CN214883603U

CN214883603U - Air pressure pushing and vibrating device

Info

Publication number: CN214883603U
Application number: CN202121317127.8U
Authority: CN
Inventors: 陈清贵
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2021-11-26
Anticipated expiration: 2031-06-11

Abstract

The utility model discloses an air pressure pushing and vibrating device, which comprises an air pressure sealing device, a vibrating device, an outer tube, an inner tube and a steel chisel strip; the air pressure sealing device comprises a valve body, a cover plate and a supercharging mechanism, wherein a valve cavity is formed in the valve body, an air inlet channel is formed in the valve cavity, the supercharging mechanism is communicated with the air inlet channel, an outer pipe connector is formed below the valve cavity, an outer pipe is connected below the outer pipe connector in a sealing mode, a feed inlet is formed above the valve cavity, the cover plate is arranged at the feed inlet, and the cover plate seals or opens the feed inlet; the vibrating device is arranged in the valve cavity, the inner pipe is inserted into the outer pipe, a gap is formed between the inner pipe and the outer pipe, a plurality of steel drill rods are annularly arranged on the lower side of the inner pipe along the pipe wall and extend downwards, the vibrating device is fixed above the inner pipe, and the inner pipe and the outer pipe are elastically connected with the upper end of the outer pipe. The utility model discloses the concrete is more sufficient, closely knit when the immersed tube is filled, and steel pipe string area steel reinforcement cage when preventing the tube drawing to and concrete blocking steel pipe prevents to produce the necking down simultaneously.

Description

Air pressure pushing and vibrating device

Technical Field

The utility model relates to a immersed tube bored concrete pile technical field, in particular to atmospheric pressure pushes away and vibrating device.

Background

The pipe-sinking cast-in-place pile is a common pile foundation construction method at present, and is more corrosion-resistant in a corrosive soil layer compared with a precast pile; compared with the cast-in-situ bored pile, the problems of pile body sinking, insufficient holding power and the like caused by the floating soil at the pile tip of the cast-in-situ bored pile are avoided. During construction, a steel pipe corresponding to the design size of a pile foundation is adopted to downwards press a pile tip, the steel pipe and the pile tip are sunk into a soil layer, a steel reinforcement cage is placed in the steel pipe, then concrete is poured into the steel pipe, and the steel pipe is pulled out by vibration or hammering.

However, the following problems are easy to occur in the construction process of the existing immersed tube cast-in-place pile construction equipment:

when the pipe is pulled out, the reinforcement cage floats upwards to form a cage; concrete plugging the steel pipe; after the concrete is poured, the concrete is not full and compact; in the pipe drawing process, the concrete is extruded by the soil retractive force around the steel pipe, so that necking is caused.

SUMMERY OF THE UTILITY MODEL

The present invention has been made in view of the above problems. An object of the utility model is to provide an atmospheric pressure is pushed and is crowded and vibrating device overcomes above-mentioned defect, makes the concrete sufficient more excellent, better closely knit concrete, and the steel pipe hangs and takes the steel muscle cage when preventing the tube drawing to and concrete blocking steel pipe prevents to produce the necking down simultaneously.

To achieve the above object, the solution of the present invention is: an air pressure pushing and vibrating device comprises an air pressure sealing device, a vibrating device, an outer pipe, an inner pipe and a steel chisel bar;

the air pressure sealing device comprises a valve body, a cover plate and a supercharging mechanism, wherein a valve cavity is formed in the valve body, an air inlet channel is formed in the valve cavity and is communicated with the supercharging mechanism, an outer pipe connector is formed below the valve cavity, an outer pipe is connected below the outer pipe connector in a sealing manner, a feed inlet is formed above the valve cavity, the cover plate is arranged at the feed inlet, and the cover plate seals or opens the feed inlet;

the vibrating device is arranged in the valve cavity, the inner pipe is inserted into the outer pipe, a gap is formed between the inner pipe and the outer pipe, a plurality of steel drill rods are annularly arranged on the lower side of the inner pipe along the pipe wall, the steel drill rods extend downwards, the vibrating device is fixed above the inner pipe, and the inner pipe is elastically connected with the outer pipe at the upper end of the outer pipe.

