An assembled concrete prefabricated box culvert for municipal engineering

Abstract

This utility model relates to the field of precast box culverts and discloses a precast concrete box culvert for municipal engineering, comprising a first box body, a second box body, and a waterproofing mechanism. Positioning grooves are provided at the edges of the front outer walls of both the first and second box bodies. Positioning blocks are fixedly connected to the edges of the rear outer walls of both the first and second box bodies. Partitions are fixedly connected to the middle of the inner top and bottom surfaces of both the first and second box bodies. Through holes are provided near the four corners of the front outer walls of both the first and second box bodies. Compared with most existing precast concrete components, this utility model seals the connection between the positioning grooves and positioning blocks with a first rubber strip and seals the connection between the first and second box bodies from the outer wall with a waterproofing mechanism, preventing external water from seeping in through the box body joints, thereby improving the sealing performance of the box body.

Description

Technical Field

[0001] This utility model relates to the field of precast box culverts, and in particular to a precast concrete box culvert for municipal engineering. Background Technology

[0002] Precast components are structural parts that are prefabricated in a factory, transported to the construction site, and then assembled. Concrete has high compressive strength and low material cost, so it is easy to use as a common raw material for precast components. Box culverts are closed box-shaped passage structures made of reinforced concrete. Precast box culverts have strong overall structure and good waterproof performance, and are often used in urban underground integrated pipe corridors, pedestrian crossings, and water conservancy and flood control projects.

[0003] An existing patent (publication number: CN202121124502.7) discloses a prefabricated box culvert with a chute, including a box culvert body. The four corners of the box culvert body are provided with inner chamfers, and the inner chamfers are uniformly provided with reserved light grooves for installing lighting lamps. Multiple load-bearing grooves are uniformly provided on both sides of the box culvert body, and the load-bearing grooves are filled with stainless steel blocks. In the process of realizing this utility model, the inventor found that the existing technology has the following problems: the box culvert does not have a waterproof structure. When connecting the boxes, the external water is easy to seep into the box body due to insufficient sealing performance, which will affect the performance of the box body.

[0004] Therefore, those skilled in the art provide a precast concrete box culvert for municipal engineering to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a prefabricated concrete box culvert for municipal engineering. Compared with traditional prefabricated concrete components, this prefabricated concrete component is equipped with lifting holes, allowing the box components to be safely lifted to designated positions, facilitating the assembly process on construction sites. Simultaneously, through the cooperation of positioning grooves and positioning blocks on the two boxes, and the cooperation of sliding grooves and sliding blocks, the first and second boxes can be quickly aligned during assembly. Furthermore, a first rubber strip seals the connection between the positioning grooves and positioning blocks, and a waterproof mechanism seals the connection between the first and second boxes from the outer wall, preventing external water from seeping in through the box joints, thereby improving the sealing performance of the box.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A precast concrete box culvert for municipal engineering includes a first box body, a second box body, and a waterproofing mechanism. Positioning grooves are provided at the edges of the front outer walls of both the first and second box bodies. Positioning blocks are fixedly connected to the edges of the rear outer walls of both the first and second box bodies. Partitions are fixedly connected to the middle of the inner top and bottom surfaces of both the first and second box bodies. Through holes are provided at the four corners of the front outer walls of both the first and second box bodies. Installation grooves are provided at the upper and lower ends of the middle of the inner walls on both sides of both the first and second box bodies. A screw is provided on the inner wall of each through hole, and nuts are threadedly connected to both ends of the screw.

[0008] The waterproofing mechanism includes a waterproofing plate and bolts. Multiple second rubber strips are fixedly connected to the inner wall of the waterproofing plate. Waterproof grooves are provided at the front and rear edges of the outer walls of the first and second boxes. Multiple first threaded holes are provided near the edges of the front and rear edges of the outer walls of the first and second boxes. Multiple second threaded holes are provided at the front and rear edges of the outer wall of the waterproofing plate.

[0009] Through the above technical solution, the precast concrete component can be quickly positioned during assembly by the cooperation of positioning groove and positioning block, and sliding groove and sliding block. The waterproof mechanism can be set to seal the connection of the box to prevent water from seeping into the box and affecting it.

