CN215053027U

CN215053027U - Back-grouting pipe check valve for cast-in-place pile

Info

Publication number: CN215053027U
Application number: CN202121158964.0U
Authority: CN
Inventors: 成芳; 姚渭强; 乔荣青
Original assignee: Yuxiang Construction Engineering Co ltd
Current assignee: Yuxiang Construction Engineering Co ltd
Priority date: 2021-05-27
Filing date: 2021-05-27
Publication date: 2021-12-07
Anticipated expiration: 2031-05-27

Abstract

The utility model discloses a slip casting pipe check valve after bored concrete pile, including last pile body, lower pile body and locking structure, it all is equipped with the turn-ups with pile body one end down to go up the pile body, and go up the pile body and carry out the block installation through locking structure with lower pile body, locking structure includes a pair of semicircle clamp, a pair of semicircle clamp passes through the mutual block installation of pivot, a pair of fixed block is installed to semicircle clamp one end, a pair of fixed block runs through and installs adjusting bolt, a pair of semicircle clamp inner wall is equipped with the limit groove, and limit inslot block installs the check valve device, the check valve device includes bottom plate and roof, bottom plate and roof carry out fixed mounting through the support column, bottom plate top center department installs the base, install the cover on the base and be equipped with spacing spring, protruding type fixed block is installed at spacing spring top, and protruding type fixed block and roof bottom are laminated each other, this kind of slip casting pipe check valve after bored concrete pile simple structure, The design is novel and has higher practical value.

Description

Back-grouting pipe check valve for cast-in-place pile

Technical Field

The utility model relates to a bored concrete pile back slip casting pipe check valve technical field specifically is a bored concrete pile back slip casting pipe check valve.

Background

The silent check valve is a valve that automatically opens and closes a valve flap depending on the flow of a medium to prevent the medium from flowing backward, and is also called a check valve, a reverse flow valve, and a back pressure valve. The check valve is an automatic valve and mainly used for preventing medium from flowing backwards, preventing the pump and a driving motor from reversing and discharging container medium. Check valves may also be used to provide make-up lines to auxiliary systems where the pressure may rise above the system pressure. Check valves can be divided into swing check valves (rotating about the center of gravity) and lift check valves (moving along an axis)

At present, in the grouting engineering after the cast-in-situ bored pile, due to the unreasonable structure of a guniting valve, cement grout flows back when the grouting valve is used, so that a large amount of waste is caused, the result of insufficient cement grout firstly fails to achieve the purpose of expected grouting, and even the ultimate bearing capacity of a single cast-in-situ bored pile fails to meet the design requirement, so that a large quality accident is formed. Therefore, the check valve of the grouting pipe for post grouting of the cast-in-place pile is improved.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a slip casting pipe check valve after bored concrete pile, including last pile body, lower pile body and locking structure, it all is equipped with the turn-ups with pile body one end down to go up the pile body, just go up the pile body and carry out the block installation through locking structure with lower pile body, locking structure includes a pair of semicircle clamp, and is a pair of the semicircle clamp passes through the mutual block installation of pivot, a pair of fixed block is installed to semicircle clamp one end, and is a pair of the fixed block runs through and installs adjusting bolt, and is a pair of semicircle clamp inner wall is equipped with the limit groove, just the check valve device is installed in the limit inslot block.

As a preferred technical scheme of the utility model, the check valve device includes bottom plate and roof, bottom plate and roof carry out fixed mounting through the support column, bottom plate top center department installs the base, it is equipped with spacing spring to install the cover on the base, protruding type fixed block is installed at spacing spring top, just protruding type fixed block and roof bottom are laminated each other.

As a preferred technical scheme of the utility model, install the stopper on the pile body inner wall under the bottom plate below is located, the stopper passes through bolt and bottom plate fixed connection.

As an optimal technical scheme of the utility model, a plurality of whitewashing holes have been seted up on lower pile body surface, just the diameter in whitewashing hole is 8 ~ 20 millimeters.

As a preferred technical scheme of the utility model, protruding type fixed block installs the sealing washer with the roof junction, the sealing washer is installed with the limit groove junction to the roof, just the sealing washer is the rubber material.

As a preferred technical scheme of the utility model, protruding type fixed block, roof, last pile body and lower pile body are in on the same coaxial vertical line.

