A precast concrete foundation for a drainage pipe

Abstract

The present invention discloses a precast concrete foundation for a drainage pipe, which relates to the technical field of pipeline construction, and includes a drainage pipe, wherein a first-class reinforcement mechanism for supporting the drainage pipe is arranged at the bottom of the drainage pipe; a second-class reinforcement mechanism for supporting the edges and corners of the drainage pipe is arranged at the top of the first-class reinforcement mechanism; an injection mechanism for introducing cement slurry is arranged inside the second-class reinforcement mechanism; a fixing mechanism for reinforcing connection is arranged between the first-class reinforcement mechanism and the second-class reinforcement mechanism; the drainage pipe is supported as a whole by the second-class reinforcement mechanism and the first-class reinforcement mechanism, and the foundation construction of the drainage pipe is completed by cooperating with the reinforcement of the fixing mechanism and the introduction of cement slurry by the injection mechanism. The precast concrete foundation for a drainage pipe disclosed by the present invention has the effects of convenient use and high structural strength.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline construction, and in particular to a prefabricated concrete foundation for a drainage pipeline. Background Art

[0002] As an indispensable part of urbanization construction, pipeline engineering plays a huge role in improving people's living standards, and pipeline foundation is an indispensable and important part of pipeline construction. In my country, the diameter of drainage pipes and sewage pipes is mostly 0.2-2 meters, of which the maximum diameter can reach 3 meters and the minimum diameter can reach 0.1 meter. The materials are mainly reinforced concrete and PVC pipes. Before burying the pipeline, it is generally necessary to lay a 100mm thick C15 plain concrete cushion or a 200-300mm thick gravel cushion at the bottom of the trench that meets the design requirements. After the cushion strength reaches the installation requirements, tie the steel bars on the cushion, install the formwork and pour the concrete foundation. After the maintenance until the strength reaches the requirements, the formwork can be removed and the pipeline can be installed.

[0003] However, in actual operation, traditional construction methods require workers to install, dismantle, and carry the formwork back and forth in multiple steps, which prolongs the pipeline installation period and wastes manpower and material resources. In addition, the foundation provided by the formwork casting for the pipeline will have reduced structural strength after long-term use, especially the structural strength of the cushion layer and the gap between the pipeline (support angle), which will lead to uneven stress on the pipeline, cracks, and broken joints. Summary of the invention

[0004] The invention discloses a precast concrete foundation for a drainage pipe, aiming to solve the technical problems that a traditional drainage pipe foundation construction method is cumbersome and inconvenient to operate in practice, and as the service life is extended, the structural strength needs to be improved.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A precast concrete foundation for a drainage pipe, comprising a drainage pipe, wherein a type of reinforcement mechanism for supporting the drainage pipe is arranged at the bottom of the drainage pipe, wherein the type of reinforcement mechanism comprises a plurality of groups of mutually connected and symmetrically distributed pads, and a side plate is arranged on the top of each pad;

[0007] A second type of reinforcement mechanism for supporting the corners of the drain pipe is arranged on the top of the first type of reinforcement mechanism, and the second type of reinforcement mechanism includes a back plate slidably mounted on the top of each side plate, and the drain pipe is clamped between the back plates;

[0008] The second type of reinforcement mechanism is provided with an injection mechanism for introducing cement slurry, and the injection mechanism includes an injection port that penetrates and is opened inside each of the back plates. The side plates and the back plate are both "L" shaped in cross section, and the top of the injection port is located at the top of the vertical plate end of the back plate, and the bottom of the injection port is located at the side of the horizontal plate end of the back plate;

[0009] A fixing mechanism for reinforcing connection is provided between the first type of reinforcing mechanism and the second type of reinforcing mechanism;

[0010] The second type of reinforcement mechanism and the first type of reinforcement mechanism form an integral support for the drainage pipe, and the foundation construction of the drainage pipe is completed by cooperating with the reinforcement of the fixing mechanism and the introduction of cement slurry by the injection mechanism.

