger than that of the precast pile can be built, compared with a hammering method of sinking into the pile, the construction noise and the vibration are much smaller, and the method can be applied to various foundations.

The existing concrete cast-in-place pile usually adopts a pipe sinking cast-in-place pile, and utilizes hammering pipe sinking equipment to sink pipes and pull pipes to form the pile, which is called a hammering pipe sinking cast-in-place pile, but the construction quality is not easy to control, the pipe pulling is too fast, the pile body is easy to shrink neck, and the pile which is poured in advance is easy to generate inclined fracture or even dislocation due to the soil squeezing effect because of the soil squeezing pile. In the construction process, hammering can generate loud noise, and vibration can affect surrounding buildings, so that the pile is not suitable for being applied in urban areas, and the pile is forbidden to be used in the urban areas in some cities. If can solve the vibrating or stirring problem of bored concrete pile, the bubble in the concrete of will pouring is driven out, can promote bored concrete pile's closely knit degree well, increases bored concrete pile's bearing capacity, so need carry out technological improvement.

Disclosure of Invention

In view of the above-mentioned deficiencies of the prior art, an object of the present invention is to provide a concrete cast-in-place pile bubble eliminator, which has the advantages of effectively eliminating bubbles in a concrete cast-in-place pile and being suitable for pile holes with different diameters.

The technical purpose of the invention is realized by the following technical scheme: a concrete filling pile bubble eliminator comprises a pouring pipe capable of extending into a filling pile hole, wherein a discharge hole penetrating through an inner cavity of the pouring pipe is formed in the circumferential direction of the side wall of the lower end of the pouring pipe, the lower end of the pouring pipe is connected with the bubble eliminator, the bubble eliminator comprises a motor with an output shaft vertically arranged and a stirring shaft connected to the output shaft, stirring blades with adjustable length are arranged on the side wall of the stirring shaft, multiple layers of the stirring blades are sequentially arranged from top to bottom, spiral blades are arranged at the lower end of the side wall of the stirring shaft, and the upper ends of the spiral blades are close to the lower end of the stirring blade; the stirring blade comprises an adjusting plate with circular arc transition side edges and a mounting plate with hollow interior, one side end of the mounting plate is provided with an opening, the other side end of the mounting plate is provided with a closed end, the closed end of the mounting plate is connected to the side wall of the stirring shaft, the adjusting plate is movably sleeved and can extend out of the mounting plate, and the mounting plate is provided with a positioning component for fixing the sliding position of the adjusting plate; still include limit sleeve, pour pipe and bubble annihilator and all set up in limit sleeve, stirring vane's outer end supports on limit sleeve's inner wall.

By adopting the technical scheme, the device can stir concrete when the pouring pipe extends into the pile hole for pouring, and the motor drives the stirring shaft and the stirring blades to rotate, so that the fluidity of the concrete is improved, the concrete is stirred more fully and uniformly, and air bubbles in the poured concrete are effectively removed; and limit sleeve's setting, during the use, can put into the stake hole earlier limit sleeve, then put into limit sleeve from limit sleeve's upper portion opening with pouring pipe and bubble annihilator, it descends from limit sleeve to pour pipe and bubble annihilator, when descending to preset position, mention limit sleeve again, perhaps pour pipe and bubble annihilator earlier and put into limit sleeve from limit sleeve's upper portion opening with pouring pipe and bubble annihilator earlier, then descend limit sleeve, pour pipe and bubble annihilator together, when descending to preset position, mention limit sleeve again, these two kinds of methods can both prevent that the stirring column from blocking in the steel reinforcement cage clearance, effectively protect the bubble annihilator.

Preferably, the locating component is threaded connection in the first bolt of regulating plate side, first bolt runs through the mounting panel, the mounting panel is equipped with and supplies first bolt to pass and with the rectangular hole of first bolt sliding fit, the surface of regulating plate is kept away from in the mounting panel to the head butt of first bolt.

