Pipeline positioning tool and building embedded structure
By designing pipeline positioning tools and using suspension and expansion joints to fix embedded parts, the problem of inaccurate position control of water and electricity pipelines and sleeves in concrete beams and slabs was solved, thus improving positional stability and construction quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-04-10
AI Technical Summary
Existing technology cannot accurately control the position of water and electricity pipelines and through-beam pipe sleeves within concrete beams and slabs, and displacement is prone to occur during concrete pouring, affecting construction quality and safety.
A pipeline positioning tool was designed, including a suspension part, an extension part, and a fixing part. The suspension part is fixed to the surface reinforcement. The rigid member connecting the extension part and the fixing part has an adjustable length to fix the position of the embedded part in the concrete beam and slab, ensuring the stability of the position during the concrete pouring process.
This improved the positional stability of the embedded parts, reduced the risk of concrete cracking and the centering error of the pipe sleeves passing through beams, and improved construction efficiency and embedded quality.
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Figure CN224107786U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to pipeline positioning technical field, especially pipeline positioning tool and building embedded structure. BACKGROUND
[0002] In cast-in-place building construction, it is necessary to integrally embed water and electricity pipelines in reinforced concrete beam plates or to embed sleeve pipes through which the pipelines directly pass through the beam body, so that the water and electricity pipelines or the sleeve pipes are centrally arranged in the middle of the beam plate concrete; if the water and electricity pipelines and the sleeve pipes are close to the surface of the beam plate, the concrete protection layer is thin, and then the beam plate concrete is prone to cracking.
[0003] As shown in FIG. Figure 1 When the conventional water and electricity pipelines 60 are embedded, only the water and electricity pipelines 60 are simply placed on the bottom reinforcement of the reinforced concrete beam plate, and the pipelines 60 are supported and positioned by the setting of the cushion blocks 70 below the pipelines 60 to avoid the direct contact of the pipelines 60 with the bottom surface of the beam plate, but in this way, the water and electricity pipelines 60 and the cushion blocks 70 are prone to displacement in the concrete pouring process, and the position of the water and electricity embedded pipelines in the concrete beam plate cannot be accurately controlled. When the sleeve pipe 50 through which the pipeline passes through the beam is embedded, as shown in FIG. Figure 1 、 Figure 2 The sleeve pipe 50 is mainly positioned by the longitudinal reinforcement 101 on the front and rear sides of the cast-in-place beam 10, and the positioning reinforcement 30 is arranged on the upper and lower sides of the embedded position of the sleeve pipe 50 based on the position of the longitudinal reinforcement 101 and the size of the sleeve pipe 50, and the sleeve pipe 50 is clamped and fixed by the positioning reinforcement 30; since the positioning accuracy of the bound reinforcement in the conventional construction is low, the sleeve pipe 50 cannot be accurately positioned based on the longitudinal reinforcement 101, the sleeve pipes 50 in the front and rear beam plates can be high or low, and the sleeve pipes 50 in the front and rear adjacent beam plates can be greatly deviated in the axial centering due to the vibration and collision in the process of welding the sleeve pipe 50 and the positioning reinforcement 30, which affects the use effect of the sleeve pipe 50 and is not conducive to the pipeline passing through the beam, and the construction may need to be re-performed.
[0004] Therefore, it is necessary to design a pipeline positioning tool which can control the position of the embedded water and electricity pipelines or the pipeline passing through the beam in the beam plate and ensure the position stability of the water and electricity pipelines or the sleeve pipe of the pipeline passing through the beam in the concrete pouring process. UTILITY MODEL CONTENTS
[0005] The utility model aims at overcoming the defects that the prior art cannot accurately control the position of the water and electricity pipelines and the sleeve pipe of the pipeline passing through the beam in the concrete beam plate and is prone to displacement in the concrete pouring process, and provides a pipeline positioning tool and a building embedded structure.
[0006] In a first aspect, the utility model provides a pipeline positioning tool, which comprises:
[0007] A hanging part is used for fixedly connecting the surface layer steel bars;
[0008] A telescopic part is fixedly connected with the hanging part, and the telescopic part and the hanging part are both rigid members, and the length of the telescopic part is adjustable;
[0009] A fixed part is fixedly connected with the telescopic part, and the fixed part is used for fixing the embedded part.
[0010] The pipeline positioning tool can be used for controlling the embedded position of the embedded part such as the water and electricity pipeline and the beam-penetrating pipeline sleeve in the concrete beam slab. In use, the length of the telescopic part can be adjusted according to the embedded position of the embedded part such as the water and electricity pipeline or the beam-penetrating pipeline sleeve, the telescopic part is fixed on the surface layer steel bars through the hanging part, the telescopic part and the fixed part are suspended in the beam slab framework, so as to ensure that the position of the embedded part connected with the fixed part in the concrete beam slab is appropriate. Since the embedded part is fixedly connected with the telescopic part through the fixed part, the telescopic part and the hanging part are both rigid members, and the hanging part is fixed with the surface layer steel bars, the position of the pipeline positioning tool is stable during the pouring of concrete, and is not easily affected by the fluidity of concrete. Compared with the traditional unconstrained state, the embedded part is stably hoisted, the displacement is small, the embedded quality of the embedded part is more easily ensured, the risk of concrete cracking is reduced, and the centering error of the front and rear sleeves of the beam-penetrating pipeline is reduced.