[0011] A first-class reinforcement mechanism installed on the concrete cushion layer is provided, and the first-class reinforcement mechanism is fixed by utilizing the hardening of the concrete cushion layer to provide a stable base for the installation of the drain pipe. Meanwhile, a second-class reinforcement mechanism is provided on the top of the first-class reinforcement mechanism. Before placing the drainage pipe, the relative distance between the second-class reinforcement mechanisms is adjusted, and the fixing mechanism is used to lock them. After the drainage pipe is installed, the second-class reinforcement mechanism can further fix the support angle position between the drainage pipe and the concrete cushion layer on the basis of the first-class reinforcement mechanism, so as to maintain the structural strength of the drainage pipe. In conjunction with the operation of the injection mechanism, three-party filling reinforcement is formed between the drainage pipe and the second-class reinforcement mechanism, between the first-class reinforcement mechanism and the second-class reinforcement mechanism, and between the first-class reinforcement mechanism and the foundation soil layer, so as to effectively maintain the structural strength of the drainage pipe after installation and greatly improve the service life of the drainage pipe.

[0012] In a preferred embodiment, the reinforcement mechanism further includes a clamping strip at the end of each pad, and a clamping groove at the bottom of each side plate, through which the clamping groove is engaged with the inside of the clamping strip to form a fixed connection between the pad and the side plate.

[0013] By providing a pad structure installed in the concrete cushion layer, the pad is fixed by utilizing the hardening of the concrete cushion layer to provide a stable base for the installation of the drain pipe. At the same time, a side plate structure is added on the basis of the pad to fix the two sides of the drain pipe, thereby ensuring the structural strength of the drain pipe after installation.

[0014] In a preferred solution, the second type of reinforcement mechanism also includes a fixing seat installed on the side of the back plate, a threaded bolt is rotatably installed on the end of the fixing seat, a conical head is rotatably installed on the other end of the threaded bolt, the conical head passes through the side of the side plate, a limit seat is fixedly installed on the side of the side plate, the conical head is slidably installed inside the limit seat, and the threaded bolt and the limit seat are threadedly connected.

[0015] A slidably mounted back plate structure is further provided on the basis of the side plate, the position of the back plate on the side plate is adjusted according to the size of the drain pipe, and the threaded bolts, fixing seats and limit seats are used to achieve stable adjustment of the side plate. During the adjustment, the cone head at the end of the threaded bolt can move synchronously and penetrate into the soil layer on the side of the foundation, thereby further improving the structural strength of the entire foundation while reinforcing the drain pipe support angle position.

[0016] In a preferred embodiment, the injection mechanism also includes a circulation cavity formed inside the fixing seat and the threaded bolt, a concave discharge port is formed at the bottom of the cone head, two ends of the circulation cavity are respectively connected to the injection port and the concave discharge port, and an overflow port is formed horizontally above the back plate.

[0017] By respectively arranging a flow cavity, an injection port and an inner concave discharge port structure inside the fixing seat, the threaded bolt, the cone head and the back plate, concrete is preliminarily filled into the space between the back plate and the drainage pipe through the injection port, the flow cavity is filled with concrete into the soil where the cone head is inserted, and the overflow port is filled with concrete between the back plate and the side plate, so that filling and reinforcement are performed at corresponding positions respectively, thereby improving the structural strength of the drainage pipe during long-term use and improving the reinforcement efficiency of the equipment.

[0018] In a preferred embodiment, the fixing mechanism includes a connecting plate distributed between the inner sides of the two side panels, the connecting plate is fixedly connected between the two side panels by bolts, and a reinforcing rod is fixedly installed on the side of each back panel, and the end of the reinforcing rod is squeezed into contact with the bottom of the connecting plate to form a lock.

[0019] By setting a reinforcing rod fixed to the side of the back panel and cooperating with a connecting plate structure additionally connected to the side of the side panel, the connecting plate is used to maintain the structural strength between the side panels. At the same time, the installed connecting plate can squeeze the reinforcing rod to fix the back panel, thereby further improving the structural strength of the foundation after construction.

[0020] In a preferred embodiment, the end of the cone head is provided with a convex section to provide a flow space for cement slurry, a nut is sleeved and fixed on the outer side of the threaded bolt, and a feed opening is provided through the top of the transverse plate end of the side plate and the back plate.

[0021] The convex interval is provided to provide space for the outflow of concrete, and the nut can facilitate the operator to screw the threaded bolt, while the additional discharge port can ensure that the concrete introduced into the injection port by the operator can directly contact and mix with the concrete cushion layer, thereby further ensuring the integrity and structural strength of the equipment during use.

