Reverse construction method well concrete pouring device

Abstract

The invention relates to a well concrete pouring device adopting a reverse construction method. The well concrete pouring device comprises two rails arranged in the X direction, a plurality of sliding assemblies, two cross beams, a hopper and a material distribution hose. Two rails are arranged in the X direction and fixed to the first section of L-shaped hanging wall of the reverse building method well, cross beams are arranged in the Y direction, the two ends of the cross beams are connected to sliding assemblies on the two rails correspondingly, and a containing space is formed between the two cross beams. The hopper is installed in the containing space, so that the hopper can move in the Y direction and indirectly move in the X direction, and the concrete can be easily conveyed to a designated position in a reverse construction method well by being matched with the material distribution hose which can be bent to change the position and angle of discharged concrete.

Description

Technical Field

[0001] This application belongs to the field of building construction technology, and in particular relates to a reverse construction method well concrete pouring device. Background Technology

[0002] "Reverse construction shaft" is an underground vertical shaft structure constructed in a reverse, layered manner from bottom to top. It is mainly used in scenarios such as working / receiving shafts for pipe jacking projects, entrances and exits of underground passages, or deep foundation pit support. Its core principle is to first construct the top structure, and then excavate downwards layer by layer while simultaneously pouring the shaft wall support to form a closed working space.

[0003] In existing technologies, concrete pump trucks or concrete mixer trucks are commonly used for reverse construction of wells. However, the concrete pump truck setup in the pumping process has overhead space limitations. If the space above the buried structure is insufficient, the pouring operation becomes difficult and the construction efficiency is low. Furthermore, reverse construction structures require smaller single-pour volumes, resulting in a higher proportion of pumping costs per pour. The flow rate control requirements are also high, and there is a risk of excessive material overflowing the formwork on one side, causing additional concrete loss. Therefore, the pumping process is costly.

[0004] In the concrete mixer truck self-unloading pouring process, there are distance restrictions for pouring by the mixer truck. If the structure size is too large and the chute length is insufficient, changing the pouring surface not only requires adjusting the position of the mixer truck, which is prone to collision with facilities such as barriers, but also requires a large amount of manual labor to add and move the chute, resulting in low construction efficiency, more workers in the pit, and higher safety risks. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a concrete pouring device for reverse construction wells in order to facilitate concrete pouring construction in reverse construction wells, reduce the number of workers in the working wells, and reduce safety risks.

[0006] The technical solution adopted by this invention to solve its technical problem is: A reverse-construction well concrete pouring device includes: Two tracks are arranged along the X direction, and the tracks are configured to be fixed to the top surface of the inverted retaining wall of the first segment of the reverse construction well. Several sliding components are connected to the track for sliding along the track; At least two crossbeams are arranged along the Y direction, which is perpendicular to the X direction, and the two ends of the crossbeams are respectively connected to the sliding components on the two tracks; a placement space is formed between the two crossbeams; A hopper is installed in the placement space, and two crossbeams are connected to both sides of the hopper along the X direction. The hopper can slide along the two crossbeams. A flexible concrete delivery hose is connected to the outlet of the hopper. The flexible concrete delivery hose can be bent to change the position and angle at which the concrete is discharged.

[0007] Preferably, in the reverse-construction well concrete pouring device of the present invention, the sliding component includes a support plate, a rolling component and a fixing plate. The fixing plate and the rolling component are respectively connected to both sides of the support plate. The rolling component is installed on the track for rolling along the track. An openable or closed clamping area is formed between the fixing plate and the support plate. The clamping area is used for fixing the end of the crossbeam.

[0008] Preferably, in the reverse-method well concrete pouring device of the present invention, the sliding component further includes a pin, and both the support plate and the fixing plate have insertion holes that cooperate with the pin, wherein the pin fixes the support plate and the fixing plate when inserted into the insertion hole.

[0009] Preferably, in the reverse-process well concrete pouring device of the present invention, a traction rope is fixed on the hopper or the crossbeam for the operator to pull to move the hopper.

