A profile assembly and a profile reel assembly for making a helical expansion pipe

Abstract

The utility model relates to a section bar assembly and section bar drum assembly for making spiral expansion pipeline, before using section bar winding spiral expansion pipeline, just make section bar drum assembly together with steel wire pre -setting in section bar and transport, moreover will not increase the volume of section bar drum assembly, do not need to transport steel wire drum and section bar drum respectively to construction site like prior art, save the work of transporting steel wire drum to construction site additionally, steel wire winding in section bar and winding into drum together with section bar, will not take up space additionally, save transportation space and transportation cost, reduce construction site floor area, avoid the risk that construction site pulls and leads steel wire interferes other equipment or stumbles personnel, have very big promotion to the neat degree of construction site, save operation step and operation time, reduce construction operation amount, improve operation efficiency.

Description

Technical Field

[0001] This utility model relates to a profile assembly and a profile roll assembly for manufacturing spiral expansion pipes, belonging to the field of trenchless pipe repair technology. Background Technology

[0002] Urban water supply and drainage pipelines are known as the "underground lifeline" of a city, making their maintenance and repair increasingly important. Traditional pipeline repair methods involve excavation to replace pipes, resulting in massive engineering projects, consuming significant manpower and resources, and requiring rapid completion. Furthermore, these methods can lead to traffic congestion and environmental pollution—all unacceptable for modern urban development. Therefore, trenchless pipeline repair technology, which eliminates the need for ground excavation and minimizes traffic disruption during in-situ repairs, has been widely adopted in the pipeline repair field due to its advantages: minimal impact on transportation, the environment, and the socio-economic environment.

[0003] Currently, the spiral winding trenchless repair technology uses spiral winding profiles, which are wound into pipes under the mechanical action of a winding machine. Adjacent profiles forming the pipe are locked together by sacrificial locks and base locks. During the winding process, steel wires are simultaneously embedded next to the sacrificial locks of the profiles. When the steel wires are pulled later, the sacrificial locks of the profiles can be cut off, allowing the profiles to expand.

[0004] Current construction methods require transporting the profile rolls and wire rolls separately to the construction site and placing them there. Before winding, the profiles and wires need to be fed into the winding machine head separately, and then spirally wound to form a spiral expansion pipe. This not only requires transporting and handling the wire rolls, which occupies transport space during transport and construction space at the construction site, but also requires feeding the wires into the winding machine head. Furthermore, the wires can easily become entangled and interfere with other objects on site, and even pose a risk of tripping workers. Utility Model Content

[0005] In view of the shortcomings of the prior art described above, the technical problem to be solved by this utility model is to provide a profile assembly for manufacturing spiral expansion pipes, which can reduce the amount of construction work and improve work efficiency.

[0006] To achieve the above objectives, this utility model provides a profile assembly for manufacturing a spiral expansion pipe, comprising a profile and steel wire. The profile includes a profile body, a first side of which is provided with a male sacrificial lock and a male base lock, the male sacrificial lock being located outside the male base lock. The second side of the profile body is provided with a female sacrificial lock and a female base lock, the female base lock being located outside the female sacrificial lock.

[0007] Before using the profile to wind the spiral expansion pipe, the steel wire is pre-embedded in the profile in the following manner:

[0008] The steel wire is continuously embedded between the male sacrificial lock and the male foundation lock along the length of the profile, or the steel wire is continuously embedded between the female sacrificial lock and the female foundation lock along the length of the profile.

[0009] Preferably, the steel wire is disposed between the male sacrificial lock and the male base lock, and the steel wire is disposed near the root of the male sacrificial lock.

[0010] More preferably, the steel wire is bonded to the root position near the male sacrificial latch by an adhesive.

[0011] More preferably, an auxiliary rib is provided between the male sacrificial lock and the male foundation lock, and the steel wire is clamped between the auxiliary rib and the male sacrificial lock.

