CN108589703A - Bored concrete pile prevents superfilled device - Google Patents

Abstract

Prevent superfilled device the invention discloses a kind of bored concrete pile, it is superfilled when being used to prevent the casting concrete into fill orifice, including：Support plate, for annular and the horizontal surface for being co-axially located at fill orifice；Sliding tube；Conduit；Stereotype；Telescopic rod is coaxially disposed for the seal casinghousing shape and its of annular in the outside of the sliding tube, and the non-telescoping upper end of the telescopic rod is fixed on by bearing in the support plate, and the external stability of the upper end of the telescopic rod is arranged a gear；Multigroup round bar is provided on the lower surface of first annular plate described in a pair of of electric telescopic rod, the line at the center of every group of round bar passes through the center of first ring flat-plate, angle between the line at the center of two groups of round bar of arbitrary neighborhood is 30 °, and the round bar is corresponded with second round tube hole；Second ring flat-plate；Wherein, the gear drives its circular-rotation by rotating mechanism.The present invention has many advantages, such as that simple in structure, measurement is sharp, and can be applied to bored concrete pile prevents superfilled technical field.

Description

Anti-overfilling device for cast-in-place pile

technical field

The invention relates to the technical field of over-irrigation prevention. More specifically, the invention relates to an anti-overfilling device for cast-in-place piles.

Background technique

During the pouring process of cast-in-place piles, a laitance layer will appear on the upper part of the concrete due to various reasons, and the strength of the laitance layer solidified cannot meet the standard requirements of cast-in-place piles, and will affect the correct measurement of the elevation of cast-in-place piles. In the actual construction process, it is necessary to determine the actual height of the concrete in the following two ways: 1. Fix a heavy object with a measuring rope, put the heavy object into the pouring hole, and determine whether the heavy object produces pulling force on the human hand. Reach the elevation; Second, use the elevation rod to test whether the concrete has reached the elevation. The above two methods are only determined by the proficiency and experience of the engineering personnel, and it is easy to detect that the standard has been exceeded after the perfusion exceeds the standard.

Contents of the invention

It is an object of the present invention to solve at least the above-mentioned problems and to provide at least the advantages which will be described later.

Another object of the present invention is to provide an anti-overfilling device for cast-in-situ piles with simple structure and sensitive measurement.

In order to achieve these objects and other advantages according to the present invention, a kind of anti-overfilling device of cast-in-situ pile is provided, which is used to prevent overfilling when pouring concrete into the pouring hole, including:

a supporting plate, which is ring-shaped and arranged horizontally and coaxially directly above the perfusion hole;

The sliding tube is just sleeved inside the support plate, and the inner wall of the sliding tube is indented to form a pair of oppositely arranged long strip-shaped chutes with a square cross section; the outer wall of the sliding tube is indented to form A pair of opposite, square cross-sections and vertically penetrating elongated grooves; the length directions of the chute and the elongated grooves are parallel to the axial direction of the sliding tube;

A conduit, which is just sleeved inside the sliding tube, the lower end of the conduit protrudes from the lower end of the sliding tube, and a pair of fixed blocks corresponding to the chute are arranged on the outer wall of the conduit, and the The length is less than the length of the chute; the fixed block can slide up and down in the corresponding chute;

The lead plate is ring-shaped and its inner ring is fitted and fixed horizontally on the lowermost end of the sliding tube. The lead plate is provided with multiple sets of first round through holes connecting its upper and lower bottom surfaces, and each set of first round through holes The connecting line of the center of the hole passes through the center of the lead plate, and the angle between the connecting line of the center of any adjacent first round through hole is 30°; the diameter of the first round through hole is 1-2 cm;

A telescopic rod, which is in the shape of an annular sealed shell and coaxially arranged outside the sliding tube, the non-telescopic upper end of the telescopic rod is fixed on the support plate through a bearing, and the upper end of the telescopic rod A gear is fixedly sleeved on the outside; multiple groups of second round through holes corresponding to the first round through holes are arranged on the bottom plate of the telescopic rod;

A pair of electric telescopic rods, which are relatively vertically arranged in the annular space between the telescopic rods and the sliding tube, and the non-telescopic upper ends of the electric telescopic rods are fixed on the support plate;

