CN220162778U - Self-compaction concrete adjustable blanking pipe of subway precast slab - Google Patents

Abstract

The utility model discloses a self-compacting concrete adjustable blanking pipe of a subway precast slab, which comprises a pipe body detachably arranged at an outlet at the lower end of a movable blanking mechanism, wherein the lower end of the pipe body extends into a grouting hole of the precast slab along the vertical direction, a sealing ring is sleeved at the lower end of the pipe body, the sealing ring is tightly expanded on the wall of the grouting hole, and a scale mark is arranged at the lower part of the pipe body. The utility model avoids the problem of slurry leakage, can improve the potential energy of self-compacting concrete pouring according to the requirement, ensures sufficient pressure, and can intuitively determine the depth of the material pipe body extending into the grouting hole. The self-compacting concrete pouring method is suitable for the technical field of self-compacting concrete pouring of subway precast slabs.

Description

Self-compaction concrete adjustable blanking pipe of subway precast slab

Technical Field

The utility model belongs to the technical field of subway construction, and particularly relates to an adjustable blanking pipe for self-compacting concrete of a subway precast slab.

Background

Currently, in the operation of performing self-compacting concrete pouring of a subway precast slab, self-compacting concrete needs to be poured into a space at the bottom of the slab through grouting holes of the precast slab. However, in the pouring process, part of the self-compacting concrete can pass through grouting Kong Maochu, the phenomenon is slurry leakage, the slurry leakage not only can pollute the precast slab, but also can influence the pressure of the self-compacting concrete at the bottom of the slab, and the pressure deficiency can influence the overall pouring quality.

Disclosure of Invention

The utility model provides an adjustable discharging pipe for self-compacting concrete of a subway precast slab, which is used for avoiding the problem of slurry leakage, improving the potential energy of self-compacting concrete pouring according to the requirement, ensuring sufficient pressure and simultaneously intuitively determining the depth of a pipe body extending into a grouting hole.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a unloading pipe with adjustable subway prefabricated slab self-compaction concrete, includes demountable installation in the material pipe body of portable unloading mechanism lower extreme exit, the lower extreme of material pipe body stretches to the slip casting downthehole of prefabricated slab along vertical direction, is equipped with the sealing washer in material pipe body lower extreme cover, the sealing washer expand tightly on the pore wall in slip casting hole, in the lower part of material pipe body is provided with the scale mark.

Further, the scale mark comprises an anchor ear sleeved on the lower portion of the material pipe, a buckle is constructed on the anchor ear, the scale is connected with the anchor ear through the buckle, and the scale extends along the vertical direction.

Further, the scale marks comprise scale marks marked on the outer surface of the material pipe body along the axial direction of the material pipe body.

Further, the movable blanking mechanism comprises a blanking barrel and a blanking hopper which is constructed at the lower end of the blanking barrel, the caliber of the blanking hopper is gradually reduced downwards along the vertical direction, an adapter sleeve is detachably connected to the lower end of the blanking hopper, and the lower end of the adapter sleeve is detachably connected with the upper end of the material pipe body; four supporting rods are uniformly arranged in the circumferential direction of the blanking barrel, each supporting rod extends vertically, and hanging rings and wheel bodies are respectively arranged at the upper end and the lower end of each supporting rod.

Further, four connecting lugs are uniformly formed at the upper end of the blanking barrel along the circumferential direction of the blanking barrel, the upper end of each supporting rod penetrates through the connecting hole of each connecting lug, a threaded hole is formed in one side of each connecting lug, a locking bolt is in threaded connection with the threaded hole, and the end part of the locking bolt is propped against the supporting rod.

Further, the adapter sleeve comprises a first sleeve body, the upper end of the first sleeve body is detachably connected with the discharging hopper, a connecting seat A is constructed at the lower end of the first sleeve body, two clamping parts are symmetrically constructed on the connecting seat A, and clamping grooves are formed in each clamping part; a connecting seat B is constructed at the upper end of the material pipe body, and two clamping wings are symmetrically constructed on the connecting seat B; the connecting seat B and the connecting seat A are contacted with each other, and the clamping wings on the connecting seat A rotate along with the connecting seat A and are clamped in the corresponding clamping grooves.