[0022] As can be seen from the above, the precast concrete foundation for drainage pipes provided by the present invention has the following improvements and advantages compared with the prior art:

[0023] First, a pad structure installed in the concrete cushion layer is provided, and the pad is fixed by hardening the concrete cushion layer to provide a stable base for the installation of the drain pipe. At the same time, a side plate structure is added on the basis of the pad to fix the two sides of the drain pipe to ensure the structural strength of the drain pipe after installation. A slidably installed back plate structure is further provided on the top of the side plate. The position of the back plate on the side plate is adjusted according to the size of the drain pipe, and the threaded bolt, the fixing seat and the limit seat are used to achieve stable adjustment of the side plate. During the adjustment, the cone head at the end of the threaded bolt can move synchronously and penetrate into the soil layer on the side of the foundation, thereby reinforcing the drain pipe support angle position while improving the structural strength of the entire foundation.

[0024] Secondly, by additionally arranging a flow cavity, an injection port and an inner concave discharge port structure inside the fixing seat, the threaded bolt, the cone head and the back plate, concrete is initially filled into the space between the back plate and the drainage pipe through the injection port, concrete is filled into the soil where the cone head is inserted into the flow cavity, and concrete is filled into the space between the back plate and the side plate through the overflow port, so that multi-level filling and reinforcement are performed at the corresponding positions respectively, thereby further improving the structural strength of the drainage pipe during long-term use and improving the reinforcement efficiency of the equipment.

[0025] Third: by setting a reinforcing rod fixed to the side of the back plate and cooperating with a connecting plate structure additionally connected to the side of the side plate, the connecting plate is used to maintain the structural strength between the side plates. At the same time, the installed connecting plate can squeeze the reinforcing rod to fix the back plate, thereby further improving the structural strength of the foundation after construction. At the same time, the back plates, side plates, pads and other structures that are spliced ​​with each other use parts prefabricated in the factory in advance as the basic formwork, and the cast-in-place concrete cushion layer is combined with the plate body. There is no need to remove the cushion layer baffle, which eliminates the construction process of disassembling and transporting the cushion layer formwork back and forth during traditional pipeline foundation construction. The transportation is convenient and the assembly is quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of a precast concrete foundation for a drainage pipe proposed by the present invention.

[0027] Figure 2 This is an exploded diagram of a type of reinforcement mechanism structure for a precast concrete foundation of a drainage pipe proposed by the present invention.

[0028] Figure 3 A schematic diagram of the top structure of a pad for a precast concrete foundation of a drainage pipe proposed by the present invention.

[0029] Figure 4This is an exploded diagram of the structure of a second type of reinforcement mechanism for a precast concrete foundation of a drainage pipe proposed by the present invention.

[0030] Figure 5 A sectional view of the top structure of a side plate of a precast concrete foundation for a drainage pipe proposed by the present invention.

[0031] Figure 6 A cross-sectional view of the fixing mechanism structure of a precast concrete foundation for a drainage pipe proposed by the present invention.

[0032] Figure 7 A prefabricated concrete foundation for a drainage pipe proposed by the present invention Figure 6 A magnified view of the structure at center.

[0033] Figure 8 The present invention is a cross-sectional view of the injection mechanism structure for a precast concrete foundation of a drainage pipe.

[0034] Fig. 9 A schematic diagram of the peripheral structure of a threaded bolt for a precast concrete foundation of a drainage pipe proposed by the present invention.

[0035] Fig.10 This is a schematic diagram of the operating status of a second type of reinforcement mechanism for a precast concrete foundation of a drainage pipe proposed by the present invention.

[0036] Fig.11 A diagram showing the pouring status of a pad position of a precast concrete foundation for a drainage pipe proposed by the present invention.

[0037] Fig.12 This is a diagram showing the assembly status of a side plate and a pad of a precast concrete foundation for a drainage pipe proposed by the present invention.

[0038] Fig.13 A diagram showing the state of a cone head of a precast concrete foundation for a drainage pipe proposed by the present invention being inserted into the side wall of a foundation pit.

[0039] Fig.14 A diagram showing the pouring state of the cone head position of a precast concrete foundation for a drainage pipe proposed by the present invention.

[0040] Fig.15 A diagram showing the completed pouring state of a precast concrete foundation for a drainage pipe proposed by the present invention.

