CN218628319U - Device for measuring gradient of full-casing cast-in-place pile - Google Patents
Device for measuring gradient of full-casing cast-in-place pile Download PDFInfo
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- CN218628319U CN218628319U CN202222800175.3U CN202222800175U CN218628319U CN 218628319 U CN218628319 U CN 218628319U CN 202222800175 U CN202222800175 U CN 202222800175U CN 218628319 U CN218628319 U CN 218628319U
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Abstract
The utility model discloses a device for measuring the gradient of a full-casing cast-in-place pile, which comprises a detection disc, wherein the detection disc comprises a double-layer structure formed by connecting a base and an upper cover; a plurality of semi-circular arc surface grooves are formed in the surfaces of the base and the upper cover at equal intervals along the diameter direction; the groove of the base is internally connected with a measuring mechanism. The device has solved prior art when carrying out the drilling gradient measurement, and the cost is higher when using precision instruments to measure, and the personnel operation degree of difficulty is big, and it is relatively poor to have the precision again when using simple and easy equipment to measure, receives the problem that external environment influences and leads to the error easily, has simple structure, and the flexible operation, it is very stable in the use, not influenced by external vibration, and with low costs, easily study and operation to can reach the characteristics of higher accuracy.
Description
Technical Field
The utility model belongs to the technical field of the municipal construction, in particular to measure device of protecting a bored concrete pile gradient entirely.
Background
The full-rotation full-casing rotary drilling machine is widely applied to places with high requirements on the perpendicularity of pile foundations, particularly longer secant piles, the perpendicularity precision is controlled within 1/300, and quality defects such as pile body splitting, insufficient secant and the like must be avoided; therefore, after the hole forming of the casing is completed, the verticality or inclination of the casing needs to be detected, and subsequent processes of pouring super-retarding concrete, lowering a reinforcement cage and the like can be performed only when the inclination is controlled within an error range. In the prior art, an ultrasonic inclinometer is often adopted for inclination detection, and the instrument is expensive and has high requirements on the quality of a user; other methods adopting the cage detection technology can only roughly evaluate whether the inclination standard is met or not, and cannot judge the specific value of the inclination; for example, patent No. CN204920938U discloses a drilling detector for a cast-in-situ bored pile, which measures the inclination of a drilled hole by a design combining a protractor and a level gauge, and uses an infrared distance measuring sensor to accurately measure the depth of the drilled hole; however, the device measures through the plumb bob, is easily affected by vibration to cause errors, and measurement data are not accurate; therefore, it is necessary to design a device for measuring the inclination of a full casing cast-in-place pile to solve the above problems.
Disclosure of Invention
The utility model aims at providing a measure device of protecting a bored concrete pile gradient entirely, the device has solved prior art when carrying out the measurement of drilling gradient, the cost is higher when using precision instruments to measure, the personnel operation degree of difficulty is big, it is relatively poor to have the precision again when using simple and easy equipment to measure, receive the problem that the external environment influence leads to the error easily, simple structure has, the flexible operation, it is very stable in the use, do not influenced by external vibration, and with low costs, easily study and operation, and can reach the characteristics of higher accuracy.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: a device for measuring the inclination of a full casing cast-in-place pile comprises a detection disc, wherein the detection disc comprises a double-layer structure formed by connecting a base and an upper cover; a plurality of semi-circular arc surface grooves are formed in the surfaces of the base and the upper cover at equal intervals along the diameter direction; the groove of the base is internally connected with a measuring mechanism.
Further, the diameter of the detection disc is slightly smaller than the inner diameter of the wall of the pile foundation construction protecting cylinder; the grooves are distributed in a shape of a needle, and 12 grooves are arranged in total.
Preferably, the measuring mechanism comprises a spring, and the spring is arranged in a groove of the base; one end of the spring is connected with the inner wall of one end of the groove close to the circle center.