[0011] The hanging part can be connected with the surface layer steel bars through hanging, welding, binding and the like, and the hanging part and the telescopic part can be integrally connected or can be in a split structure. The length of the telescopic part can be adjusted by using the existing technical means. The fixed part for fixedly connecting the embedded part can also be realized by using the existing technical means, such as the fixed line device for fabricated buildings provided in the application No. CN202322456095.
[0012] Preferably, the hanging part is in the shape of a single or double hook, and can be hung on the surface layer steel bars for preliminary positioning. After the length of the telescopic part is adjusted, the hanging part and the surface layer steel bars are fixed.
[0013] Preferably, the hanging part comprises a first rod member, a second rod member and a first adjusting member. The first rod member and the second rod member are both in the shape of a straight line, the first rod member and the second rod member are both threadedly connected with the first adjusting member, and the first rod member and the second rod member are arranged in parallel or coaxially. The hanging part can also be in the shape of a straight line with an adjustable length, and the length of the hanging part can be adaptively adjusted according to the distance between the two steel bars, so that the two ends of the hanging part can be supported on the surface layer steel bars for preliminary positioning. In use, the supporting length of the hanging part can be adjusted by rotating the first rod member or the second rod member, so as to adapt to the distance between the two steel bars. The thread adjusting directions of the first rod member and the second rod member can be set to be consistent or opposite.
[0014] When the first rod and the second rod are coaxially arranged, the first adjusting member is provided with a threaded hole, and the first rod and the second rod are coaxially arranged at two ends of the threaded hole. The first rod and the second rod are preferably arranged in parallel, that is, the first adjusting member is provided with two threaded holes, and the first rod and the second rod are arranged in a staggered manner in the horizontal direction, which is beneficial to reducing the length of the first adjusting member and better adapting to the small gap between the surface steel bars, and the working condition adaptability is better.
[0015] As another implementation manner, the first rod or the second rod can be integrally connected with the first adjusting member, and only the length of one end of the suspension part is adjusted.
[0016] The structure of the suspension part is not limited to the above examples. The structure of the suspension part should be adapted to the structure of the surface steel bar, and the size thereof should allow sufficient space for reserving a thick concrete protective layer around the periphery, and the suspension part should have sufficient supporting strength and bending strength.
[0017] Preferably, the first adjusting member is connected with the telescopic part, and the suspension part is subjected to a central force.
[0018] Preferably, the telescopic part comprises a second adjusting member, a third rod and a fourth rod, the third rod is connected with the suspension part perpendicularly, the third rod is fixedly connected with the second adjusting member, the fourth rod is slidably connected with the second adjusting member, the fourth rod is provided with a positioning hole at intervals along the length direction, and the positioning hole is detachably connected with the second adjusting member through a bolt. By moving the fourth rod along the second adjusting member and fixing the bolt, the relative displacement between the third rod and the fourth rod can be adjusted, and the length of the telescopic part can be adjusted.
[0019] Preferably, as another implementation manner, the telescopic part comprises a second adjusting member, a third rod and a fourth rod, the third rod is connected with the suspension part perpendicularly, the third rod and the fourth rod are both threadedly connected with the second adjusting member, and the third rod and the fourth rod are arranged in parallel and the thread setting directions thereof are opposite. By rotating at least one of the second adjusting member, the third rod and the fourth rod, the relative displacement between the third rod and the fourth rod can be adjusted, and the length of the telescopic part can be adjusted.
[0020] Preferably, the third rod and / or the fourth rod is provided with a scale mark, which is convenient for quickly comparing the telescopic lengths between different positioning tools.
[0021] Preferably, the fixing part is a flexible rod member with a circular cross section, the fixing part is fixedly connected with the telescopic part through a sleeve, and the leading end and the trailing end of the fixing part are connected through a universal joint. The annular circumference of the fixing part can be adjusted according to the size of the embedded part to adapt to different working conditions.
[0022] As other implementable manners, the fixed part can be directly welded and fixed with the end of the telescopic part.
[0023] Preferably, the leading end and the trailing end of the fixed part are fixedly connected through a binding belt, and the annular circumference of the fixed part can be adjusted according to the size of the embedded part to adapt to different working conditions.
[0024] In a second aspect, the utility model provides a kind of building structure embedded device, including the pipeline positioning tool of any one of above, the pipeline positioning tool is vertically arranged, and the top of the pipeline positioning tool is hung on surface layer reinforcement by suspension part, and the bottom of the pipeline positioning tool is connected by fixed part The sleeve pipe of through-beam pipeline, and the sleeve pipe is located in cast-in-place beam framework.
[0025] In a third aspect, the utility model further provides a kind of building structure embedded device, including the pipeline positioning tool of any one of above, the pipeline positioning tool is vertically arranged, and the top of the pipeline positioning tool is hung on floor surface layer reinforcement by suspension part, and the bottom of the pipeline positioning tool is connected by fixed part Water and electricity pipeline, and the water and electricity pipeline is located in floor framework.