[0010] Preferably, in the reverse-construction well concrete pouring device of the present invention, the hopper comprises: The main body of the hopper is a hollow inverted cone shape, used for feeding concrete; A discharge pipe is connected to the bottom of the hopper body, and the discharge port is formed in the discharge pipe; A sliding bracket is fixed on both sides of the hopper body to support the hopper on the crossbeam so that the hopper can slide along the crossbeam.

[0011] Preferably, in the reverse-construction well concrete pouring device of the present invention, the sliding support includes: The main support body is fixed to the edges of the hopper on both sides in the Y direction; Hook-shaped portions are located at both ends of the main body of the support, and the hook-shaped portions can be hooked on the crossbeam and slide along it.

[0012] Preferably, in the reverse-method well concrete pouring device of the present invention, the material placing hose is detachably sleeved and connected to the outer wall of the discharge pipe.

[0013] Preferably, the reverse-concrete pouring device of the present invention further includes a hose limiting component, which is connected to the outer wall of the hopper, and the concrete placing hose is partially inserted through the hose limiting component. When the hose limiting component is adjusted, it can change the position and angle of the concrete discharged from the concrete placing hose.

[0014] Preferably, in the reverse-method well concrete pouring device of the present invention, the hose limiting component includes: A chute is fixed around the outer wall of the hopper; The movable rod has one end connected to the slide groove and can slide along the slide groove, and the other end is used for the fabric hose to pass through.

[0015] Preferably, in the reverse-construction well concrete pouring device of the present invention, the movable rod includes: Rod body; The ball head is fixed to one end of the rod and is located in the groove; A collar is fixed to the other end of the rod for the hose limiting assembly to pass through.

[0016] The beneficial effects of this invention are as follows: This invention arranges two tracks along the X-direction and fixes them to the first L-shaped wall of the reverse-construction well. A crossbeam is arranged along the Y-direction, with its two ends connected to sliding components on the two tracks, forming a placement space between the two crossbeams. By installing the hopper within this placement space, the hopper can move along the Y-direction and indirectly, also along the X-direction. Combined with a flexible delivery hose that can bend to change the position and angle of the discharged concrete, concrete can be easily transported to the designated location within the reverse-construction well. Attached Figure Description

[0017] The technical solution of this application will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic diagram of the arrangement of the concrete pouring device for the reverse construction method well according to an embodiment of this application; Figure 2 This is a schematic diagram of the reverse construction method well concrete pouring device according to an embodiment of this application; Figure 3 This is a schematic diagram of the sliding component structure of Embodiment 1 of this application; Figure 4 This is a schematic diagram of the rolling component structure of the sliding component in Embodiment 1 of this application; Figure 5 This is a schematic diagram of the hopper structure of Embodiment 1 of this application; Figure 6 This is a schematic diagram of the track structure of Embodiment 1 of this application; Figure 7 This is a schematic diagram of the connection structure between the hopper, the hose limiting assembly, and the fabric hose in Embodiment 2 of this application; Figure 8 This is a schematic diagram of the movable rod structure of the hose limiting assembly in Embodiment 2 of this application.

[0019] The attached figures are labeled as follows: 100. Reverse method well; 1. Track; 2. Sliding assembly; 21. Support plate; 22. Rolling assembly; 23. Fixing plate; 24. Clamping area; 25. Pin; 26. Hinge; 221. Pulley bearing plate; 222. Roller; 3. Crossbeam; 31. Placement space; 4. Hopper; 41. Hopper body; 42. Discharge pipe; 43. Sliding support; 431. Support body; 432. Hook-shaped part; 5. Fabric hose; 6. Hose limiting assembly; 61. Slide groove; 62. Movable rod; 621. Rod body; 622. Ball head; 623. Ring. Detailed Implementation

[0020] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0021] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

[0023] The technical solution of this application will now be described in detail with reference to the accompanying drawings and embodiments. Example 1

[0024] This embodiment provides a reverse-construction well concrete pouring device, such as... Figure 1 , Figure 2As shown, it includes: two tracks 1 arranged along the X direction, several sliding components 2, two crossbeams 3, a hopper 4, and a material distribution hose 5.

