Double-layer corrugated pipe capable of being externally stirred and vibrated
The double-layer corrugated pipe with external stirring and vibration mechanisms addresses incomplete grouting issues by rotating and vibrating the inner pipe, ensuring complete and uniform grouting for improved structural integrity.
Patent Information
- Application Number
- CN202420868145.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-04-25
AI Technical Summary
Existing prestressed duct grouting processes in prestressed plastic corrugated pipes are prone to incomplete grouting due to external factors, leading to structural performance issues.
A double-layer corrugated pipe design with external stirring and vibration capabilities, featuring an outer and inner corrugated pipe, end and tail anchor plates, grouting holes, and vibrating rods, facilitated by electric motors for uniform mixing and vibration during grouting.
Ensures complete and uniform grouting by rotating and vibrating the inner pipe to prevent hollow ducts, enhancing structural performance.
Smart Images
Figure CN222161752U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of corrugated pipes, in particular to a double-layer corrugated pipe capable of external stirring and vibration. Background Art
[0002] Prestressed plastic corrugated pipe is made of HDPE as raw material, and is mainly used in post-tensioned prestressed cement structures and the drilling of tension rods. It has the advantages of good sealing, no water seepage and leakage, high ring stiffness, small friction parameters, aging resistance, electrical corrosion resistance, good flexibility, not easy to be broken by tamping rods, and new connection methods that make construction connections more convenient. It is mainly used in the construction of large-span tensioning projects such as roads, railways, bridges, slopes, and high-rise buildings.
[0003] Existing projects mainly use post-tensioning method to tension prestressed steel strands. The technical essentials of post-tensioning method are mainly to wait until the hardening strength of the main structure concrete reaches the standard, then introduce the prestressed steel strands into the corrugated pipe and apply prestress through the jack, wait for the stress to stabilize for 48 hours, and then grout the prestressed duct to achieve the purpose of applying prestress to the structure. However, the grouting process of the prestressed duct is easily affected by external factors, resulting in incomplete grouting and cavitation of the duct, which seriously affects the performance of the structure. Although the existing technology improves the accuracy and efficiency of grouting by detecting and improving the grouting process during the grouting process, it still cannot completely avoid the occurrence of such phenomena.
[0004] Therefore, it is necessary to provide a double-layer corrugated pipe that can be externally stirred and vibrated to solve the above technical problems. Utility Model Content
[0005] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a double-layer corrugated pipe that can be externally stirred and vibrated to solve the problem that the existing prestressed duct grouting process is easily affected by external factors, resulting in incomplete grouting and hollow ducts, which seriously affects the performance of the structure.
[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:
[0007] A double-layer corrugated pipe capable of external stirring and vibration comprises: an outer corrugated pipe and an inner corrugated pipe;
[0008] An inner bellows is arranged inside the outer bellows, an end anchor plate is installed at the front end of the outer bellows, a tail anchor plate is installed at the rear end of the outer bellows, and a prestressed steel bundle reserved channel is opened at the center of the surface of the end anchor plate.
[0009] In one embodiment, the surfaces of the end anchor plate and the tail anchor plate facing the outer bellows and the inner bellows are provided with limit slots plugged therewith to fix the outer bellows and the inner bellows.
[0010] In one embodiment, inner grouting holes and inner and outer interlayer grouting holes are respectively opened on both sides of the prestressed steel bundle reserved channel of the end anchor plate, and the inner grouting holes and inner and outer interlayer grouting holes correspond to the inside of the outer corrugated pipe and between the inner and outer corrugated pipes respectively.
[0011] In one embodiment, the end anchor plate is respectively installed with an inner layer vibrating rod and an inner and outer layer interlayer vibrating rod on the inner side facing the outer bellows and the inner bellows, and the inner layer vibrating rod and the inner and outer layer interlayer vibrating rod respectively extend toward the inside of the outer bellows and between the inner bellows and the outer bellows.
[0012] In one embodiment, a motor reserved hole is opened on the end surface of the tail anchor plate, and four motor reserved holes are provided, which are axially symmetrical and centrally symmetrically arranged, and an electric motor is installed in the motor reserved hole.
[0013] The beneficial effects of the utility model are as follows:
[0014] (1) The utility model installs the end anchor plates and the tail anchor plates at both ends of the corrugated pipe, and starts grouting through the inner grouting holes of the corrugated pipe after the prestress is stabilized for 48 hours. During the grouting process, an electric motor is turned on at the same time to make the inner corrugated pipe rotate at a uniform speed to achieve the purpose of uniform mixing. After the inner ring is initially filled with grouting, the electric motor is turned off, the vibrating rod is turned on, and the inner ring slurry is vibrated. After the vibration is completed, all electric motors are taken out through the motor reserved hole of the tail anchor plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a side view of the overall structure of the utility model;
[0016] Figure 2 This is a side view of the bellows of the utility model;
[0017] Figure 3 This is a front view of the end anchor plate of the utility model;
[0018] Figure 4 This is a side view of the end anchor plate of the utility model;
[0019] Figure 5 This is a side view of the tail anchor plate of the utility model;
[0020] Figure 6 It is a side view of the motor of the present utility model.
[0021] Among them, the names corresponding to the figure marks are: outer bellows 1, inner bellows 2, end anchor plate 3, inner layer grouting hole 31, inner and outer interlayer grouting hole 32, inner layer vibrating rod 33, inner and outer interlayer vibrating rod 34, tail anchor plate 4, motor reserved channel 41, electric motor 5. DETAILED DESCRIPTION
[0022] The present invention is further described below in conjunction with the accompanying drawings and embodiments. The present invention includes but is not limited to the following embodiments.
