阅读说明：本技术 一种钻孔灌注桩桩头搅拌破碎装置 (Stirring and crushing device for pile head of cast-in-situ bored pile ) 是由 刘先观 鲁凯 崔言继 亓祥成 王晓宾 孔凯 杨守兴 张宝峰 邢朝伟 王闵闵 许利 于 2019-09-05 设计创作，主要内容包括：本发明公开了一种钻孔灌注桩桩头搅拌破碎装置,涉及建筑设备领域,技术方案为,包括三脚架,及水平设置在三角架上侧的横杆,三脚架顶部转动连接横杆的一端,横杆的另一端设置有竖直向下的支撑组件；横杆中部设置竖直向下的搅拌组件；搅拌组件包括套接在横杆杆体中部的搅拌组件套管,搅拌组件套管下侧设置竖直的搅拌主杆,搅拌主杆下端设置搅拌头；支撑组件包括设置在横杆端部下方的支撑主杆,支撑主杆底端设置万向轮。本发明的有益效果是：由于本方案是在钻孔灌注桩灌注完成后很短的时间内实施,不占用整体的工期,可节约出传统的在土方开挖到桩头漏出后在进行桩头破除的这部分工期。(The invention discloses a stirring and crushing device for a pile head of a cast-in-situ bored pile, which relates to the field of building equipment and adopts the technical scheme that the stirring and crushing device comprises a tripod and a cross rod horizontally arranged on the upper side of the tripod, wherein the top of the tripod is rotatably connected with one end of the cross rod, and the other end of the cross rod is provided with a vertically downward supporting component; the middle part of the cross rod is provided with a vertical downward stirring component; the stirring assembly comprises a stirring assembly sleeve sleeved in the middle of the cross rod body, a vertical stirring main rod is arranged on the lower side of the stirring assembly sleeve, and a stirring head is arranged at the lower end of the stirring main rod; the supporting component comprises a supporting main rod arranged below the end part of the cross rod, and universal wheels are arranged at the bottom end of the supporting main rod. The invention has the beneficial effects that: because the scheme is implemented in a short time after the cast-in-situ bored pile is poured, the whole construction period is not occupied, and the part of the construction period that the pile head is broken after the pile head is leaked in the traditional earthwork excavation can be saved.)

1. the stirring and crushing device for the pile head of the cast-in-situ bored pile is characterized by comprising a tripod (1) and a cross rod (5) horizontally arranged on the upper side of the tripod (1), wherein the top of the tripod (1) is rotatably connected with one end of the cross rod (5), and the other end of the cross rod (5) is provided with a vertically downward supporting component (3); the middle part of the cross rod (5) is provided with a vertical downward stirring component (2);

The stirring assembly (2) comprises a stirring assembly sleeve (21) sleeved in the middle of the rod body of the cross rod (5), a vertical stirring main rod (22) is arranged on the lower side of the stirring assembly sleeve (21), and a stirring head (23) is arranged at the lower end of the stirring main rod (22);

the supporting component (5) comprises a supporting main rod (31) arranged below the end part of the cross rod (5), and universal wheels (32) are arranged at the bottom end of the supporting main rod (31).

2. the stirring and crushing device for the pile head of the cast-in-situ bored pile according to claim 1, wherein a frame (24) is arranged below the stirring sleeve (21) of the stirring assembly (2), the frame (24) comprises a vertical rod fixedly connected with the lower surface of the stirring sleeve (21) and a supporting plate fixedly arranged at the bottom end of the vertical rod, a through hole is formed in the supporting plate, the top end of the stirring main rod (22) penetrates through the through hole, a limiting plate is arranged at the upper end of the stirring main rod (22), and a handle (25) is fixedly arranged on the upper side of the limiting plate.

3. The stirring and crushing device for the pile head of the cast-in-situ bored pile according to claim 2, wherein the stirring main rod (22) is a telescopic rod, and a locking bolt and size scales are arranged on a rod body of the telescopic rod.