[0012] More preferably, a first slot is provided between the male sacrificial lock and the male base lock, and the steel wire is locked in the first slot.

[0013] Preferably, the steel wire is disposed between the female sacrificial lock and the female foundation lock, and a second slot is provided between the female sacrificial lock and the female foundation lock, and the steel wire is locked in the second slot.

[0014] More preferably, the steel wire is adhered to the second slot by an adhesive.

[0015] More preferably, the second slot opening faces the female sacrificial latch.

[0016] More preferably, the two ends of the steel wire are fixed to the two ends of the profile, respectively.

[0017] Corresponding to the profile assembly for manufacturing a spiral expansion pipe of the present invention, the present invention also provides a profile roll assembly, including the profile assembly for manufacturing a spiral expansion pipe as described in the above technical solution, and a roll, wherein the profile assembly is wound on the roll.

[0018] This utility model relates to a profile assembly for manufacturing spiral expansion pipes, which has the following beneficial effects:

[0019] 1. Since the steel wire is pre-embedded in the profile, the profile can be manufactured in the factory, and the steel wire can be directly embedded in the profile to form a profile roll assembly for transportation. This does not increase the volume of the profile roll assembly, eliminating the need to transport the steel wire roll and profile roll separately to the construction site as in existing technologies. This saves the work of transporting the steel wire roll to the construction site. The steel wire is wound in the profile and rolled together with the profile to form a roll, which does not take up extra space, saving transportation space and transportation costs.

[0020] 2. There is no need to set up wire reels to supply steel wire to the profiles at the construction site. This saves time and labor costs associated with the transportation, deployment, and recycling of wire reels at the construction site. It also reduces the area occupied at the construction site and avoids the risk of the wires interfering with other equipment or tripping people. This greatly improves the tidiness of the construction site.

[0021] 3. Since the steel wire is pre-embedded in the profile, there is no need to supply the profile and steel wire separately to the spiral winding machine when spiral winding pipes. This eliminates the need to separately pull the steel wire into the winding machine head, saving operation steps and time, reducing the amount of construction work, and improving operation efficiency.

[0022] In summary, as can be seen from the above description, the solution of this utility model saves transportation and handling costs, saves transportation and construction site space, saves operation steps and time, and improves construction efficiency.

[0023] The profile roll assembly involved in this utility model also has the above-mentioned beneficial effects, which will not be elaborated here. Attached Figure Description

[0024] Figure 1 The diagram shows a three-dimensional structural representation of the profile, which is a flexible component of unlimited length.

[0025] Figure 2 The diagram shows a cross-section of the profile, with the steel wire directly wound between the male sacrificial lock and the male foundation lock.

[0026] Figure 3 The diagram shows a cross-sectional view of the profile, with the steel wire bonded to the root of the male sacrificial lock using adhesive.

[0027] Figure 4 The diagram shows a cross-sectional view of the profile, with the steel wire secured between the auxiliary rib and the male sacrificial lock.

[0028] Figure 5 The diagram shows a cross-sectional view of the profile, with the steel wire secured in the first slot near the root of the male sacrificial lock.

[0029] Figure 6 The diagram shows a cross-sectional view of the profile, with the steel wire secured in the second slot between the female sacrificial lock and the female foundation lock.

[0030] Figure 7 The diagram shows a cross-sectional view of the profile, with the steel wire bonded to the second slot by an adhesive.

[0031] Figure 8 The diagram shows a cross-sectional view of the profile, with the steel wire inserted in the second slot, the opening of which faces the female sacrificial lock.

[0032] Figure 9 This diagram shows a structure in which two adjacent turns of profile are interlocked together in a spiral expansion tube.

[0033] Figure 10 The diagram shows a structural schematic of an end cap for fixing a steel wire at the end of a profile, with a retaining ring used to fix the steel wire.

[0034] Figure 11 The diagram shows a structural schematic of an end cap for fixing steel wires at the end of a profile, with a fixing post used to fix the steel wires.

