Round pipe culvert mortar troweling construction device
By using mold tape made of elastic rubber material and combined with fixing devices of beveled cone and beveled groove structure, the problem that the mold tape cannot fit effectively with the pipe in the prior art is solved, which improves construction efficiency and reduces costs.
Patent Information
- Application Number
- CN202421892232.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-07
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-08-07
AI Technical Summary
The mold belts of the existing round pipe culvert mortar plaster construction device cannot effectively fit the pipeline due to material reasons, which affects the construction efficiency and is also highly cost-effective in mold making.
The mold tape is made of elastic rubber material and ensures that the mold tape is in close contact with the pipe through fixing devices with beveled cones and beveled groove structures.
The tight fit between the mold belt and the pipe is achieved, the construction efficiency is improved, and the mold production cost is reduced.
Smart Images

Figure CN222948994U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of circular pipe culverts, in particular to a circular pipe culvert mortar strip construction device. Background Art
[0002] During the construction of circular culverts, in order to cope with the deformation and displacement caused by foundation settlement, a special design and construction method is adopted to set a settlement joint every 3 to 5 meters in the entire length of the culvert. After the pipeline is laid, mortar is poured into the gap for sealing. In order to ensure the thickness and width of the mortar, people often use circular culvert mortar tape construction devices to limit the mortar tape.
[0003] The existing circular culvert mortar tape construction device places mold tapes on both sides of the circular culvert gap (the two mold tapes are at the same distance from the circular culvert gap), and then uses a mold tape fixing device to fix the grounding point of the mortar tape to fix the position of the mold tape to prevent the mold tape from being displaced due to vibration during the mortar application process.
[0004] Most existing mold strip materials are made of steel molds, which have limited elasticity and toughness. When facing a circular pipe, the template cannot effectively fit the pipe, thereby affecting the construction efficiency of the mortar. In addition, the steel mold needs to be specially made, which greatly increases the cost. Utility Model Content
[0005] The technical problem to be solved by the utility model is that the mold belt of the existing circular culvert mortar tape construction device cannot be effectively fitted with the pipeline due to material reasons, thereby affecting the work efficiency, and the template production cost is expensive.
[0006] In order to solve the above technical problems, the technical solution provided by the utility model is: a circular culvert mortar belt construction device, including mold belts located on both sides of the circular culvert gap and mold belt fixing devices located on the head and tail sides of the mold belt, the mold belt material is elastic rubber material, and the mold belt is connected to the outer wall of the pipeline through body contact.
[0007] As an improvement, the mold belt fixing device includes a head end fixing device and a tail end fixing device.
[0008] As an improvement, the tail fixing device and the head end fixing device are both provided with a bevel cone inside, and the tail fixing device and the head end fixing device are both provided with a bevel groove corresponding to the bevel cone inside, and the bevel cone is connected to the inner wall of the bevel groove through a pin rod, and the bevel cone and the bevel groove are both provided with a movable slide groove corresponding to the pin rod, and the bevel cone and the movable slide groove inside the bevel groove are perpendicular to each other.
[0009] As an improvement, the head and tail ends of the mold belt pass through the interior of the head end fixing device and the tail fixing device respectively, and an L-shaped fixing plate for fixing the mold belt is provided above the mold belt. The L-shaped fixing plate is connected to the side walls of the head end fixing device and the tail fixing device through a pin structure, and the L-shaped fixing plate is connected to the outer wall of the mold belt through body contact.
[0010] As an improvement, a storage groove for storing the extra-long portion of the mold belt is provided inside the head end fixing device.
[0011] As an improvement, the two tail fixing devices and the two head end fixing devices are connected by a screw rod, and a clamping block for clamping is provided inside the screw rod.
[0012] Compared with the prior art, the utility model has the following advantages: the mold belt of the device adopts elastic rubber material, so that it can fit closely with the pipeline when it is bent, and compared with the original steel mold, it saves the template cost and greatly improves the working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 The utility model discloses a general structural diagram of a circular pipe culvert mortar strip construction device.