Furthermore, the cross section of the groove is semicircular, after the upper cover and the base are spliced together and welded, the upper groove and the lower groove are aligned and spliced to form a circular cylindrical groove, so that the limitation can be effectively realized, the redundant displacement of the spring and the connecting rod in the groove can be avoided, and the telescopic movement of the spring and the connecting rod along the axial direction of the groove can only be ensured.
Preferably, one end, far away from the circle center, of the spring is connected with a columnar connecting rod in abutting fit with the wall of the pile casing, and the upper surface of the connecting rod is provided with scale marks.
Preferably, in the graduation mark, the end of the connecting rod far away from the spring is in 0 graduation.
Further, the accuracy of the graduation marks is in millimeters.
Preferably, the edge of the detection plate is connected with a lifting lug, and the lifting lug is fixed with the flexible steel wire rope.
Preferably, detection dish upper portion is connected with the panorama camera through the bracing piece, and the panorama camera passes through signal line and external display equipment electric connection.
Further, the panoramic camera adopts a charging type panoramic camera of RN-Q8 type; the signal line ligature of panorama camera is on flexible wire rope, extends to all the time and protects a section of thick bamboo outside and terminal equipment electric connection.
Furthermore, the upper surface of the detection disc is provided with a level bubble which can be observed by a panoramic camera, so that the detection disc is guaranteed to be in a horizontal state in the lowering process.
The beneficial effects of the utility model are that:
1, the device has simple structure, convenient manufacture, lower cost and more flexible use, and does not need higher cost and personnel operation requirements of precise instruments; can be effectively and rapidly put into use on the construction site;
2, this device is through the length difference calculation gradient between the spring of different orientations, has avoided the error influence that external vibration brought, can reach higher precision, satisfies job site's data demand.
Drawings
Fig. 1 is a schematic top view of the present invention;
FIG. 2 is a schematic front view of the present invention;
FIG. 3 is a schematic view of the utility model placed at the mouth of the casing;
FIG. 4 is a schematic horizontal cross-sectional view of the utility model after being placed inside the casing to a certain depth;
FIG. 5 is a schematic vertical cross-sectional view of the utility model after being placed inside the casing to a certain depth;
the reference numbers in the figures are: the device comprises a detection plate 1, a base 11, an upper cover 12, a groove 2, a measuring mechanism, a spring 31, a connecting rod 32, a scale mark 33, a flexible steel wire rope 4, a protective cylinder wall 5 and a panoramic camera 6.
Detailed Description
As shown in fig. 1 to 5, a device for measuring the inclination of a full casing cast-in-place pile comprises a detection plate 1, wherein the detection plate 1 comprises a double-layer structure formed by connecting a base 11 and an upper cover 12; a plurality of semi-circular arc surface grooves 2 are formed on the surfaces of the base 11 and the upper cover 12 at equal intervals along the diameter direction; the groove 2 of the base 11 is internally connected with a measuring mechanism.
Further, the diameter of the detection disc 1 is slightly smaller than the inner diameter of a pile foundation construction casing wall 5; the grooves 2 are distributed in a shape of a needle, and 12 grooves 2 are arranged in total; the detection disc 1 is made of a 40mm steel plate, and the radius of the groove 2 is 20mm.
Preferably, the measuring means comprise a spring 31, the spring 31 being arranged in the recess 2 of the base 11; one end of the spring 31 is connected with the inner wall of the groove 2 close to the circle center.
Further, the cross-section of groove 2 is the semicircle, and after upper cover 12 and base 11 pieced together the welding, upper and lower recess 2 aligns the amalgamation, constitutes a circular tube-shape recess 2, can be effectively spacing, avoids spring 31 and connecting rod 32 to take place unnecessary displacement wherein, ensures that it can only carry out concertina movement along groove 2 axial.
Preferably, a cylindrical connecting rod 32 is connected to one end of the spring 31 away from the center of the circle and is in interference fit with the protective cylinder wall 5, and the upper surface of the connecting rod 32 is provided with a scale mark 33.
Preferably, the end of the link 32 away from the spring 31 in the graduation mark 33 is a 0 graduation.