The first ring plate is horizontally sleeved outside the sliding tube and located in the annular space between the telescopic rod and the sliding tube, and the upper surface of the first ring plate is fixedly connected to the lower ends of a pair of electric telescopic rods; The lower surface of the first annular plate is provided with multiple groups of round rods, the connecting line of the center of each group of round rods passes through the center of the first ring plate, and the connecting line of the centers of any adjacent two groups of round rods passes through the center of the first ring plate. The included angle between the lines is 30°, and the round rods are in one-to-one correspondence with the second round through holes;

The second ring plate is horizontally sleeved on the outside of the sliding tube and is located in the annular space between the telescopic rod and the sliding tube, and the second ring plate is attached to the bottom plate of the telescopic rod, so that The second ring plate is provided with multiple sets of third round through holes connecting its upper and lower bottom surfaces, which correspond to the second round through holes one by one; The grooves are matched with one-to-one corresponding sliders, and the second ring plate can slide up and down along the height direction of the sliding tube through its pair of sliders;

Wherein, the gear drives its circumference to rotate through a rotating mechanism.

Preferably, the telescopic rod includes at least three coaxial cylindrical sleeve rods, the three sleeve rods are the first rod, the second rod and the third rod, the first rod and the second rod The inner walls are sunken to form a pair of opposite vertical through grooves with a square cross-section, and baffles are provided on the top and bottom surfaces; a pair of sliding blocks are oppositely arranged at the lower ends of the outer walls of the second rod and the third rod , the sliding block cooperates with the vertical through groove; the pair of sliding blocks of the second rod can slide along the axial direction without falling off, and are arranged in a pair of vertical through grooves of the first rod, and the third A pair of sliding blocks of the rod can slide along its axis direction without falling off, and are arranged in a pair of vertical through grooves of the second rod;

The upper end surface of the first rod is provided with a top plate, and the lower end surface of the third rod is provided with the bottom plate.

Preferably, the outer wall of the sliding tube is provided with a level gauge along its height direction.

Preferably, the rotation mechanism includes:

a driving gear arranged horizontally and meshed with said gear;

The housing of the motor is vertically fixed on the lower surface of the support plate, and the output shaft of the motor is vertically passed through and fixed in the central through hole of the driving gear.

Preferably, a layer of wear-resistant rubber is attached to the outer wall and the inner wall of the first ring plate.

Preferably, a pair of limit blocks are oppositely provided on the outer wall of the moving tube, and the limit blocks correspond to and cooperate with the elongated groove.

The present invention at least includes the following beneficial effects:

The lead plate of the anti-overfilling device for cast-in-situ piles provided by the present invention will sink in the laitance due to excessive weight until it is offset against the upper end surface of the poured concrete. The diameter of the first round through hole is set to 1-2cm, which is lower than the diameter of the sand commonly used in concrete, so that the lead plate will not continue to sink when it encounters the concrete layer next time, but will resist The upper end surface of the poured concrete can be easily judged whether the pouring reaches the standard by the degree of upward movement of the moving pipe. When the cast-in-situ pile reaches the elevation, it can immediately stop pouring concrete into the pouring hole, so the present invention is a simple structure, Measure the anti-overfilling device of the sensitive cast-in-place pile.

Other advantages, objectives and features of the present invention will partly be embodied through the following descriptions, and partly will be understood by those skilled in the art through the study and practice of the present invention.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the enlarged view of A place of Fig. 1 of the present invention;

Fig. 3 is the A-A direction sectional view of Fig. 2 of the present invention;

Fig. 4 is the structural representation of the second ring plate of the present invention;

Fig. 5 is a schematic structural view of the bottom plate of the present invention;

Fig. 6 is a structural schematic diagram of the telescopic rod according to the present invention.

Explanation of reference signs:

1. Pouring hole, 2. Support plate, 3. Sliding tube, 4. Chute, 5. Strip groove, 6. Conduit, 7. Fixed block, 8. Lead plate, 9. Telescopic rod, 10. Gear , 11, electric telescopic rod, 12, first ring plate, 13, second ring plate, 14, third round through hole, 15, slide block, 16, first rod, 17, second rod, 18, third rod , 19, sliding block, 20, base plate, 21, round rod, 22, driving gear, 23, the second circular through hole.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

It should be noted that the experimental methods described in the following embodiments, unless otherwise specified, are conventional methods, and the reagents and materials, if not otherwise specified, can be obtained from commercial sources; in the description of the present invention, The terms "landscape", "portrait", "top", "bottom", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", The orientation or positional relationship indicated by "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have Certain orientations, constructed and operative in certain orientations, therefore are not to be construed as limitations on the invention.