Further, an outer pipe flange plate extends from the outer wall of the outer pipe, and the outer pipe joint is connected with the outer pipe in a sealing mode through the outer pipe flange plate.

Further, the valve pocket includes feeding chamber, vibrating device installation cavity, the feeding chamber below extends there is the hopper, the vibrating device installation cavity switches on in the hopper below, the feed inlet sets up feeding chamber top, the outer tube interface sets up vibrating device installation cavity below, the hopper inserts the inner tube, just leave the interval between hopper outer wall and the inner tube.

Further, a lower flange plate is fixed on the outer wall of the outer pipe, an upper flange plate is fixed on the outer wall of the inner pipe, the upper flange plate is arranged above the lower flange plate, the vibrating device is fixed above the upper flange plate, the lower flange plate and the vibrating device are arranged in the vibrating device installation cavity, a plurality of springs are vertically fixed between the upper flange plate and the lower flange plate, and the springs are annularly arranged along the upper flange plate and the lower flange plate.

Further, the cross section of the vibration device installation cavity is larger than that of the feeding cavity, and a workbench is formed above the vibration device installation cavity and around the feeding cavity.

Further, the air pressure sealing device further comprises a control mechanism, the cover plate is rotatably arranged in the valve cavity, the control mechanism is connected with the cover plate, and the control mechanism drives the cover plate to rotate in the valve cavity to open or close the feed port.

Further, the control mechanism is vertically fixed in the valve cavity and comprises a telescopic cylinder and a connecting rod, the middle of the connecting rod is hinged to one side below the feed port, one end of the connecting rod is connected with the cover plate, the other end of the connecting rod is hinged to the telescopic cylinder and pushed and pulled by the telescopic cylinder, the connecting rod drives the cover plate to rotate downwards and is folded on the side wall of the valve cavity to open the feed port when the telescopic cylinder pushes upwards, and the connecting rod drives the cover plate to rotate upwards and is attached to the lower end face of the feed port to seal the feed port when the telescopic cylinder pulls downwards.

Further, the valve body forms the cavity at the lateral wall of valve pocket, control mechanism sets up in the cavity, the valve body lateral wall is in cavity department opens there is the access hole, the sealed lock of detachably has the access cover on the access hole.

Further, the steel brazing bars are welded to the inner pipe.

Further, a sealing gasket is arranged between the cover plate and the feeding hole.

After the technical scheme is adopted, the beneficial effects of the utility model reside in that: a valve cavity is formed in the valve body, an air inlet channel is formed in the valve cavity and communicated with a supercharging mechanism, an outer pipe interface is formed below the valve cavity, an outer pipe is connected below the outer pipe interface in a sealing mode, a feed port is formed above the valve cavity, a cover plate is arranged at the feed port, and the cover plate seals or opens the feed port; the vibrating device is arranged in the valve cavity, the inner pipe is inserted into the outer pipe, a gap is formed between the inner pipe and the outer pipe, a plurality of steel drill rods are annularly arranged on the lower side of the inner pipe along the pipe wall, the steel drill rods extend downwards, the vibrating device is fixed above the inner pipe, and the inner pipe and the outer pipe are elastically connected at the upper end of the outer pipe; a steel reinforcement cage is placed along a feeding hole and poured with concrete after the pipe is immersed, and a plurality of steel drill rods which are annularly arranged on the inner wall of the inner pipe and the lower side of the inner pipe play a role in guiding the steel reinforcement cage, so that the steel reinforcement cage is prevented from being inclined and is brought up during pipe drawing; after concrete is poured, the cover plate seals the feed inlet, the pressurizing mechanism pressurizes the valve cavity along the air inlet channel, further pressure is applied to the upper surface of the concrete, the vibrating device drives the inner pipe and the steel bar to vibrate, and the steel bar vibrates the concrete, so that the filling degree of the concrete is improved, the concrete is more compact, and pipe blockage is prevented; in the pipe drawing process, due to the fact that the air pressure in the valve cavity is high, the pushing concrete rapidly falls and expands outwards, and the situation that the surrounding soil body retracts and is filled to cause necking is avoided.