[0041] In the figure: 1. drain pipe; 2. first-class reinforcement mechanism; 201. pad; 202. side plate; 203. slot; 204. clip strip; 3. second-class reinforcement mechanism; 301. backing plate; 302. fixing seat; 303. threaded bolt; 304. cone head; 305. limit seat; 306. convex interval; 307. nut; 308. sliding groove; 4. injection mechanism; 401. injection port; 402. circulation cavity; 403. concave discharge port; 404. overflow port; 405. discharge port; 5. fixing mechanism; 501. connecting plate; 502. bolt; 503. reinforcing rod; 504. positioning slot; 505. positioning member. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0043] The precast concrete foundation for a drainage pipe disclosed by the present invention is mainly used in the scene of foundation construction when installing the drainage pipe.

[0044] Reference Figures 1 to 15 A prefabricated concrete foundation for a drainage pipe comprises a drainage pipe 1, a type of reinforcement mechanism 2 for supporting the drainage pipe 1 is arranged at the bottom of the drainage pipe 1, the type of reinforcement mechanism 2 comprises a plurality of groups of mutually connected and symmetrically distributed pads 201, and a side plate 202 is distributed on the top of each pad 201;

[0045] A second type of reinforcement mechanism 3 for supporting the corners of the drain pipe 1 is arranged on the top of the first type of reinforcement mechanism 2. The second type of reinforcement mechanism 3 includes a back plate 301 slidably mounted on the top of each side plate 202, and the drain pipe 1 is clamped between the back plates 301;

[0046] The second type reinforcement mechanism 3 is provided with an injection mechanism 4 for introducing cement slurry, and the injection mechanism 4 includes an injection port 401 that penetrates and is opened inside each back plate 301. The side plate 202 and the back plate 301 are both "L" shaped in cross section, and the top of the injection port 401 is located at the top of the vertical plate end of the back plate 301, and the bottom of the injection port 401 is located at the side of the horizontal plate end of the back plate 301;

[0047] A fixing mechanism 5 for reinforcement connection is provided between the first type reinforcement mechanism 2 and the second type reinforcement mechanism 3;

[0048] The second type reinforcement mechanism 3 and the first type reinforcement mechanism 2 form an overall support for the drainage pipe 1, and the foundation construction of the drainage pipe 1 is completed by cooperating with the reinforcement of the fixing mechanism 5 and the introduction of cement slurry by the injection mechanism 4.

[0049] In this embodiment: construction workers excavate a pipeline foundation pit, place a type-one reinforcement mechanism 2 into the pipeline foundation pit, and fill concrete into the middle of the type-one reinforcement mechanism 2 according to the designed height of the cast-in-place concrete cushion layer and wait for the concrete to solidify. After the concrete solidifies, the construction workers adjust the spacing of the type-two reinforcement mechanisms 3 according to the pipe diameter of the drainage pipe 1 to be installed. While the type-two reinforcement mechanism 3 is adjusted, the end portion will pass through the type-one reinforcement mechanism 2 and penetrate into the side wall of the pipeline foundation pit. After completing the adjustment of the type-two reinforcement mechanism 3, the construction workers complete the fixed installation of the type-one reinforcement mechanism 2 and the type-two reinforcement mechanism 3 through the fixing mechanism 5, and install the drainage pipe 1 into the inside of the type-two reinforcement mechanism 3 by hoisting to complete the installation of the drainage pipe 1. Thereafter, the construction workers introduce concrete slurry into the inside of the type-two reinforcement mechanism 3 through the injection mechanism 4, and the slurry water will successively enter between the drainage pipe 1 and the type-two reinforcement mechanism 3, between the type-one reinforcement mechanism 2 and the type-two reinforcement mechanism 3, and between the type-one reinforcement mechanism 2 and the concrete cushion layer to form a three-party filling reinforcement.

[0050] In the above scheme, in order to provide a stable installation base for the drainage pipe 1, the specific operation is as follows.

[0051] Reference Figures 1 to 7 In a preferred embodiment, a type of reinforcement mechanism 2 also includes a clamping strip 204 at the end of each pad 201, and a clamping groove 203 is provided at the bottom of each side plate 202, and the clamping groove 203 is engaged with the inside of the clamping strip 204 to form a fixed connection between the pad 201 and the side plate 202.