As a preferred technical scheme of the utility model, the through-hole has been seted up on a pair of fixed block surface, be equipped with the left-hand thread in the through-hole, the adjusting bolt surface is equipped with the positive thread, just the left-hand thread that is equipped with in the through-hole interlocks with the positive thread that the adjusting bolt surface was equipped with each other.

The utility model has the advantages that:

this kind of bored concrete pile back mud jacking slip casting pipe check valve, install the check valve device through the block in the limit slot, the check valve device includes bottom plate and roof, bottom plate and roof carry out fixed mounting through the support column, bottom plate top center department installs the base, it is equipped with spacing spring to install the cover on the base, protruding type fixed block is installed at spacing spring top, protruding type fixed block and roof bottom are laminated each other, thereby realize stopping the slip casting promptly after the conveying capacity of slip casting thick liquid in to the pile body reaches the designing requirement behind the bored concrete pile, the body internal pressure suddenly reduces spacing spring and kick-backs, can form contrary, prevent that the gathering from going back at near the cement thick liquid of the pile body, improve the practicality of this kind of check valve.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is an exploded view of a check valve of a post-grouting pipe of a cast-in-place pile according to the present invention;

FIG. 2 is a plan view of a check valve device of a back grouting pipe check valve of a bored concrete pile according to the present invention;

fig. 3 is a perspective view of the check valve of the grouting pipe of the present invention.

In the figure: 1. pile body mounting; 2. a pile body is arranged; 3. a locking structure; 4. a guniting hole; 5. a check valve device; 6. a limiting block; 7. a base plate; 8. a support pillar; 9. a base; 10. a limiting spring; 11. a convex fixed block; 12. a top plate; 101. flanging; 301. a semicircular hoop; 302. a shaft pin; 303. a side groove; 304. a fixed block; 305. and adjusting the bolt.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b): as shown in fig. 1-3, the utility model relates to a slip casting pipe check valve after bored concrete pile, including last pile body 1, pile body 2 and locking structure 3 down, it all is equipped with turn-ups 101 with 2 one ends of pile body down to go up pile body 1, and go up pile body 1 and carry out the block installation through locking structure 3 with pile body 2 down, locking structure 3 includes a pair of semicircle clamp 301, a pair of semicircle clamp 301 passes through the mutual block installation of pivot 302, a pair of fixed block 304 is installed to semicircle clamp 301 one end, a pair of fixed block 304 runs through and installs adjusting bolt 305, a pair of semicircle clamp 301 inner wall is equipped with limit groove 303, and check valve device 5 is installed in the block of limit groove 303.

Wherein, check valve device 5 includes bottom plate 7 and roof 12, and bottom plate 7 and roof 12 carry out fixed mounting through

support column

8, and 7 top centers of bottom plate department installs base 9, installs the cover on the base 9 and is equipped with spacing spring 10, and protruding type fixed block 11 is installed at spacing spring 10 top, and just protruding type fixed block 11 and roof 12 bottom are laminated each other.

Wherein, the bottom plate 7 below is located and installs stopper 6 on 2 inner walls of pile body down, and stopper 6 passes through bolt and 7 fixed connection of bottom plate.

Wherein, a plurality of whitewashing holes 4 have been seted up on lower pile body 2 surface, and the diameter of whitewashing hole 4 is 8 ~ 20 millimeters, and the design of whitewashing hole 4 can be with the unable backward flow of cement thick liquid of the near gathering of valve body.

Wherein, the sealing washer is installed to protruding type fixed block 11 and roof 12 junction, and the sealing washer is installed to roof 12 and limit groove 303 junction, and the sealing washer is the rubber material, and the design of sealing washer prevents that mud from carrying out backward flow, improves the practicality of device.

Wherein, the convex fixing block 11, the top plate 12, the upper pile body 1 and the lower pile body 2 are positioned on the same coaxial vertical line.

Wherein, the through-hole has been seted up on a pair of fixed block 304 surface, is equipped with the left-hand thread in the through-hole, and adjusting bolt 305 surface is equipped with positive screw thread, and the left-hand thread that is equipped with in the through-hole interlocks with the positive screw thread that adjusting bolt 305 surface was equipped with each other, can be installed the inseparable block of semicircle clamp 301 through adjusting bolt 305, and the later stage of being convenient for is maintained.