[0023] like Figure 1-Figure 2 As shown, the utility model provides a double-layer corrugated pipe capable of external stirring and vibration, comprising: an outer corrugated pipe 1, an inner corrugated pipe 2, an end anchor plate 3, a tail anchor plate 4, and an electric motor 5;
[0024] like Figure 1-Figure 6 As shown, an inner bellows 2 is provided inside the outer bellows 1, an end anchor plate 3 is installed at the front end of the outer bellows 1, a tail anchor plate 4 is installed at the rear end of the outer bellows 1, and a prestressed steel bundle reserved channel is opened at the center of the surface of the end anchor plate 3.
[0025] Preferably, in one embodiment, the surfaces of the end anchor plate 3 and the tail anchor plate 4 facing the outer bellows 1 and the inner bellows 2 are provided with limit slots plugged therewith to fix the outer bellows 1 and the inner bellows 2.
[0026] Preferably, in one embodiment, Figure 3-Figure 4 As shown, inner grouting holes 31 and inner and outer interlayer grouting holes 32 are respectively opened on both sides of the prestressed steel bundle reserved channel of the end anchor plate 3, and the inner grouting holes 31 and inner and outer interlayer grouting holes 32 correspond to the inside of the outer corrugated pipe 1 and between the inner corrugated pipe 2 and the outer corrugated pipe 1 respectively.
[0027] Preferably, in one embodiment, Figure 3-Figure 4 As shown, the inner side surfaces of the end anchor plate 3 facing the outer bellows 1 and the inner bellows 2 are respectively installed with inner layer vibrating rods 33 and inner and outer layer vibrating rods 34, and the inner layer vibrating rods 33 and inner and outer layer vibrating rods 34 extend toward the inside of the outer bellows 1 and between the inner bellows 2 and the outer bellows 1, respectively.
[0028] Preferably, in one embodiment, Figure 5-Figure 6 As shown, a motor reserved hole 41 is opened on the end surface of the tail anchor plate 4, and four motor reserved holes 41 are provided, which are axially symmetrical and centrally symmetrically arranged, and an electric motor 5 is installed in the motor reserved holes 41.
[0029] Working principle of this utility model:
[0030] During operation, the double-layer corrugated pipe is installed on the main structure to be cast, and the electric motor 5 in the inner and outer ring interlayer can play a preliminary fixation on the inner ring corrugated pipe 2. After the main structure is cast, the end anchor plates 3 and the tail anchor plates 4 are installed at both ends of the corrugated pipe. After the prestress is stabilized for 48 hours, the preliminary grouting is started through the inner layer grouting hole 31 of the corrugated pipe. During the grouting process, four electric motors 5 are turned on at the same time to make the inner bellows 2 rotate at a uniform speed to achieve the purpose of uniform stirring. After the inner ring grouting is initially filled, the electric motor 5 is turned off, the vibrator is turned on, and the inner ring slurry is vibrated. After the vibration is completed, all the electric motors 5 are taken out through the motor reserved channel 41 of the tail anchor plate 4. After taking out, the channel is sealed with epoxy resin material. After the strength of the epoxy resin is stable, grouting is carried out through the inner and outer interlayer grouting holes 32. After the grouting is completed, vibrate with the vibrator rod. After the vibration is completed, all the grouting holes are sealed with epoxy resin material.
[0031] The above embodiment is only one of the preferred implementation modes of the present utility model and should not be used to limit the protection scope of the present utility model. Any changes or modifications that are made to the main design concept and spirit of the present utility model without any substantive significance, as long as the technical problems solved are still consistent with the present utility model, should be included in the protection scope of the present utility model.
Claims
1. A double-layer corrugated pipe capable of external stirring and vibration, characterized in that: include: External bellows, internal bellows; An inner bellows is arranged inside the outer bellows, an end anchor plate is installed at the front end of the outer bellows, a tail anchor plate is installed at the rear end of the outer bellows, and a prestressed steel bundle reserved channel is opened at the center of the surface of the end anchor plate.
2. A double-layer corrugated pipe capable of external stirring and vibration according to claim 1, characterized in that: The surfaces of the end anchor plate and the tail anchor plate facing the outer bellows and the inner bellows are provided with limit slots plugged therewith to fix the outer bellows and the inner bellows.
3. The double-layer corrugated pipe capable of external stirring and vibration according to claim 2, characterized in that: Inner grouting holes and inner and outer interlayer grouting holes are respectively opened on both sides of the prestressed steel bundle reserved channel of the end anchor plate, and the inner grouting holes and inner and outer interlayer grouting holes correspond to the inside of the outer corrugated pipe and between the inner and outer corrugated pipes respectively.
4. A double-layer corrugated pipe capable of external stirring and vibration according to claim 3, characterized in that: The inner side surfaces of the end anchor plates facing the outer bellows and the inner bellows are respectively installed with inner layer vibrating rods and inner and outer interlayer vibrating rods, and the inner layer vibrating rods and inner and outer interlayer vibrating rods respectively extend toward the inside of the outer bellows and between the inner bellows and the outer bellows.
5. The double-layer corrugated pipe capable of external stirring and vibration according to claim 1, characterized in that: A motor reserved hole is opened on the end surface of the tail anchor plate. There are four motor reserved holes, which are axially symmetrical and centrally symmetrically arranged. An electric motor is installed in the motor reserved hole.