As shown in Figures 1-6, the present invention provides an anti-overfilling device for cast-in-situ piles, which is used to prevent overfilling when pouring concrete into the pouring hole 1, including:

The support plate 2 is ring-shaped and coaxially arranged directly above the perfusion hole 1;

Sliding tube, which is just sleeved inside the support plate 2, the inner wall of the sliding tube is sunken to form a pair of oppositely arranged and rectangular chute 4 with a square cross section; the inner wall of the sliding tube Form a pair of opposite, cross-section is square and vertically through elongated grooves 5; the length direction of the chute 4 and the elongated groove 5 is parallel to the axial direction of the sliding tube;

Conduit 6, which is just sleeved inside the slide tube, the lower end of the guide tube 6 protrudes from the lower end of the slide tube, and a pair of guide tubes corresponding to the chute 4 are arranged on the outer wall of the guide tube 6. Fixed block 7, its length is less than the length of described chute 4; Said fixed block 7 can slide up and down and is arranged in corresponding chute 4;

The lead plate 8 is ring-shaped and its inner ring fits and is horizontally fixed on the lowermost end of the sliding tube. The lead plate 8 is provided with multiple sets of first circular through holes connecting its upper and lower bottom surfaces. The connecting line of the center of a round through hole passes through the center of the lead plate 8, and the included angle of the connecting line of the center of any adjacent first round through hole is 30°; the diameter of the first round through hole is 1-2 centimeter;

Telescopic rod 9, it is the shape of annular sealed shell and it is arranged on the outside of described sliding pipe coaxially, the non-telescopic upper end of described telescopic rod 9 is fixed on the described support plate 2 by bearing, and described telescopic rod A gear 10 is fixedly sheathed on the outside of the upper end of 9; the bottom plate 20 of the telescopic rod 9 is provided with multiple groups of second round through holes 23 corresponding to the first round through holes;

A pair of electric telescopic rods 11, which are relatively vertically arranged in the annular space between the telescopic rods and the sliding tube, and the non-telescopic upper ends of the electric telescopic rods 11 are fixed on the support plate 2;

The first ring plate 12 is horizontally sleeved on the outside of the sliding tube and is located in the annular space between the telescopic rod and the sliding tube. The upper surface of the first ring plate 12 is fixedly connected to a pair of electric telescopic rods 11 The lower end of the first annular plate is provided with multiple groups of round rods 21 on the lower surface of the first ring plate, and the connecting line of the center of each group of round rods 21 passes through the center of the first ring plate 12, and any adjacent two groups The included angle between the connecting lines of the centers of the round rods 21 is 30°, and the round rods 21 correspond to the second round through holes 23 one by one;

The second ring plate 13 is horizontally sleeved on the outside of the sliding tube and is located in the annular space between the telescopic rod and the sliding tube, and the second ring plate 13 is attached to the bottom plate 20 of the telescopic rod Above, the second ring plate 13 is provided with a plurality of sets of third round through holes 14 connecting its upper and lower bottom surfaces, which correspond to the second round through holes 23 one by one; the side walls of the second ring plate 13 are opposite A pair of sliders 15 matching with the elongated groove 5 and one-to-one correspondence are provided, and the second ring plate 13 can slide up and down along the height direction of the sliding tube through the pair of sliders 15;

Wherein, the gear 10 is driven to rotate in a circle by a rotating mechanism.

In this technical scheme, the principle of anti-overfilling: similar to the principle of heavy objects in conventional technology, the lead plate 8 will sink in the laitance due to excessive weight until it is offset against the upper end surface of the poured concrete, and the lead plate 8 8 During the sinking process, the laitance layer will emerge from the first round through hole on the lead plate 8. The diameter of the first round through hole is set to 1-2 cm, which is lower than the diameter of sand commonly used in concrete, so that the lead plate 8 When it encounters the concrete layer next time, it will not continue to sink, but will be against the upper end surface of the poured concrete. Concrete is continuously poured down from the conduit 6, and the upper surface of the concrete is constantly rising, which will drive the lead plate 8 against its upper end surface to rise continuously, thereby driving the conduit 6 connected with the lead plate 8 to rise regardless of rising, preventing the conduit 6 from being blocked. The specific way to prevent overfilling: Before perfusion, insert the catheter 6 deep into the perfusion hole 1 and touch the bottom of the perfusion hole 1, and mark the depth of the moving tube 3 extending into the perfusion hole 1 at this time, and according to the design of the perfusion hole 1 Elevation, mark the depth of the moving pipe 3 extending into the pouring hole 1 when the concrete pouring reaches the design elevation, and this depth becomes the first depth. During the pouring process, when the moving pipe 3 reaches the first depth, immediately stop pouring into the concrete concrete. In the process of marking the first depth, attention should be paid to deducting the height difference between the chute 4 and the fixed block 7 .