4. the bored pile head stirring and crushing device according to claim 2, wherein a motor chamber (26) is provided at the bottom end of the main stirring rod (22), a motor is fixedly provided in the motor chamber (26), and a motor shaft of the motor is connected to the stirring head (23).

5. The stirring and crushing device for the pile head of the cast-in-situ bored pile according to claim 1, wherein the top end of the tripod (1) is sequentially and rotatably connected with a circular dial (11) and a cross rod sleeve (51) from bottom to top, scales are arranged on the upper surface of the dial (11), the cross rod sleeve (51) is sleeved on the outer side of the end part of the cross rod (5), and the cross rod sleeve (51) and the cross rod (5) are locked through a locking bolt.

6. The stirring and crushing device for the pile head of the cast-in-situ bored pile according to claim 1, wherein a leveling bubble (4) is provided on the upper side of the rod body of the cross rod (5).

7. the stirring and crushing device for the pile head of the bored pile according to claim 1, wherein a supporting sleeve (33) is provided at the top end of a supporting main rod (31) of the supporting assembly (3), and the supporting sleeve (33) is locked with the end of the cross rod (5) by a locking bolt;

The main support rod (31) is a telescopic rod.

8. The bored pile head stirring and crushing device according to claims 1 to 7, wherein the stirring head (23) comprises an upper part, a middle part and a lower part which are integrated, the upper part (231) and the lower part (233) are both conical bodies, and the middle part (232) is a cylindrical body;

The upper part (231) and the lower part (233) are both composed of a plurality of inclined rod circumferential arrays, the tip of the upper part (231) is positioned at the upper end, the tip of the lower part (233) is downward, a plurality of vertical rod bodies are fixedly arranged between the inclined rods of the upper part (231) and the inclined rods of the lower part (233), and the middle part (232) is composed of a plurality of vertical rod body circumferential arrays;

And the periphery of the joint of the upper part (231) and the middle part (232) and the periphery of the joint of the middle part (232) and the lower part (233) are respectively and fixedly provided with a ring body.

9. The method for constructing a pile portion of a cast-in-place pile of a demolition apparatus according to claim 1 to 8,

The method comprises the following steps that firstly, after the cast-in-place concrete of the cast-in-place bored pile is poured, the crushing device is arranged above the cast-in-place bored pile before and after the initial setting time of the concrete;

Secondly, adjusting the heights of the tripod 1 and the supporting component 3, and centering air bubbles in the level bubble 4 to keep the cross rod 5 horizontal;

thirdly, adjusting the stirring main rod 22 to be within the vertical projection range of the cast-in-situ bored pile by rotating the cross rod sleeve 51 and the adjusting support component sleeve 21;

fourthly, rotating the dial 11 to enable the 0 scale mark with the dial 11 to coincide with the central line of the cross rod 5, and calculating the rotation angle of the cross rod 5 in the vertical projection range of the swept cast-in-situ bored pile;

Fifthly, aligning the lowest end of the lower part 233 of the stirring head 23 with the designed elevation of the pile top by adjusting the stirring main rod 22, wherein the maximum length of the stirring main rod 22 after adjustment is obtained;

Sixthly, horizontally rotating the cross rod 5 to drive the lower stirring head 23 to move, and stirring the broken section required by the pile head; the main stirring rod 22 is pulled up and down by the handle 25 to completely stir and crush the concrete pouring part above the pile top elevation, so that the concrete is mixed with other non-concrete substances, the cohesive force among the concrete is damaged, and the strength of the part is reduced;

Seventhly, sliding the support assembly sleeve 21 along the cross rod 5, then rotating the cross rod sleeve 5, and stirring and crushing all concrete pouring parts above the pile top elevation within the vertical projection range of the whole pile head;

Eighthly, after the stirring is finished, washing the stirring main rod 22 and the stirring head 23 in time to prevent the concrete from solidifying;

And ninthly, when the earthwork is excavated, the strength of the crushed concrete pile head part is very low, and the crushed concrete pile head part is excavated along with the earthwork and is transported outwards.