Further, the adapter sleeve comprises a second sleeve body, the upper end of the second sleeve body is detachably connected with the discharging hopper, the lower end of the second sleeve body is connected with the mechanical iris mechanism, and the upper end of the material pipe body stretches into the mechanical iris mechanism and is tightly tied by the mechanical iris mechanism.

Further, a plurality of ratchet teeth are constructed on the outer wall of the operating ring of the mechanical iris mechanism, the ratchet teeth are arranged along the circumferential direction of the operating ring, a pawl is connected on the end face of the mechanical iris mechanism fixed with the second sleeve body, and the pawl is clamped between two adjacent ratchet teeth in a one-way.

Further, a fixing lug and a fixing pin are constructed on the end face of the mechanical iris mechanism, which is fixed with the second sleeve body, a vertical shaft rod is rotationally connected on the fixing lug, a pawl is fixedly connected on the vertical shaft rod, a torsion spring is sleeved on the vertical shaft rod, and two ends of the torsion spring are respectively fixedly connected with the vertical shaft rod and the fixing pin.

Further, the material pipe body is of a tubular structure made of acrylic materials.

Compared with the prior art, the utility model adopts the structure, and the technical progress is that: the utility model creates potential energy by adding the self-compacting concrete into the movable blanking mechanism, so that the pressure of the self-compacting concrete entering the grouting holes is sufficient; the self-compacting concrete in the movable blanking mechanism flows downwards through the material pipe body, and as the lower end of the material pipe body is inserted into the grouting hole and the downward insertion depth is judged according to the scale marks on the lower end of the material pipe body, the lower end of the material pipe body and the bottom of a space to be poured are ensured to have a preset height, the situation that the self-compacting concrete flows smoothly is prevented, and thus, the self-compacting concrete smoothly enters the pouring space through the material pipe body; in order to prevent self-compacting concrete with certain pressure from being poured Kong Maochu, a sealing ring is arranged at the lower part of the material pipe body, and seals a gap between the material pipe body and a pouring hole by the sealing ring, so that the self-compacting concrete is prevented from overflowing; in summary, the utility model avoids the problem of slurry leakage, can improve the potential energy of self-compacting concrete pouring according to the requirement, ensures sufficient pressure, and can intuitively determine the depth of the material pipe body extending into the grouting hole.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model.

In the drawings:

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a structure of a connection between a blanking barrel and a blanking hopper according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a first adapter sleeve according to an embodiment of the present utility model connected to a pipe body;

fig. 4 is a schematic structural diagram of the connection between the anchor ear and the scale according to the embodiment of the present utility model;

fig. 5 is a schematic structural diagram of the first adapter sleeve according to the embodiment of the present utility model after being detached from the material pipe body;

FIG. 6 is a schematic diagram of a second exemplary embodiment of a connection between an adapter sleeve and a mechanical iris mechanism;

FIG. 7 is a schematic view of the structure of FIG. 6 at another angle;

fig. 8 is a schematic structural view of a connection between a supporting rod and a wheel body and a hanging ring according to an embodiment of the present utility model.

Marking parts: the device comprises a 1-blanking barrel, a 2-blanking hopper, a 3-first connecting flange, a 4-connecting lug, a 5-connecting hole, a 6-threaded hole, a 7-first sleeve body, an 8-second connecting flange, a 9-connecting seat A, a 10-clamping part, an 11-clamping groove, a 12-material pipe body, a 13-connecting seat B, a 14-clamping wing, a 15-sealing ring, a 16-scale mark, a 17-hoop, a 18-buckle, a 19-scale, a 20-second sleeve body, a 21-third connecting flange, a 22-mechanical iris mechanism, a 23-operating ring, a 24-tightening block, a 25-tightening opening, 26-ratchet teeth, 27-pawls, 28-vertical shafts, 29-torsion springs, 30-fixing pins, 31-supporting rods, 32-wheel bodies, 33-hanging rings and 34-locking bolts.

Description of the embodiments

Preferred embodiments of the present utility model will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are presented for purposes of illustration and explanation only and are not intended to limit the present utility model.

