CN210288357U - Pile core centering device for cast-in-place pile - Google Patents
Pile core centering device for cast-in-place pile Download PDFInfo
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- CN210288357U CN210288357U CN201921079698.5U CN201921079698U CN210288357U CN 210288357 U CN210288357 U CN 210288357U CN 201921079698 U CN201921079698 U CN 201921079698U CN 210288357 U CN210288357 U CN 210288357U
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- pile
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- upright post
- rods
- centering device
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Abstract
The utility model relates to a pile center centering device of a cast-in-place pile, which comprises a vertical upright post and a plurality of arc wedge plates embedded in soil, wherein the lower end of the upright post is fixed with four groups of support rods, and the plane of the support rods is vertical to the upright post; the support rods are circumferentially distributed around the axis of the upright post, the periphery of each support rod is sleeved with a slide rod, the slide rods slide relative to the support rods, the tail ends of the slide rods are rotatably connected with rollers, and rotating shafts of the rollers are parallel to the upright post; and a connecting rod mechanism is arranged between the upright post and the plurality of sliding rods and drives the plurality of sliding rods to slide synchronously. Through the arrangement, in the process of determining the center of the cast-in-place pile, the distance between each wedge plate and the center of the cast-in-place pile is close to the distance between each wedge plate and the edge of the drilled hole through continuous adjustment, the accuracy of determining the center of the cast-in-place pile can be further improved, and the determined pile core can be continuously positioned by the wedge plates fixed with soil.
Description
Technical Field
The utility model belongs to the technical field of the technique of construction and specifically relates to a bored concrete pile core centering device is related to.
Background
The cast-in-place pile is a foundation pile widely applied to the fields of industrial plants, civil buildings, high-speed rails, bridges and the like. Before the construction of a cast-in-place pile, a technician usually uses instrumentation to accurately position and point the core of the pile. In the construction process of the cast-in-place pile, the positioned pile core needs to be in place and rechecked for multiple times, such as pile foundation casing positioning, pile foundation reinforcement cage positioning and the like. Because the construction site environment of the cast-in-place pile is poor, the foundation pit is uneven, muddy water is diffused, the construction process is carried out, the pile head protection barrel is fixed, the hole is formed mechanically, soil is dug, unloaded, slag is removed, the hole depth is controlled repeatedly, the pile machine and the pile head move for many times and often deviate, and the positioned pile core needs to be positioned and rechecked for many times.
The existing method for rechecking or centering the positioned pile core is commonly observed by naked eyes, so that errors during rechecking and centering are large, and the engineering quality is influenced, so that an improvement space exists.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a bored concrete pile core centering device has the effect of advancing line location to the core to can continuously fix a position the core of confirmed pile.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a pile center centering device for a cast-in-place pile comprises a vertical column and a plurality of arc wedge plates embedded into soil, wherein four groups of support rods are fixed at the lower end of the vertical column, and the plane where the support rods are located is perpendicular to the vertical column; the supporting rods are distributed around the axis circumference of the upright post, sliding rods are sleeved on the periphery of the supporting rods and slide relative to the supporting rods, the tail ends of the sliding rods are rotatably connected with rollers, and rotating shafts of the rollers are parallel to the upright post; and a connecting rod mechanism is arranged between the upright post and the plurality of sliding rods and drives the plurality of sliding rods to slide synchronously.