In the process of pouring, in order to prevent sundries from blocking the first round through hole on the lead plate 8, the rotating mechanism rotates to drive the telescopic rod to rotate, so that the second round through hole 23 on the bottom plate 20 of the telescopic rod and the second ring plate 13 The third round through hole 14 and the first round through hole on the lead plate 8 correspond one by one, and the electric telescopic rod 11 stretches so that the round rod 21 passes through the third round through hole 14, the second round through hole 23 and the first round through hole successively, and the After the blockage in the first round through hole is pushed out, retract the electric telescopic rod 11 and rotate the telescopic rod so that its bottom plate 20 cannot correspond to the third round through hole 14, thereby sealing the telescopic rod.

In another technical solution, the telescopic rod includes at least three coaxial cylindrical sleeve rods, the three sleeve rods are the first rod 16, the second rod 17 and the third rod 18, the The inner walls of the first rod 16 and the second rod 17 are all indented to form a pair of opposite cross-sections that are square vertical through grooves, and their top and bottom surfaces are provided with baffle plates; the second rod 17 and the third rod The lower end of the outer wall of 18 is provided with a pair of sliding blocks 19 oppositely, and the sliding blocks 19 are matched with the vertical through grooves; A pair of vertical through grooves in the first rod 16, a pair of sliding blocks of the third rod 18 can slide along its axis direction without falling off, and are provided in a pair of vertical through grooves in the second rod 17;

The upper end surface of the first rod 16 is provided with a top plate, and the lower end surface of the third rod 18 is provided with the bottom plate 20 .

In this technical solution, the bottom plate 20 of the telescopic rod is in contact with the upper end surface of the lead plate 8. When the lead plate 8 rises, the telescopic rod is pushed up. The structure is simple and cost-effective, and the telescopic rod can be stretched without power. Design the number of sleeves for the telescopic rods as required.

In another technical solution, the outer wall of the sliding tube is provided with a level gauge along its height direction.

In this kind of technical scheme, it is more convenient to use the level gauge than to mark each time.

In another technical solution, the rotating mechanism includes:

Drive gear 22, which is arranged horizontally and engages with said gear 10;

The housing of the motor is vertically fixed on the lower surface of the support plate 2 , and the output shaft of the motor is vertically passed through and fixed in the central through hole of the driving gear 22 .

In this technical solution, the motor starts to drive the driving gear 22 to rotate, the driving gear 22 rotates to drive the gears to rotate, and the transmission of the gear 10 is stable.

In another technical solution, a layer of wear-resistant rubber is attached to the outer wall and the inner wall of the first ring plate 12 .

In this technical solution, using wear-resistant rubber can improve the service life of the present invention.

In another technical solution, a pair of limit blocks are oppositely arranged on the outer wall of the moving tube 3 , and the limit blocks correspond to and cooperate with the elongated groove 5 .

In this technical solution, the limiting block limits the circumferential direction of the sliding tube, restricting the moving tube 3 to slide up and down in the height direction, but not to rotate in a circle.

Although the embodiment of the present invention has been disclosed as above, it is not limited to the use listed in the specification and implementation, it can be applied to various fields suitable for the present invention, and it can be easily understood by those skilled in the art Therefore, the invention is not limited to the specific details and examples shown and described herein without departing from the general concept defined by the claims and their equivalents.