Technical Field

The invention relates to the field of building equipment, in particular to a stirring and crushing device for a pile head of a cast-in-situ bored pile.

Background

With the large-scale engineering construction of cities in China, the cast-in-situ bored pile is widely applied to engineering construction. Currently, cast-in-situ bored piles are mostly of a cast-in-situ reinforced concrete structure. Due to the construction method, in order to ensure the quality of the pile head, a part of concrete is required to be poured more than the pile top elevation required by the design; meanwhile, due to poor process control, the pile top concrete is easily subjected to over-irrigation. After the foundation pit is excavated to the designed elevation, the super-grouted concrete pile head needs to be broken.

In sum, the pile head is broken after the foundation pit is excavated to the designed elevation, the pile head has high strength, and the problems of high difficulty in breaking the concrete pile head, high cost, long construction period, high hoisting risk of the broken pile head, difficult outward transportation and the like exist.

disclosure of Invention

Aiming at the technical problems, the invention provides a stirring and crushing device for a bored pile head, which aims to effectively solve the problems of high difficulty, high cost, long construction period, high risk of hoisting the broken pile head and difficult outward transportation of the concrete pile head, effectively save the construction period and the cost and reduce the risk.

the technical scheme is that the device comprises a tripod and a cross rod horizontally arranged on the upper side of the tripod, wherein the top of the tripod is rotatably connected with one end of the cross rod, and the other end of the cross rod is provided with a vertically downward supporting component; the middle part of the cross rod is provided with a vertically downward stirring component;

The stirring assembly comprises a stirring assembly sleeve sleeved in the middle of the cross rod body, a vertical stirring main rod is arranged on the lower side of the stirring assembly sleeve, and a stirring head is arranged at the lower end of the stirring main rod;

The supporting component comprises a supporting main rod arranged below the end part of the cross rod, and universal wheels are arranged at the bottom end of the supporting main rod.

the stirring assembly sleeve and the cross rod are locked through a locking bolt.

Preferably, the agitator casing below of stirring subassembly is provided with the frame, the frame include with agitator casing fixed surface's pole setting, and the fixed backup pad that sets up in the pole setting bottom, the through-hole has been seted up in the backup pad, this through-hole is run through on the top of stirring mobile jib, and is provided with the limiting plate on the stirring mobile jib, and the limiting plate prevents that the stirring mobile jib from falling out from the through-hole, the fixed handle that sets up of limiting plate upside. The frame is rectangular frame, and the operator can pull stirring mobile jib through the handle to the stirring of the position of pile head over the standard height in the vertical direction is broken to the realization.

Preferably, the stirring mobile jib is the telescopic link, is provided with locking bolt and size scale on its body of rod, can control the length of stirring mobile jib through the size scale.

preferably, the bottom of stirring mobile jib is provided with the motor cavity, and the motor cavity is fixed to be set up the motor, the motor shaft of motor with the stirring head is connected. The cable of motor can set up along stirring mobile jib, perhaps sets up stirring mobile jib to the cavity pole, and the cable of motor is worn out to the top from stirring mobile jib inside.

Preferably, the stirring head comprises an integrated upper part, a middle part and a lower part, wherein the upper part and the lower part are both conical bodies, and the middle part is a cylindrical body;

The upper part and the lower part are both formed by a plurality of inclined rod circumferential arrays, the tip of the upper part is positioned at the upper part, and the cone bottom is fixedly connected through a circular ring; the tip of the lower part is downward, and the other end of the lower part is fixedly connected with the other ring; a plurality of vertical rod bodies are fixedly arranged between the upper circular ring and the lower circular ring, the middle part of the circular ring is composed of a plurality of vertical rod body circumference arrays, and the outer diameter of the circumference composed of the vertical rod bodies is equal to that of the circular rings. The stirring head of this form has better wholeness, and through the reinforcement of ring, makes stirring head overall structure sturdy and durable more.