Through the arrangement, the four groups of arc-shaped wedge plates are wedged into soil on the periphery of a drilled hole drilled by the drilling machine, the four groups of arc-shaped wedge plates are arranged in a cross manner in a pairwise opposite mode, the inner arc surfaces of the wedge plates face the direction of the drilled hole, the wedge plates are close to the drilled hole as far as possible, or the wedge plates and the periphery of the drilled hole are arranged at equal intervals. Four groups of support rods are vertically fixed at the lower end of the vertically arranged stand column, the support rods are distributed at equal angles around the circumference of the axis of the stand column, a sliding rod is sleeved outside each support rod, rollers are fixed at one ends of the sliding rods, which are far away from the stand column, and the planes of the rollers are coplanar and perpendicular to the stand column. And a connecting rod mechanism is arranged between the upright post and each sliding rod, and the connecting rod mechanism drives each sliding rod to synchronously slide towards the direction far away from the upright post and has the same displacement, so that the distance between each roller and the axis of the upright post is always kept consistent. Thereby through the motion of drive slide bar to the direction of keeping away from the stand, all with each wedge plate butt, or with most wedge plate butt, the axis at stand place is the center of bored concrete pile this moment. The stand column can be rotated through the axis around the stand column when the center of the cast-in-place pile is determined through the arrangement of the idler wheels, the position of the stand column is adjusted to the position of each idler wheel to be abutted against the wedge plate, the efficiency of determining the center of the pile casing is improved, and the effect of rapidly determining the center of the cast-in-place pile is achieved. In the process of determining the center of the cast-in-place pile, the distance between each wedge plate and the center of the cast-in-place pile is close to the distance between each wedge plate and the edge of the drilled hole through continuous adjustment, the accuracy of determining the center of the cast-in-place pile can be further improved, and the wedge plates fixed with soil can be used for continuously positioning the determined pile center.
The utility model discloses further set up, the equal sharp-pointed setting of wedge plate lower extreme, the wedge plate top all is fixed with the lug, the lug with the wiring has the connection rope between the stand.
Through the setting, with the sharp-pointed setting of lower extreme of wedge plate, can the person of facilitating the use wedge the wedge plate in earth, be fixed with the lug at the wedge plate top, can the person of facilitating the use grip or mention the wedge plate, with the wiring between lug and the stand have the connection rope, can be connected between wedge plate and the stand, prevent that the user from losing one's hand with in dropping drilling such as stand and support frame to can be convenient for mention the wedge plate.
The utility model discloses further set up, link mechanism include with the sliding sleeve that the stand cup jointed, the sliding sleeve with stand sliding connection, the sliding sleeve sets up the bracing piece top, the sliding sleeve with all be connected with the connecting rod between the slide bar, the one end of connecting rod with the sliding sleeve is articulated, the other end of connecting rod with the slide bar is articulated.
Through the arrangement, the connecting rod device comprises a sliding sleeve which is sleeved with the stand column, the sliding sleeve is positioned above the supporting rod, connecting rods with the same length are connected between the sliding sleeve and each sliding rod, and two ends of each connecting rod are hinged to the sliding sleeve and the corresponding sliding rod respectively. Thereby when the axis direction along the stand removes the sliding sleeve, the sliding sleeve pulls the connecting rod to drive the slide bar and removes along the length direction of bracing piece to because connecting rod length is the same, make the displacement volume homoenergetic of each sliding sleeve equal, realized that the distance between each gyro wheel and the stand axis remains unanimous function throughout, and then can fix a position the center of protecting a section of thick bamboo through circumscribed circle theorem.
The utility model discloses further set up, the sliding sleeve outer peripheral face link up and is provided with the jackscrew, the jackscrew with sliding sleeve threaded connection, the jackscrew with the stand butt.
Through the arrangement, the outer peripheral surface of the sheath penetrates through the jackscrew, the jackscrew is in threaded connection with the through hole through which the sliding sleeve is penetrated, and the jackscrew is tightly abutted to the outer peripheral surface of the stand column. Through the setting of jackscrew, when the sliding sleeve slided to the position of gyro wheel with a protecting section of thick bamboo butt, through screwing up the jackscrew, made the jackscrew support tight stand, increase the frictional force between jackscrew and the stand, and then realized fixing between microphone and the stand.
The utility model discloses further set up, it is a plurality of laser pen is installed at bracing piece tie point center, the laser pen sets up the lower terminal surface of bracing piece, the ray of laser pen with the axis collineation setting of stand.
Through the setting, the axis at the tie point center of a plurality of bracing pieces and stand is fixed with the laser pen, and the lower terminal surface at the bracing piece is installed to the laser pen to when fixing a position a section of thick bamboo center through the device, utilize the principle of light along the rectilinear propagation, can shine through the laser pen and carry out quick location, improve the accuracy to protecting a section of thick bamboo center location, reduce the error.
