A culvert foundation pit support reinforcing device

Abstract

The utility model discloses a culvert foundation pit support reinforcing device. Include: side baffle, the front and back side of side baffle all is equipped with the docking structure that protrude to the inside, the docking structure forms the clamping groove, the wrapping docking sleeve is equipped with two embedded protrusions, and the embedded protrusion embeds the clamping groove, the bottom connecting rod is connected fixedly with two wrapping docking sleeves that are left and right alignment respectively, the reinforcing rod is attached with the inside of side baffle, the top screw is screwed on the wrapping docking sleeve, and the reinforcing rod is opposite to the side of side baffle. The embedded protrusion of the wrapping docking sleeve embeds the clamping groove, can be wrapped and limited the docking structure of the adjacent side baffle of front and back. The probability of the loose of adjacent side plate connecting part is reduced greatly, and the stability of the whole support structure is ensured. The device does not need to increase the thickness of side baffle simply for improving the strength of side baffle, but the overall structure strength is enhanced through the synergistic effect of docking structure, wrapping docking sleeve, reinforcing rod and other components.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular, to a culvert foundation pit support and reinforcement device. Background Technology

[0002] In the construction of culvert projects, the excavation of the foundation pit is one of the key steps, and the stability of the foundation pit is directly related to construction safety and project quality. Since culverts are usually built in areas with complex geological conditions, such as soft soil, sandy soil, or water-rich strata, problems such as sidewall deformation and collapse are very likely to occur after the foundation pit is excavated. Therefore, it is necessary to use support and reinforcement devices to effectively restrain the sidewalls of the foundation pit.

[0003] Currently, in commonly used culvert foundation pit support systems, the connection points between adjacent side plates are prone to loosening. Furthermore, some support devices have unreasonable stress structures, making them susceptible to deformation or damage under long-term earth pressure on the pit sidewalls. This fails to provide a continuous and stable support effect, posing a threat to construction safety. On the other hand, simply increasing the thickness of the side plates to improve their strength would result in excessive weight. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a culvert foundation pit support and reinforcement device.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A culvert foundation pit support and reinforcement device includes: two sets of side baffles spaced apart on the left and right, with the side baffles in the same set arranged in a front-to-back direction. Each side baffle has an inwardly protruding butt joint structure on both its front and back sides. The opposing sides of the butt joint structures on the front and back sides of the same side baffle form locking grooves. A wrapping butt joint sleeve extends vertically to wrap the butt joint structures at the joint of two adjacent side baffles, thus enabling the splicing of the two side baffles. The wrapping butt joint sleeve has two embedding protrusions that embed into the locking grooves at the joint of the two side baffles. A bottom connecting rod is fixed at both ends to the two wrapping butt joint sleeves aligned on the left and right sides, respectively. A reinforcing rod fits against the inner side of the side baffle. A tightening screw is threaded into the wrapping butt joint sleeve and abuts against the side of the reinforcing rod facing away from the side baffle.

[0007] Furthermore, the docking structure includes a vertical extension and a vertical folding portion. The vertical extension is vertically connected to the front and rear sides of the side baffle, and the vertical folding portion is vertically connected to the end of the vertical extension away from the side baffle. The vertical folding portions on the front and rear sides of the same side baffle extend towards each other. The side baffle, the vertical extension, and the vertical folding portion define a locking groove.

[0008] Furthermore, the package docking sleeve includes a vertical plate, and the front and rear sides of the vertical plate are provided with side packaging portions, and the embedded protrusion is provided at the end of the side packaging portion away from the vertical plate.

[0009] Furthermore, the thickness of the embedded protrusion is less than that of the slot; the distance between the embedded protrusion and the vertical plate is greater than the thickness of the vertical fold.

[0010] Furthermore, the vertical plate is provided with a first threaded hole, and a first pre-tightening screw is threaded onto the first threaded hole, the end of the first pre-tightening screw abutting against two corresponding mating structures.

[0011] Furthermore, the bottom connecting rod has vertical end connecting plates at both ends, and the end connecting plates and the vertical plates have corresponding holes for connection and fixation by fasteners.

[0012] Furthermore, a reinforcing rib is provided between the bottom connecting rod and the end connecting plate.

[0013] Furthermore, the reinforcing rod is a cross-shaped rod, and the front and rear sides of the wrapping and docking sleeve are provided with connecting blocks spaced vertically. The connecting block is provided with a second threaded hole, and the tightening screw is threaded into the second threaded hole. The tightening screw abuts against the end of the connecting rod.