[0052] In this embodiment: construction workers dig a pipeline foundation pit, symmetrically place a group of pads 201 into the pipeline foundation pit, fill concrete into the middle of the pad 201 according to the designed height of the cast-in-place concrete cushion layer and wait for the concrete to solidify. After the concrete solidifies, the construction workers install the side plate 202 on the top of the pad 201, so that the groove 203 at the bottom of the side plate 202 is inserted into the outer side of the strip 204 at the top of the pad 201, completing the assembly of the side plate 202 and the pad 201. The outer side of the assembled side plate 202 will fit the side wall of the pipeline foundation pit.

[0053] In the above scheme, considering that the compactness of the concrete at the supporting angle of the drain pipe 1 will be reduced after long-term use, in order to maintain the structural strength around the drain pipe 1, the specific operation is as follows.

[0054] Reference Figures 1 to 9In a preferred embodiment, the second type reinforcement mechanism 3 also includes a fixed seat 302 installed on the side of the back plate 301, and a threaded bolt 303 is rotatably installed on the end of the fixed seat 302. A cone head 304 is rotatably installed on the other end of the threaded bolt 303. The cone head 304 passes through the side of the side plate 202. A limit seat 305 is fixedly installed on the side of the side plate 202. The cone head 304 is slidably installed inside the limit seat 305, and the threaded bolt 303 and the limit seat 305 are threadedly connected.

[0055] In this embodiment: after the assembly of the side plate 202 and the backing plate 201 is completed, the construction worker adjusts the spacing of the second type reinforcement mechanism 3 according to the pipe diameter of the drainage pipe 1 to be installed, and twists the threaded bolt 303 with a wrench, so that the threaded bolt 303 and the limit seat 305 form a relative push, thereby moving toward the inside of the limit seat 305. At the same time, the back plate 301 and the cone head 304 are driven to move synchronously through the fixed seat 302, and the two symmetrically distributed back plates 301 are adjusted in turn, and the cone head 304 will be directly inserted into the side wall of the pipeline foundation pit. The specific operating status is as follows: Fig.10 shown.

[0056] It should be additionally explained that a nut 307 is sleeved and fixed on the outer side of the threaded bolt 303 , so that the operator can conveniently tighten the threaded bolt 303 with a wrench.

[0057] Furthermore, a sliding groove 308 is provided on the upper side of the side plate 202 , and the back plate 301 is slidably connected to the inside of the sliding groove 308 to maintain the stability of the back plate 301 when moving.

[0058] In the above scheme, in order to complete the construction of the foundation, the specific operations are as follows.

[0059] Reference Figures 2 to 4 , Figures 8 to 9 In a preferred embodiment, the injection mechanism 4 also includes a flow cavity 402 that is opened through the inside of the fixed seat 302 and the threaded bolt 303, a concave discharge port 403 is opened at the bottom of the cone head 304, both ends of the flow cavity 402 are respectively connected to the injection port 401 and the concave discharge port 403, and an overflow port 404 is opened horizontally above the back plate 301.

[0060] In this embodiment: after the placement of the drain pipe 1 is completed, the construction workers inject concrete slurry through the injection port 401 through an external pressurized nozzle. The concrete slurry will first flow out from the bottom of the injection port 401 and flow to between the back plate 301 and the drain pipe 1. At the same time, the concrete slurry will also flow through the flow cavity 402 toward the concave discharge port 403, and gush through the concave discharge port 403 to the inside of the foundation pit side wall where the cone head 304 is inserted, so as to reinforce the foundation pit side wall. As the concrete slurry level between the back plate 301 and the drain pipe 1 rises until the liquid level reaches the overflow port 404, the concrete slurry that continues to be applied will flow through the overflow port 404 to between the back plate 301 and the side plate 202 until the entire foundation is filled; wherein, a convex interval 306 is provided at the end of the cone head 304 to provide a flow space for cement slurry.

[0061] Furthermore, a discharge port 405 is provided through the top of the transverse plate end of the side plate 202 and the back plate 301. A portion of the concrete slurry injected between the back plate 301 and the drainage pipe 1 will be diverted through the discharge port 405 and contact the pre-cast concrete cushion layer, thereby improving the structural strength of the entire foundation.