[0025] Track 1 is configured to be fixed to the top surface of the inverted retaining wall of the first segment of the reverse construction well; several sliding components 2 are connected to track 1 for sliding along track 1; crossbeams 3 are arranged along the Y direction, which is perpendicular to the X direction, and the two ends of the crossbeams 3 are respectively connected to the sliding components 2 on the two tracks 1; a placement space 31 is formed between the two crossbeams 3; hopper 4 is installed in the placement space 31, and the two sides of hopper 4 along the X direction are respectively connected to the two crossbeams 3, and the friction between the contact surface of hopper 4 and crossbeam 3 is small enough to allow it to slide along the two crossbeams 3; a concrete placing hose 5 is connected to the discharge port of hopper 4, and the concrete placing hose 5 can be bent to change the position and angle of the discharged concrete.

[0026] The reverse-construction well concrete pouring device of this embodiment has two tracks 1 arranged along the X direction, which are fixed to the first L-shaped wall of the reverse-construction well 100. A crossbeam 3 is arranged along the Y direction, with its two ends connected to sliding components 2 on the two tracks 1 respectively. A placement space 31 is formed between the two crossbeams 3. By installing the hopper 4 in the placement space 31, the hopper 4 can move along the Y direction and indirectly also along the X direction. Combined with a flexible delivery hose 5 that can be bent to change the position and angle of the discharged concrete, concrete can be easily transported from the reverse-construction well 100 to the designated location.

[0027] In this embodiment, the reverse-construction well concrete pouring device unloads concrete into hopper 4 via a chute on the concrete mixer truck. Hopper 4 can move directly or indirectly in four directions (front, back, left, and right), allowing the concrete to be closer to the side formwork of each segment in these four directions. This overcomes the spatial limitations of traditional pump truck pouring and the operational shortcomings of repeatedly adjusting the vehicle and chute positions required for mixer truck chute pouring. It also reduces the number of workers required to work in the foundation pit, improves pouring efficiency, and avoids the risk of increased material costs associated with using pumping technology.

[0028] The reverse-concrete pouring device of this embodiment requires less movement of the concrete mixer truck during the pouring process. Compared with the traditional concrete mixer truck pouring process, it reduces the probability of vehicles colliding with facilities such as fences and railings, reduces the number of workers in the pit, makes the material placement operation more convenient, and improves the overall construction efficiency.

[0029] Understandably, the number of crossbeams 3 in other embodiments is not limited to two; three, four, or more can be set according to actual needs.

[0030] In an optional embodiment, a traction rope is also fixed on the hopper 4 or the crossbeam, and the operator moves the hopper 4 by pulling the traction rope, which makes the operation more convenient and can improve construction efficiency.

[0031] In an alternative embodiment, such as Figure 3 As shown, the sliding assembly 2 includes a support plate 21, a rolling assembly 22, and a fixing plate 23. The fixing plate 23 and the rolling assembly 22 are respectively connected to both sides of the support plate 21. The rolling assembly 22 is mounted on the track 1 for rolling along the track 1. A clamping area 24 that can be opened or closed is formed between the fixing plate 23 and the support plate 21. The clamping area 24 is used for fixing the end of the crossbeam 3. In this embodiment, the assembly structure of the support plate 21 and the rolling assembly 22 is simple. The fixing plate 23 can easily and quickly fix the crossbeam 3, which helps to reduce the difficulty and cost of component manufacturing and the difficulty of later maintenance.

[0032] In an alternative embodiment, such as Figure 3 As shown, the sliding assembly 2 also includes a pin 25. Both the support plate 21 and the fixing piece 23 have insertion holes that mate with the pin 25. When the pin 25 is inserted into the insertion hole, it fixes the support plate 21 and the fixing piece 23. In this embodiment, by locking the fixing piece 23 with the pin 25, the fixing piece 23 can be quickly locked or released, allowing for quick assembly and disassembly of the crossbeam 3, facilitating on-site installation and removal by operators.

