阅读说明：本技术 混凝土桩基浇筑深度测量装置及其测量方法 (Concrete pile foundation pouring depth measuring device and measuring method thereof ) 是由 苑洪伟 娄立军 孙培 刘秋宏 于 2021-08-13 设计创作，主要内容包括：本发明涉及一种混凝土桩基浇筑深度测量装置及其测量的方法,属于测量仪器。本发明采用的技术方案是：包括顶针、探头、壳体、触控开关、指示灯和牵引绳；探头设置在顶针的下端部位置,顶针的上部深入壳体内,壳体内设置触控开关,触控开关包括金属动触点和金属静触点,金属动触点设置在顶针的顶部,金属静触点固定在壳体内,金属动触点和金属静触点处于同一竖直方向上,金属静触点和金属动触点分别连接导线,导线、指示灯和电源相连成导电回路；顶针深入壳体内部位置设有导向机构。本装置在实际工程应用中,通过混凝土密度大的特点来判断泥浆中混凝土浇筑深度,简单便捷,该装置具有成本低,抗干扰能力强,结构简单等优点。(The invention relates to a concrete pile foundation pouring depth measuring device and a measuring method thereof, belonging to measuring instruments. The technical scheme adopted by the invention is as follows: the device comprises a thimble, a probe, a shell, a touch switch, an indicator light and a traction rope; the probe is arranged at the lower end part of the thimble, the upper part of the thimble extends into the shell, a touch switch is arranged in the shell and comprises a metal movable contact and a metal static contact, the metal movable contact is arranged at the top of the thimble, the metal static contact is fixed in the shell and is positioned in the same vertical direction, the metal static contact and the metal movable contact are respectively connected with a lead, and the lead, the indicator light and the power supply are connected to form a conductive loop; the thimble is equipped with guiding mechanism in the position of going deep into casing. This device is in practical engineering application, judges concrete placement degree of depth in the mud through the characteristics that concrete density is big, and is simple convenient, and the device has with low costs, and the interference killing feature is strong, advantages such as simple structure.)

1. A concrete pile foundation pouring depth measuring device is characterized by comprising a thimble (9), a probe (11), a shell (2), a touch switch, an indicator light and a traction rope (1); the probe (11) is arranged at the lower end part of the thimble (9), the upper part of the thimble (9) extends into the shell (2), a touch switch is arranged in the shell (2), the touch switch comprises a metal movable contact (7) and a metal static contact (6), the metal movable contact (7) is arranged at the top of the thimble (9), the metal static contact (6) is fixed in the shell (2), the metal movable contact (7) and the metal static contact (6) are positioned in the same vertical direction, the metal static contact (6) and the metal movable contact (7) are respectively connected with the lead (3), and the lead (3), the indicator light and the power supply are connected into a conductive loop;

the thimble (9) is provided with a guide mechanism (5) at the position where the thimble goes deep into the shell (2), and the probe (11) is upward along the guide mechanism after encountering poured concrete at the position of the pouring depth of the concrete pile foundation;

one end of a traction rope (1) is fixed on the shell (2), the other end of the traction rope (1) is arranged on the roller, and scales are arranged on the traction rope (1).

2. The concrete pile foundation pouring depth measuring device according to claim 1, wherein the shell (2) is provided with a spring cavity (12) at the lower part, a spring (10) is arranged in the spring cavity (12), the ejector pin (9) is provided with a spring limit (16) in the spring cavity (12), the spring limit (16) is positioned above the spring (10) and resists the backward movement of the spring (10), the front end of the spring (10) abuts against the lower bottom surface of the spring cavity (12), the spring cavity (12) is provided with openings at the upper part and the lower part, and the ejector pin (9) penetrates into the shell (2) after passing through the lower opening, the spring (10) and the upper opening.

3. The concrete pile foundation pouring depth measuring device according to claim 1, wherein the guide structure comprises two symmetrical slide rails (14) arranged in the shell (2), the slide rails (14) are arranged on the slide rails (14), the two slide blocks (15) are connected through a cross beam of a sliding cross beam (13), and the middle of the sliding cross beam (13) is fixed on the ejector pin (9).