Through adopting above-mentioned technical scheme, rotatory first bolt makes the head of first bolt and mounting panel keep away from the surface of regulating plate and supports tightly, and then can convenient and fast ground to the regulating plate location, and the regulating plate is loosened to the first bolt of reverse rotation, can swiftly adjust the position of regulating plate, and simple structure is practical, convenient and fast's realization stirring vane's length adjustment to be applicable to the stake hole of different diameters.

Preferably, the outer wall of the mounting plate is provided with scale marks along the length direction of the strip hole.

Through adopting above-mentioned technical scheme, the setting of scale mark has improved the regulation precision of staff to the adjusting plate position.

Preferably, each layer of stirring vane has a plurality ofly and around the stirring shaft circumference evenly distributed, and upper and lower two-layer stirring vane is the setting of staggering.

Through adopting above-mentioned technical scheme, stirring vane is even more quick to the stirring of concrete, and stirring effect is better.

Preferably, stirring vane and (mixing) shaft can dismantle the connection, the fixed cover has been connected the installation cassette on the (mixing) shaft, the lateral wall of installation cassette is provided with the dovetail along the axial length direction of (mixing) shaft, the lateral wall of mounting panel be provided with the dovetail slides complex dovetail piece, the top of dovetail is the opening setting, the cooperation of (mixing) shaft joint has and is used for the lid to close dovetail open-ended snap ring, the lock has been seted up in the bayonet socket of (mixing) shaft on the snap ring, the bayonet socket be provided with on snap ring and the (mixing) shaft and be used for closure and unblock snap ring's closure subassembly.

Through adopting above-mentioned technical scheme, the cooperation of sliding of dovetail and forked tail piece has realized the preliminary location cooperation between stirring vane and the (mixing) shaft, has realized dismantling the connection between the two simultaneously under the effect of closure subassembly, and the later stage wherein stirring vane damages the back of being convenient for and the change that corresponds need not to change whole device, has improved the life of device.

Preferably, the locking assembly comprises positioning blocks arranged on two opposite sides of the stirring shaft, second bolts arranged on the positioning blocks, nuts sleeved on the tail portions of the second bolts in a threaded manner, and notches arranged on the side edges of the elastic clamping rings and corresponding to the second bolts, wherein the heads of the second bolts are rotatably connected to the positioning seats, the second bolts can rotate in the direction perpendicular to the upper surfaces of the positioning blocks or in the direction of the outer sides of the positioning blocks, and when the second bolts are in splicing fit with the notches, one side, close to the heads of the second bolts, of the nuts is in butt fit with the upper surfaces of the elastic clamping rings.

Through adopting above-mentioned technical scheme, when needs fit the notch department of dovetail with the snap ring lid, overturn the outside of second bolt toward the mounting panel, cause to block in order to reduce the second bolt to the installation of snap ring, fit the notch department back of dovetail with snap ring butt lid, make breach and second bolt correspond, at this moment, up rotate the second bolt to with the breach grafting cooperation, and with swivel nut, make the nut support tightly with the upper surface of snap ring, can realize fixing between snap ring and the positioning seat, installation work is convenient simple, and the work efficiency is improved.

Preferably, the bottom edge of the inner cavity of the mounting plate is obliquely and downwards arranged from one side of the stirring shaft to one side far away from the stirring shaft.

Through adopting above-mentioned technical scheme, the concrete that enters into in the mounting panel among the stirring process of being convenient for discharges the mounting panel.

Preferably, the adjusting plate is provided with a plurality of through grooves along the direction that the adjusting plate slided far away from one side end of mounting panel, and a plurality of through grooves set gradually along vertical downwards.

Through adopting above-mentioned technical scheme, the setting that leads to the groove has reduced the resistance of regulating plate in the stirring concrete in-process, improves the stirring effect of concrete.

Preferably, the second bolt is sleeved with a gasket, the gasket is located between the nut and the elastic clamping ring, the nut is fixedly connected with the gasket, and a knob is fixedly arranged on the surface of one side, away from the elastic clamping ring, of the gasket.

Through adopting above-mentioned technical scheme, the area of contact between gasket increase nut and the snap ring makes the nut better to snap ring's tight effect of supporting, and rotates the knob can convenient and fast's realization to the regulation of nut position, has improved the convenience of operation.

