A rainwater and sewage prefabricated side wall support device

Abstract

The utility model relates to a prefabricated side wall support device for rainwater and sewage, belonging to the technical field of road construction, including a cast-in-place base plate, a positioning groove, a limiting rib, a fixed mortar layer, a support pipe, and a limiting side plate. The limiting side plate is provided with a sliding sleeve sleeved on the support pipe, and a plurality of strip-shaped clamping through holes are axially provided on the support pipe. Each limiting side plate is provided with an extrusion plate inserted into the clamping through hole on the side away from the prefabricated side wall, and the outer wall of the extrusion plate is an inclined surface, and the width of the extrusion plate gradually increases from bottom to top in the transverse direction. The utility model can better limit and support the bottom of the prefabricated side wall by casting and forming the positioning groove and the limiting rib on the top of the cast-in-place base plate, and does not affect the movement of construction personnel. A support pipe is provided on the top of the prefabricated side wall, and the support pipe is provided with a sliding sleeve and a limiting side plate. Then, the extrusion plate is inserted into the clamping through hole to press the limiting side plate against the side wall of the prefabricated side wall for rapid limiting. The support structure is simple and easy to use.

Description

Technical Field

[0001] The utility model relates to a rainwater and sewage prefabricated side wall supporting device, belonging to the technical field of road construction. Background Art

[0002] At present, in road construction, it is necessary to build trenches for rainwater and sewage pipes. The traditional construction method is to excavate the foundation trench and then cast it in situ, which affects the progress of construction. Therefore, prefabricated trenches have emerged. The current prefabricated trenches mainly include prefabricated side walls on both sides and prefabricated cover plates on the top. During construction, after the prefabricated side walls are hoisted and placed on the cast-in-situ bottom plate, they need to be supported by support devices to prevent the prefabricated side walls from tipping over. The commonly used support devices are to insert limiting steel bars at the bottom and then set diagonal braces on both sides. This not only requires drilling, which is more troublesome, but also the setting of diagonal braces affects the movement of personnel, which is not conducive to subsequent construction. Utility Model Content

[0003] The utility model provides a rainwater and sewage prefabricated side wall supporting device, which solves the problems existing in the above-mentioned background technology.

[0004] The utility model relates to a prefabricated side wall supporting device for rainwater and sewage, comprising a cast-in-place bottom plate arranged at the bottom of a foundation trench, positioning grooves for positioning the bottom of the prefabricated side wall are arranged on both sides of the top of the cast-in-place bottom plate, limiting retaining edges are arranged on the outer sides of the positioning grooves, a fixed mortar layer is filled between the limiting retaining edges and the prefabricated side wall, a supporting tube is arranged on the top of the prefabricated side wall, limiting side plates are arranged on the left and right sides of each prefabricated side wall, a sliding sleeve which is sleeved on the supporting tube is arranged on the limiting side plate, a plurality of strip-shaped clamping through holes are arranged axially on the supporting tube, and an extrusion plate which is inserted into the clamping through hole is arranged on the side of each limiting side plate away from the prefabricated side wall, the side wall of the extrusion plate away from the prefabricated side wall is an inclined surface, and the width of the extrusion plate along the transverse direction gradually increases from bottom to top.

[0005] As a preferred embodiment, a knocking plate is fixed on the top of the extrusion plate, a reinforcing rib is fixed in the middle of the bottom of the knocking plate, and the bottom inner end of the reinforcing rib is fixed to the extrusion plate. The arrangement of the knocking plate can facilitate knocking downwards and taking out the extrusion plate upwards.

[0006] As a preferred embodiment, the sliding sleeve is composed of two semicircular sleeves, a connecting flange is fixed on the outer wall of the connection between the two semicircular sleeves, and a fastening bolt is provided on the connecting flange. The sliding sleeve can be easily disassembled and installed, and is convenient for separate transportation and storage.

[0007] As a preferred embodiment, a sealing groove is provided at the inner top of the positioning groove, and the sealing groove is filled with sealant to facilitate sealing.