4. The concrete pile foundation pouring depth measuring device according to claim 1, wherein the probe (11) is of a heavy hammer structure, and the shell (2) and the ejector pin (9) are made of insulating materials.

5. A concrete pile foundation casting depth measuring device according to claim 2, wherein the spring cavity (12) is arranged at the lower part of the shell (2) in a protruding way, and the thimble (9) of the spring cavity (12) is provided with a sealing material through the opening, and the sealing material prevents concrete from mixing into the spring cavity (12) and the shell (2).

6. The concrete pile foundation pouring depth measuring device according to claim 1, wherein the shell (2) is of an oval structure, a guide space is reserved in the middle of the inner lower half part, a guide mechanism (5) and an ejector pin (9) are arranged in the guide space, and a circle of the oval lower half part structure of the guide space is filled with a high-density material.

7. The concrete pile foundation pouring depth measuring device according to claim 6, wherein a guide hole (8) through which a thimble (9) penetrates is formed in the upper side surface of the guide space, a convex metal stationary contact (6) is formed in the top portion in the shell (2), the metal stationary contact (6) faces downwards, a convex metal convex point is formed on the surface of the metal stationary contact, a metal movable contact (7) on the top portion of the thimble (9) faces upwards, and the convex metal convex point is also formed on the surface of the metal movable contact.

8. The concrete pile foundation pouring depth measuring device according to claim 1, wherein a lead through hole is formed in the top of the shell (2), a lead (3) penetrates through the lead through hole, the lead (3) extends towards the position of the pile foundation pithead and is connected with an indicator light and a power supply in series, two groups of traction ropes (1) are arranged outside the shell (2), the lower ends of the two traction ropes (1) are fixed to the two convex sides of the elliptical shell (2), and the two traction ropes (1) are wound on different rollers driven by the same driving mechanism.

9. A method for measuring by using the concrete pile foundation casting depth measuring device according to any one of claims 1 to 8, characterized by comprising the steps of:

1) the measuring device is slowly placed in alignment with a concrete pile foundation pit through a traction rope (1) with scales, and the scales of the two traction lines are kept equal in the process of placing the measuring device down so as to ensure that the whole device is in a balanced state;

2) the measuring device is placed at a specified depth and kept suspended, at the moment, two hauling ropes (1) are adjusted, the device is moved up and down in a small range, concrete is continuously poured into a concrete pile foundation pit, the liquid level of the concrete rises continuously, and when the liquid level of the concrete contacts a probe (11), the device moves up and down continuously along with the measuring device;

3) when the measuring device moves downwards, the whole measuring device acts on the probe (11), the probe (11) moves upwards relative to the measuring device along the guide structure, the probe (11) drives the thimble (9) and the metal stationary contact (6) to move upwards, the metal stationary contact (6) is contacted with the metal movable contact (7), the power supply is communicated with the indicator light, the loop is closed, and the indicator light is on;

4) and reading the release length of the traction rope (1) to obtain the pouring depth size of the concrete pile foundation.

Technical Field

The invention relates to a concrete pile foundation pouring depth measuring device and a measuring method thereof, belonging to measuring instruments.

Background

In the construction process of a bridge, the construction of a pier is particularly important. The construction of the pier needs to pump cement pile foundations at the bottom of the water. Namely, professional equipment is used for drilling a well at the water bottom, and after the well drilling by the professional equipment is finished, a series of related measures are required to be taken in time to prevent the well wall from collapsing under the action of water pressure after the drill bit is drawn out. Among them, the slurry wall-fixing method is a method frequently used in construction sites such as bridges, in which slurry having a density of about 1.5 is poured into a well during drilling. After drilling, the well wall can not collapse under the support of mud, and then professional equipment is immediately adopted to pour cement into the well at a certain height. Since drilling is done at the bottom of the water, how to judge whether the cement reaches a specified height in the well becomes a difficult problem for the constructor on site. Therefore, a convenient and accurate cement material level detection device is urgently needed to realize in practical engineering application: when the cement is poured, the time when the cement sand reaches the expected height is known, so that the cement sand can be stopped from being continuously poured in time. At present, the main domestic methods for realizing the function detection comprise:

