CN219327085U

CN219327085U - Grouting head for pile foundation

Info

Publication number: CN219327085U
Application number: CN202320297428.1U
Authority: CN
Inventors: 吴刚; 王盛; 赵茂浪
Original assignee: Jiangsu Xinghua Infrastructure Engineering Co ltd
Current assignee: Jiangsu Xinghua Infrastructure Engineering Co ltd
Priority date: 2023-02-23
Filing date: 2023-02-23
Publication date: 2023-07-11
Anticipated expiration: 2033-02-23

Abstract

The utility model relates to the technical field of building construction, in particular to a grouting head for pile foundations, which comprises an outer grouting pipe with a closed lower end, wherein the lower end of the outer grouting pipe is provided with a grouting head, an inner grouting pipe is arranged in the outer grouting pipe in a sliding manner, a through hole is formed in the middle of the lower end of the outer grouting pipe, a sliding rod is arranged in the through hole in a sliding manner, the upper end of the sliding rod extends into the inner grouting pipe, two sides of the upper end of the sliding rod are fixedly connected with the inner pipe wall of the inner grouting pipe through connecting rods, the upper end of the grouting head is provided with a slot matched with the lower end of the sliding rod, two sides of the lower end of the sliding rod are provided with blind holes, and a clamping mechanism capable of rapidly fixing the grouting head is fixedly arranged in the blind holes. The utility model is convenient for installing the grouting head, saves time and labor, reduces the labor intensity of workers, ensures uniform grouting and improves the quality of pile foundation grouting.

Description

Grouting head for pile foundation

Technical Field

The utility model relates to the technical field of building construction, in particular to a grouting head for a pile foundation.

Background

The pile foundation is a deep foundation formed by piles and pile caps connected with the tops of the piles or a single pile foundation formed by connecting the piles with the pile foundations. If the pile body is buried in the soil, the bottom surface of the bearing platform is contacted with the soil, the pile body is called a low bearing platform pile foundation; if the pile body upper portion is exposed to the ground and the pile cap bottom is located above the ground, the pile body is referred to as a high pile cap. Building piles are typically low pile foundations. In high-rise buildings, pile foundations are widely used.

Most threaded connection between slip casting head among the prior art and the slip casting pipe, when using the slip casting head, often need with a plurality of slip casting heads and a plurality of slip casting pipe one-to-one threaded connection, waste time and energy, staff's intensity of labour is higher, and a plurality of slip casting holes are not simultaneously the slip casting when the slip casting, lead to the slip casting to be uneven inadequately easily, reduced pile foundation grouting's quality, so we have provided a pile foundation with slip casting head.

Disclosure of Invention

The utility model aims to provide a grouting head for pile foundations, which is convenient for installing the grouting head and relatively uniform in grouting so as to solve the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a grouting head for pile foundation, includes the outer slip casting pipe that the lower extreme seals the setting, the lower extreme of outer slip casting pipe is provided with the slip casting head, the inside slip of outer slip casting pipe is equipped with interior slip casting pipe, the through-hole has been seted up at the lower extreme middle part of outer slip casting pipe, the slip is equipped with the slide bar in the through-hole, the upper end of slide bar extends to in the slip casting pipe, the upper end both sides of slide bar all pass through connecting rod and interior slip casting pipe's inner tube wall fixed connection, the slot with slide bar lower extreme matched with is seted up to the upper end of slip casting head, the blind hole internal fixation is equipped with the joint mechanism that can fix the slip casting head fast, a plurality of second outer slip casting holes have evenly been seted up to the lower extreme of outer slip casting pipe, the lateral wall of interior slip casting pipe is located the upside department of a plurality of second outer slip casting holes and has all been seted up.

Preferably, the clamping mechanism comprises a clamping block, the clamping block is arranged in the blind hole in a sliding manner, one end of the clamping block extends to the outside of the blind hole, a clamping groove matched with the clamping block is formed in the groove wall of the slot, the clamping block is located at one end of the blind hole and the bottom of the slot and is fixedly connected with the bottom of the slot through a pull rope, and a spring is sleeved outside the pull rope in a movable mode.

Preferably, the outer pipe wall of outer slip casting pipe is located second outer slip casting hole department and is provided with the dust guard, the lower extreme and the outer pipe wall fixed connection of outer slip casting pipe of dust guard.