[0014] Figure 2 The utility model is a general structural sectional view of a circular pipe culvert mortar strip construction device.
[0015] Figure 3 The utility model discloses a structural diagram of a head end fixing device of a circular pipe culvert mortar strip construction device.
[0016] Figure 4 The utility model discloses a tail fixing device structure diagram of a circular pipe culvert mortar strip construction device.
[0017] Explanation of the reference numerals: 1. mold belt; 2. mold belt fixing device; 21. head end fixing device; 211. inclined cone; 212. inclined groove; 213. pin rod; 214. movable slide groove; 215. L-shaped fixing plate; 216. storage groove; 22. tail fixing device; 3. screw rod; 31. clamping block. DETAILED DESCRIPTION
[0018] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0019] As the instruction manual Figure 1 , 2As shown in , 3 and 4, it includes a mold belt 1 located on both sides of the gap of the circular pipe culvert and a mold belt fixing device 2 located on the front and rear sides of the mold belt 1, the mold belt fixing device 2 includes a head end fixing device 21 and a tail fixing device 22, the head and tail ends of the mold belt 1 pass through the interior of the head end fixing device 21 and the tail fixing device 22 respectively, and an L-shaped fixing plate 215 for fixing the mold belt 1 is provided above the mold belt 1, the L-shaped fixing plate 215 is connected to the side walls of the head end fixing device 21 and the tail fixing device 22 through a pin structure, the L-shaped fixing plate 215 is connected to the outer wall of the mold belt 1 through body contact, the mold belt 1 is inserted into the internal grooves of the head end fixing device 21 and the tail fixing device 22, and the L-shaped fixing plate 215 is rotated to rotate around the pin, so that the short plate part of the L-shaped fixing plate 215 is pressed tightly against the mold belt 1, thereby ensuring that the mold belt 1 will not loosen.
[0020] The mold belt 1 is made of elastic rubber material, and is connected to the outer wall of the pipe through body contact. Since the mold belt 1 is made of elastic rubber material, its bending curvature can be adjusted at any time according to actual conditions to match the size of the circular culvert.
[0021] The two tail fixing devices 22 and the two head fixing devices 21 are connected by a screw 3, and a clamping block 31 for clamping is provided inside the screw 3. By rotating the screw 3, the distance between the two mold belts 1 can be synchronously adjusted to adapt to different gap sizes.
[0022] The interior of the head end fixing device 21 is provided with a storage groove 216 for storing the extra-long portion of the mold belt 1. In order to ensure that the length of the mold belt 1 does not exceed the effective diameter of the circular culvert, the extra-long portion is pulled out and placed in the storage groove 216 for storage, and then the L-shaped fixing plate 215 is rotated to fix it, thereby ensuring that the effective length of the mold belt 1 matches the effective diameter of the circular culvert.
[0023] The tail fixing device 22 and the head end fixing device 21 are both provided with a bevel cone 211 inside, and the tail fixing device 22 and the head end fixing device 21 are both provided with a bevel groove 212 corresponding to the bevel cone 211 inside, and the bevel cone 211 is connected to the inner wall of the bevel groove 212 through a pin rod 213, and the bevel cone 211 and the bevel groove 212 are both provided with a movable slide groove 214 corresponding to the pin rod 213 inside, and the bevel cone 211 and the movable slide groove 214 inside the bevel groove 212 are perpendicular to each other. After the mold belt 1 connected with the tail fixing device 22 and the head end fixing device 21 is placed on the side wall of the circular culvert, the bevel cone 211 is knocked to make the bevel cone 211 vertically pass through the vertical movable slide groove 214. It moves straight downward and is inserted into the bottom surface to fix the position of the inclined cone 211. During the downward movement of the inclined cone 211, the inclined surface of the inclined cone 211 pushes the inclined surface of the inclined groove 212 to move toward the inner side (the inclined cone 211 is knocked vertically into the ground, so the inclined groove 212 is pushed, and because the movable slide groove 214 in the inclined groove 212 is in the same direction as the inclined surface of the inclined groove 212, the pin rod 213 in the movable slide groove 214 pushes the inclined groove 212 to move horizontally), so that the tail fixing device 22 or the head end fixing device 21 where the inclined groove 212 is located is translated inward as a whole, ensuring that the tail fixing device 22 and the head end fixing device 21 press the mold belt 1 against the outer wall of the circular culvert to ensure the thickness and width of the mortar coating.