[0062] In the above scheme, in order to further improve the structural strength of this infrastructure construction, the specific operations are as follows.

[0063] Reference Figures 2 to 7 In a preferred embodiment, the fixing mechanism 5 includes a connecting plate 501 distributed between the inner sides of the two side plates 202, and the connecting plate 501 is fixedly connected between the two side plates 202 by bolts 502. A reinforcing rod 503 is fixedly installed on the side of each back plate 301, and the end of the reinforcing rod 503 is squeezed and contacted with the bottom of the connecting plate 501 to form a lock.

[0064] In this embodiment, after the side plates 202 and the backing plates 201 are assembled, the construction workers adjust the spacing of the two types of reinforcement mechanisms 3 according to the pipe diameter of the drainage pipe 1 to be installed, and use a wrench to rotate the threaded bolts 303 to drive the back plate 301 to move outward synchronously. At the same time, the reinforcing rods 503 will move synchronously until the back plate 301 reaches the set position. At this time, the construction workers manually snap the connecting plate 501 into the upper ends of the two sets of reinforcing rods 503 that fit together and the seams of the two adjacent side plates 202. At this time, the construction workers use bolts 502 to fix the connecting plate 501; wherein, a positioning piece 505 is provided at the bottom of the connecting plate 501, and a positioning groove 504 is provided at the end of the reinforcing rod 503. When the connecting plate 501 and the end of the reinforcing rod 503 are in contact, the positioning piece 505 and the positioning groove 504 will engage with each other, thereby completing the fixation of the back plate 301. After completing the installation of the connecting plate 501, the construction workers place the drain pipe 1 between the two sets of back plates 301 by hoisting.

[0065] Working principle: When in use, the construction workers dig a pipeline foundation pit, put a set of pads 201 symmetrically into the pipeline foundation pit, fill the middle of the pads 201 with concrete according to the designed height of the cast-in-place concrete cushion layer and wait for the concrete to solidify. Fig.11 As shown; after the concrete solidifies, the construction workers then install the side plate 202 on the top of the pad 201, so that the groove 203 at the bottom of the side plate 202 is inserted into the outer side of the card strip 204 at the top of the pad 201, completing the assembly of the side plate 202 and the pad 201, as shown Fig.12 As shown; the outer side of the assembled side plate 202 will fit the side wall of the pipeline foundation pit; after completing the assembly of the side plate 202 and the pad 201, the construction worker adjusts the spacing of the second type reinforcement mechanism 3 according to the pipe diameter of the drainage pipe 1 to be installed, and screws the threaded bolt 303 with a wrench, so that the threaded bolt 303 and the limit seat 305 form a relative push, thereby moving toward the inside of the limit seat 305, and at the same time, the back plate 301 and the cone head 304 are driven to move synchronously through the fixed seat 302, and the two symmetrically distributed back plates 301 are adjusted in turn, and the cone head 304 will be directly inserted into the side wall of the pipeline foundation pit, as shown in FIG. Fig.13 As shown; until the back plate 301 reaches the specified position, and the reinforcing rod 503 moves synchronously with the movement of the back plate 301, the construction worker manually inserts the connecting plate 501 into the gap between the two sets of reinforcing rods 503 and the adjacent side plates 202, and then fixes the connecting plate 501 with the bolts 502. When the connecting plate 501 and the ends of the reinforcing rods 503 are in contact, the positioning piece 505 and the positioning groove 504 will engage with each other, thereby completing the fixing of the back plate 301 and completing the connection of the connecting plate 5 After the installation of 01, the construction workers place the drainage pipe 1 between the two sets of backboards 301 by hoisting. At this time, the construction workers inject concrete slurry through the injection port 401 through the external pressurized nozzle. The concrete slurry will first flow out from the bottom of the injection port 401 and flow between the backboard 301 and the drainage pipe 1. At the same time, the concrete slurry will also flow through the flow cavity 402 toward the concave discharge port 403, and gush through the concave discharge port 403 to the inside of the foundation pit side wall where the cone head 304 is inserted, so as to reinforce the foundation pit side wall. Fig.14 As shown; as the concrete slurry level between the back plate 301 and the drain pipe 1 rises until the liquid level reaches the overflow port 404, the concrete slurry that continues to be applied will flow through the overflow port 404 to between the back plate 301 and the side plate 202 until the entire foundation is filled, waiting for the foundation to solidify and form, and completing the construction of the foundation, as shown Fig.15 shown.