in the process of on-site construction, a person skilled in the relevant art carries a bamboo pole with a certain length to the underwater well and tamps the bamboo pole up and down continuously. The technician can only rely on experience to estimate whether the poured cement sand reaches the specified height, which can cause significant errors. The height of the sediment of the filling water is higher than the expected target, which causes a great deal of waste of materials, and the height of the sediment of the filling water is lower than the expected target, which causes a great deal of water seepage at the bottom of the well, thereby bringing about great potential safety hazard. Not only does this pose a certain threat to the personal safety of the workers working at the site, but it is impossible to carry out the method when the water depth reaches a certain depth (for example, piling the pile on the sea bottom).

Disclosure of Invention

The invention provides a concrete pile foundation pouring depth measuring device and a measuring method thereof, which solve the problem of concrete pouring depth in a concrete pile foundation filled with slurry.

In order to achieve the purpose, the invention adopts the technical scheme that:

the concrete pile foundation pouring depth measuring device comprises a thimble, a probe, a shell, a touch switch, an indicator light and a traction rope; the probe is arranged at the lower end part of the thimble, the upper part of the thimble extends into the shell, a touch switch is arranged in the shell and comprises a metal movable contact and a metal static contact, the metal movable contact is arranged at the top of the thimble, the metal static contact is fixed in the shell and is positioned in the same vertical direction, the metal static contact and the metal movable contact are respectively connected with a lead, and the lead, the indicator light and the power supply are connected to form a conductive loop;

the position of the thimble, which is deep into the shell, is provided with a guide mechanism, and the probe is upward along the guide mechanism after meeting poured concrete at the position of the pouring depth of the concrete pile foundation;

one end of a traction rope is fixed on the shell, the other end of the traction rope is arranged on the roller, and scales are arranged on the traction rope.

Preferably, the shell is provided with a spring cavity at the lower part, a spring is arranged in the spring cavity, the thimble is provided with a spring limit in the spring cavity, the spring limit is positioned above the spring and is abutted against the backward movement of the spring, the front end of the spring is abutted against the lower bottom surface of the spring cavity, the spring cavity is provided with openings at the upper part and the lower part, and the thimble penetrates through the lower opening, the spring and the upper opening and then goes deep into the shell.

Preferably, the guide structure comprises two symmetrical slide rails arranged in the shell, the slide rails are arranged on the slide rails, the two slide blocks are connected through a slide beam cross beam, and the middle of the slide beam is fixed on the thimble.

Preferably, the probe is of a heavy hammer structure, and the shell and the thimble are made of insulating materials.

Preferably, the spring cavity is arranged on the lower portion of the shell in a protruding mode, a sealing material is arranged on a penetrating opening of an ejector pin of the spring cavity, and the sealing material prevents concrete from mixing into the spring cavity and the shell.

Preferably, the shell is of an elliptical structure, a guide space is reserved in the middle of the lower half portion of the shell, a guide mechanism and an ejector pin are arranged in the guide space, and a high-density material is filled in the lower half portion of the ellipse of the circle of the guide space.

Preferably, the upper side surface of the guide space is provided with a guide hole through which the thimble passes, the top in the shell is provided with a convex metal stationary contact which faces downwards, the surface is provided with a convex metal convex point, the metal movable contact at the top of the thimble faces upwards, and the surface is also provided with a convex metal convex point.

Preferably, the top of the shell is provided with a lead through hole, the lead through hole penetrates through a lead, the lead extends to the position of the pile foundation pithead and is connected with the indicating lamp and the power supply in series, two groups of traction ropes are arranged outside the shell, the lower ends of the two traction ropes are fixed on two protruding sides of the elliptical shell, and the two traction ropes are wound on different rollers driven by the same driving mechanism.

The method for measuring by using the concrete pile foundation pouring depth measuring device comprises the following steps:

1) the measuring device is slowly placed in by aligning the measuring device with the concrete pile foundation pit through the hauling rope with scales, and the scales of the two hauling wires are kept equal in the lowering process of the measuring device, so that the whole device is ensured to be in a balanced state.

