Cement culvert pipe convenient to connect

Abstract

The cement culvert pipe convenient to connect comprises a plurality of first culvert pipes and a plurality of second culvert pipes which are connected end to end, annular grooves are formed in the ends of the first culvert pipes, and a plurality of clamping blocks distributed in an annular array are fixedly connected to the groove walls, close to the centers of the first culvert pipes, of the annular grooves. A clamping groove matched with the clamping block in shape is formed in the second culvert pipe, an arc-shaped rod is fixedly connected into the clamping groove, and an arc-shaped through groove allowing the arc-shaped rod to penetrate through is formed in the clamping block. According to the utility model, the first culvert pipe is rotated in the gap between the clamping block and the clamping groove along the arrangement direction of the arc-shaped rods, so that the arc-shaped rods penetrate through the arc-shaped through grooves in the clamping block, cement mortar is poured into the annular groove and the clamping groove through the through holes, and the cement mortar flows between the two culvert pipes, so that the two culvert pipe main bodies can be connected together; rapid connection of the culvert pipes is achieved, and the connection strength of the two culvert pipes is improved.

Description

Technical Field

[0001] This utility model relates to the field of cement pipe splicing technology, and in particular to a cement culvert pipe that is easy to connect. Background Technology

[0002] Cement pipes are pipes buried underground, made of reinforced concrete. They are used as water diversion pipelines under cofferdams and embankments, and as water transmission pipelines under normal circumstances. Most cities in my country use cement pipes as culverts for water supply and drainage. During the construction of cement culverts, it is necessary to splice the cement culverts together. After splicing, the pipes are easily subjected to external forces and relative displacement occurs, which makes the sealing cement mortar at the splice of the outer wall of the pipe prone to cracking, which brings certain adverse effects to people's use. Utility Model Content

[0003] The purpose of this utility model is to provide a cement culvert that is easy to connect in order to solve the technical problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A type of easily connected cement culvert includes several first culverts and second culverts connected end to end. The first culvert has an annular groove at its end. Several locking blocks arranged in a circular array are fixedly connected to the groove wall near the center of the first culvert. The second culvert has a locking groove adapted to the shape of the locking blocks. An arc-shaped rod is fixedly connected in the locking groove. An arc-shaped through groove is opened on the locking block to accommodate the arc-shaped rod. The first culvert has a first through hole communicating with the annular groove. The second culvert has a second through hole communicating with the locking groove.

[0006] As a further description of the above technical solution:

[0007] The end of the first culvert is fixedly connected to a convex ring that transitions with the second culvert. The groove wall of the annular groove away from the center of the first culvert and the outer wall of the second culvert, as well as the outer wall of the convex ring and the inner wall of the second culvert, are all fitted with several sealing rings with an interference fit.

[0008] As a further description of the above technical solution:

[0009] The annular groove is located away from the center of the first culvert. Sealing grooves for accommodating sealing rings are also provided on the outer wall of the second culvert, the outer wall of the convex ring, and the inner wall of the second culvert.

[0010] As a further description of the above technical solution:

[0011] The end face of the card block is in contact with the end face of the second culvert.

[0012] As a further description of the above technical solution:

[0013] The first through hole is located between two adjacent sets of card blocks, and is located close to one of the sets of card blocks.

[0014] As a further description of the above technical solution:

[0015] The second through hole is located on the slot away from the arc-shaped rod.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0017] 1. In this utility model, the gap between the locking block and the locking groove is filled. Then, the first culvert is rotated along the arrangement direction of the arc-shaped rod, so that the arc-shaped rod passes through the arc-shaped through groove on the locking block. At the same time, the two sets of through holes are aligned. Then, cement mortar is injected into the annular groove and the locking groove through the through holes, so that the cement mortar flows between the two culverts. In this way, the two culvert bodies can be connected together, realizing the rapid connection of the culverts. At the same time, the locking block and the arc-shaped rod wrap around the connection of the two culverts, making the cement mortar less prone to breakage and improving the connection strength of the two sets of culverts.

[0018] 2. In this utility model, the sealing ring can improve the sealing performance between two cement culverts and ensure the normal use of the cement culverts. Attached Figure Description

[0019] Figure 1 A schematic diagram of the connection structure of the first culvert and the second culvert according to an embodiment of the present utility model is shown.

[0020] Figure 2 A partial cross-sectional schematic view of the connection between the first culvert and the second culvert according to an embodiment of the present invention is shown.

[0021] Figure 3 A schematic diagram of the structure of a first culvert according to an embodiment of the present invention is shown;

[0022] Figure 4 It shows Figure 3 Enlarged view of point A in the middle;

[0023] Figure 5 A schematic diagram of the structure of the second culvert provided according to an embodiment of the present invention is shown;

[0024] Figure 6 It shows Figure 5 Enlarged diagram of point B in the middle.