[0035] Component designation explanation

[0036] 1. Profile body

[0037] 2 First side

[0038] 3 Second side

[0039] 4. Sacrifice Lock

[0040] 5. Basic locking mechanism

[0041] 6 auxiliary reinforcing bars

[0042] 7. Reinforcing ribs

[0043] 8 Mother Sacrifice Lock

[0044] 9. Mother base lock

[0045] 10 steel wires

[0046] 11 Adhesive strips

[0047] 12 auxiliary ribs

[0048] 13 First Card Slot

[0049] 14 Second Card Slot

[0050] 15 End Caps

[0051] 16. Fixing ring

[0052] 17 Fixed Columns

[0053] 18 Wire Holes

[0054] 19. Connecting part Detailed Implementation

[0055] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0056] It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings of this specification are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this utility model, should still fall within the scope of the technical content disclosed in this utility model. Furthermore, the terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of implementation of this utility model.

[0057] like Figure 1 As shown, the profile involved in this utility model is a strip-shaped flexible component of unlimited length. This type of profile is used to manufacture trenchless repair spiral expansion pipes to repair underground pipe networks. The spiral expansion pipe is lined in the pipe to be repaired. The spiral expansion pipe is spirally wound from the strip profile. The expansion spiral wound pipe adopts a mechanical locking process, which has a base lock and a sacrificial lock that locks the sides of adjacent profiles. The male sacrificial lock 4 and the female sacrificial lock 8 are engaged to form a sacrificial lock. The male base lock 5 and the female base lock 9 are engaged to form a base lock. Before the sacrificial lock is cut off, the pipe cannot expand due to the locking of the sacrificial lock. After the sacrificial lock is cut off, the locking force of the base lock is insufficient to resist the torsional torque of the spiral winding machine on the pipe. The profiles slide relative to each other and expand radially.

[0058] like Figures 2 to 8 As shown, this utility model provides a profile assembly for manufacturing a spiral expansion pipe, including a profile and a steel wire 10. The profile includes a profile body 1. The first side 2 of the profile body 1 is provided with a male sacrificial lock 4 and a male base lock 5. The male sacrificial lock 4 is located outside the male base lock 5. The second side 3 of the profile body 1 is provided with a female sacrificial lock 8 and a female base lock 9. The female base lock 9 is located outside the female sacrificial lock 8.

[0059] Before using the profile to wind the spiral expansion pipe, the steel wire 10 is pre-installed in the profile in the following manner:

[0060] like Figures 2 to 5 As shown, the steel wire 10 is continuously embedded between the male sacrificial lock 4 and the male base lock 5 along the length of the profile, or, as... Figures 6 to 8 As shown, the steel wire 10 is continuously embedded between the female sacrificial lock 8 and the female base lock 9 along the length direction of the profile.

[0061] This utility model relates to a profile assembly for manufacturing spiral expansion pipes, which has the following beneficial effects:

[0062] 1. Since the steel wire 10 is pre-embedded in the profile before the spiral winding of the pipe, and the steel wire 10 is embedded in the profile and formed into a profile roll before the profile is transported to the construction site, the profile can be manufactured in the factory. The steel wire 10 can be pre-embedded in the profile directly in the factory to form a profile roll assembly for transportation. Moreover, it will not increase the volume of the profile roll assembly. Unlike the existing technology, it is not necessary to transport the steel wire 10 roll and the profile roll separately to the construction site. This saves the work of transporting the steel wire 10 roll to the construction site. The steel wire 10 is wound in the profile and wound together with the profile into a roll, which does not occupy extra space, saving transportation space and transportation costs.

[0063] 2. There is no need to set up steel wire 10 reels to supply steel wire 10 to the profiles at the construction site. This saves time and labor costs associated with the transportation, deployment, and recycling of steel wire 10 reels at the construction site. It also reduces the area occupied at the construction site and avoids the risk of the steel wire 10 interfering with other equipment or tripping people. This greatly improves the tidiness of the construction site.