[0008] As a preferred embodiment, adjusting nuts are welded and fixed at both ends of the support tube, the inner thread of the adjusting nut is connected to an adjusting screw, and the outer end of the adjusting screw is hinged to a support seat plate, so that the position of the support seat plates at both ends can be conveniently adjusted according to the width of the base groove, so that the support seat plates can be better tightened against the side wall of the base groove.

[0009] As a preferred embodiment, the support seat plate is U-shaped, and a U-shaped limiting pressure plate is provided in the U-shaped groove of the support seat plate along the front-to-back direction, which can increase the contact area with the side wall of the base groove and prevent the support seat plate from sinking into the side wall of the base groove.

[0010] As a preferred embodiment, a limiting concave surface is provided on the outer side wall of the support tube, and a limiting plane matching with the limiting concave surface is provided on the inner side wall of the sliding sleeve to prevent the sliding sleeve from rotating relative to the support tube.

[0011] As a preferred embodiment, a connecting column is hinged on the middle part of the inner side of the support seat plate, and a rotating sleeve is fixed on the inner end of the connecting column and is sleeved on the outer end part of the adjusting screw. An annular limiting boss is provided on the inner side wall of the rotating sleeve, and a rotating groove matching the limiting boss is provided on the outer side wall of the adjusting screw. An insertion hole is provided at the outer end of the adjusting screw, and a steel bar can be inserted into the insertion hole. Then the adjusting screw can be conveniently rotated to adjust the extension length of the support seat plate, and when the adjusting screw rotates, the support seat plate will not rotate with it, so that the support seat plate is conveniently pressed against the limiting pressure plate.

[0012] The utility model has the following beneficial effects:

[0013] By casting positioning grooves and limiting retaining edges on the top of the cast-in-place base plate, the bottom of the prefabricated side wall can be better limited and supported without affecting the movement of construction workers. A support pipe is set on the top of the prefabricated side wall. The support pipe is provided with a sliding sleeve and a limiting side plate. Then, the extrusion plate is inserted into the clamping through hole to tighten the limiting side plate against the side wall of the prefabricated side wall for rapid limiting. The support structure is simple and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 for Figure 1 A partial structural diagram of

[0016] Figure 3 Schematic diagram of the top structure of the support pipe;

[0017] Figure 4 It is a schematic diagram of the side structure of the sliding sleeve;

[0018] Figure 5 It is a structural schematic diagram of the rotating sleeve;

[0019] In the figure: 1. foundation groove; 2. limiting retaining edge; 3. cast-in-place bottom plate; 4. sealant; 5. fixed mortar layer; 6. limiting pressure plate; 7. adjusting screw; 8. support pipe; 9. extrusion plate; 10. sliding sleeve; 11. limiting side plate; 12. prefabricated side wall; 13. knocking plate; 14. adjusting nut; 15. support seat plate; 16. clamping through hole; 17. limiting plane; 18. socket; 19. rotating sleeve; 20. limiting boss; 21. connecting column. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with embodiments.

[0021] Embodiment 1, as Figures 1 to 5 As shown, the utility model is a prefabricated side wall supporting device for rainwater and sewage, comprising a cast-in-place bottom plate 3 arranged at the bottom of a foundation trench 1, positioning grooves for positioning the bottom of a prefabricated side wall 12 are arranged on both sides of the top of the cast-in-place bottom plate 3, and a limiting rib 2 is arranged on the outer side of the positioning groove, and a fixed mortar layer 5 is filled between the limiting rib 2 and the prefabricated side wall 12, and a support tube 8 is arranged on the top of the prefabricated side wall 12, and each prefabricated side wall 12 is provided with a limiting side plate 11 on the left and right sides, and a sliding sleeve 10 is arranged on the limiting side plate 11 and is sleeved on the support tube 8, and a plurality of strip-shaped clamping through holes 16 are arranged on the support tube 8 along the axial direction, and each limiting side plate 11 is provided with an extrusion plate 9 inserted into the clamping through hole 16 on the side away from the prefabricated side wall 12, and the side wall of the extrusion plate 9 on the side away from the prefabricated side wall 12 is an inclined surface, and the width of the extrusion plate 9 along the transverse direction gradually increases from bottom to top.