[0014] Furthermore, the end of the connecting rod is provided with a positioning groove, and the end of the tightening screw is embedded in the positioning groove.

[0015] Furthermore, the upper end of the package docking sleeve is provided with a horizontally extending top plate, and the top plate is provided with anchoring holes.

[0016] This utility model has the following beneficial effects:

[0017] The connecting structures on the front and rear sides of the side baffles create locking grooves at the joints of adjacent side baffles. Two embedded protrusions in the connecting sleeve are also embedded in these grooves, effectively securing the connecting structures of adjacent side baffles. This significantly reduces the probability of loosening at the connection points of adjacent side baffles, ensuring the overall stability of the support structure. The reinforcing rod fits snugly against the inner side of the side baffle, and the tightening screw is threaded into the connecting sleeve and abuts against the side of the reinforcing rod facing away from the side baffle, forming an effective force transmission path. Furthermore, the reinforcing rod effectively enhances the load-bearing capacity of the side baffles. When soil pressure from the pit sidewall acts on the side baffles, the force can be transmitted through the reinforcing rod to the connecting sleeve, and then distributed throughout the entire support system via the bottom connecting rod, preventing deformation or damage caused by excessive local stress and providing a stable support effect over a long period. This device does not require simply increasing the thickness of the side baffles to improve their strength; instead, it enhances the overall structural strength through the synergistic effect of the connecting structure, the connecting sleeve, and the reinforcing rod.

[0018] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0020] Figure 1 This is a structural schematic diagram of the usage state of one embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the overall structure of one embodiment of the present utility model;

[0022] Figure 3 yes Figure 2 Enlarged view of point A;

[0023] Figure 4 yes Figure 3 A schematic diagram of the decomposed state structure;

[0024] Figure 5 yes Figure 1 The main view;

[0025] Figure 6 yes Figure 5 Sectional view at BB;

[0026] Figure 7 This is a structural schematic diagram of the second embodiment of the present invention in its usage state;

[0027] Figure 8 This is a structural schematic diagram of the third embodiment of the present invention in use.

[0028] Legend:

[0029] 101 foundation pit, 100 side baffle, 110 docking structure, 111 locking groove, 112 vertical extension, 113 vertical folding section;

[0030] The package includes a connecting sleeve 200, an embedded protrusion 210, a vertical plate 220, a first threaded hole 221, a first pre-tightening screw 222, a side package 230, a connecting block 240, a second threaded hole 241, a top plate 250, an anchoring hole 251, and a crossbar 260.

[0031] Bottom connecting rod 300, end connecting plate 310, reinforcing rib plate 320;

[0032] Reinforcing rod 400, positioning groove 410;

[0033] Tighten the screw 500. Detailed Implementation

[0034] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0037] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0038] Please refer to Figure 1 and Figure 2 A preferred embodiment of the present invention provides a culvert foundation pit support and reinforcement device, including a side baffle 100, a wrapping connecting sleeve 200, a bottom connecting rod 300, a reinforcing rod 400, and a tightening screw 500.

[0039] Two sets of side baffles 100 are spaced apart on the left and right sides. Side baffles 100 in the same set are arranged along the front-to-back direction. Both the front and back sides of each side baffle 100 have inwardly protruding mating structures 110. The direction facing the center of the pit 101 is inward, and the direction away from the center of the pit 101 is outward. The inward protrusion means that the mating structures 110 on the left and right side baffles 100 protrude towards each other; the mating structure 110 of the left side baffle 100 protrudes to the right, and the mating structure 110 of the right side baffle 100 protrudes to the left. The outer surface of the side baffle 100 will fit against the sidewall of the pit. The opposing sides of the mating structures 110 on the front and back sides of the same side baffle 100 form locking grooves 111. That is, the rear side of the mating structure 110 on the front side of the side baffle 100 has a locking groove 111 with an opening facing backward, and the front side of the mating structure 110 on the rear side of the side baffle 100 has a locking groove 111 with an opening facing forward.