The top end of the upper part is connected with a motor shaft of the motor through a vertical connecting rod.

Preferably, the tripod top is by supreme down rotating in proper order and connecting circular shape calibrated scale and horizontal pole sleeve pipe, the calibrated scale upper surface is provided with the scale, the horizontal pole sleeve pipe cup joints in the horizontal pole tip outside, horizontal pole sleeve pipe passes through locking bolt with the horizontal pole and locks.

the downside of horizontal pole sleeve pipe is provided with the pointer along its axis, and the pointer is located the calibrated scale top.

Preferably, a level bubble is arranged on the upper side of the rod body of the cross rod.

preferably, a supporting sleeve is arranged at the top end of a supporting main rod of the supporting assembly, and the supporting sleeve is locked with the end part of the cross rod through a locking bolt;

the main support rod is a telescopic rod.

The stirring head comprises an upper part, a middle part and a lower part which are integrated, the upper part and the lower part are both conical bodies, and the middle part is a columnar body;

The upper part and the lower part are both composed of a plurality of inclined rod circumferential arrays, the tip of the upper part is positioned at the upper end, the tip of the lower part is downward, a plurality of vertical rod bodies are fixedly arranged between the upper part and the lower part of the inclined rods, and the middle part is composed of a plurality of vertical rod body circumferential arrays;

And the periphery of the joint of the upper part and the middle part and the periphery of the joint of the middle part and the lower part are respectively and fixedly provided with a ring body. The stirring head structure of this form has better crushing effect when the stirring head reciprocates, and is also better relatively to radial stirring of stirring head and crushing effect.

The technical scheme provided by the embodiment of the invention has the following beneficial effects:

(1) Because the scheme is implemented in a short time after the cast-in-situ bored pile is poured, the whole construction period is not occupied, and the part of the construction period of breaking the pile head after the pile head is leaked in the traditional earthwork excavation can be saved;

(2) The concrete is crushed before and after initial setting and is stirred with non-concrete substances, so that the firmness of the concrete at a stirring part can be greatly reduced, the part of the concrete can be directly excavated and transported outside with a soil body, the influence of a pile head on the soil body excavation can be effectively avoided, the efficiency of the soil body excavation and transportation outside is greatly improved, and meanwhile, the risks of pile head breakage, lifting and transportation outside are eliminated;

(3) the circular ring structure of the stirring head can effectively avoid the damage to the reinforcing steel bars of the cast-in-situ bored pile when the pile head is broken;

(4) The leveling bubble, the vertical supporting component, the stirring main rod with scales and the dial can accurately control the elevation and the range of the broken pile head;

(5) the device has low noise when in use, is convenient to operate, can greatly save manpower and material resources, reduces labor cost, and meets the requirements of green energy-saving construction.

drawings

Fig. 1 is a first overall structural diagram of an embodiment of the present invention.

fig. 2 is a partially enlarged view a of fig. 1.

FIG. 3 is a reference diagram of a usage status according to an embodiment of the present invention.

Wherein the reference numerals are: 1. a tripod; 11. a dial scale; 2. a stirring assembly; 21. a stirring assembly sleeve; 22. a stirring main rod; 23. a stirring head; 231. an upper portion; 232. a middle part; 233. a lower portion; 24. a frame; 25. a handle; 26. a motor chamber; 3. a support assembly; 31. supporting the main rod; 32. a universal wheel; 33. a support sleeve; 4. a level bubble; 5. a cross bar; 51. a cross bar sleeve.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. Of course, the specific embodiments described herein are merely illustrative of the invention and are not intended to be limiting.

It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.

in the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; 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 creation of the present invention can be understood by those of ordinary skill in the art through specific situations.