The utility model discloses an adjustable discharging pipe for self-compacting concrete of a subway precast slab, which is shown in figures 1-8 and comprises a movable discharging mechanism and a pipe body 12. Wherein, the material pipe body 12 is detachably installed at the outlet of the lower end of the movable blanking mechanism, and the lower end of the material pipe body 12 extends into the grouting hole of the precast slab along the vertical direction. The lower end of the material pipe body 12 is sleeved with the sealing ring 15, the sealing ring 15 is tightly expanded on the wall of the grouting hole, and the lower part of the material pipe body 12 is provided with scale marks. The working principle and the advantages of the utility model are as follows: the utility model creates potential energy by adding the self-compacting concrete into the movable blanking mechanism, so that the pressure of the self-compacting concrete entering the grouting holes is sufficient; the self-compacting concrete in the movable blanking mechanism flows downwards through the material pipe body 12, and as the lower end of the material pipe body 12 is inserted into the grouting holes and the downward insertion depth is judged according to scale marks on the lower end of the material pipe body 12, the lower end of the material pipe body 12 and the bottom of a space to be poured are ensured to have a preset height, the situation that the self-compacting concrete flows smoothly is prevented, and thus, the self-compacting concrete smoothly enters the pouring space through the material pipe body 12; in order to prevent self-compacting concrete with certain pressure from being poured Kong Maochu, a sealing ring 15 is arranged at the lower part of the material pipe body 12, and the sealing ring 15 seals a gap between the material pipe body 12 and a pouring hole, so that the self-compacting concrete is prevented from overflowing; in summary, the utility model avoids the problem of slurry leakage, can improve the potential energy of self-compacting concrete pouring according to the requirement, ensures sufficient pressure, and can intuitively determine the depth of the material pipe body 12 extending into the grouting holes.

As a preferred embodiment of the utility model, scale markings are divided into two ways. First, as shown in fig. 3-4, the scale mark comprises a hoop 17 and a scale 19, the hoop 17 is sleeved and fastened at the lower position of the material pipe, a buckle 18 is constructed on the hoop 17, the scale 19 is inserted into the buckle 18, the scale 19 is connected with the hoop 17, and the scale 19 extends along the vertical direction. Second, as shown in fig. 5, the scale markings include scale markings 16, the scale markings 16 being marked on the outer surface of the tube body 12 in the axial direction of the tube body 12.

As a preferred embodiment of the present utility model, as shown in fig. 1-2 and 8, the movable blanking mechanism includes a blanking cylinder 1 and a blanking hopper 2. The discharging hopper 2 is configured at the lower end of the discharging barrel 1, the caliber of the discharging hopper 2 is tapered downwards along the vertical direction, an adapter sleeve is detachably connected to the lower end of the discharging hopper 2, and the lower end of the adapter sleeve is detachably connected with the upper end of the material pipe body 12. In this embodiment, four support rods 31 are uniformly arranged in the circumferential direction of the blanking barrel 1, each support rod 31 extends vertically, and the support rods 31 are used for supporting the blanking barrel 1 and the blanking hopper 2 at a certain height from the precast slab so as to create a preset potential energy for self-compacting concrete. And rings 33 and wheel bodies 32 are respectively arranged at the upper end and the lower end of the supporting rod 31, and the rings 33 and the wheel bodies 32 are convenient for lifting the movable blanking mechanism and moving on the precast slabs. In order to adjust the heights of the blanking barrel 1 and the blanking hopper 2 so as to change the pressing pressure of the self-compacting concrete, the embodiment adopts the measures that four connecting lugs 4 are constructed at the upper end of the blanking barrel 1, the four connecting lugs 4 are uniformly arranged along the circumferential direction of the blanking barrel 1, each connecting lug 4 is provided with a connecting hole 5, and the upper end of each supporting rod 31 penetrates through the connecting hole 5 of the corresponding connecting lug 4. In this embodiment, a threaded hole 6 is formed on one side of the connecting lug 4, the threaded hole 6 is communicated with the connecting hole 5, a locking bolt 34 is in threaded connection with the threaded hole 6, and the end of the locking bolt 34 is abutted against the supporting rod 31. When the heights of the blanking cylinder 1 and the blanking hopper 2 are required to be adjusted, the locking bolts 34 are unscrewed, so that the blanking cylinder 1 and the blanking hopper 2 are lifted together, and after the height adjustment is finished, the locking bolts 34 are screwed.