[0040] The wrapping sleeve 200 extends vertically and wraps around the docking structure 110 at the joint of two adjacent side panels 100, thus enabling the two side panels 100 to be joined. The wrapping sleeve 200 has two embedded protrusions 210, which are embedded into the locking grooves 111 at the joint (joint) of the two side panels 100. That is, both the front and rear sides of the two side panels 100 are provided with wrapping sleeves 200, and the joint of two adjacent side panels 100 shares one wrapping sleeve 200. The wrapping sleeve 200 is used to limit the positioning of the docking structure 110 at the joint of the two adjacent side panels 100. The bottom connecting rod 300 is connected and fixed at both ends to the two wrapping sleeves 200 aligned to the left and right, respectively, to provide lateral support for the side panels 100 on both sides. The reinforcing rod 400 fits against the inner side of the side panel 100. The tightening screw 500 is threaded into the wrapping sleeve 200 and abuts against the side of the reinforcing rod 400 facing away from the side baffle 100, thereby pressing the reinforcing rod 400 tightly against the inner side of the side baffle 100.

[0041] This utility model provides a culvert foundation pit support and reinforcement device. Through the docking structure 110 provided on the front and rear sides of the side baffles 100, a locking groove 111 is formed at the docking point of adjacent side baffles 100. Two embedded protrusions 210 of the wrapping docking sleeve 200 are embedded into the locking groove 111, thus wrapping and limiting the docking structure 110 of the adjacent side baffles 100. This significantly reduces the probability of loosening at the connection points of adjacent side plates, ensuring the overall stability of the support structure. The reinforcing rod 400 fits against the inner side of the side baffle 100, and the tightening screw 500 is threadedly connected to the wrapping docking sleeve 200 and abuts against the side of the reinforcing rod 400 facing away from the side baffle 100, forming an effective force transmission path. Furthermore, the reinforcing rod 400 effectively strengthens the load-bearing capacity of the side baffle 100. When the earth pressure on the sidewall of the foundation pit acts on the side baffle 100, the force can be transmitted through the reinforcing rod 400 to the wrapping connecting sleeve 200, and then distributed to the entire support system through the bottom connecting rod 300. This avoids deformation or damage caused by excessive local stress and can provide a stable support effect for a long time. This device does not require simply increasing the thickness of the side baffle 100 to improve its strength. Instead, it enhances the overall structural strength through the synergistic effect of components such as the connecting structure 110, the wrapping connecting sleeve 200, and the reinforcing rod 400.

[0042] Reference Figure 3 In a further embodiment of this utility model, the docking structure 110 includes a vertical extension 112 and a vertical folding portion 113. The vertical extension 112 is vertically connected to the front and rear sides of the side baffle 100, and the vertical folding portion 113 is vertically connected to the end of the vertical extension 112 away from the side baffle 100. The vertical folding portions 113 on the front and rear sides of the same side baffle 100 extend towards each other, that is, the vertical folding portion 113 on the front side of the side baffle 100 extends rearward, and the vertical folding portion 113 on the rear side of the side baffle 100 extends forward. The side baffle 100, the vertical extension 112, and the vertical folding portion 113 define a locking groove 111. The bending structure of the vertical extension 112 and the vertical folding portion 113, together with the side baffle 100, defines the locking groove 111, so that the contour of the locking groove 111 matches and limits the insertion protrusion 210 of the docking sleeve 200. This improved the tightness of the fit, further ensuring the long-term reliability of the 100mm splicing of adjacent side panels.

[0043] Reference Figure 5 and Figure 6In a further embodiment of this utility model, the wrapping and docking sleeve 200 includes a vertical plate 220, with side wrapping portions 230 on the front and rear sides of the vertical plate 220, and an embedded protrusion 210 located at the end of the side wrapping portion 230 away from the vertical plate 220. The vertical plate 220 and the side wrapping portions 230 achieve all-round wrapping and constraint of the docking structure 110 of the adjacent side baffles 100. The side wrapping portions 230 on the front and rear sides wrap around the docking structure 110 from the side, forming a wrapping and limiting of the docking structure 110 at the docking point. In addition, the embedded protrusion 210 can penetrate into the locking groove 111, forming a double limiting of outer wrapping and inner embedding, effectively preventing the docking structure from shifting or separating in the horizontal direction.

[0044] Reference Figure 5 and Figure 6 In a further embodiment of this utility model, the thickness of the embedded protrusion 210 is less than that of the locking groove 111; the distance between the embedded protrusion 210 and the vertical plate 220 is greater than the thickness of the vertical fold-back portion 113. The fact that the thickness of the embedded protrusion 210 is less than that of the locking groove 111, and the distance between the embedded protrusion 210 and the vertical plate 220 is greater than the thickness of the vertical fold-back portion 113, provides a reasonable assembly clearance for structural installation, effectively solving the installation difficulties caused by dimensional errors in traditional rigid connections. During assembly, the embedded protrusion 210 can easily be inserted into the locking groove 111, and there is also space between the vertical fold-back portion 113 and the vertical plate 220, facilitating installation and embedding.