[0064] 3. Since the steel wire 10 is pre-installed in the profile, it is not necessary to supply the profile and steel wire 10 separately to the spiral winding machine when spiral winding the pipe. This eliminates the need to separately pull the steel wire 10 into the winding machine head, saving operation steps and time, reducing the amount of construction work, and improving operation efficiency.

[0065] In summary, as can be seen from the above description, the solution of this utility model saves transportation and handling costs, saves transportation and construction site space, saves operation steps and time, and improves construction efficiency.

[0066] Profiles are generally made of PVC material. After the profile is formed by the molding equipment, steel wire 10 can be embedded into the profile, and then it can be wound up to form a profile roll assembly. For example... Figure 2 As shown, the steel wire 10 can be continuously embedded between the male sacrificial lock 4 and the male base lock 5, and a certain tension force can be applied to the steel wire 10. When winding, the steel wire 10 will be tightly wrapped around the profile surface between the male sacrificial lock 4 and the male base lock 5. The steel wire 10 can be set near the root of the male sacrificial lock 4. Setting the steel wire 10 near the root of the male sacrificial lock 4 can minimize the impact of the steel wire 10 sliding or shaking on the locking of the male sacrificial lock 4 and the female sacrificial lock 8 during the winding operation.

[0067] like Figure 9As shown, in the pipe formed by spiral winding of profiles, the adjacent edges of two adjacent rings of profiles are locked by sacrificial locks and base locks. Male sacrificial lock 4 and female sacrificial lock 8 are locked together to form a sacrificial lock, and male base lock 5 and female base lock 9 are locked together to form a base lock. During spiral winding, steel wire 10 is synchronously wound and embedded next to male sacrificial lock 4. Pulling steel wire 10 out of the gap between the adjacent edges of two adjacent rings of profiles can cut off male sacrificial lock 4. Before cutting off the sacrificial lock, the pipe cannot expand due to the locking of the sacrificial lock. After cutting off the sacrificial lock, the locking force of the base lock is insufficient to resist the torsional torque of the spiral winding machine on the pipe. The profiles slide relative to each other and expand radially.

[0068] like Figures 2 to 8 As shown, the back of the profile body is also provided with auxiliary ribs 6 and reinforcing ribs 7. After the spiral pipe is expanded, the reinforcing ribs 7 abut against the inner wall of the pipe. An adhesive strip 11 is also provided in the groove of the female sacrificial lock. The adhesive strip 11 is used to stick the male sacrificial lock 4 into the groove of the female sacrificial lock.

[0069] In order to keep the steel wire 10 at the root of the male sacrificial lock 4, when the steel wire 10 is pulled, it can directly contact the male base lock 5 and apply force to the male base lock 5, thus cutting off the male base lock 5. Figure 3 As shown, the steel wire 10 can be bonded to the root position near the male sacrificial latch 4 using adhesive. The adhesive only needs to hold the steel wire 10 in place so that it cannot slide freely; a very strong bond is not necessary. When the steel wire 10 is pulled to cut the male sacrificial latch 4, the steel wire 10 can quickly separate from the adhesive. The adhesive can be used to continuously bond the steel wire 10 or to bond the steel wire 10 to the profile body 1 intermittently using dots. Another convenient method is to embed the steel wire 10 at the root position of the male sacrificial latch 4, such as... Figure 4 As shown, an auxiliary rib 12 is provided between the male sacrificial lock 4 and the male base lock 5. The steel wire 10 is clamped between the auxiliary rib 12 and the male sacrificial lock 4. The auxiliary rib 12 is directly formed by a molding device and is an integral structure with the profile body 1. Alternatively, a snap-fit ​​structure can be provided at intervals and glued to the profile body 1 to clamp the steel wire 10 at the root position of the male sacrificial lock 4. Another way to clamp the steel wire 10 at the root position of the male sacrificial lock 4 is as follows: Figure 5 As shown, a first slot 13 is provided between the male sacrificial lock 4 and the male base lock 5. The steel wire 10 is locked in the first slot 13. The first slot 13 is set as an arc-shaped groove that can wrap around more than half of the circumference of the cross-section of the steel wire 10. When the steel wire 10 is inserted, the steel wire 10 is pressed into the first slot 13.