[0033] In an alternative embodiment, such as Figure 4 As shown, the rolling assembly 22 includes a pulley axle plate 221 and a roller 222. The pulley axle plate 221 is vertically fixed on the support plate 21 and extends along the X direction. The roller 222 is rotatably connected to the pulley axle plate 221 and is used to roll along the surface of the track 1. In this embodiment, the rolling assembly 22 is constructed by assembling a simple pulley axle plate 221 and roller 222, which helps to reduce the difficulty and cost of component manufacturing and the difficulty of subsequent maintenance.

[0034] In an alternative embodiment, such as Figure 5 As shown, the hopper 4 includes: a hopper body 41, a discharge pipe 42, and a sliding bracket 43. The hopper body 41 is a hollow inverted cone shape for discharging concrete; the discharge pipe 42 is connected to the bottom of the hopper body 41, and the discharge port is formed in the discharge pipe 42; the sliding bracket 43 is fixed on both sides of the hopper body 41 for supporting it on the crossbeam 3 so that the hopper 4 can slide along the crossbeam 3. In this embodiment, the hopper 4, through the hopper body 41, conveniently accommodates concrete; the discharge pipe 42 discharges concrete and is conveniently connected to the concrete distribution hose 5; and the sliding bracket 43 facilitates placement on the crossbeam 3 and allows for sliding.

[0035] In an alternative embodiment, such as Figure 5As shown, the sliding support 43 includes a support body 431 and hook-shaped portions 432 located at both ends of the support body 431. The support body 431 is fixed to the edges of the hopper 4 on both sides in the Y direction. The hook-shaped portions 432 can be hung on the crossbeam 3 and can slide along it. In this embodiment, a simple rod with hook-shaped portions 432 bent at both ends is used as the sliding support 43. Commonly used materials in construction can be directly modified to obtain the support, making it easy to implement.

[0036] In an alternative embodiment, such as Figure 5 As shown, the fabric hose 5 is detachably sleeved and connected to the outer wall of the discharge pipe 42, which facilitates the disassembly and assembly of the fabric hose 5, so that the operator can easily remove it when the fabric hose 5 is damaged or blocked.

[0037] This embodiment provides a method for arranging a concrete pouring device for a reverse-construction well, including the following steps: 1. After the completion of the first L-shaped hanging wall section of the reverse construction well 100, track 1 is laid out, as follows: Figure 6 As shown, the track can be made of square galvanized steel. The track 1 is 50mm wide, 2mm thick, and has a top opening size of 14mm. Angle iron is welded to the outside of the track 1 and fixed to the L-shaped wall with bolts.

[0038] 2. After the track 1 is installed, install the sliding assembly 2. The rollers can be set with a wheel diameter of 30mm and a wheel track of 42mm; the pulley axle plate 221 can be set as a 57*110*10mm steel plate; the support plate 21 can be set as a 40*10mm steel plate, with a hinge 26 connected to one side and a pre-drilled pin hole on the other side; the hinge 26 can be set as 1.5 inches, with the lower hinge connected to the support plate 21 and the upper hinge connected to the fixing plate 23; the thickness of the fixing plate 23 can be set as 2mm, and its shape is based on the 110mm diameter crossbeam 3 (which can be made of steel pipe), with a hinge 26 connected to one side and a pre-drilled pin hole on the other side. The fixing plate 23 can be designed with a partial arc section so that the upper arc groove can fasten 1 / 2 of the cross section of the steel pipe, increasing the fixing force.

[0039] 3. The two ends of the crossbeam 3 are respectively placed into the sliding components 2 on both sides of the working well, and the ends of the crossbeam 3 are fixed using the fixing plate 23.