The utility model discloses further set up, the stand top is provided with the handle.
Through the arrangement, the handle is fixed at the top end of the stand column, a user can conveniently grip and control the device, the handle can be gripped by one hand, and the other hand can control the movement of the sliding sleeve, so that the use comfort of the device is improved.
The utility model discloses further set up, the handle with the stand is fixed, the handle include three at least groups with stand vertically handle, the handle outer peripheral face sets up roughly.
Through the arrangement, the handle is arranged into at least three groups of handle shapes vertical to the upright post, the three groups of handles are distributed around the circumference of the axis of the upright post, and the peripheral surface of the handle is provided with rough grains. The three groups of handles are arranged, so that a user can conveniently hold the handles to rotate the device for positioning, the use comfort is improved, the friction coefficient of the peripheral surfaces of the handles is improved through the arrangement of rough grains, and the user can conveniently hold the handles and is not easy to take off the hands.
The utility model discloses further set up, the up end of bracing piece is provided with the scale mark.
Through the arrangement, the standard scale marks are arranged on the upper end face of the supporting rod, so that a user can observe the distance of the sliding rod extending out of the supporting rod, the distance of the roller from the central axis of the opposite column can be obtained, the inner diameter of the pile casing can be derived conveniently, and the user can perform positioning and measurement conveniently.
The utility model discloses further set up, state the connecting rod with contained angle between the slide bar is greater than 90 all the time.
Through the arrangement, the included angle between the connecting rod and the sliding rod is always kept larger than 90 degrees in the moving process of the sliding rod, so that the connecting rod is not parallel to the moving direction of the sliding sleeve, dead points are avoided from being generated, the sliding sleeve cannot be pushed towards the direction of the supporting rod, the function of facilitating pushing the sliding rod to stretch out is achieved, and the operation comfort of the device is further improved.
To sum up, the utility model discloses following beneficial effect has:
1. four groups of support rods distributed around the axis of the upright post at a certain included angle are arranged, slide rods are sleeved outside the support rods in a sliding manner, one ends of the slide rods, far away from the upright post, are rotatably connected with rollers, and the slide rods synchronously slide relative to the support rods under the driving of a connecting rod mechanism, so that the central axis of the upright post is collinear with the central line of the cast-in-place pile when the rollers are abutted against the wedge plates, and the center of the cast-in-place pile is positioned;
2. the handle consisting of the multiple handles is fixed at the top end of the upright post, so that a user can conveniently control the device and rotate the device, and the efficiency of positioning the center of the pile casing is improved;
3. through lining up and threaded connection at the sliding sleeve outer peripheral face, the jackscrew supports tight stand setting, plays and carries out the effect of fixing to the position of sliding sleeve relative stand, and the setting of the laser pen of terminal surface under the bracing piece is set up in the cooperation, and the person of facilitating the use vacates the hand and fixes a position and mark to protecting a section of thick bamboo center, has improved the device's use travelling comfort.
Drawings
FIG. 1 is a schematic structural diagram of the present embodiment;
fig. 2 is a schematic structural diagram of the present embodiment during measurement.
Reference numerals: 1. a column; 11. a sliding sleeve; 12. carrying out top thread; 2. a support bar; 21. a slide bar; 22. a roller; 23. scale lines; 3. a connecting rod; 4. a laser pen; 5. a handle; 51. a grip; 6. drilling; 7. a wedge plate; 71. a bump; 72. and connecting ropes.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1-2, the utility model discloses a bored concrete pile core centering device, including the isometric bracing piece 2 of four groups, the one end reciprocal anchorage of four group's bracing pieces 2 makes four group's bracing pieces 2 wholly be type "ten" style of calligraphy, still vertically is provided with stand 1, and the plane that stand 1 and each bracing piece 2 are constituteed is perpendicular, the nodical fixed connection between stand 1 and each bracing piece 2.