Preferably, the dust-proof sheet is a soft plastic sheet.

Preferably, the bottom of the slot is fixedly connected with a propping pad, and the lower end of the sliding rod is propped against the upper end of the propping pad.

Preferably, an inclined plane is formed at one end of the clamping block, which is positioned outside the blind hole, and the angle of the inclined plane is set to be 45 degrees.

Compared with the prior art, the utility model has the beneficial effects that:

this grouting head for pile foundation inserts outer slip casting intraductal with interior slip casting pipe through fixture block, stay cord and the spring that are equipped with for the one end of slide bar passes the through-hole and the card goes into inside the slot, when two fixture blocks and the draw-in groove joint that corresponds, the inside of draw-in groove is gone into to the spring promotion fixture block card, and the slide bar supports tightly with supporting tight pad this moment, and the installation is accomplished, is convenient for install grouting head, labour saving and time saving has reduced staff's intensity of labour. During grouting, through slide bar, connecting rod, outer slip casting pipe and interior slip casting pipe that are equipped with, in the slip casting pipe was gone into to the thick liquid, because second outer slip casting hole misplaced each other with interior slip casting hole, the thick liquid is always poured into the outside of interior slip casting pipe to promote the slip casting head through first outer slip casting hole, the slip casting head passes through slide bar and connecting rod and drives interior slip casting pipe and move down, when second outer slip casting hole corresponds with interior slip casting hole position, and the thick liquid flows out simultaneously through all second outer slip casting holes, and the slip casting is comparatively even, has improved pile foundation slip casting quality.

Drawings

Fig. 1 is a schematic structural view of a grouting head for pile foundation.

Fig. 2 is a schematic side view of a pile foundation grouting head.

Fig. 3 is an enlarged schematic view of a portion a of fig. 2.

Fig. 4 is an enlarged schematic view of a portion B of fig. 2.

In the figure: 1. a grouting head; 2. an outer grouting pipe; 3. an inner grouting pipe; 4. a dust-proof sheet; 5. a first outer grouting hole; 6. a connecting rod; 7. an inner grouting hole; 8. a second outer grouting hole; 9. a slide bar; 10. a clamping block; 11. a tightening pad; 12. a pull rope; 13. and (3) a spring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 4, the present utility model provides a technical solution:

the utility model provides a grouting head for pile foundation, including the outer slip casting pipe 2 that the lower extreme seals the setting, the lower extreme of outer slip casting pipe 2 is provided with grouting head 1, the inside slip of outer slip casting pipe 2 is equipped with interior slip casting pipe 3, the through-hole has been seted up at the lower extreme middle part of outer slip casting pipe 2, slip is equipped with slide bar 9 in the through-hole, slide bar 9's upper end extends to in the slip casting pipe 3, slide bar 9's upper end both sides all pass through connecting rod 6 and interior slip casting pipe 3's inner tube wall fixed connection, grouting head 1's upper end has been seted up with slide bar 9 lower extreme matched with slot, the tank bottom fixedly connected with of slot supports tight pad 11, slide bar 9's lower extreme offsets with the upper end that supports tight pad 11, support tight pad 11 can make slide bar 9 and grouting head 1 fastening connection after the installation.

Blind holes are formed in two sides of the lower end of the sliding rod 9, clamping mechanisms capable of rapidly fixing the grouting head 1 are fixedly arranged in the blind holes, the clamping mechanisms comprise clamping blocks 10, the clamping blocks 10 are arranged in the blind holes in a sliding mode, one ends of the clamping blocks 10 extend to the outer portions of the blind holes, clamping grooves matched with the clamping blocks 10 are formed in the groove walls of the slots, the clamping blocks 10 are located at one ends of the blind holes and the bottoms of the slots, springs 13 are fixedly connected through pull ropes 12, springs 13 are sleeved outside the pull ropes 12 in a movable mode, the springs 13 are always in a compressed state, the pull ropes 12 can limit the clamping blocks 10 and prevent the clamping blocks from being separated from the blind holes, inclined faces are formed in one ends of the clamping blocks 10 located outside the blind holes, the inclined faces are arranged to be 45 degrees, and the inclined faces are convenient for the clamping blocks 10 to be clamped into the clamping grooves.