[0024] In the specific implementation of the utility model, the mold belt 1 in the storage groove 216 is tightened to make the effective length of the mold belt 1 match the effective diameter of the round pipe culvert, and the clamping block 31 is clamped by a tool such as a wrench, and the clamping block 31 is rotated to adjust the distance between the two mold belts 1, and the two mold belts 1 are placed on the outer wall of the round pipe culvert with the gap of the round pipe culvert as the center, and the mold belt 1 is pressed downward to be fixed on the outer wall of the round pipe culvert tightly without gaps, and the tail fixing device 22 is placed on the ground, and the tail fixing device 22 is placed on the ground. The connecting end of the fixing device 22 and the mold belt 1 is pressed against the outer wall of the circular culvert, and the inclined cone 211 is hit with a hammer to fix the tail fixing device 22 on the ground while the tail fixing device 22 presses the connecting end of the mold belt 1 against the outer wall of the circular culvert to avoid gaps at the connection position, thereby affecting the construction efficiency. Similarly, after tightening the mold belt 1, the connecting end of the head end fixing device 21 and the mold belt 1 is pressed against the circular culvert to ensure that no gaps will appear on the connecting surface of the mold belt 1 and the pipeline.
[0025] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.
Claims
1. A circular culvert mortar strip construction device, comprising a mold strip (1) located on both sides of a circular culvert gap and a mold strip fixing device (2) located on both sides of the mold strip (1), characterized in that: The mold belt (1) is made of elastic rubber material, and the mold belt (1) is connected to the outer wall of the pipeline through body contact.
2. A circular pipe culvert mortar tape construction device according to claim 1, characterized in that: The mold belt fixing device (2) comprises a head end fixing device (21) and a tail end fixing device (22).
3. A circular pipe culvert mortar tape construction device according to claim 2, characterized in that: The tail fixing device (22) and the head fixing device (21) are both provided with an inclined cone (211) inside, and the tail fixing device (22) and the head fixing device (21) are both provided with an inclined groove (212) corresponding to the inclined cone (211) inside, and the inclined cone (211) is connected to the inner wall of the inclined groove (212) via a pin rod (213), and the inclined cone (211) and the inclined groove (212) are both provided with a movable slide groove (214) corresponding to the pin rod (213), and the movable slide groove (214) inside the inclined cone (211) and the inclined groove (212) are perpendicular to each other.
4. A circular pipe culvert mortar tape construction device according to claim 3, characterized in that: The head and tail ends of the mold belt (1) pass through the interior of the head end fixing device (21) and the tail fixing device (22) respectively; an L-shaped fixing plate (215) for fixing the mold belt (1) is provided above the mold belt (1); the L-shaped fixing plate (215) is connected to the side walls of the head end fixing device (21) and the tail fixing device (22) via a pin structure; and the L-shaped fixing plate (215) is connected to the outer wall of the mold belt (1) via body contact.
5. A circular pipe culvert mortar tape construction device according to claim 4, characterized in that: A storage groove (216) for storing the extra-long portion of the mold belt (1) is provided inside the head end fixing device (21).
6. A circular pipe culvert mortar tape construction device according to claim 2, characterized in that: The two tail fixing devices (22) and the two head fixing devices (21) are connected via a screw rod (3), and a clamping block (31) for clamping is provided inside the screw rod (3).