[0045] Reference Figure 5 and Figure 6 In a further embodiment of this utility model, the vertical plate 220 is provided with a first threaded hole 221, and a first pre-tightening screw 222 is threadedly connected to the first threaded hole 221. The end of the first pre-tightening screw 222 abuts against the two corresponding docking structures 110. The first threaded hole 221 and the first pre-tightening screw 222 on the vertical plate 220 cooperate to form an adjustable pre-tightening fixing structure, which can further enhance the tightness of the connection between the wrapping docking sleeve 200 and the docking structure 110. By tightening the first pre-tightening screw 222 so that its end abuts against the two corresponding docking structures 110, a lateral pre-tightening force can be applied to the docking structure, eliminating the assembly gap between the embedded protrusion 210 and the locking groove 111, so that the docking structure of the wrapping docking sleeve and the side baffle 100 forms a rigid connection whole.

[0046] Reference Figure 4In a further embodiment of this utility model, the bottom connecting rod 300 has vertically extending end connecting plates 310 at both ends. The end connecting plates 310 and the vertical plate 220 have corresponding holes for connection and fixation via fasteners. Specifically, the vertical plate 220 has threaded holes, and the end connecting plate 310 has oblong holes aligned with the threaded holes. Screws are installed in the threaded holes and oblong holes to achieve connection and fixation between the end connecting plate 310 and the vertical plate 220. This achieves a rigid connection between the left and right sides of the wrapping sleeves 200, constructing a lateral stability frame for the support device.

[0047] Reference Figure 4 In a further embodiment of this utility model, a reinforcing rib plate 320 is provided between the bottom connecting rod 300 and the end connecting plate 310. The reinforcing rib plate 320 between the bottom connecting rod 300 and the end connecting plate 310 significantly enhances the structural strength and bending resistance of the connection between the two. During the foundation pit support process, the bottom connecting rod needs to withstand the lateral tensile and compressive forces transmitted by the left and right wrapping sleeves. The reinforcing rib plate 320 disperses the stress at the connection point through a triangular stabilizing structure, effectively preventing deformation or breakage at the connection between the bottom connecting rod and the end connecting plate, thus greatly improving the load-bearing capacity of the bottom connecting rod. It can maintain structural stability under greater earth pressure, further ensuring the lateral stiffness of the entire support system.

[0048] Reference Figure 4 In a further embodiment of this utility model, the reinforcing rod 400 is a cross-shaped rod, and connecting blocks 240 are provided at intervals on both the front and rear sides of the sleeve 200. Each connecting block 240 has a second threaded hole 241, and a tightening screw 500 is threaded into the second threaded hole 241, abutting against the end of the connecting rod. The reinforcing rod 400 uses two intersecting connecting rods to form a cross-shaped support structure, fitting snugly against the inner side of the side baffle 100 to ensure sufficient coverage and prevent excessive local stress on the side baffle, which could cause denting or deformation. The connecting blocks 240 provide a stable mounting base for the tightening screw 500, and the tightening screw 500 abuts against the end of the connecting rod, ensuring a tight fit between the reinforcing rod and the side baffle, forming an efficient force transmission path.

[0049] Reference Figure 4 In a further embodiment of this utility model, a positioning groove 410 is provided at the end of the connecting rod, and the end of the tightening screw 500 is embedded in the positioning groove 410. The positioning groove 410 is a blind groove, thus having an end wall for the tightening screw 500 to abut against. The positioning groove 410 at the end of the connecting rod and the embedded engagement of the end of the tightening screw 500 realize the positioning of the reinforcing rod 400 and the tightening screw 500, ensuring the installation accuracy of the reinforcing rod 400.

[0050] Reference Figure 7In other embodiments of this utility model, the upper end of the wrapping sleeve 200 is provided with a horizontally extending top plate 250, and the top plate 250 is provided with anchoring holes 251. The horizontal top plate 250 and anchoring holes 251 at the upper end of the wrapping sleeve 200 provide additional anchoring points for the support device, enabling the device to connect with the stratum at the top of the pit, thereby improving the bearing capacity and anti-overturning capacity of the upper end of the wrapping sleeve 200 and the side baffle 100. Anchor rods can be inserted into the anchoring holes 251, and the anchor rods are embedded in the soil and rock of the stratum and fixed with the surrounding stratum, which can effectively offset the overturning moment generated by the soil pressure on the side wall of the pit on the support device, further improving the overall stability and anti-overturning capacity of the support device under complex geological conditions.