[0040] 4. After the crossbeam 3 is installed, move it to the center of the working well and install the hopper 4 from one side. Manually pull it to the center of the working well using a traction rope. The hopper 4 can be configured with an upper opening of 1450*1450mm, a lower diameter of 110mm, a height of 550mm, and a steel plate thickness of 2mm. Sliding brackets 43 are fixed to both sides of the hopper body 41. The sliding brackets 43 can be welded from 25mm round steel, with the ends of the round steel bent downwards to form hook-shaped parts 432 that fasten to the crossbeam 3. The discharge pipe 42 is connected to the material distribution hose 5.

[0041] 5. The concrete delivery hose 5 can be adjusted at various angles to guide the concrete delivery direction. In conjunction with the movement of the hopper 4, it can achieve the comprehensive concrete delivery function of each section and part of the working well.

[0042] The following precautions should be taken when arranging the concrete pouring device for the reverse construction method well in this embodiment: During the application of the entire device, since it has been pre-designed and manufactured, there are certain requirements for the flatness of the top surface of the first L-shaped hanging wall of the reverse construction well 100. In some areas, steel pads can be added to ensure the verticality and horizontality of the double-sided track 1 installation. The track 1 can be fixed by driving screws from the bottom of the track groove into the top of the first section of concrete for anchoring, or by adding angle steel on both sides and welding it, and then anchoring the angle steel to the top of the first section of concrete with screws.

[0043] During the application of the entire device, when the hopper 4 moves in the extension direction (X direction) of the track 1, it is necessary to manually assist the traction beam 3 and tighten the traction ropes on both sides at the same time, otherwise the wheels may jam. When the hopper 4 moves in the vertical direction (Y direction) of the track, it is necessary to adjust it to a suitable distance by manually dragging it with the traction ropes on both sides, taking into account the unloading point of the concrete mixer truck. Before the device of this invention is installed and used, the track 1 and the crossbeam 3 should be coated with lubricating oil to facilitate smooth adjustment. Since the track 1 is installed once and used multiple times, it needs to be cleaned and covered in time after the concrete is poured, and protected during the foundation pit operation. Example 2

[0044] This embodiment provides a concrete pouring device for a reverse-construction well, which differs from the reverse-construction well concrete pouring device in Embodiment 1 in that it also includes a hose limiting component 6, such as... Figure 7 As shown, the hose limiting component 6 is connected to the outer wall of the hopper 4, and the concrete placing hose 5 is partially inserted through the hose limiting component 6. When the hose limiting component 6 is adjusted, the position and angle of the concrete being discharged from the concrete placing hose 5 can be changed.

[0045] In this embodiment, the setting of the hose limiting component 6 allows the operator to easily adjust the orientation of the fabric hose 5, provides a certain limiting effect on the fabric hose 5, and reduces the shaking of the fabric hose 5 during use.

[0046] In an alternative embodiment, such as Figure 7 As shown, the hose limiting assembly 6 includes a sliding groove 61 and a movable rod 62. The sliding groove 61 is fixed around the outer wall of the hopper 4; one end of the movable rod 62 is connected to the sliding groove 61 and can slide along the sliding groove 61, while the other end is used for the soft fabric hose 5 to pass through. In this embodiment, by fixing the sliding groove 61 around the outer wall of the hopper 4, it is convenient to suspend one end of the movable rod 62 and to move the movable rod 62 in various directions (front, back, left, right) of the hopper 4, so that the fabric hose 5 can be adjusted to any orientation.

[0047] In an alternative embodiment, such as Figure 7 , Figure 8 As shown, the movable rod 62 includes a rod body 621, a ball head 622, and a collar 623. The ball head 622 is fixed to one end of the rod body 621 and is located within a groove 61; the collar 623 is fixed to the other end of the rod body 621 for the flexible hose 5 to pass through. In this embodiment, by providing the ball head 622 at one end of the rod body 621, the ball head 622 can move within the groove 61, and since the diameter of the ball head 622 is larger than the opening of the groove 61, the ball head 622 will not detach from the groove 61, ensuring that the upper end of the movable rod 62 is always connected to the groove 61. The collar 623 has a simple structure, can be directly manufactured from commonly used construction materials, and can effectively limit the movement of the flexible hose 5, making the insertion of the flexible hose 5 simple.