Claims (6)

1. an anti-overfilling device of cast-in-situ pile, which is used to prevent overfilling when pouring concrete in the pouring hole, is characterized in that, comprising: a supporting plate, which is ring-shaped and arranged horizontally and coaxially directly above the perfusion hole; The sliding tube is just sleeved inside the support plate, and the inner wall of the sliding tube is indented to form a pair of oppositely arranged long strip-shaped chutes with a square cross section; the outer wall of the sliding tube is indented to form A pair of opposite, square cross-sections and vertically penetrating elongated grooves; the length directions of the chute and the elongated grooves are parallel to the axial direction of the sliding tube; A conduit, which is just sleeved inside the sliding tube, the lower end of the conduit protrudes from the lower end of the sliding tube, and a pair of fixed blocks corresponding to the chute are arranged on the outer wall of the conduit, and the The length is less than the length of the chute; the fixed block can slide up and down in the corresponding chute; The lead plate is ring-shaped and its inner ring is fitted and fixed horizontally on the lowermost end of the sliding tube. The lead plate is provided with multiple sets of first round through holes connecting its upper and lower bottom surfaces, and each set of first round through holes The connecting line of the center of the hole passes through the center of the lead plate, and the angle between the connecting line of the center of any adjacent first round through hole is 30°; the diameter of the first round through hole is 1-2 cm; A telescopic rod, which is in the shape of an annular sealed shell and coaxially arranged outside the sliding tube, the non-telescopic upper end of the telescopic rod is fixed on the support plate through a bearing, and the upper end of the telescopic rod A gear is fixedly sleeved on the outside; multiple groups of second round through holes corresponding to the first round through holes are arranged on the bottom plate of the telescopic rod; A pair of electric telescopic rods, which are relatively vertically arranged in the annular space between the telescopic rods and the sliding tube, and the non-telescopic upper ends of the electric telescopic rods are fixed on the support plate; The first ring plate is horizontally sleeved outside the sliding tube and located in the annular space between the telescopic rod and the sliding tube, and the upper surface of the first ring plate is fixedly connected to the lower ends of a pair of electric telescopic rods; The lower surface of the first annular plate is provided with multiple groups of round rods, the connecting line of the center of each group of round rods passes through the center of the first ring plate, and the connecting line of the centers of any adjacent two groups of round rods passes through the center of the first ring plate. The included angle between the lines is 30°, and the round rods are in one-to-one correspondence with the second round through holes; The second ring plate is horizontally sleeved on the outside of the sliding tube and is located in the annular space between the telescopic rod and the sliding tube, and the second ring plate is attached to the bottom plate of the telescopic rod, so that The second ring plate is provided with multiple sets of third round through holes connecting its upper and lower bottom surfaces, which correspond to the second round through holes one by one; The grooves are matched with one-to-one corresponding sliders, and the second ring plate can slide up and down along the height direction of the sliding tube through its pair of sliders; Wherein, the gear drives its circumference to rotate through a rotating mechanism. 2. The anti-overfilling device of cast-in-situ piles as claimed in claim 1, wherein the telescopic rod comprises at least three coaxial cylindrical sleeve rods, and the three joint sleeve rods are the first rod, The second rod and the third rod, the inner walls of the first rod and the second rod are indented to form a pair of opposite vertical through grooves with a square cross section, and baffle plates are provided on the top and bottom surfaces; The lower ends of the outer walls of the second rod and the third rod are oppositely provided with a pair of sliding blocks, and the sliding blocks are matched with the vertical through groove; the pair of sliding blocks of the second rod can slide along their axis directions respectively without falling off A pair of vertical through-slots arranged on the first rod, a pair of sliding blocks of the third rod can slide along its axis direction without falling off, and a pair of vertical through-slots arranged on the second rod; The upper end surface of the first rod is provided with a top plate, and the lower end surface of the third rod is provided with the bottom plate. 3. The anti-overfilling device for cast-in-situ piles as claimed in claim 1, characterized in that, the outer wall of the sliding pipe is provided with an elevation gauge along its height direction. 4. The anti-overfilling device of cast-in-situ piles as claimed in claim 1, wherein said rotating mechanism comprises: a driving gear arranged horizontally and meshed with said gear; The housing of the motor is vertically fixed on the lower surface of the support plate, and the output shaft of the motor is vertically passed through and fixed in the central through hole of the driving gear. 5. The anti-overfilling device for cast-in-situ piles according to claim 1, characterized in that, a layer of wear-resistant rubber is attached to the outer wall and the inner wall of the first ring plate. 6. The anti-overfilling device of cast-in-situ piles as claimed in claim 1, wherein a pair of limit blocks are relatively arranged on the outer wall of the moving tube, and the limit blocks correspond to the elongated grooves and Cooperate.