Preferably, a magnet is arranged on the elastic clamping ring and is located in the gap.

Through adopting above-mentioned technical scheme, through the magnetic force effect of magnet to the second bolt for the second bolt is difficult for toppling over under the effect of gravity when pegging graft in the breach, further improves the convenience that resilient clip circle is fixed.

In conclusion, the invention has the following beneficial effects:

1. the device can stir concrete when the pouring pipe extends into the pile hole for pouring, and the motor drives the stirring shaft and the stirring blades to rotate, so that the fluidity of the concrete is improved, the concrete is stirred more fully and uniformly, and air bubbles in the poured concrete are effectively removed;

2. the arrangement of the limiting sleeve is characterized in that when the limiting sleeve is used, the limiting sleeve can be firstly placed into a pile hole, then the pouring pipe and the bubble eliminator are placed into the limiting sleeve from an upper opening of the limiting sleeve, the pouring pipe and the bubble eliminator descend from the limiting sleeve, when the pouring pipe and the bubble eliminator descend to a preset position, the limiting sleeve is lifted, or the pouring pipe and the bubble eliminator are firstly placed into the limiting sleeve from the upper opening of the limiting sleeve, then the limiting sleeve, the pouring pipe and the bubble eliminator descend together, and when the pouring pipe and the bubble eliminator descend to the preset position, the limiting sleeve is lifted, and the two methods can prevent the stirring column from being clamped into a gap of a steel reinforcement cage, so that the bubble eliminator is effectively protected;

3. when needs fit the notch department of dovetail with the snap ring lid, overturn the outside of second bolt toward the mounting panel, cause to block in order to reduce the second bolt to the installation of snap ring, fit the snap ring butt lid behind the notch department of dovetail, make breach and second bolt correspond, at this moment, up rotate the second bolt to with the breach cooperation of pegging graft, and with swivel nut, make the nut support tightly with the upper surface of snap ring, can realize fixing between snap ring and the positioning seat, installation work is convenient simple, and the work efficiency is improved.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view showing the fitting relationship of the mounting plate and the adjusting plate in the embodiment of the present invention;

FIG. 3 is a schematic diagram of a portion of an embodiment of the present invention;

FIG. 4 is a schematic view showing the fitting relationship between the stirring vanes and the stirring shaft in the embodiment of the present invention;

fig. 5 is an enlarged view of a portion a in fig. 3.

Reference numerals: 1. pouring a pipe; 2. a discharge hole; 3. a motor; 4. a stirring shaft; 5. a stirring blade; 51. mounting a plate; 52. an adjusting plate; 6. a helical blade; 7. a limiting sleeve; 8. a first bolt; 9. a strip hole; 10. a through groove; 11. scale lines; 12. installing a card seat; 13. an elastic snap ring; 14. a bayonet; 15. positioning blocks; 16. a second bolt; 17. a nut; 18. a notch; 19. a gasket; 20. a knob; 21. a dovetail groove; 22. a dovetail block.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The utility model provides a concrete bored concrete pile bubble annihilator, refers to figure 1, including can stretching into the downthehole pipe 1 of pouring of bored concrete pile, pour the lateral wall circumference of 1 lower extreme of pipe and be provided with the discharge opening 2 that link up 1 inner chamber of pouring pipe, pour 1 lower extreme of pipe and be provided with the bubble annihilator. Specifically, the bubble eliminator includes that the output shaft is motor 3 and one end fixed connection in the output epaxial (mixing) shaft 4 of vertical setting, and stirring vane 5 with adjustable length is installed to the lateral wall circumference of (mixing) shaft 4, and stirring vane 5 top-down has set gradually the multilayer, and the lower extreme of (mixing) shaft 4 lateral wall is provided with helical blade 6, and helical blade 6's upper end is close to in the lower extreme of lower floor stirring vane 5. Simultaneously, each layer of stirring vane 5 has a plurality ofly and around 4 circumference evenly distributed of (mixing) shaft, and two-layer stirring vane 5 is the setting of staggering from top to bottom, and in this embodiment, the quantity of each layer of stirring vane 5 can be preferred four, and four 5 circumference evenly distributed of stirring vane are on (mixing) shaft 4, and such setting makes stirring vane 5 more even fast to the stirring of concrete, and stirring effect is better.