A plurality of first outer grouting holes 5 have evenly been seted up to outer grouting pipe 2's lower extreme, a plurality of second outer grouting holes 8 have evenly been seted up to outer grouting pipe 2's lateral wall, interior grouting pipe 3's lateral wall is located the upside department of a plurality of second outer grouting holes 8 and has all been seted up interior grouting hole 7, outer grouting pipe 2's outer tube wall is located second outer grouting hole 8 departments and is provided with dust guard 4, dust guard 4's lower extreme and outer grouting pipe 2's outer tube wall fixed connection, dust guard 4 reducible slip casting head 1 dust blocks up the probability of second outer grouting hole 8 when drilling, because dust guard 4 is soft plastic sheet, so can not influence the thick liquid and flow second outer grouting hole 8 when the slip casting.

When the grouting head 1 is installed, the inner grouting pipe 3 is inserted into the outer grouting pipe 2, one end of the sliding rod 9 penetrates through the through hole and is clamped into the slot, when two clamping blocks 10 are clamped with corresponding clamping grooves, the springs 13 push the clamping blocks 10 to be clamped into the clamping grooves, at the moment, the sliding rod 9 is abutted against the abutting pads 11, and installation is completed. When grouting, the slurry is injected into the inner grouting pipe 3, as the second outer grouting holes 8 and the inner grouting holes 7 are staggered, the slurry is always injected to the outside of the inner grouting pipe 3, the grouting head 1 is pushed by the first outer grouting holes 5, the grouting head 1 drives the inner grouting pipe 3 to move downwards through the sliding rod 9 and the connecting rod 6, when the positions of the second outer grouting holes 8 and the inner grouting holes 7 correspond, the slurry flows out through all the second outer grouting holes 8 at the same time, the grouting is uniform, and the quality of pile foundation grouting is improved.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a grouting head for pile foundation, includes outer slip casting pipe (2) that the lower extreme seals the setting, the lower extreme of outer slip casting pipe (2) is provided with grouting head (1), its characterized in that: the inside slip of outer slip casting pipe (2) is equipped with interior slip casting pipe (3), the through-hole has been seted up at the lower extreme middle part of outer slip casting pipe (2), the through-hole is interior to slide and is equipped with slide bar (9), in the upper end of slide bar (9) extends to interior slip casting pipe (3), the inner tube wall fixed connection of connecting rod (6) and interior slip casting pipe (3) is all passed through to the upper end both sides of slide bar (9), the slot with slide bar (9) lower extreme matched with is seted up to the upper end of slip casting head (1), blind hole both sides have all been seted up to the lower extreme both sides of slide bar (9), blind hole internal fixation is equipped with the joint mechanism that can fix slip casting head (1) fast, a plurality of first outer slip casting holes (5) have evenly been seted up to the lower extreme of outer slip casting pipe (2), a plurality of second outer slip casting holes (8) have evenly been seted up to the lateral wall of outer slip casting pipe (2), the lateral wall of interior slip casting pipe (3) is located the interior slip casting hole (7) of a plurality of second outer slip casting holes (8).

2. The grouting head for pile foundation according to claim 1, wherein: the clamping mechanism comprises a clamping block (10), the clamping block (10) is arranged in the blind hole in a sliding mode, one end of the clamping block (10) extends to the outside of the blind hole, a clamping groove matched with the clamping block (10) is formed in the groove wall of the slot, one end of the clamping block (10) located in the blind hole is fixedly connected with the bottom of the slot through a pull rope (12), and a spring (13) is sleeved outside the pull rope (12) in a movable mode.

3. The grouting head for pile foundation according to claim 1, wherein: the outer pipe wall of outer slip casting pipe (2) is located second outer slip casting hole (8) department and is provided with dust guard (4), the lower extreme and the outer pipe wall fixed connection of outer slip casting pipe (2) of dust guard (4).

4. A grouting head for pile foundation according to claim 3, characterised in that: the dustproof sheet (4) is a soft plastic sheet.

5. The grouting head for pile foundation according to claim 1, wherein: the bottom of the slot is fixedly connected with a propping pad (11), and the lower end of the sliding rod (9) is propped against the upper end of the propping pad (11).

6. A grouting head for pile foundation according to claim 2, characterised in that: an inclined plane is formed at one end of the clamping block (10) located outside the blind hole, and the angle of the inclined plane is set to be 45 degrees.