The cross section of the support rod 2 is rectangular, the periphery of each support rod 2 is sleeved with a rectangular slide rod 21, the slide rod 21 wraps the support rod 2, one end, far away from the stand column 1, of the slide rod 21 is rotatably connected with a roller 22, planes where the rollers 22 are located are parallel and coplanar, and the stand column 1 is perpendicular to the plane where the rollers 22 are located, namely the rotating shaft of each roller 22 is parallel to the stand column 1.
A connecting rod 3 mechanism is arranged between the upright post 1 and each sliding rod 21, the connecting rod 3 mechanism comprises a sliding sleeve 11 which is sleeved and slid with the periphery of the upright post 1, the sliding sleeve 11 is arranged above the supporting rod 2, the connecting rod 3 is connected between the sliding sleeve 11 and each sliding rod 21, and two ends of the connecting rod 3 are respectively hinged with the sliding sleeve 11 and the sliding rod 21. Wherein the length of four groups of connecting rods 3 is equal, the connecting rods 3 and the hinge points of the sliding sleeve 11 are arranged at the same height, and the hinge points between each group of connecting rods 3 and the sliding sleeve 11 are arranged at the same position. Therefore, when the sliding sleeve 11 moves along the axial direction of the upright post 1, the sliding sleeve 11 drives each connecting rod 3 to move, each connecting rod 3 simultaneously drives the sliding rod 21 to synchronously slide along the length direction of the supporting rod 2 sleeved with the sliding rod, and the displacement amounts are the same. The hinge point positions at the two ends of the connecting rod 3 meet the condition that the included angle between the connecting rod 3 and the sliding rod 21 is always larger than 90 degrees, so that the sliding sleeve 11 avoids the dead point position in the process of driving the connecting rod 3 to move.
Wherein the peripheral face at the sliding sleeve 11 link up and is provided with jackscrew 12, and jackscrew 12 and the through-hole threaded connection that the swivel nut link up, jackscrew 12 and stand 1 butt improve the frictional force between jackscrew 12 and stand 1 through screwing up jackscrew 12, realize relatively fixed with swivel nut and stand 1.
The lower end face of the connecting point of each supporting rod 2 is provided with a laser pen 4, and the ray of the laser pen 4 is collinear with the central axis of the upright post 1.
Wherein be fixed with handle 5 at the top of stand 1, handle 5 includes three groups and stand 1 vertically my bar, coplane between three group's grips 51, and three group's grips 51 are around the equal angle circumference setting of stand 1's axis, and the periphery of grip 51 is crude to be set up. The arrangement of the grip 51 facilitates the user's handling and control of the device.
The scale mark 23 is carved with at the up end of bracing piece 2, and the sliding sleeve 11 covers scale mark 23, when the sliding sleeve 11 removed along the length direction of bracing piece 2, the biggest scale mark 23 that exposes was the distance that the bracing piece 2 was stretched out for sliding sleeve 11, and then the length of gyro wheel 22 apart from stand 1 axis when being 0 through measuring the scale, can reachs the internal diameter of protecting a section of thick bamboo.
The pile center centering device for the cast-in-place pile further comprises four groups of arc-shaped wedge plates 7 which are embedded into soil, the lower ends of the wedge plates 7 are arranged in a sharp mode, rectangular convex blocks 71 are fixed to the tops of the wedge plates 7, and connecting ropes 72 are connected between the convex blocks 71 and the upright posts 1 in a winding mode.
The implementation principle of the embodiment is as follows:
when the pile center centering device for the cast-in-place pile is used, four groups of wedge plates 7 are embedded into the periphery of a drill hole 6, every two wedge plates 7 are arranged oppositely in a cross shape, inner arcs of the four groups of wedge plates 7 are arranged towards the drill hole 6, the positions, embedded into soil, of the wedge plates 7 are arranged close to the drill hole 6 as far as possible, or the wedge plates 7 and the periphery of the drill hole 6 are arranged at equal intervals.