[0022] During operation, a foundation trench 1 is dug on the road surface, a cast-in-place bottom plate 3 is cast at the bottom of the foundation trench 1, and maintenance is performed. The prefabricated side wall 12 is hoisted by a crane, and the bottom of the prefabricated side wall 12 is placed in the positioning groove, and the bottom of the inner wall of the prefabricated side wall 12 is close to the inner wall of the positioning groove. According to the position of the prefabricated side wall 12, the position of the limiting side plate 11 is adjusted so that the limiting side plates 11 of the same pair are located on both sides of the upper part of the prefabricated side wall 12, and then the extrusion plate 9 is inserted into the pressing through hole 16, and the extrusion plate is knocked downward. 9, the extrusion plate 9 will squeeze the limiting side plate 11 to be tightly limited on the outer wall of the prefabricated side wall 12, and then a fixed mortar layer 5 is filled between the limiting retaining edge 2 and the prefabricated side wall 12; before covering the prefabricated cover plate, the support tube 8 and the limiting side plate 11 at the corresponding position need to be removed. When removing, knock the extrusion plate 9 upward to make the extrusion plate 9 disengage from the clamping through hole 16, and then move the sliding sleeve 10 to make the limiting side plate 11 away from the prefabricated side wall 12, and then the support tube 8 and the limiting side plate 11 can be removed.

[0023] Embodiment 2, on the basis of embodiment 1, a striking plate 13 is fixed to the top of the extrusion plate 9, a reinforcing rib is fixed to the middle of the bottom of the striking plate 13, and the bottom inner end of the reinforcing rib is fixed to the extrusion plate 9. The setting of the striking plate 13 can increase the striking area and facilitate the up and down movement of the striking extrusion plate 9.

[0024] The sliding sleeve 10 is composed of two semicircular sleeves, and a connecting flange is fixed on the outer side wall of the connection between the two semicircular sleeves, and a fastening bolt is arranged on the connecting flange.

[0025] The inner top of the positioning groove is provided with a sealing groove, and the sealing groove is filled with a sealant 4. The sealant 4 is a waterproof sealant. After the fixed mortar layer 5 is filled, the sealant 4 can be applied in the sealing groove for sealing, or a waterproof coating layer can be poured.

[0026] Adjusting nuts 14 are welded and fixed at both ends of the support tube 8 , the adjusting nut 14 is internally threadedly connected with an adjusting screw rod 7 , and the outer end of the adjusting screw rod 7 is hinged with a supporting seat plate 15 .

[0027] The support seat plate 15 is U-shaped, and a U-shaped limiting pressing plate 6 arranged along the front-back direction is arranged in the U-shaped groove of the support seat plate 15. Adjacent support seat plates 15 of adjacent prefabricated side walls 12 can be pressed on the same limiting pressing plate 6, and the overall supporting effect is better.

[0028] A limiting concave surface is provided on the outer side wall of the support tube 8 , and a limiting plane 17 matching with the limiting concave surface is provided on the inner side wall of the sliding sleeve 10 .

[0029] A connecting column 21 is hingedly connected to the middle of the inner side of the support seat plate 15, and a rotating sleeve 19 is fixed to the inner end of the connecting column 21, which is sleeved on the outer end of the adjusting screw 7. An annular limiting boss 20 is provided on the inner side wall of the rotating sleeve 19, and a rotating groove matching the limiting boss 20 is provided on the outer side wall of the adjusting screw 7. A plug hole 18 is provided on the outer end of the adjusting screw 7. The outer end of the rotating sleeve 19 is closed, and the rotating sleeve 19 is composed of two half sleeves. After the two half sleeves are sleeved on the outer side wall of the non-threaded end of the outer end of the adjusting screw 7, they are welded and fixed, and then the rotating sleeve 19 is welded and fixed to the inner end of the connecting column 21. When the extrusion plate 9 is tightly limited to the outer wall of the prefabricated side wall 12, a steel bar can be inserted into the insertion hole 18, and then the adjusting screw 7 can be rotated by holding the steel bar to adjust the extension length of the support seat plate 15. As the support seat plate 15 is extended, when the support seat plate 15 is inserted into the limiting pressure plate 6, when the adjusting screw 7 is rotated, the support seat plate 15 will not rotate with it, which makes it convenient for the support seat plate 15 to press the limiting pressure plate 6.