Further, the scale lines 33 have an accuracy in millimeters and a maximum measurement length of 200mm.
Preferably, the edge of the detection disc 1 is connected with a lifting lug, and the lifting lug is fixed with the flexible steel wire rope 4.
Preferably, the upper part of the detection disc 1 is connected with a panoramic camera 6 through a support rod, and the panoramic camera 6 is electrically connected with an external display device through a signal line.
Further, the panoramic camera 6 is a charging type panoramic camera 6 of an RN-Q8 model; the signal line ligature of panorama camera 6 is on flexible wire rope 4, extends to all the time and protects a section of thick bamboo outside and terminal equipment electric connection.
Furthermore, the upper surface of the detection disc 1 is provided with a level bubble which can be observed through the panoramic camera 6, so that the detection disc 1 is guaranteed to be in a horizontal state in the lowering process.
The utility model discloses a theory of operation does:
when in use, the detection disc 1 is slowly lowered to a preset position from the right center of the steel sleeve by using the flexible steel wire rope 4 or through the long rod; observing the horizontal bubble in the lowering process to ensure that the detection disc 1 is in a horizontal state; finally, finding out the maximum value and the minimum value according to the reading of the scale marks 33 of the detection disc 1 in each direction; calculating the inclination angle of the protective cylinder through a trigonometric function; the specific method comprises the following steps:
as shown in fig. 4; when the pile casing inclines, the detection disc 1 keeps horizontal, and the section of the inner wall of the pile casing where the detection disc 1 is located is an elliptical surface; as shown in fig. 5, under the action of the balance of the force of the spring 31, the detecting plate 1 stays at the center of the elliptic surface, and the inclination angle α can be calculated by the length a of the long end in combination with the known diameter b of the inner wall of the casing.
Claims (6)
1. The utility model provides a measure device of a full pile casing bored concrete pile gradient which characterized in that: the device comprises a detection disc (1), wherein the detection disc (1) comprises a double-layer structure formed by connecting a base (11) and an upper cover (12); a plurality of semi-circular arc surface grooves (2) are formed in the surfaces of the base (11) and the upper cover (12) at equal intervals along the diameter direction; the inner part of the groove (2) of the base (11) is connected with a measuring mechanism.
2. The device for measuring the inclination of a full casing cast-in-place pile according to claim 1, wherein: the measuring mechanism comprises a spring (31), and the spring (31) is arranged in the groove (2) of the base (11); one end of the spring (31) is connected with the inner wall of one end of the groove (2) close to the circle center.
3. The device for measuring the inclination of a full casing cast-in-place pile according to claim 2, wherein: one end, far away from the circle center, of the spring (31) is connected with a columnar connecting rod (32) which is in abutting fit with the protective cylinder wall (5), and scale marks (33) are arranged on the upper surface of the connecting rod (32).
4. A device for measuring the inclination of a full casing bored concrete pile according to claim 3, wherein: in the scale marks (33), one end of the connecting rod (32) far away from the spring (31) is provided with 0 scale.
5. The device for measuring the inclination of a full casing cast-in-place pile according to claim 1, wherein: the edge of the detection disc (1) is connected with a lifting lug, and the lifting lug is fixed with the flexible steel wire rope (4).
6. The device for measuring the inclination of a full casing cast-in-place pile according to claim 1, wherein: detect dish (1) upper portion and be connected with panorama camera (6) through the bracing piece, panorama camera (6) pass through signal line and external display equipment electric connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222800175.3U CN218628319U (en) | 2022-10-24 | 2022-10-24 | Device for measuring gradient of full-casing cast-in-place pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222800175.3U CN218628319U (en) | 2022-10-24 | 2022-10-24 | Device for measuring gradient of full-casing cast-in-place pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218628319U true CN218628319U (en) | 2023-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222800175.3U Active CN218628319U (en) | 2022-10-24 | 2022-10-24 | Device for measuring gradient of full-casing cast-in-place pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218628319U (en) |
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2022
- 2022-10-24 CN CN202222800175.3U patent/CN218628319U/en active Active
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