[0025] Legend:

[0026] 1. First culvert; 101. First through hole; 102. Annular groove; 11. Locking block; 1101. Arc-shaped through groove; 12. Protruding ring; 2. Second culvert; 201. Second through hole; 202. Locking groove; 21. Arc-shaped rod; 3. Sealing ring; 4. Sealing groove. Detailed Implementation

[0027] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-6 This utility model provides a technical solution: a cement culvert pipe that is easy to connect, including several first culvert pipes 1 and second culvert pipes 2 connected end to end. The first culvert pipe 1 has an annular groove 102 at its end. Several locking blocks 11 arranged in a ring array are fixedly connected to the groove wall of the annular groove 102 near the center of the first culvert pipe 1. The end face of the locking block 11 contacts the end face of the second culvert pipe 2. The second culvert pipe 2 has a locking groove 202 that matches the shape of the locking block 11. An arc-shaped rod 21 is fixedly connected in the locking groove 202. The locking block 11 has an arc-shaped through groove 1101 that accommodates the arc-shaped rod 21. The first culvert pipe 1 has a first through hole 101 that communicates with the annular groove 102. The second culvert pipe 2 has a second through hole 201 that communicates with the locking groove 202. The first through hole 101 is located between two adjacent sets of locking blocks 11 and is located close to one of the sets of locking blocks 11. The second through hole 201 is located on the locking groove 202 away from the arc-shaped rod 21. The gap between the locking block 11 and the slot 202 is then filled. The first culvert 1 is rotated along the arrangement direction of the arc rod 21, so that the arc rod 21 passes through the arc through groove 1101 on the locking block 11. At the same time, the two sets of through holes are aligned. Then, cement mortar is injected into the annular groove 102 and the slot 202 through the through holes, so that the cement mortar flows between the two culverts. In this way, the two culvert bodies can be connected together, realizing the rapid connection of the culverts. At the same time, the locking block 11 and the arc rod 21 wrap around the connection of the two culverts, making the cement mortar less prone to breakage, thereby improving the connection strength of the two sets of culverts.

[0029] Specifically, such as Figure 3-6As shown, a convex ring 12 that transitions with the second culvert 2 is fixedly connected to the end of the first culvert 1. Several sealing rings 3 are interference-fitted between the groove wall of the annular groove 102 away from the center of the first culvert 1 and the outer wall of the second culvert 2, as well as between the outer wall of the convex ring 12 and the inner wall of the second culvert 2. Sealing grooves 4 for accommodating the sealing rings 3 are opened on the groove wall of the annular groove 102 away from the center of the first culvert 1, the outer wall of the second culvert 2, the outer wall of the convex ring 12, and the inner wall of the second culvert 2. The sealing rings 3 can improve the sealing performance between the two cement culverts and ensure the normal use of the cement culverts.

[0030] Working principle: In use, the gap between the locking block 11 and the slot 202 is filled, and then the first culvert 1 is rotated along the arrangement direction of the arc rod 21, so that the arc rod 21 passes through the arc through groove 1101 on the locking block 11. At the same time, the two sets of through holes are aligned. Then, cement mortar is injected into the annular groove 102 and the slot 202 through the through holes, so that the cement mortar flows between the two culverts. In this way, the two culvert bodies can be connected together, realizing the rapid connection of the culverts. At the same time, the locking block 11 and the arc rod 21 wrap around the connection of the two culverts, making the cement mortar less prone to breakage and improving the connection strength of the two sets of culverts.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cement culvert pipe that is easy to connect, comprising a plurality of first culvert pipes (1) and second culvert pipes (2) connected end to end, characterized in that, The first culvert (1) has an annular groove (102) at its end. Several locking blocks (11) arranged in an annular array are fixedly connected to the groove wall of the annular groove (102) near the center of the first culvert (1). The second culvert (2) has a locking groove (202) that matches the shape of the locking block (11). An arc rod (21) is fixedly connected in the locking groove (202). The locking block (11) has an arc-shaped through groove (1101) that accommodates the arc rod (21) to pass through. The first culvert (1) has a first through hole (101) that communicates with the annular groove (102). The second culvert (2) has a second through hole (201) that communicates with the locking groove (202).

2. The easily connectable cement culvert pipe according to claim 1, characterized in that, The end of the first culvert (1) is fixedly connected to a convex ring (12) that transitions with the second culvert (2). The annular groove (102) away from the center of the first culvert (1) and the outer wall of the second culvert (2), as well as the outer wall of the convex ring (12) and the inner wall of the second culvert (2), are all fitted with several sealing rings (3).

3. A cement culvert pipe that is easy to connect according to claim 2, characterized in that, The annular groove (102) is located away from the center of the first culvert (1), and the outer wall of the second culvert (2), the outer wall of the convex ring (12), and the inner wall of the second culvert (2) are all provided with sealing grooves (4) to accommodate the sealing ring (3).

4. A cement culvert pipe that is easy to connect according to claim 3, characterized in that, The end face of the card block (11) is in contact with the end face of the second culvert (2).

5. A cement culvert pipe that is easy to connect according to claim 4, characterized in that, The first through hole (101) is located between two adjacent sets of card blocks (11) and is located close to one of the sets of card blocks (11).

6. A cement culvert pipe for easy connection according to claim 5, characterized in that, The second through hole (201) is located on the slot (202) away from the arc-shaped rod (21).

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