[0051] Reference Figure 8 In other embodiments of this utility model, in some scenarios where the foundation pit is high, the upper end of the left and right aligned wrapping sleeve 200 is connected by a crossbar 260, thereby improving the load-bearing capacity and anti-overturning capacity of the upper end, and since the foundation pit is high, it does not affect people passing through it.

[0052] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A culvert foundation pit support and reinforcement device, characterized in that, include: Side baffles (100) are provided in two sets at intervals on the left and right sides. The side baffles (100) in the same set are arranged in the front and back direction. The front and back sides of the side baffles (100) are provided with inwardly protruding docking structures (110). The opposing sides of the docking structures (110) on the front and back sides of the same side baffle (100) are formed with locking grooves (111). The wrapping sleeve (200) extends vertically and wraps the docking structure (110) at the docking point of the two adjacent side baffles (100) to achieve splicing of the two side baffles (100); the wrapping sleeve (200) is provided with two embedding protrusions (210), which are embedded into the locking grooves (111) at the docking point of the two side baffles (100); The bottom connecting rod (300) is connected and fixed at both ends to two wrapping sleeves (200) aligned to the left and right respectively; the reinforcing rod (400) is attached to the inner side of the side baffle (100); The tightening screw (500) is threaded into the wrapping sleeve (200) and abuts against the side of the reinforcing rod (400) facing away from the side baffle (100).

2. The culvert foundation pit support and reinforcement device according to claim 1, characterized in that, The docking structure (110) includes a vertical extension (112) and a vertical fold (113). The vertical extension (112) is vertically connected to the front and rear sides of the side baffle (100). The vertical fold (113) is vertically connected to the end of the vertical extension (112) away from the side baffle (100). The vertical folds (113) on the front and rear sides of the same side baffle (100) extend towards each other. The side baffle (100), the vertical extension (112), and the vertical fold (113) define a locking groove (111).

3. The culvert foundation pit support and reinforcement device according to claim 2, characterized in that, The package docking sleeve (200) includes a vertical plate (220), and the front and rear sides of the vertical plate (220) are provided with side packaging portions (230). The embedded protrusion (210) is provided at the end of the side packaging portion (230) away from the vertical plate (220).

4. The culvert foundation pit support and reinforcement device according to claim 3, characterized in that, The thickness of the embedded protrusion (210) is less than that of the slot (111); the distance between the embedded protrusion (210) and the vertical plate (220) is greater than that of the vertical fold (113).

5. The culvert foundation pit support and reinforcement device according to claim 4, characterized in that, The vertical plate (220) is provided with a first threaded hole (221), and a first pre-tightening screw (222) is threadedly connected to the first threaded hole (221). The end of the first pre-tightening screw (222) abuts against the two corresponding mating structures (110).

6. The culvert foundation pit support and reinforcement device according to claim 3, characterized in that, The bottom connecting rod (300) has vertical end connecting plates (310) at both ends. The end connecting plates (310) and the vertical plate (220) have corresponding holes for connection and fixation by fasteners.

7. The culvert foundation pit support and reinforcement device according to claim 6, characterized in that, A reinforcing rib plate (320) is provided between the bottom connecting rod (300) and the end connecting plate (310).

8. The culvert foundation pit support and reinforcement device according to claim 1, characterized in that, The reinforcing rod (400) is a cross-shaped rod. The front and rear sides of the wrapping sleeve (200) are provided with connecting blocks (240) spaced vertically. The connecting block (240) is provided with a second threaded hole (241). The tightening screw (500) is threaded into the second threaded hole (241). The tightening screw (500) abuts against the end of the connecting rod.

9. The culvert foundation pit support and reinforcement device according to claim 8, characterized in that, The end of the connecting rod is provided with a positioning groove (410), and the end of the tightening screw (500) is embedded in the positioning groove (410).

10. The culvert foundation pit support and reinforcement device according to claim 1, characterized in that, The upper end of the package docking sleeve (200) is provided with a horizontally extending top plate (250), and the top plate (250) is provided with anchoring holes (251).

Images