Drawings

Fig. 1 is a schematic front view of the present invention;

fig. 2 is a schematic side view of the present invention;

fig. 3 is a schematic top view of the present invention;

fig. 4 is a schematic view of a partial structure of the joint between the outer tube and the inner tube of the present invention.

Description of reference numerals: 1-pneumatic sealing device, 2-vibrating device, 3-outer tube, 4-inner tube, 5-steel bar, 6-valve body, 7-cover plate, 8-pressurizing mechanism, 9-valve cavity, 10-inlet channel, 11-outer tube interface, 12-inlet port, 13-outer tube flange, 14-inlet cavity, 15-vibrating device installation cavity, 16-hopper, 17-lower flange, 18-upper flange, 19-spring, 20-workbench, 21-control mechanism, 22-telescopic cylinder, 23-connecting rod, 24-cavity, 25-access hole, 26-access cover, 27-sealing gasket and 28-gap.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

The utility model relates to an air pressure pushing and vibrating device, as shown in figure 1, figure 2, figure 3 and figure 4, comprising an air pressure sealing device 1, a vibrating device 2, an outer tube 3, an inner tube 4 and a steel chisel strip 5; the air pressure sealing device 1 comprises a valve body 6, a cover plate 7 and a supercharging mechanism 8, wherein a valve cavity 9 is formed in the valve body 6, an air inlet passage 10 is formed in the valve cavity 9, the air inlet passage 10 is communicated with the supercharging mechanism 8, the supercharging mechanism 8 is any existing device capable of providing high-pressure gas, an outer pipe interface 11 is formed below the valve cavity 9, an outer pipe 3 is hermetically connected below the outer pipe interface 11, during construction, a static pile press is utilized to downwards push and press the outer pipe 3 to a pile tip, and then the outer pipe 3 and the pile tip are pressed into a soil layer together, in the embodiment, an outer pipe flange 13 extends out of the outer wall of the outer pipe 3, the outer pipe interface 11 is hermetically connected with the outer pipe 3 through the outer pipe flange 13, in the embodiment, the outer pipe interface 11 and the pipe flange 13 are fixedly connected in a threaded mode, and also can be fixedly connected in other modes such as welding and the like, a feed inlet 12 is formed above the valve cavity 9, a cover plate 7 is arranged at the feed inlet 12, a sealing gasket 27 is arranged between the cover plate 7 and the feed inlet 12, the cover plate 7 seals or opens the feed inlet 12, the cover plate 7 can be poured with concrete along the feed inlet 12 when opened, a reinforcement cage is placed downwards, the sealing cover plate 7 is buckled, a closed space is formed in the valve cavity 9 at the moment, a pressurizing mechanism 8 is opened, and the air pressure in the valve cavity 9 rises, so that the aim of extruding the concrete downwards is fulfilled; the vibrating device 2 is arranged in the valve cavity 9, the inner pipe 4 is inserted into the outer pipe 3, a gap 28 is arranged between the inner pipe 4 and the outer pipe 3, the inner pipe 4 and the outer pipe 3 can be simultaneously inserted into a soil layer, or the inner pipe 4 is inserted into the outer pipe 3 after the outer pipe 3 is inserted into the soil layer, a plurality of steel chisel bars 5 are annularly arranged at the lower side of the inner pipe 4, when a steel reinforcement cage is placed along the inner pipe 4, the inner wall of the inner pipe 4 and the steel chisel bars 5 play a role in guiding the steel reinforcement cage, the toppling and deflection of the steel reinforcement cage are inhibited, the steel reinforcement cage is prevented from being hung on the device, after the vibrating device 2 is opened, the steel chisel bars 5 vibrate concrete, the flowing of the concrete in the outer pipe 3 is accelerated, the concrete filling degree is better and more compact, compared with the prolonging of the inner pipe 4, the weight of the device can be lightened by arranging the steel chisel bars 5 below the inner pipe 4, the load during vibration is reduced, and the expansion of the concrete to the outer pipe 3 can not be obstructed by the steel chisel bars 5, preferably, the number of the steel chisel strips 5 is 4 to 8, in order to ensure that the connection between the steel chisel strips 5 and the inner tube 4 is more firm and prevent the fracture of the connection between the steel chisel strips 5 and the inner tube 4, in this embodiment, the steel chisel strips 5 are welded on the inner tube 4, the steel chisel strips 5 extend downwards, the vibration device 2 is fixed with the inner tube 4, the inner tube 4 is elastically connected with the outer tube 3, the specific form of the elastic connection can be a material or a structure which can block vibration such as a spring, rubber and the like, so as to prevent the outer tube 3 and other components from vibrating together when the inner tube 4 vibrates, the vibration device is started, the vibration device drives the inner tube 4 and the steel chisel strips 5 to vibrate, and as the inner tube 4 and the steel chisel strips 5 are inserted into the concrete, the concrete is further driven to vibrate, thereby accelerating the flow of the concrete in the device under the action of pushing and vibrating by air pressure, and improving the filling degree and the compactness of the concrete, and further, the effect of preventing the concrete and the reinforcement cage from blocking the pipe is achieved.

