Cast-in-place pile concrete elevation control device

Abstract

The utility model relates to the field of cast-in-place piles, and discloses a cast-in-place pile concrete elevation control device which comprises a leakage cage and a lifting rod, the leakage cage is an ellipsoidal cage formed by welding a plurality of arc-shaped rods, the middle of the leakage cage is large, the two ends of the leakage cage are small, one end of the leakage cage is provided with a connector connected with the lifting rod, and the lifting rod is detachably connected with the connector. Scale marks are arranged on the lifting rod. The device is simple in structure, low in manufacturing cost, convenient to use and capable of accurately measuring whether the pouring elevation of the concrete in the cast-in-place pile reaches the set elevation or not.

Description

Technical Field

[0001] The utility model relates to the field of cast-in-place piles, in particular to a cast-in-place pile concrete elevation control device. Background Art

[0002] Because cast-in-place concrete piles are often poured underwater, the presence of large amounts of retaining mud and cement paste during the pouring process creates turbidity in the water. This makes it difficult to accurately determine the elevation of the finished concrete pouring surface. Inaccurate determination can result in over-concrete pouring, increased virtual pile length, or insufficient concrete pouring, resulting in substandard concrete surface quality at the intersection of the pile top and the mud surface. Currently, the traditional method for determining the elevation of the finished concrete pouring surface relies on empirical judgment or the use of homemade measuring ropes. The former has poor measurement accuracy, while the latter is inconvenient to use.

[0003] Based on this, the present application provides a cast-in-place pile concrete elevation control device with a simple structure, low manufacturing cost, accurate measurement, and easy use to solve the above problems. Utility Model Content

[0004] The utility model aims to solve the technical problems existing in the prior art. To this end, the utility model provides a cast-in-place pile concrete elevation control device which has a simple structure, low manufacturing cost, accurate measurement and is easy to use.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] Provided is a cast-in-place pile concrete elevation control device, comprising a sieve cage and a lifting rod. The sieve cage is an ellipsoidal cage formed by welding multiple arc-shaped rods, with a large middle part and small ends. One end of the sieve cage is provided with a connector connected to the lifting rod, and the lifting rod is detachably connected to the connector; and scale lines are provided on the lifting rod.

[0007] In a preferred embodiment of the present invention, a handle is provided at one end of the lifting rod away from the strainer.

[0008] In a preferred embodiment of the present invention, the connector is welded or threadedly connected to the lifting rod or plugged in and then fixed by a positioning pin.

[0009] In a preferred embodiment of the present invention, a barrier net is provided around the outer side or inner side of the cage away from the lifting rod end.

[0010] In a preferred embodiment of the present invention, it also includes a fixed bracket and a sliding sleeve, the sliding sleeve is slidably mounted on the lifting rod, and the sliding sleeve is provided with a second connecting head, the fixed bracket is provided with a connecting arm connected to the second connecting head, and the fixed bracket is fixed to the ground.

[0011] In a preferred embodiment of the present invention, the second connector is an externally threaded column, a nut is rotatably provided on the connecting arm, and the nut is threadedly connected to the externally threaded column.

[0012] In a preferred embodiment of the present invention, a limiting sleeve is further provided on the lifting rod, and a locking handle is screwed onto the limiting sleeve.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model can be directly inserted into the pile hole to a set depth (matching the set elevation of the pouring completion surface), and the lifting rod can be quickly pulled in a short stroke, and then slowly pulled out to observe whether there is concrete aggregate in the cage. If not, it means that the set pouring completion surface has not been reached. If so, it means that the set pouring completion surface has been reached. When the pile hole insertion depth is obviously shorter than the set depth, there is obvious resistance, and the surface has exceeded the set pouring completion surface. The excess amount can be judged according to the scale line, thereby accurately measuring whether the pouring elevation of the concrete in the bored pile has reached the set elevation. It has the advantages of simple structure, low production cost and easy use.

[0015] 2. The arrangement of the fixed bracket and the sliding sleeve can ensure that the device is in a vertical downward position when in use, thereby ensuring the accuracy of the measurement;

[0016] 3. The limiting sleeve provided on the lifting rod, in conjunction with the fixed bracket and the sliding sleeve, can limit the depth of the device inserted into the pile hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. Among them:

[0018] Figure 1 This is a diagram showing the use status of the cast-in-place pile concrete elevation control device provided by the utility model;

[0019] Figure 2 This is a structural diagram of the leak cage provided by the utility model;

[0020] Figure 3 yes Figure 1 A magnified partial view is provided.

[0021] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0022] 1—strainer, 1.1—connecting head, 2—lifting rod, 2.1—scale line, 3—handle, 4—blocking net, 5—fixed bracket, 5.1—connecting arm, 5.2—nut, 6—sliding sleeve, 6.1—second connecting head, 7—limiting sleeve, 8—locking handle. DETAILED DESCRIPTION

[0023] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0024] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like, indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate description and simplify the present invention. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed or operate in a specific direction. Therefore, they should not be construed as limiting the present invention.