The working principle is as follows: the back grouting pipe check valve of the bored concrete pile is characterized in that the integrity of each part is checked before the back grouting pipe check valve is used, a lower pile body 2 is buried in a foundation pit deeply after the integrity is confirmed, a check valve device 5 is sleeved in the lower pile body 2 and fixed through a limiting block on the inner wall of the lower pile body 2, an upper pile body 1 is aligned with the lower pile body 2 again for installation, a locking structure 3 is clamped at the joint of the upper pile body 1 and the lower pile body 2 to be locked at the joint through an adjusting bolt 305, the check valve device 5 is clamped and installed in a side groove 303, the check valve device 5 comprises a bottom plate 7 and a top plate 12, the bottom plate 7 and the top plate 12 are fixedly installed through a supporting column 8, a base 9 is installed at the center of the top of the bottom plate 7, a limiting spring 10 is installed on the base 9 in a sleeved mode, a convex fixing block 11 is installed at the top of the limiting spring 10, and the bottom ends of the fixing block 11 and the top plate 12 are mutually attached, thereby realize stopping the slip casting promptly after the slip casting thick liquid reaches the design requirement behind the bored concrete pile to the internal delivery capacity of stake, the body internal pressure suddenly reduces spacing spring 10 and kick-backs, can form contrary, prevents that the gathering from going back near the cement thick liquid of stake, improves the practicality of this kind of check valve, and this kind of bored concrete pile back grouting pipe check valve simple structure is reasonable, novel in design has higher practical value and is worth extensively promoting.

Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a slip casting pipe check valve behind bored concrete pile, includes pile body (1), lower pile body (2) and locking structure (3), a serial communication port, go up pile body (1) and pile body (2) one end down and all be equipped with turn-ups (101), just go up pile body (1) and carry out the block installation through locking structure (3) with lower pile body (2), locking structure (3) are including a pair of semicircle clamp (301), and are a pair of semicircle clamp (301) are installed through pivot (302) mutual block, a pair of fixed block (304) is installed, and is a pair of to clamp semicircle clamp (301) one end fixed block (304) are run through and are installed adjusting bolt (305), and are a pair of semicircle clamp (301) inner wall is equipped with limit groove (303), just check valve device (5) are installed in limit groove (303) the block.

2. The inverted valve of the grouting pipe after the cast-in-place pile as claimed in claim 1, wherein the inverted valve device (5) comprises a bottom plate (7) and a top plate (12), the bottom plate (7) and the top plate (12) are fixedly installed through a support column (8), a base (9) is installed at the center of the top of the bottom plate (7), a limiting spring (10) is installed on the base (9) in a sleeved mode, a convex fixing block (11) is installed at the top of the limiting spring (10), and the bottom ends of the convex fixing block (11) and the bottom end of the top plate (12) are mutually attached.

3. The inverted valve of grouting pipe after filling pile according to claim 1, characterized in that the lower part of the bottom plate (7) is provided with a limit block (6) on the inner wall of the lower pile body (2), and the limit block (6) is fixedly connected with the bottom plate (7) through bolts.

4. The back grouting pipe check valve of a cast-in-place pile according to claim 1, characterized in that a plurality of grout spraying holes (4) are formed in the surface of the lower pile body (2), and the diameter of each grout spraying hole (4) is 8-20 mm.

5. The check valve of the grouting pipe after the cast-in-place pile is characterized in that a sealing ring is installed at the joint of the convex fixing block (11) and the top plate (12), a sealing ring is installed at the joint of the top plate (12) and the side groove (303), and the sealing ring is made of rubber.

6. The inverted valve of grouting pipe after grouting pile according to claim 1, characterized in that the convex fixing block (11), the top plate (12), the upper pile body (1) and the lower pile body (2) are on the same coaxial vertical line.

7. The inverted valve of grouting pipe after filling pile according to claim 1, characterized in that the surface of the pair of fixed blocks (304) is provided with a through hole, the through hole is provided with a reverse thread, the surface of the adjusting bolt (305) is provided with a positive thread, and the reverse thread provided in the through hole is engaged with the positive thread provided on the surface of the adjusting bolt (305).