[0048] Based on the above-described preferred embodiments according to this application, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this application. The technical scope of this application is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A reverse-construction well concrete pouring device, characterized in that, include: Two tracks (1) are arranged along the X direction, and the tracks (1) are configured to be fixed to the top surface of the inverted retaining wall of the first segment of the reverse construction well; Several sliding components (2) are connected to the track (1) for sliding along the track (1); At least two crossbeams (3) are arranged along the Y direction, which is perpendicular to the X direction. The two ends of the crossbeams (3) are respectively connected to the sliding components (2) on the two tracks (1); a placement space (31) is formed between the two crossbeams (3). The hopper (4) is installed in the placement space (31). The hopper (4) is connected to two beams (3) on both sides along the X direction. The hopper (4) can slide along the two beams (3). A flexible cloth (5) is connected to the outlet of the hopper (4). The flexible cloth (5) can be bent to change the position and angle of the discharged concrete.

2. The reverse-construction well concrete pouring device according to claim 1, characterized in that, The sliding assembly (2) includes a support plate (21), a rolling assembly (22) and a fixing plate (23). The fixing plate (23) and the rolling assembly (22) are respectively connected to both sides of the support plate (21). The rolling assembly (22) is installed on the track (1) and is used to roll along the track (1). The fixing plate (23) and the support plate (21) form an openable or closed clamping area (24). The clamping area (24) is used for the end of the crossbeam (3) to be fixed.

3. The reverse-construction well concrete pouring device according to claim 2, characterized in that, The sliding assembly (2) also includes a pin (25), and the support plate (21) and the fixing piece (23) both have a socket that cooperates with the pin (25). When the pin (25) is inserted into the socket, it fixes the support plate (21) and the fixing piece (23).

4. The reverse-construction well concrete pouring device according to claim 1, characterized in that, A traction rope is also fixed on the hopper (4) or the crossbeam (3) for the operator to pull to move the hopper (4).

5. The reverse-construction well concrete pouring device according to any one of claims 1-4, characterized in that, The hopper (4) includes: The hopper body (41) is a hollow inverted cone shape, used for concrete feeding; The discharge pipe (42) is connected to the bottom of the hopper body (41), and the discharge port is formed in the discharge pipe (42). A sliding bracket (43) is fixed on both sides of the hopper body (41) and is used to support the crossbeam (3) so that the hopper (4) can slide along the crossbeam (3).

6. The reverse-construction well concrete pouring device according to claim 5, characterized in that, The sliding bracket (43) includes: The support body (431) is fixed to the edges of the hopper (4) on both sides in the Y direction; Hook-shaped parts (432) are located at both ends of the support body (431), and the hook-shaped parts (432) can be hung on the crossbeam (3) and can slide along it.

7. The reverse-construction well concrete pouring device according to claim 5, characterized in that, The fabric hose (5) is detachably sleeved and connected to the outer wall of the discharge pipe (42).

8. The reverse-construction well concrete pouring device according to any one of claims 1-4, characterized in that, The reverse construction method well concrete pouring device also includes a hose limiting component (6), which is connected to the outer wall of the hopper (4). The material distribution hose (5) is partially inserted through the hose limiting component (6). When the hose limiting component (6) is adjusted, it can change the position and angle of the concrete discharge from the material distribution hose (5).

9. The reverse-construction well concrete pouring device according to claim 8, characterized in that, The hose limiting assembly (6) includes: A chute (61) is fixed around the outer wall of the hopper (4); The movable rod (62) is connected at one end to the slide groove (61) and can slide along the slide groove (61), and the other end is used for the fabric hose (5) to pass through.

10. The reverse-construction well concrete pouring device according to claim 9, characterized in that, The movable lever (62) includes: Rod (621); The ball head (622) is fixed at one end of the rod body (621) and is located in the groove (61); A collar (623) is fixed to the other end of the rod (621) for the hose limiting assembly (6) to pass through.

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