2) The measuring device is placed at a specified depth and kept suspended, at the moment, two hauling ropes are adjusted, the device is moved up and down in a small range, concrete is continuously poured into a foundation pit of the concrete pile, the liquid level of the concrete rises continuously, and when the liquid level of the concrete contacts with the probe, the device moves up and down continuously along with the measuring device;

3) when the measuring device moves downwards, the whole measuring device acts on the probe, the probe faces upwards relative to the measuring device along the guide structure, the probe drives the thimble and the metal static contact to face upwards, the metal static contact is in contact with the metal movable contact, the power supply is communicated with the indicator light, the loop is closed, and the indicator light is on;

4) and reading the release length of the traction rope to obtain the pouring depth size of the concrete pile foundation.

The invention has the beneficial effects that: this device is in practical engineering application, judges concrete placement degree of depth in the mud through the characteristics that concrete density is big, and is simple convenient, and the device has with low costs, and the interference killing feature is strong, advantages such as simple structure.

Drawings

Figure 1 is a schematic view of the structure of the present invention,

figure 2 is a schematic cut-away view of the present invention,

figure 3 is a view of the structure of a metallic stationary contact of the present invention,

fig. 4 is a top view of the present invention.

Fig. 5 is a circuit diagram of the present invention.

Reference numerals: 1. the device comprises a traction rope, 2, a shell, 3, a lead, 4, a high-density material, 5, a guide mechanism, 6, a metal stationary contact, 7, a metal movable contact, 8 guide holes, 9 ejector pins, 10, a spring, 11, a probe, 12, a spring cavity, 13, a sliding beam, 14, a sliding rail, 15, a sliding block, 16 and a spring for limiting.

Detailed Description

The following further illustrates the specific structure of the present invention:

the concrete pile foundation pouring depth measuring device comprises a thimble 9, a probe 11, a shell 2, a touch switch, an indicator light and a traction rope 1.

As shown in fig. 1 and 2, the housing 2 is an elliptical structure, a guide space is left in the middle of the inner lower half part, a guide mechanism 5 and an ejector pin 9 are arranged in the guide space, and a high-density material is filled in the elliptical lower half part of the periphery of the guide space.

The probe 11 is arranged at the lower end part of the thimble 9, the upper part of the thimble 9 extends into the shell 2, the shell 2 is internally provided with a touch switch, the touch switch comprises a metal movable contact 7 and a metal fixed contact 6, the metal movable contact 7 is arranged at the top of the thimble 9, the metal fixed contact 6 is fixed in the shell 2, the metal movable contact 7 and the metal fixed contact 6 are positioned in the same vertical direction, the metal fixed contact 6 and the metal movable contact 7 are respectively connected with the lead 3, and the lead 3, the indicator lamp and the power supply are connected to form a conductive loop. One end of a traction rope 1 is fixed on the shell 2, the other end of the traction rope 1 is arranged on the roller, and scales are arranged on the traction rope 1.

The thimble 9 is equipped with guiding mechanism 5 in going deep into casing 2 internal position, and probe 11 meets the good concrete back along guiding mechanism upwards at the concrete pile foundation depth position of pouring.

The guiding structure is shown in fig. 2, and comprises two symmetrical slide rails 14 arranged in the housing 2, the slide rails 14 are arranged on the slide rails 14, the two slide blocks 15 are connected with each other through a slide beam 13, and the middle of the slide beam 13 is fixed on the thimble 9. The guide structure can prevent the thimble from swinging left and right along with the probe, and avoid the metal movable contact and the metal stationary contact from being effectively touched.

The lower portion of the shell 2 is provided with a spring cavity 12, a spring 10 is arranged in the spring cavity 12, the ejector pin 9 is provided with a spring limiting 16 in the spring cavity 12, the spring limiting 16 is located above the spring 10 and resists backward movement of the spring 10, the front end of the spring 10 abuts against the lower bottom surface of the spring cavity 12, the spring cavity 12 is provided with openings at the upper portion and the lower portion, and the ejector pin 9 penetrates through the lower opening, the spring 10 and the upper opening and then penetrates into the shell 2.