[0070] like Figures 6 to 8As shown, the steel wire 10 can also be positioned between the female sacrificial lock 8 and the female foundation lock 9. For example... Figure 6 As shown, a second slot 14 is provided between the female sacrificial lock 8 and the female base lock 9. The steel wire 10 is secured in the second slot 14. The second slot 14 is configured as an arc-shaped groove that can cover more than half of the circumference of the cross-section of the steel wire 10. When inserting the steel wire 10, the steel wire 10 is pressed into the second slot 14. To prevent the steel wire 10 from slipping out of the second slot 14, as follows... Figure 7 As shown, adhesive can be placed in the second slot 14. The steel wire 10 is adhered to the second slot 14 by the adhesive. The adhesive is sufficient to hold the steel wire 10 in place so that it cannot slide freely; a very strong bond is not necessary. When the steel wire 10 is pulled to cut the male sacrificial lock 4, the steel wire 10 can quickly separate from the adhesive. The adhesive can be applied continuously to the steel wire 10 or intermittently in dots to adhere the steel wire 10 to the second slot 14. To ensure that the steel wire 10 cuts the male sacrificial lock 4 smoothly after being pulled out of the second slot 14, as shown... Figure 8 As shown, the opening of the second slot 14 faces the female sacrificial latch 8.

[0071] Compared to placing the steel wire 10 between the female sacrificial lock 8 and the female foundation lock 9, placing it between the male sacrificial lock 4 and the male foundation lock 5 is superior. Placing the steel wire 10 between these two locks makes it less likely to come loose. The male sacrificial lock 4 and the male foundation lock 5 protrude beyond the steel wire 10, thus protecting it within the groove between them. This prevents the steel wire 10 from coming loose due to friction from other objects during transportation and construction. While placing the steel wire 10 between the female sacrificial lock 8 and the female foundation lock 9 does not provide protection, it still achieves the intended technical purpose.

[0072] After the steel wire 10 is embedded in the profile, in order to prevent the steel wire 10 from sliding axially relative to the profile and bulging or even falling out between the male sacrificial lock 4 and the male base lock 5 when the profile is wound onto the drum, the steel wire 10 can be fixed to the profile at both ends. A certain length of the steel wire 10 can be left pre-existing and directly tied to the end of the profile. This method is simple, but the shape and structure of the profile end are irregular, making the profile easily damaged. Winding onto the drum or unwinding on-site can easily scratch the profile. Alternatively, a fixing fixture can be used to fix the steel wire 10 so that it cannot move axially. An end cap 15 can be fixedly connected to the end of the profile. The end cap 15 is provided with a steel wire hole 18 and a fixing ring 16 or fixing post 17 for fixing the steel wire 10. The steel wire 10 passes through the steel wire hole 18 and is connected to the fixing ring 16. Both ends of the profile are provided with such end caps 15. The end caps 15 do not necessarily completely cover the end of the profile, but they need to be able to fix or lock the end of the profile so that it cannot move. The end cap 15 can be provided with a plug part 19 that can be inserted into the groove between the reinforcing ribs of the profile for positioning and fixing.

[0073] Corresponding to the profile assembly for manufacturing a spiral expansion pipe of the present invention, the present invention also provides a profile roll assembly, including the profile assembly for manufacturing a spiral expansion pipe as described in the above technical solution, and a roll, wherein the profile assembly is wound on the roll.