[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0031] In the description of the present invention, the terms "inside", "outside", "longitudinal", "lateral", "upper", "lower", "top", "bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

Claims

1. A prefabricated rainwater and sewage side wall support device, comprising a cast-in-place bottom plate (3) arranged at the bottom of a foundation trench (1), characterized in that: Positioning grooves for positioning the bottom of the prefabricated side wall (12) are provided on both sides of the top of the cast-in-place bottom plate (3), and limiting retaining edges (2) are provided on the outer sides of the positioning grooves. A fixed mortar layer (5) is filled between the limiting retaining edges (2) and the prefabricated side wall (12). A support tube (8) is provided on the top of the prefabricated side wall (12). Limiting side plates (11) are provided on the left and right sides of each prefabricated side wall (12). The limiting side plates (11) are provided with a sliding sleeve (10) sleeved on the support tube (8). A plurality of strip-shaped clamping through holes (16) are provided on the support tube (8) along the axial direction. Each limiting side plate (11) is provided with an extrusion plate (9) inserted into the clamping through hole (16) on the side away from the prefabricated side wall (12). The side wall of the extrusion plate (9) on the side away from the prefabricated side wall (12) is an inclined surface, and the width of the extrusion plate (9) increases gradually from bottom to top in the transverse direction.

2. A rainwater and sewage prefabricated side wall support device according to claim 1, characterized in that: A striking plate (13) is fixed to the top of the extrusion plate (9), a reinforcing rib is fixed to the middle of the bottom of the striking plate (13), and the bottom inner end of the reinforcing rib is fixed to the extrusion plate (9).

3. A rainwater and sewage prefabricated side wall support device according to claim 2, characterized in that: The sliding sleeve (10) is composed of two semicircular sleeves, and a connecting flange is fixed on the outer side wall of the connection between the two semicircular sleeves, and a fastening bolt is provided on the connecting flange.

4. The rainwater and sewage prefabricated side wall support device according to claim 1, characterized in that: A sealing groove is provided at the inner top of the positioning groove, and the sealing groove is filled with a sealing glue (4).

5. The rainwater and sewage prefabricated side wall support device according to claim 1, characterized in that: Adjustment nuts (14) are welded and fixed at both ends of the support tube (8), the adjusting nut (14) is internally threadedly connected to an adjustment screw rod (7), and the outer end of the adjustment screw rod (7) is hingedly connected to a support seat plate (15).

6. A rainwater and sewage prefabricated side wall support device according to claim 5, characterized in that: The support seat plate (15) is U-shaped, and a U-shaped limiting pressure plate (6) arranged along the front-rear direction is provided in the U-shaped groove of the support seat plate (15).

7. The rainwater and sewage prefabricated side wall support device according to claim 3 is characterized by: A limiting concave table surface is provided on the outer side wall of the support tube (8), and a limiting plane (17) matching the limiting concave table surface is provided on the inner side wall of the sliding sleeve (10).

8. The rainwater and sewage prefabricated side wall support device according to claim 6, characterized in that: A connecting column (21) is hingedly connected to the middle of the inner side of the support seat plate (15); a rotating sleeve (19) is fixed to the inner end of the connecting column (21) and is sleeved on the outer end of the adjusting screw (7); an annular limiting boss (20) is provided on the inner side wall of the rotating sleeve (19); a rotating groove matching the limiting boss (20) is provided on the outer end side wall of the adjusting screw (7); and a plug hole (18) is provided at the outer end of the adjusting screw (7).

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