Specifically, stirring vane 5 includes that the side is the platelike regulating plate 52 of circular arc transition and inside is the rectangular plate-like mounting panel 51 of cavity setting, and a side of mounting panel 51 is the opening setting, and relative another side is the closed setting, and mounting panel 51's blind end is connected in the lateral wall of (mixing) shaft 4, and regulating plate 52 activity cup joints and can stretch out mounting panel 51. In addition, the mounting plate 51 is provided with a positioning component for fixing the sliding position of the adjusting plate 52; still include stop collar 7, pour pipe 1 and bubble annihilator and all set up in stop collar 7, and stirring vane 5's outer end supports on stop collar 7's inner wall.

Referring to fig. 1 and 2, the bottom edge of the inner cavity of the mounting plate 51 is inclined downward from one side of the stirring shaft 4 to the side away from the stirring shaft 4, so that the concrete entering the mounting plate 51 during the stirring process can be discharged out of the mounting plate 51. Meanwhile, a plurality of through grooves 10 are formed in one side end, away from the mounting plate 51, of the adjusting plate 52 along the sliding direction of the adjusting plate 52, the through grooves 10 are arranged vertically downwards in sequence, in the embodiment, the number of the through grooves 10 on one adjusting plate 52 can be preferably five, and the arrangement of the through grooves 10 reduces the resistance of the adjusting plate 52 in the concrete stirring process, so that the concrete stirring effect is improved.

The device can stir concrete when the pouring pipe 1 extends into a pile hole for pouring, and the motor 3 drives the stirring shaft 4 and the stirring blades 5 to rotate, so that the fluidity of the concrete is improved, the concrete is stirred more fully and uniformly, and air bubbles in the poured concrete are effectively removed; and limit sleeve 7, during the use, can put into the stake hole earlier limit sleeve 7, then put into limit sleeve 7 from limit sleeve 7's upper portion opening with pouring pipe 1 and bubble eliminator again, pour pipe 1 and bubble eliminator and descend from limit sleeve 7, when falling to preset position, mention limit sleeve 7 again, or put into limit sleeve 7 from limit sleeve 7's upper portion opening with pouring pipe 1 and bubble eliminator earlier, then descend limit sleeve 7, pour pipe 1 and bubble eliminator together, when falling to preset position, mention limit sleeve 7 again, these two kinds of methods can both prevent that the stirring column from blocking in the steel reinforcement cage clearance, effectively protect the bubble eliminator.

Referring to fig. 2 and 3, specifically, the positioning component is a first bolt 8 screwed to one side of the adjusting plate 52 in the horizontal direction, the first bolt 8 penetrates through the mounting plate 51, the mounting plate 51 is provided with a strip hole 9 through which the first bolt 8 passes and is in sliding fit with the first bolt 8, the strip hole 9 is arranged in the direction from the open end to the closed end of the mounting plate 51, the head of the first bolt 8 abuts against the surface of the mounting plate 51 far away from the adjusting plate 52, and the outer wall of the mounting plate 51 is provided with scale marks 11 in the length direction of the strip hole 9. Rotatory first bolt 8 makes the head of first bolt 8 and mounting panel 51 keep away from the surface of regulating plate 52 and support tightly, and then can convenient and fast ground to regulating plate 52 location, and first bolt 8 of counter-rotation loosens regulating plate 52, can swiftly adjust regulating plate 52's position, and simple structure is practical, convenient and fast's realization stirring vane 5's length adjustment to be applicable to the stake hole of different diameters.