[0010] Furthermore, the first box and the second box have the same shape and structure, and the middle of the upper surface of the first box and the second box are fixedly connected with lifting holes.

[0011] The above technical solution provides hoisting holes to facilitate the hoisting and transportation of the container, which in turn facilitates on-site assembly and construction.

[0012] Furthermore, the positioning groove and the positioning block are matched one-to-one, and the inner wall of the positioning groove is fixedly connected with a first rubber strip;

[0013] The above technical solution facilitates the alignment of the boxes during assembly by using the positioning groove and positioning block. After the boxes are aligned, the positioning block squeezes the first rubber strip to seal the joint.

[0014] Furthermore, each of the partitions has a sliding groove on its front outer wall and a slider is fixedly connected to its rear outer wall, with the sliding groove and the slider corresponding to each other.

[0015] The above technical solution also facilitates the alignment of the box body by matching the slider and the groove, thereby improving assembly efficiency.

[0016] Furthermore, the waterproof membrane is disposed at the connection between the first box and the second box, and the waterproof membrane is fixed to the second box by bolts;

[0017] Through the above technical solution, the waterproof membrane is fixed to the box body with bolts, thereby sealing the connection of the box body.

[0018] Furthermore, the bolt and the first threaded hole correspond one-to-one with the second threaded hole, and the bolt passes through the first threaded hole and the second threaded hole;

[0019] The above technical solution provides a threaded hole to facilitate the use of bolts to fix the waterproof membrane and the box body.

[0020] Furthermore, the second rubber strip and the waterproof groove correspond one-to-one;

[0021] With the above technical solution, after the waterproof membrane is fixed, the second rubber strip on the inner wall of the waterproof membrane squeezes the waterproof groove, thereby sealing the area around the waterproof groove and sealing the connection between the two boxes.

[0022] Furthermore, both ends of the screw pass through through holes and fit tightly against the inner wall of the mounting groove;

[0023] The above technical solution uses screws to connect the housing, thereby ensuring the stability of the housing connection.

[0024] This utility model has the following beneficial effects:

[0025] 1. The present invention proposes a prefabricated concrete box culvert for municipal engineering. Compared with most existing prefabricated concrete components, this prefabricated concrete component has a lifting hole, which allows the box component to be safely lifted to the designated position, facilitating the assembly process on the construction site. At the same time, through the cooperation of positioning grooves and positioning blocks on the two boxes, as well as the cooperation of sliding grooves and sliding blocks, the first box and the second box can be quickly aligned during assembly, thereby reducing the construction difficulty and improving the construction efficiency.

[0026] 2. The present invention proposes a prefabricated concrete box culvert for municipal engineering. Compared with most existing prefabricated concrete components, this prefabricated concrete component seals the connection between the positioning groove and the positioning block with a first rubber strip, and seals the connection between the first box and the second box from the outer wall with a waterproof mechanism, thereby preventing external water from seeping in from the box joints and improving the sealing performance of the box. Attached Figure Description

[0027] Figure 1 This is a structural schematic diagram of a precast concrete box culvert for municipal engineering proposed in this utility model;

[0028] Figure 2 This is a schematic diagram of the box structure of a precast concrete box culvert for municipal engineering proposed in this utility model.

[0029] Figure 3 This is a structural schematic diagram of a waterproofing mechanism in a precast concrete box culvert for municipal engineering proposed in this utility model.

[0030] Figure 4 This is a structural schematic diagram of the second box body in a precast concrete box culvert for municipal engineering proposed in this utility model;

[0031] Figure 5 This utility model proposes a precast concrete box culvert for municipal engineering. Figure 1 A magnified structural diagram at point A.

[0032] Legend:

[0033] 1. First housing; 2. Second housing; 3. Through hole; 4. Screw; 5. Nut; 6. Lifting hole; 7. Positioning groove; 8. Positioning block; 9. First rubber strip; 10. Partition plate; 11. Slide groove; 12. Sliding block;

[0034] 13. Waterproofing mechanism; 1301. Second rubber strip; 1302. Waterproof membrane; 1303. First threaded hole; 1304. Second threaded hole; 1305. Bolt; 1306. Waterproof groove;

[0035] 14. Mounting slot. Detailed Implementation

[0036] 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.