In a further embodiment, the valve cavity 9 includes a feeding cavity 14 and a vibrating device installation cavity 15, a hopper 16 extends below the feeding cavity 14, the vibrating device installation cavity 15 is communicated below the hopper 16, the feeding port 12 is arranged above the feeding cavity 14, the outer pipe connector 11 is arranged below the vibrating device installation cavity 15, the hopper 16 is inserted into the inner pipe 4, when concrete is poured from the feeding port 12 above the feeding cavity 14, the concrete in the feeding cavity 14 directly enters the inner cavity of the inner pipe 4 along the hopper 16, and cannot flow into the vibrating device installation cavity 15, an interval is left between the outer wall of the hopper 16 and the inner pipe 4, and when the vibrating device 2 connected to the inner pipe 4 vibrates, the inner pipe 4 cannot bring the valve body 6 to vibrate together. In this embodiment, the inner tube 4 is connected to the outer tube 3 by a spring, the outer wall of the outer tube 3 is fixed with a lower flange 17, the outer wall of the inner tube 4 is fixed with an upper flange 18, the lower flange 17 is welded to the outer tube 3, the upper flange 18 is welded to the inner tube 4, the upper flange 18 is above the lower flange 17, the diameters of the upper flange 18 and the lower flange 17 are smaller than the diameter of the outer tube flange 13, the vibration device 2 is fixed above the upper flange 18, the vibration device 2 can be fixed on the upper flange 18 by screwing or welding, the upper flange 18, the lower flange 17 and the vibration device 2 are all in the vibration device mounting cavity 15, so that the vibration of the vibration device 2 and the inner tube 4 does not affect the air tightness of the whole device, and a plurality of springs 19 are vertically fixed between the upper flange 18 and the lower flange 17, a plurality of said springs 19 are arranged annularly along said upper flange 18 and lower flange 17, the springs 19 absorbing vibrations from the inner tube 4 and preventing the vibrations from being transmitted to the outer tube 3.