[0074] This utility model relates to a profile assembly and a profile roll assembly for manufacturing spiral expansion pipes, which have the following beneficial effects:

[0075] 1. Since the steel wire 10 is pre-embedded in the profile, the profile can be manufactured in the factory. The steel wire 10 can be directly pre-embedded in the profile to form a profile roll assembly for transportation. This will not increase the volume of the profile roll assembly. Unlike existing technologies, it is not necessary to transport the steel wire 10 roll and the profile roll separately to the construction site. This saves the work of transporting the steel wire 10 roll to the construction site. The steel wire 10 is wound in the profile and wound together with the profile to form a roll, which will not occupy extra space and save transportation space and transportation costs.

[0076] 2. There is no need to set up steel wire 10 reels to supply steel wire 10 to the profiles at the construction site. This saves time and labor costs associated with the transportation, deployment, and recycling of steel wire 10 reels at the construction site. It also reduces the area occupied at the construction site and avoids the risk of the steel wire 10 interfering with other equipment or tripping people. This greatly improves the tidiness of the construction site.

[0077] 3. Since the steel wire 10 is pre-installed in the profile, it is not necessary to supply the profile and steel wire 10 separately to the spiral winding machine when spiral winding the pipe. This eliminates the need to separately pull the steel wire 10 into the winding machine head, saving operation steps and time, reducing the amount of construction work, and improving operation efficiency.

[0078] In summary, as can be seen from the above description, the solution of this utility model saves transportation and handling costs, saves transportation and construction site space, saves operation steps and time, and improves construction efficiency.

[0079] In summary, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0080] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A profile assembly for manufacturing a spiral expansion pipe, comprising a profile and steel wire, the profile comprising a profile body, a first side of the profile body having a male sacrificial lock and a male base lock, the male sacrificial lock being located outside the male base lock, and a second side of the profile body having a female sacrificial lock and a female base lock, the female base lock being located outside the female sacrificial lock; characterized in that: Before using the profile to wind the spiral expansion pipe, the steel wire is pre-embedded in the profile in the following manner: The steel wire is continuously embedded between the male sacrificial lock and the male foundation lock along the length of the profile, or the steel wire is continuously embedded between the female sacrificial lock and the female foundation lock along the length of the profile.

2. The profile assembly for manufacturing a spiral expansion pipe according to claim 1, characterized in that: The steel wire is positioned between the male sacrificial lock and the male base lock, and is located near the root of the male sacrificial lock.

3. The profile assembly for manufacturing a spiral expansion pipe according to claim 2, characterized in that: The steel wire is bonded to the root position near the male sacrificial lock with an adhesive.

4. The profile assembly for manufacturing a spiral expansion pipe according to claim 2, characterized in that: An auxiliary rib is provided between the male sacrificial lock and the male foundation lock, and the steel wire is clamped between the auxiliary rib and the male sacrificial lock.

5. The profile assembly for manufacturing a spiral expansion pipe according to claim 2, characterized in that: A first slot is provided between the male sacrificial lock and the male base lock, and the steel wire is locked in the first slot.

6. The profile assembly for manufacturing a spiral expansion pipe according to claim 1, characterized in that: The steel wire is disposed between the female sacrificial lock and the female foundation lock, and a second slot is provided between the female sacrificial lock and the female foundation lock, and the steel wire is locked in the second slot.

7. The profile assembly for manufacturing a spiral expansion pipe according to claim 6, characterized in that: The steel wire is bonded to the second slot with an adhesive.

8. The profile assembly for manufacturing a spiral expansion pipe according to claim 6, characterized in that: The second slot opening faces the female sacrificial latch.

9. The profile assembly for manufacturing a spiral expansion pipe according to claim 1, characterized in that: The two ends of the steel wire are fixed to the two ends of the profile, respectively.

10. A profile roll assembly comprising a profile assembly for manufacturing a spiral expansion pipe as described in any one of claims 1 to 9, and a roll on which the profile assembly is wound.

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