[0037] One embodiment of this utility model is provided:

[0038] Reference Figure 1 , Figure 2 and Figure 3 :

[0039] A precast concrete box culvert for municipal engineering includes a first box body 1, a second box body 2, and a waterproofing mechanism 13. Positioning grooves 7 are provided at the edges of the front outer walls of the first box body 1 and the second box body 2. Positioning blocks 8 are fixedly connected to the edges of the rear outer walls of the first box body 1 and the second box body 2. Partitions 10 are fixedly connected to the middle of the inner top and inner bottom surfaces of the first box body 1 and the second box body 2. Through holes 3 are provided at the four corners of the front outer walls of the first box body 1 and the second box body 2. Installation grooves 14 are provided at the upper and lower ends of the middle of the inner walls on both sides of the first box body 1 and the second box body 2. A screw 4 is provided on the inner wall of the through hole 3. Nuts 5 are threadedly connected to both ends of the screw 4.

[0040] The waterproofing mechanism 13 includes a waterproofing plate 1302 and bolts 1305. Multiple second rubber strips 1301 are fixedly connected to the inner wall of the waterproofing plate 1302. Waterproof grooves 1306 are provided at the edges of the front and rear ends of the outer walls of the first box 1 and the second box 2. Multiple first threaded holes 1303 are provided near the edges of the front and rear ends of the outer walls of the first box 1 and the second box 2. Multiple second threaded holes 1304 are provided at the front and rear ends of the outer wall of the waterproofing plate 1302.

[0041] The precast concrete components facilitate quick positioning of the box during assembly through the cooperation of positioning groove 7 and positioning block 8, and sliding groove 11 and sliding block 12. The waterproof mechanism 13 seals the joints of the box to prevent water from seeping into the box and affecting it.

[0042] Reference Figure 1 , Figure 2 and Figure 5 :

[0043] The first box 1 and the second box 2 have the same shape and structure. The middle of the upper surface of the first box 1 and the second box 2 are fixedly connected with lifting holes 6. The lifting holes 6 facilitate the lifting and transportation of the boxes and facilitate on-site assembly. The positioning groove 7 and the positioning block 8 are matched one by one. The inner wall of the positioning groove 7 is fixedly connected with the first rubber strip 9. The matching of the positioning groove 7 and the positioning block 8 facilitates the alignment between the boxes during assembly. After the boxes are aligned, the positioning block 8 squeezes the first rubber strip 9 to seal the joint. The front outer wall of the partition 10 is provided with a sliding groove 11. The rear outer wall of the partition 10 is fixedly connected with a slider 12. The sliding groove 11 and the slider 12 are matched one by one. The matching of the slider 12 and the sliding groove 11 also facilitates the alignment of the boxes, thereby improving the assembly efficiency.

[0044] Reference Figure 2 , Figure 3 and Figure 4 :

[0045] A waterproof membrane 1302 is installed at the connection between the first housing 1 and the second housing 2. The waterproof membrane 1302 is fixed to the first housing 1 and the second housing 2 by bolts 1305. The waterproof membrane 1302 is fixed to the housing by bolts 1305, thereby sealing the connection between the housings. Bolts 1305 correspond one-to-one with the first threaded hole 1303 and the second threaded hole 1304. Bolts 1305 pass through the first threaded hole 1303 and the second threaded hole 1304 to fix the waterproof membrane 1302 and the housing. The threaded holes facilitate the bolts 1305. 305. The waterproof plate 1302 and the box body are fixed. The second rubber strip 1301 and the waterproof groove 1306 correspond one-to-one. The box body is further waterproofed and sealed by the second rubber strip 1301. After the waterproof plate 1302 is fixed, the second rubber strip 1301 on the inner wall of the waterproof plate 1302 squeezes the waterproof groove 1306, thereby sealing the area around the waterproof groove 1306 and sealing the connection between the two boxes. Both ends of the screw 4 pass through the through hole 3 and fit tightly against the inner wall of the mounting groove 14, thereby ensuring the stability of the box body connection.