The air pressure sealing device 1 further comprises a control mechanism 21, the cover plate 7 is rotatably arranged in the valve cavity 9, the control mechanism 21 is connected with the cover plate 7, the control mechanism 21 drives the cover plate 7 to be rotatably opened or closed in the valve cavity 9, the feed inlet 12 is formed in the cover plate 7, the cover plate 7 is closed over the feed inlet 12, and when the air pressure in the valve cavity 9 rises, the air pressure rises to the top cover plate 7, and the cover plate 7 is closed over the feed inlet 12 in the valve cavity 9, so that the cover plate 7 cannot be opened over by the air pressure, and the sealing effect of the cover plate 7 and the feed inlet 12 is promoted. The control mechanism 21 is vertically fixed in the valve cavity 9 and comprises a telescopic cylinder 22 and a connecting rod 23, the telescopic cylinder 22 can adopt an air cylinder or a hydraulic cylinder, the middle part of the connecting rod 23 is hinged on one side below the feed port 12, one end of the connecting rod 23 is connected with the cover plate 7, the connecting rod 23 is connected with the cover plate 7 through a screw joint or a joint bearing, the cover plate 7 can deflect a certain angle in a self-adapting way when being connected through the joint bearing, so that the sealing effect between the cover plate and the feed port 12 is better, the other end of the connecting rod 23 is hinged with the telescopic cylinder 22 and pushed and pulled by the telescopic cylinder 22, when the telescopic cylinder 22 pushes upwards, the connecting rod 23 drives the cover plate 7 to rotate downwards and fold to the side wall of the valve cavity 9 to open the feed port 12, at the moment, the baffle of the cover plate 7 is outside the control mechanism 21, so as to prevent the concrete from splashing on the control mechanism 21 when the concrete is poured, the normal work of the control mechanism 21 is influenced, when the telescopic cylinder 22 is pulled downwards, the connecting rod 23 drives the cover plate 7 to rotate upwards and is attached to the lower end face of the feed port 12 so as to seal the feed port 12.

For making control mechanism 21 and apron 7 can not cause the interference to concrete and steel reinforcement cage entering from feed inlet 12, valve body 6 forms cavity 24 at the lateral wall of valve pocket 9, control mechanism 21 sets up in the

cavity

24, 6 lateral walls of valve body are in cavity 24 department opens there is access hole 25, detachably sealed lock has access cover 26 on the access hole 25, opens access cover 26 and can maintain the control mechanism 21 of valve pocket 9 inside.

The cross section of the vibrating device installation cavity 15 is larger than the cross section of the feeding cavity 14, a workbench 20 is formed on the periphery of the vibrating device installation cavity 15 and the feeding cavity 14, so that an operator can conveniently place a reinforcement cage and pour concrete on the workbench 20 in an auxiliary mode, and meanwhile, equipment maintenance personnel can conveniently overhaul equipment from the access cover 26.

Similarly, the device can be used for pushing and vibrating concrete in the construction process of rotary excavating cast-in-place piles, punched cast-in-place piles, manual hole cast-in-place piles and casing piles, so that the pile forming quality is improved.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the design of the present application, and all equivalent changes made according to the design key of the present application fall within the protection scope of the present application.

Claims

1. An air pressure pushing and vibrating device, characterized in that: comprises a pneumatic sealing device (1), a vibrating device (2), an outer tube (3), an inner tube (4) and a steel bar (5);

the air pressure sealing device (1) comprises a valve body (6), a cover plate (7) and a pressurization mechanism (8), a valve cavity (9) is formed in the valve body (6), an air inlet (10) is formed in the valve cavity (9), the air inlet (10) is communicated with the pressurization mechanism (8), an outer pipe interface (11) is formed below the valve cavity (9), an outer pipe (3) is connected below the outer pipe interface (11) in a sealing mode, a feeding hole (12) is formed above the valve cavity (9), the cover plate (7) is arranged at the feeding hole (12), and the feeding hole (12) is sealed or opened by the cover plate (7);

the vibrating device (2) is arranged in the valve cavity (9), the inner pipe (4) is inserted into the outer pipe (3), a gap (28) is formed between the inner pipe (4) and the outer pipe (3), a plurality of steel chisel strips (5) are annularly arranged on the lower side of the inner pipe (4) along the pipe wall, the steel chisel strips (5) extend downwards, the vibrating device (2) is fixed above the inner pipe (4), and the inner pipe (4) and the outer pipe (3) are elastically connected with each other at the upper end of the outer pipe (3).