[0066] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A precast concrete foundation for a drainage pipe, comprising a drainage pipe (1), characterized in that: A type of reinforcement mechanism (2) for supporting the drainage pipe (1) is arranged at the bottom of the drainage pipe (1), the type of reinforcement mechanism (2) comprising a plurality of groups of mutually connected and symmetrically distributed pads (201), each of the pads (201) having a side plate (202) distributed on the top; A second type of reinforcement mechanism (3) for supporting the corners of the drainage pipe (1) is arranged on the top of the first type of reinforcement mechanism (2), the second type of reinforcement mechanism (3) comprising a back plate (301) slidably mounted on the top of each of the side plates (202), the drainage pipe (1) being clamped between the back plates (301), a fixing seat (302) being mounted on the side of the back plate (301), a threaded bolt (303) being rotatably mounted on the end of the fixing seat (302), a cone head (304) being rotatably mounted on the other end of the threaded bolt (303), the cone head (304) penetrating from the side of the side plate (202), a limiting seat (305) being fixedly mounted on the side of the side plate (202), the cone head (304) being slidably mounted inside the limiting seat (305), and the threaded bolt (303) and the limiting seat (305) being threadedly connected; The second type reinforcement mechanism (3) is provided with an injection mechanism (4) for introducing cement slurry, the injection mechanism (4) comprising an injection port (401) extending through the interior of each back plate (301), the side plate (202) and the back plate (301) are both L-shaped in cross section, the top of the injection port (401) is located at the top of the vertical plate end of the back plate (301), the bottom of the injection port (401) is located at the side of the horizontal plate end of the back plate (301), a circulation cavity (402) is provided through the interior of the fixing seat (302) and the threaded bolt (303), a concave discharge port (403) is provided at the bottom of the cone head (304), the two ends of the circulation cavity (402) are respectively connected to the injection port (401) and the concave discharge port (403), and an overflow port (404) is provided horizontally above the back plate (301); A fixing mechanism (5) for reinforcing the connection is provided between the first type of reinforcing mechanism (2) and the second type of reinforcing mechanism (3); The second type of reinforcement mechanism (3) and the first type of reinforcement mechanism (2) form an integral support for the drainage pipe (1), and the reinforcement of the fixing mechanism (5) and the introduction of cement slurry by the injection mechanism (4) are coordinated to complete the foundation construction of the drainage pipe (1); A material discharge opening (405) is provided through the top of the transverse plate end of the side plate (202) and the back plate (301).

2. A precast concrete foundation for a drainage pipe according to claim 1, characterized in that: The first type of reinforcement mechanism (2) further comprises a clamping strip (204) provided at the end of each of the pads (201), and a clamping slot (203) provided at the bottom of each of the side plates (202), wherein the clamping slot (203) is clamped into the interior of the clamping strip (204) to form a fixed connection between the pad (201) and the side plate (202).

3. A precast concrete foundation for a drainage pipe according to claim 2, characterized in that: The fixing mechanism (5) comprises a connecting plate (501) distributed between the inner sides of the two side plates (202), the connecting plate (501) being fixedly connected between the two side plates (202) by bolts (502), a reinforcing rod (503) being fixedly mounted on the side surface of each back plate (301), the end of the reinforcing rod (503) being in compression contact with the bottom of the connecting plate (501) to form a locking state.

4. A precast concrete foundation for a drainage pipe according to claim 3, characterized in that: The end of the cone head (304) is provided with a convex section (306) for providing a flow space for cement slurry.

5. A precast concrete foundation for a drainage pipe according to claim 4, characterized in that: A nut member (307) is sleeved and fixed on the outer side of the threaded bolt (303).

6. A precast concrete foundation for a drainage pipe according to claim 5, characterized in that: A sliding groove (308) is provided above the side plate (202), and the back plate (301) is slidably connected to the inside of the sliding groove (308).

7. A precast concrete foundation for a drainage pipe according to claim 6, characterized in that: A positioning piece (505) is provided at the bottom of the connection plate (501), a positioning groove (504) is provided at the end of the reinforcing rod (503), and the positioning piece (505) and the positioning groove (504) are engaged with each other.

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