Then grip handle 5 and put the device below to drilling 6 tops, through removing sliding sleeve 11 and continuing to rotate the device around the axis of stand 1, until four groups of gyro wheels 22 all with the intrados butt of wedge plate 7, the axis of stand 1 and the center collineation of bored concrete pile this moment realize the location to the stake heart of bored concrete pile.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Claims (9)
1. The utility model provides a bored concrete pile core centering device which characterized by: the device comprises a vertical column (1) and a plurality of arc-shaped wedge plates (7) embedded into soil, wherein four groups of support rods (2) are fixed at the lower end of the vertical column (1), and the plane of each support rod (2) is perpendicular to the vertical column (1); the supporting rods (2) are circumferentially distributed around the axis of the upright post (1), sliding rods (21) are sleeved on the periphery of the supporting rods (2), the sliding rods (21) slide relative to the supporting rods (2), the tail ends of the sliding rods (21) are rotatably connected with idler wheels (22), and rotating shafts of the idler wheels (22) are parallel to the upright post (1); a connecting rod (3) mechanism is arranged between the upright post (1) and the plurality of sliding rods (21), and the connecting rod (3) mechanism drives the plurality of sliding rods (21) to synchronously slide.
2. The pile core centering device of the cast-in-place pile of claim 1, which is characterized in that: the lower end of the wedge plate (7) is sharp, the top of the wedge plate (7) is fixed with a bump (71), and a connecting rope (72) is connected between the bump (71) and the upright post (1) in a winding manner.
3. The pile core centering device of the cast-in-place pile of claim 1, which is characterized in that: connecting rod (3) mechanism include with sliding sleeve (11) that stand (1) cup jointed, sliding sleeve (11) with stand (1) sliding connection, sliding sleeve (11) set up bracing piece (2) top, sliding sleeve (11) with all be connected with connecting rod (3) between slide bar (21), the one end of connecting rod (3) with sliding sleeve (11) are articulated, the other end of connecting rod (3) with slide bar (21) are articulated.
4. The pile core centering device of the cast-in-place pile of claim 3, which is characterized in that: the outer peripheral face of the sliding sleeve (11) is provided with a jackscrew (12) in a penetrating mode, the jackscrew (12) is in threaded connection with the sliding sleeve (11), and the jackscrew (12) is abutted to the upright post (1).
5. The pile core centering device of the cast-in-place pile of claim 1, which is characterized in that: a plurality of laser pen (4) are installed at bracing piece (2) tie point center, laser pen (4) set up the lower terminal surface of bracing piece (2), the ray of laser pen (4) with the axis collineation setting of stand (1).
6. The pile core centering device of the cast-in-place pile of claim 1, which is characterized in that: the top end of the upright post (1) is provided with a handle (5).
7. The pile core centering device of the cast-in-place pile of claim 6, which is characterized in that: the handle (5) is fixed with the upright post (1), the handle (5) comprises at least three groups of grips (51) vertical to the upright post (1), and the outer peripheral surface of each grip (51) is arranged roughly.
8. The pile core centering device of the cast-in-place pile of claim 3, which is characterized in that: the upper end face of the support rod (2) is provided with scale marks (23).
9. The pile core centering device of the cast-in-place pile of claim 3, which is characterized in that: the included angle between the connecting rod (3) and the sliding rod (21) is always larger than 90 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921079698.5U CN210288357U (en) | 2019-07-09 | 2019-07-09 | Pile core centering device for cast-in-place pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921079698.5U CN210288357U (en) | 2019-07-09 | 2019-07-09 | Pile core centering device for cast-in-place pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210288357U true CN210288357U (en) | 2020-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921079698.5U Expired - Fee Related CN210288357U (en) | 2019-07-09 | 2019-07-09 | Pile core centering device for cast-in-place pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210288357U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115434315A (en) * | 2022-09-16 | 2022-12-06 | 中交一公局第七工程有限公司 | Pressure-bearing type prestress anti-floating anchor rod and construction method |
-
2019
- 2019-07-09 CN CN201921079698.5U patent/CN210288357U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115434315A (en) * | 2022-09-16 | 2022-12-06 | 中交一公局第七工程有限公司 | Pressure-bearing type prestress anti-floating anchor rod and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200410 Termination date: 20210709 |