[0026] In addition, the descriptions involving the terms "first", "second", etc. in the present invention are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. The terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0028] Example 1

[0029] Please refer to the instructions attached Figure 1This embodiment provides a cast-in-place pile concrete elevation control device, including a cage 1 and a lifting rod 2, wherein: Figure 2 As shown, the cage 1 is an ellipsoidal cage welded by multiple arc-shaped rods. The cage of this embodiment is welded using 4 to 8 steel bars, which are large in the middle and small at both ends. The height should be 15 to 20 cm, the width should be 8 to 10 cm, and the maximum spacing between two adjacent steel bars should be 2 to 4 cm, which is adjusted according to the concrete grading to ensure that coarse aggregate can enter the cage. One end of the cage 1 is provided with a connector 1.1 connected to the lifting rod 2, and the lifting rod 2 is detachably connected to the connector 1.1; specifically, the connector 1.1 is welded or threaded or plugged with the lifting rod 2 and fixed by a locating pin. The connector 1.1 in this embodiment is preferably threaded with the lifting rod 2; a scale line 2.1 is provided on the lifting rod 2, and the scale accuracy of the scale line is 10 cm.

[0030] Preferably, as attached Figure 1 As shown, a handle 3 is provided at one end of the lifting rod 2 away from the strainer 1 for convenient handheld operation.

[0031] Preferably, as attached Figure 2 As shown, the outer side or inner side of the cage 1 away from the lifting rod 2 is further surrounded by a blocking net 4. When the number of steel bars used in the cage is small, the gap between two adjacent steel bars is large. At this time, the blocking net can be used to block the concrete aggregate entering the cage to prevent the aggregate from falling out.

[0032] During specific use, when the underwater concrete pouring of the concrete bored pile is about to reach the designed elevation, the operator can insert the elevation control device directly into the pile hole to set the depth (matching the elevation of the set pouring completion surface), and hold the handle to quickly pull the lifting rod in a short stroke, and then slowly pull it out to observe whether there is concrete aggregate in the cage. If not, it has not reached the set pouring completion surface. If so, it has reached the set pouring completion surface. When the insertion depth of the pile hole is obviously shorter than the set depth, there is obvious resistance, and the surface has exceeded the set pouring completion surface. The excess amount can be judged according to the scale line, thereby accurately measuring whether the pouring elevation of the concrete in the bored pile has reached the set elevation. It has the advantages of simple structure, low production cost and easy use.

[0033] Example 2

[0034] Based on the first embodiment, as shown in the attached Figure 1 As shown, this embodiment also includes a fixed bracket 5 and a sliding sleeve 6. The sliding sleeve 6 is slidably mounted on the lifting rod 2. The sliding sleeve 6 is provided with a second connector 6.1. The fixed bracket 5 is provided with a connecting arm 5.1 connected to the second connector 6.1. The fixed bracket 5 is fixed to the ground. In this embodiment, the sliding sleeve is fixed to the fixed bracket to ensure that the elevation control device can only move vertically, thereby ensuring measurement accuracy.

[0035] Preferably, as attached Figure 3 As shown, the second connector 6.1 is an externally threaded column, and a nut 5.2 is rotatably provided on the connecting arm 5.1, and the nut 5.2 is threadedly connected to the externally threaded column. This connection method only requires the second connector to be connected to the connecting arm and the nut to be tightened to fix the sleeve, which is quick and convenient.

[0036] Example 3

[0037] Based on the second embodiment, this embodiment further provides a limit sleeve 7 on the lifting rod 2, and a locking handle 8 is screwed onto the limit sleeve 7. This design allows the position of the limit sleeve on the lifting rod to be adjusted according to the set elevation of the casting surface. After the position is adjusted, the position of the limit sleeve is locked by the loose handle. When the limit sleeve contacts the sliding sleeve, the insertion depth is reached, eliminating the need for real-time monitoring of the insertion depth, making it more convenient to use.

[0038] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A cast-in-place pile concrete elevation control device, characterized by: The invention comprises a spherical cage and a lifting rod. The spherical cage is formed by welding a plurality of arc-shaped rods. The spherical cage has a large center and small ends. The overall height is 15 to 20 cm and the width is 8 to 10 cm. The maximum spacing between two adjacent arc-shaped rods is 2 to 4 cm, so that coarse aggregate in concrete can enter the spherical cage. One end of the spherical cage is provided with a connector connected to the lifting rod. The lifting rod and the connector are detachably connected. The lifting rod is provided with scale lines. The outer side or the inner side of the filter cage away from one end of the lifting rod is further surrounded by a blocking net, and the aperture of the blocking net is smaller than the particle diameter of the coarse aggregate.

2. The cast-in-place pile concrete elevation control device according to claim 1, characterized in that: A handle is provided at one end of the lifting rod away from the strainer.

3. The cast-in-place pile concrete elevation control device according to claim 1, characterized in that: The connector is welded or threadedly connected to the lifting rod or plugged in and then fixed by a positioning pin.

4. The cast-in-place pile concrete elevation control device according to claim 1, characterized in that: It also includes a fixed bracket and a sliding sleeve, the sliding sleeve is slidably mounted on the lifting rod, and the sliding sleeve is provided with a second connecting head, the fixed bracket is provided with a connecting arm connected to the second connecting head, and the fixed bracket is fixed to the ground.

5. The cast-in-place pile concrete elevation control device according to claim 4, characterized in that: The second connecting head is an external thread column, and a nut is rotatably provided on the connecting arm, and the nut is threadedly connected to the external thread column.

6. The cast-in-place pile concrete elevation control device according to claim 4, characterized in that: A limiting sleeve is also provided on the lifting rod, and a locking handle is screwed on the limiting sleeve.

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