[0046] Working principle: Workers transport the first box 1 and the second box 2 to the designated position through the lifting hole 6 at the construction site. Guided by the positioning groove 7 and positioning block 8, and the sliding groove 11 and slider 12, the first box 1 and the second box 2 are quickly aligned, thereby improving the speed and efficiency of box assembly. During assembly, the positioning block 8 enters the positioning groove 7, compressing the first rubber strip 9 to seal the joint. After the two boxes are aligned, the screw 4 is passed through the through hole 3 to assemble the boxes. The screw 4 is fixed in place by mounting pads and nuts 5 on both sides of the screw 4 through the mounting groove 14, thereby ensuring the stability of the box. The waterproof mechanism 13 is then installed, and the waterproof plate 1302 is installed at the connection between the two boxes. The first threaded hole 1303 and the second threaded hole 1304 are matched, and the bolt 1305 is screwed in, thereby fixing the waterproof plate 1302 to the box. The second rubber strip 1301 on the waterproof plate 1302 enters the waterproof groove 1306 and squeezes the waterproof groove 1306, thereby further sealing the box.

[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A precast concrete box culvert for municipal engineering, comprising a first box body (1), a second box body (2), and a waterproofing mechanism (13), characterized in that: Positioning grooves (7) are provided at the edges of the front outer walls of the first box (1) and the second box (2). Positioning blocks (8) are fixedly connected at the edges of the rear outer walls of the first box (1) and the second box (2). Partitions (10) are fixedly connected at the middle of the inner top and inner bottom surfaces of the first box (1) and the second box (2). Through holes (3) are provided at the four corners of the front outer walls of the first box (1) and the second box (2). Mounting grooves (14) are provided at the upper and lower ends of the middle of the inner walls on both sides of the first box (1) and the second box (2). A screw (4) is provided on the inner wall of the through hole (3). Nuts (5) are threadedly connected to both ends of the screw (4). The waterproof mechanism (13) includes a waterproof plate (1302) and bolts (1305). The inner wall of the waterproof plate (1302) is fixedly connected with a plurality of second rubber strips (1301). Waterproof grooves (1306) are provided at the edges of the front and rear ends of the outer walls of the first box (1) and the second box (2). A plurality of first threaded holes (1303) are provided at the edges of the front and rear ends of the outer walls of the first box (1) and the second box (2). A plurality of second threaded holes (1304) are provided at the front and rear ends of the outer wall of the waterproof plate (1302).

2. The precast concrete box culvert for municipal engineering as described in claim 1, characterized in that: The first box (1) and the second box (2) have the same shape and structure. The middle part of the upper surface of the first box (1) and the second box (2) are fixedly connected with a hoisting hole (6).

3. A precast concrete box culvert for municipal engineering as described in claim 1, characterized in that: The positioning groove (7) and the positioning block (8) are matched one to one, and the inner wall of the positioning groove (7) is fixedly connected with the first rubber strip (9).

4. A precast concrete box culvert for municipal engineering as described in claim 1, characterized in that: The front outer wall of each partition (10) is provided with a sliding groove (11), and the rear outer wall of each partition (10) is fixedly connected with a slider (12). The sliding groove (11) and the slider (12) are matched and correspond to each other.

5. A precast concrete box culvert for municipal engineering according to claim 1, characterized in that: The waterproof membrane (1302) is located at the connection between the first box (1) and the second box (2). The waterproof membrane (1302) is fixed to the second box (2) by bolts (1305) and the first box (1).

6. A precast concrete box culvert for municipal engineering according to claim 1, characterized in that: The bolt (1305) and the first threaded hole (1303) correspond one-to-one with the second threaded hole (1304), and the bolt (1305) passes through the first threaded hole (1303) and the second threaded hole (1304).

7. A precast concrete box culvert for municipal engineering as described in claim 1, characterized in that: The second rubber strip (1301) and the waterproof groove (1306) correspond one-to-one.

8. A precast concrete box culvert for municipal engineering according to claim 1, characterized in that: Both ends of the screw (4) pass through the through hole (3) and fit tightly against the inner wall of the mounting groove (14).

Images