The probe 11 is a heavy hammer structure, the housing 2 and the thimble 9 are made of insulating materials, and a conductive environment is generated on the surface to influence a circuit loop.

The spring cavity 12 is arranged at the lower part of the shell 2 in a protruding mode, and sealing materials are arranged at the penetrating opening of the thimble 9 of the spring cavity 12 and prevent concrete from mixing into the spring cavity 12 and the shell 2.

The upper side surface of the guide space is provided with a guide hole 8 through which a thimble 9 passes, the top in the shell 2 is provided with a convex metal static contact 6, the metal static contact 6 faces downwards, the surface is provided with a convex metal convex point, the metal movable contact 7 at the top of the thimble 9 faces upwards, and the surface is also provided with a convex metal convex point.

The top of casing 2 is equipped with the wire through hole, and wire 3 is worn to establish by the wire through hole, and wire 3 extends and is in the same place with pilot lamp and power series connection to the pile foundation pithead position, and the outside of casing 2 is equipped with two sets of haulage rope 1, and the lower extreme of two haulage ropes 1 is fixed in two protruding sides of oval casing 2, and two haulage rope 1 twines on same actuating mechanism driven different cylinders.

The casing had both played guide structure's guard action in this device, also played metal contact under as gravity device, offset the buoyancy of mud simultaneously and influence.

The following method for measuring by using the concrete pile foundation pouring depth measuring device mainly comprises the following steps:

1) the measuring device is slowly placed in a concrete pile foundation pit in an aligning mode through the traction rope 1 with scales, and the scales of the two traction lines are kept equal in the lowering process of the measuring device, so that the whole device is in a balanced state.

2) The measuring device is placed at a specified depth and kept suspended, at the moment, the two hauling ropes 1 are adjusted, the device is moved up and down in a small range, concrete is continuously poured into a foundation pit of the concrete pile, the liquid level of the concrete rises continuously, and when the liquid level of the concrete contacts the probe 11, the concrete continuously moves up and down along with the measuring device;

3) when the measuring device moves downwards, the whole measuring device acts on the probe 11, the probe 11 moves upwards relative to the measuring device along the guide structure, the probe 11 drives the thimble 9 and the metal stationary contact 6 to move upwards, the metal stationary contact 6 is contacted with the metal movable contact 7, the power supply is communicated with the indicator light, the loop is closed, and the indicator light is on;

4) and reading the release length of the traction rope 1 to obtain the pouring depth size of the concrete pile foundation.

The concrete using process is further explained by combining the device and the steps, during measurement, the relevant power supply and the electric wire are well connected and arranged, so that the whole device is in a normal working state, wherein the indicator light is positioned at the upper opening position of the concrete pile foundation, and the lower signal is conveniently observed. Aim at concrete pile foundation ditch with scale haulage rope 1 and slowly transfer this detection device at the uniform velocity, observe two haulage rope 1's that have the scale simultaneously scale, if the scale is inequality, in time adjust the haulage rope and make the scale of two haulage ropes keep the same so that whole device is in balanced state. In the process, the probe drives the thimble to drop, the spring is limited and extrudes the spring, the metal stationary contact and the metal movable contact are in a separated state, the power supply loop is in an open circuit state, and the indicator light is not on.

When the probe reaches the depth of a concrete pouring position, the two traction ropes are adjusted up and down, when the probe 11 contacts the concrete, the probe drives the thimble to be embedded into the concrete, the thimble 9 moves upwards along the slide rail 14 through the sliding beam 13 under the action of gravity of the whole shell device, so that the metal movable contact contacts with the metal stationary contact, a circuit loop is conducted, a signal lamp is on, reaction is carried out up and down, light and shade of an indicator lamp are alternated, the surface reaches the concrete position, cement pouring is stopped, the depth below the traction ropes and the heights of the shell and the thimble are read, and the accurate depth of the concrete pouring at the moment is judged.