2. A pneumatic pushing and vibrating device as claimed in claim 1, wherein: the outer pipe (3) outer wall extends has outer tube ring flange (13), outer tube interface (11) are through outer tube ring flange (13) and outer tube (3) sealing connection.

3. A pneumatic pushing and vibrating device as claimed in claim 1, wherein: the valve chamber (9) comprises a feeding chamber (14) and a vibrating device installation chamber (15), a hopper (16) extends below the feeding chamber (14), the vibrating device installation chamber (15) is communicated below the hopper (16), the feeding port (12) is arranged above the feeding chamber (14), the outer pipe connector (11) is arranged below the vibrating device installation chamber (15), the hopper (16) is inserted into the inner pipe (4), and a gap is reserved between the outer wall of the hopper (16) and the inner pipe (4).

4. A pneumatic pushing and vibrating device as claimed in claim 3, wherein: the outer tube (3) outer wall is fixed with lower flange dish (17), inner tube (4) outer wall is fixed with upper flange dish (18), upper flange dish (18) are in lower flange dish (17) top, vibrating device (2) are fixed upper flange dish (18) top, upper flange dish (18), lower flange dish (17), vibrating device (2) are all in vibrating device installation cavity (15), vertically between upper flange dish (18) and lower flange dish (17) be fixed with a plurality of springs (19), it is a plurality of spring (19) are followed upper flange dish (18) and lower flange dish (17) annular are arranged.

5. A pneumatic pushing and vibrating device as claimed in claim 3, wherein: the cross section of the vibrating device installation cavity (15) is larger than that of the feeding cavity (14), and a workbench (20) is formed above the vibrating device installation cavity (15) and around the feeding cavity (14).

6. A pneumatic pushing and vibrating device as claimed in claim 1, wherein: the air pressure sealing device (1) further comprises a control mechanism (21), the cover plate (7) is rotatably arranged in the valve cavity (9), the control mechanism (21) is connected with the cover plate (7), and the control mechanism (21) drives the cover plate (7) to rotate in the valve cavity (9) to open or close the feed port (12).

7. A pneumatic pushing and vibrating device as claimed in claim 6, wherein: the control mechanism (21) is vertically fixed in the valve cavity (9) and comprises a telescopic cylinder (22) and a connecting rod (23), the middle of the connecting rod (23) is hinged to one side of the lower portion of the feed port (12), one end of the connecting rod (23) is connected with the cover plate (7), the other end of the connecting rod (23) is hinged to the telescopic cylinder (22) and pushed and pulled by the telescopic cylinder (22), when the telescopic cylinder (22) is pushed upwards, the connecting rod (23) drives the cover plate (7) to rotate downwards and is folded on the side wall of the valve cavity (9) to open the feed port (12), and when the telescopic cylinder (22) is pulled downwards, the connecting rod (23) drives the cover plate (7) to rotate upwards and is attached to the lower end face of the feed port (12) to seal the feed port (12).

8. A pneumatic pushing and vibrating device as claimed in claim 6, wherein: the valve body (6) forms cavity (24) at the lateral wall of valve pocket (9), control mechanism (21) set up in cavity (24), valve body (6) lateral wall is in cavity (24) department is opened there is access hole (25), detachably sealed lock has access cover (26) on access hole (25).

9. A pneumatic pushing and vibrating device as claimed in claim 1, wherein: the steel brazing bars (5) are welded on the inner pipe (4).

10. A pneumatic pushing and vibrating device as claimed in claim 1, wherein: a sealing gasket (27) is arranged between the cover plate (7) and the feeding hole (12).