Referring to fig. 3 and 4, in the present embodiment, the stirring blade 5 and the stirring shaft 4 are detachably connected, specifically, an annular mounting clamping seat 12 is fixedly sleeved on the stirring shaft 4, a dovetail groove 21 is formed in a side wall of the mounting clamping seat 12 along an axial length direction of the stirring shaft 4, a dovetail block 22 in sliding fit with the dovetail groove 21 is fixedly mounted on a side wall of the mounting plate 51, and a top of the dovetail groove 21 is provided with an opening; meanwhile, the stirring shaft 4 is in clamping fit with an elastic clamping ring 13 for covering the opening of the dovetail groove 21, and a bayonet 14 buckled on the stirring shaft 4 is arranged on the elastic clamping ring 13; in addition, a locking assembly for locking and unlocking the elastic clamping ring 13 is arranged on the bayonet 14 elastic clamping ring 13 and the stirring shaft 4. Utilize dovetail 21 and forked tail piece 22's cooperation of sliding to realize the preliminary location cooperation between stirring vane 5 and the (mixing) shaft 4, realized dismantling the connection between the two simultaneously under the effect of closure subassembly, the stirring vane 5 among them of the later stage of being convenient for damages the back and the change that corresponds, need not to change whole device, has improved the life of device.

Referring to fig. 4 and 5, specifically, the locking assembly includes a positioning block 15 welded to two opposite side walls of the stirring shaft 4, a second bolt 16 disposed on the positioning block 15, a nut 17 threadedly sleeved on a tail portion of the second bolt 16, and a notch 18 disposed on a side of the elastic snap ring 13 and corresponding to the second bolt 16, wherein a head portion of the second bolt 16 is rotatably connected to the positioning seat, the second bolt 16 can rotate in a direction perpendicular to an upper surface of the positioning block 15 or pointing to an outer side of the positioning block 15, and when the second bolt 16 is inserted into and engaged with the notch 18, one side of the nut 17 near the head portion of the second bolt 16 is abutted against and engaged with the upper surface of the elastic snap ring 13. When need to cover circlip 13 in the notch department of dovetail 21, overturn second bolt 16 toward the outside of mounting panel 51, in order to reduce second bolt 16 and cause to block circlip 13's installation, behind circlip 13 butt lid in dovetail 21's notch department, make breach 18 correspond with second bolt 16, at this moment, second bolt 16 up rotate to with breach 18 grafting cooperation, and with swivel nut 17, make nut 17 support tightly with circlip 13's upper surface, can realize fixing between circlip 13 and the positioning seat, the installation work is convenient and simple, and the work efficiency is improved.

Referring to fig. 4 and 5, the second bolt 16 is sleeved with a gasket 19, the gasket 19 is located between the nut 17 and the elastic clamping ring 13, the nut 17 and the gasket 19 are integrally formed, and a knob 20 is fixedly connected to a surface of one side of the gasket 19, which is far away from the elastic clamping ring 13. The gasket 19 increases the contact area between the nut 17 and the elastic clamping ring 13, so that the abutting effect of the nut 17 on the elastic clamping ring 13 is better, the nut 17 can be conveniently and quickly adjusted by rotating the knob 20, and the convenience in operation is improved. In addition, a magnet (not shown) is fixedly mounted on the elastic snap ring 13, and the magnet is located in the notch 18. Through the magnetic force effect of magnet to second bolt 16 for second bolt 16 is difficult for toppling over under the effect of gravity when pegging graft in breach 18, further improves the convenience that resilient clip ring 13 was fixed.

The general working principle is as follows: the device stirs concrete when the pouring pipe 1 extends into a pile hole for pouring, and the motor 3 drives the stirring shaft 4 and the stirring blades 5 to rotate, so that the fluidity of the concrete is improved, the concrete is stirred more fully and uniformly, and bubbles in the poured concrete are effectively removed; and the setting of spacing sleeve 7, during the use, can put into the stake hole earlier with spacing sleeve 7, then will pour pipe 1 and bubble eliminator and put into spacing sleeve 7 from the upper portion opening of spacing sleeve 7 again, pour pipe 1 and bubble eliminator and descend from spacing sleeve 7, when falling to preset position, mention spacing sleeve 7 again.

The above-mentioned embodiments are merely illustrative and not restrictive, and those skilled in the art can make modifications to the embodiments without inventive contribution as required after reading the present specification, but only protected by the patent laws within the scope of the claims.