As a preferred embodiment of the present utility model, the adaptor sleeve has two structures, and a first connection flange 3 is formed at the lower end of the discharging hopper 2 for respectively connecting the two adaptor sleeves. First, as shown in fig. 1, 3 and 5, the adapter sleeve comprises a first sleeve body 7, a second connecting flange 8 is constructed at the upper end of the first sleeve body 7, and the second connecting flange 8 is detachably connected with the first connecting flange 3 of the discharging hopper 2. In this embodiment, a connection seat A9 is configured at the lower end of the first sleeve body 7, two clamping portions 10 are symmetrically configured on the connection seat A9, and each clamping portion 10 is provided with a clamping groove 11. A connecting seat B13 is formed at the upper end of the pipe body 12, and two engaging wings 14 are symmetrically formed on the connecting seat B13. When the first sleeve body 7 and the material pipe body 12 are assembled, the operation connecting seat B13 and the connecting seat A9 are in contact with each other, and then the material pipe body 12 is rotated, so that the material pipe body 12 carries the clamping wings 14 to rotate a certain angle, and further the two clamping wings 14 are respectively clamped in the two clamping grooves 11. Like this for the material pipe is convenient with the connection of first cover body 7, and the dismouting is convenient, in order to avoid overflowing from compact concrete by the junction moreover, can install annular cushion on connecting seat A9 or connecting seat B13's terminal surface, connecting seat A9 and connecting seat B13 contact each other and oppress this annular cushion. Second, as shown in fig. 6 to 7, the adapter sleeve includes a second sleeve body 20, and a third connection flange 21 is formed at an upper end of the second sleeve body 20, and the third connection flange 21 is detachably connected with the first connection flange 3 of the discharging hopper 2. The lower end of the second sleeve body 20 is connected with the mechanical iris mechanism 22, the mechanical iris mechanism 22 is provided with a plurality of tightening blocks 24, the tightening blocks 24 are uniformly arranged along the circumferential direction of the second sleeve body 20, one end of each tightening block 24 gathered with each other encloses a tightening opening 25, and a worker rotates an operating ring 23 of the mechanical iris mechanism 22 by a certain angle to enable the operating ring 23 to drive the tightening blocks 24 to move, so that the tightening opening 25 is enlarged or reduced in the moving process. Thus, the upper end of the tube body 12 extends into the tightening opening 25 of the mechanical iris mechanism 22, and the operating ring 23 is rotated by a certain angle, so that the tightening opening 25 is contracted and tightened. It can be seen that the mechanical iris mechanism 22 is used in the present embodiment, which has the following advantages: the disassembly and assembly of the material pipe body 12 can be rapidly performed, and the connection of the material pipe bodies 12 with different pipe diameters can be realized. In order to improve the sealing performance, a rubber ring is sleeved outside the tightened part of the material pipe body 12. In order to avoid loosening or separating the material pipe body 12 from the mechanical iris mechanism 22 due to rotation of the operating ring 23 during tightening, the outer wall of the operating ring 23 of the mechanical iris mechanism 22 is provided with a plurality of ratchet teeth 26, the ratchet teeth 26 are arranged along the circumferential direction of the operating ring 23, a pawl 27 is connected to the end surface of the mechanical iris mechanism 22 fixed with the second sleeve body 20, and the pawl 27 is unidirectionally clamped between two adjacent ratchet teeth 26. In this embodiment, a fixing lug and a fixing pin 30 are configured on the end surface where the mechanical iris mechanism 22 and the second sleeve body 20 are fixed, a vertical shaft lever 28 is rotationally connected on the fixing lug, a pawl 27 is fixedly connected on the vertical shaft lever 28, a torsion spring 29 is sleeved on the vertical shaft lever 28, and two ends of the torsion spring 29 are respectively fixedly connected with the vertical shaft lever 28 and the fixing pin 30.

As a preferred embodiment of the present utility model, the pipe body 12 is a tubular structure of acrylic material in order to facilitate the flow of self-compacting concrete through the pipe body 12.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the scope of the claims of the present utility model.

Claims (10)

1. The utility model provides a unloading pipe with adjustable subway prefabricated slab self-compaction concrete which characterized in that: including demountable installation in the material pipe body of portable unloading mechanism lower extreme exit, the lower extreme of material pipe body stretches to the slip casting downthehole of prefabricated plate along vertical direction, is equipped with the sealing washer in material pipe body lower extreme cover, the sealing washer expand tightly on the pore wall in slip casting hole, in the lower part of material pipe body is provided with the scale mark.

2. The self-compacting concrete adjustable blanking pipe for subway precast slabs according to claim 1, characterized in that: the scale mark comprises a hoop which is sleeved on the lower part of the material pipe, a buckle is constructed on the hoop, the scale is connected with the hoop through the buckle, and the scale extends along the vertical direction.

3. The self-compacting concrete adjustable blanking pipe for subway precast slabs according to claim 1, characterized in that: the scale marks comprise scale marks marked on the outer surface of the material pipe body along the axial direction of the material pipe body.

4. The self-compacting concrete adjustable blanking pipe for subway precast slabs according to claim 1, characterized in that: the movable blanking mechanism comprises a blanking barrel and a blanking hopper which is constructed at the lower end of the blanking barrel, wherein the caliber of the blanking hopper is gradually reduced downwards along the vertical direction, the lower end of the blanking hopper is detachably connected with an adapter sleeve, and the lower end of the adapter sleeve is detachably connected with the upper end of the material pipe body; four supporting rods are uniformly arranged in the circumferential direction of the blanking barrel, each supporting rod extends vertically, and hanging rings and wheel bodies are respectively arranged at the upper end and the lower end of each supporting rod.

5. The self-compacting concrete adjustable blanking pipe for subway precast slabs of claim 4, wherein: four connecting lugs are uniformly constructed at the upper end of the blanking barrel along the circumferential direction of the blanking barrel, the upper end of each supporting rod penetrates through the connecting hole of the connecting lug, a threaded hole is formed in one side of the connecting lug, a locking bolt is in threaded connection with the threaded hole, and the end part of the locking bolt is propped against the supporting rod.

6. The self-compacting concrete adjustable blanking pipe for subway precast slabs of claim 4, wherein: the adapter sleeve comprises a first sleeve body, wherein the upper end of the first sleeve body is detachably connected with the discharging hopper, a connecting seat A is constructed at the lower end of the first sleeve body, two clamping parts are symmetrically constructed on the connecting seat A, and clamping grooves are formed in each clamping part; a connecting seat B is constructed at the upper end of the material pipe body, and two clamping wings are symmetrically constructed on the connecting seat B; the connecting seat B and the connecting seat A are contacted with each other, and the clamping wings on the connecting seat A rotate along with the connecting seat A and are clamped in the corresponding clamping grooves.

7. The self-compacting concrete adjustable blanking pipe for subway precast slabs of claim 4, wherein: the adapter sleeve comprises a second sleeve body, the upper end of the second sleeve body is detachably connected with the discharging hopper, the lower end of the second sleeve body is connected with the mechanical iris mechanism, and the upper end of the material pipe body stretches into the mechanical iris mechanism and is tightly tied by the mechanical iris mechanism.

8. The self-compacting concrete adjustable blanking pipe for subway precast slabs of claim 7, wherein: the outer wall of the operating ring of the mechanical iris mechanism is provided with a plurality of ratchet teeth which are arranged along the circumferential direction of the operating ring, the end surface of the mechanical iris mechanism fixed with the second sleeve body is connected with a pawl, and the pawl is clamped between two adjacent ratchet teeth in a one-way.

9. The self-compacting concrete adjustable blanking pipe for subway precast slabs of claim 8, wherein: the fixed ear and the fixed pin are constructed on the fixed end face of the mechanical iris mechanism and the second sleeve body, the vertical shaft rod is rotationally connected on the fixed ear, the pawl is fixedly connected on the vertical shaft rod, the torsion spring is sleeved on the vertical shaft rod, and two ends of the torsion spring are respectively fixedly connected with the vertical shaft rod and the fixed pin.

10. The self-compacting concrete adjustable blanking pipe for subway precast slabs according to claim 1, characterized in that: the material pipe body is of a tubular structure made of acrylic materials.