[0026] Compared with prior art, the utility model has the beneficial effects that:
[0027] The utility model provides a kind of pipeline positioning tool, through the suspension part, telescopic part and fixed part connected in sequence, can be suspended and positioned in concrete beam slab, and pipeline positioning tool position is stable, is little to be affected by the fluidity of concrete, is favorable to guarantee the embedded quality of embedded part, reduces the risk of concrete cracking, reduces the centering error of sleeve pipe before and after through-beam pipeline;The building embedded structure using the pipeline positioning tool, the risk of concrete beam slab cracking is little, the centering error of through-beam pipeline reserved hole (i.e. the hole formed by sleeve pipe) is little, is favorable to the construction of through-beam pipeline, the risk of rework is little, and construction efficiency is high. ACCURACY
[0028] Figure 1 It is the cross section schematic view of water and electricity pipeline and through pipeline sleeve embedded in prior art;
[0029] Figure 2 It is the longitudinal schematic view of through pipeline before and after cast-in-place beam in prior art;
[0030] Figure 3 It is the structure schematic view of a kind of pipeline positioning tool in embodiment 1;
[0031] Figure 4 It is the use state diagram of pipeline positioning tool;
[0032] Figure 5 It is the schematic diagram of one kind of implementation structure of suspension part in embodiment 1;
[0033] Figure 6 Figure 2 is a use state plan view of the present application; Figure 5
[0034] Figure 7 Figure 3 is a schematic view of an embodiment of the telescopic part in Example 1;
[0035] Figure 8 Figure 4 is a schematic view of an embodiment of the fixed part in Example 1;
[0036] Figure 9 Figure 5 is a schematic view of the longitudinal structure of the pipeline positioning device when used for pipeline positioning.
[0037] Markings in the figure:
[0038] 1 - suspension part; 11 - first rod; 12 - second rod; 13 - first adjusting member;
[0039] 2 - telescopic part; 21 - third rod; 22 - fourth rod; 23 - second adjusting member;
[0040] 3 - fixed part;
[0041] 10 - beam; 101 - longitudinal steel bar; 20 - floor slab; 30 - positioning steel bar; 40 - surface steel bar; 50 - sleeve pipe; 60 - water and electricity pipeline; 70 - cushion block. DETAILED DESCRIPTION
[0042] The present application will be further described in detail below in conjunction with specific embodiments. However, it should not be understood that the scope of the above-mentioned subject matter of the present application is limited to the following embodiments only, and any technology realized based on the content of the present application falls within the scope of the present application.
[0043] In the description of the embodiments of the present application, the terms of orientation or position relationship such as "up", "down", "left", "right", "center", "inner", "outer", etc. are expressed based on the orientation or position relationship shown in the drawings, or the orientation or position relationship when the product / device / apparatus of the present application is normally used. These terms of orientation or position relationship are only used for the convenience of describing the present application or simplifying the description of the embodiments, and for the convenience of the technical personnel to quickly understand the scheme, and therefore cannot be understood as indicating or implying that the specific device / component / element must have a specific orientation, or must be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation on the present application.
[0044] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding device / component / element is absolutely horizontal or vertical or overhanging or parallel, but can be slightly inclined or have a deviation. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined. Alternatively, it can be simplified to understand that the corresponding device / component / element is arranged in the direction of "horizontal", "vertical", "overhanging", "parallel" and the like, and can have an error / deviation of ±10% relative to the corresponding direction, more preferably an error / deviation of ±8%, more preferably an error / deviation of ±6%, more preferably an error / deviation of ±5%, more preferably an error / deviation of ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the utility model scheme.
[0045] In addition, the terms "first", "second", "third" and the like in the description of the utility model embodiment are only used to distinguish the same or similar components, and should not be understood as emphasizing or implying the relative importance of the specific components.
[0046] In addition, in the description of the utility model embodiment, "several", "a plurality of", "several" represent at least 2. It can be 2, 3, 4, 5, 6, 7, 8, 9, etc. Any case, or even more than 9 cases.
[0047] In addition, in the description of the utility model technical scheme, unless otherwise specified / limited / limited, the terms "set", "install", "connect", "connect", "set", "lay", "arrange" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, which can be welding, riveting, bolting, screw connection and other commonly used connection means in the art. The connection can be mechanical connection, electrical connection or communication connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements.
[0048] Embodiment 1
[0049] As shown in Figure 3 A pipeline positioning tool includes a hanging part 1, an extension part 2 and a fixed part 3, the hanging part 1 is used for fixedly connecting the surface layer steel bar 40; the extension part 2 is fixedly connected with the hanging part 1, and the extension part 2 and the hanging part 1 are both rigid members, and the length of the extension part 2 is adjustable; the fixed part 3 is fixedly connected with the extension part 2, and the fixed part 3 is used for fixing the embedded part.
[0050] The above-mentioned pipeline positioning tool can be used to control the embedded position of the water and electricity pipeline 60 and the beam-penetrating pipeline sleeve 50 and the like in the concrete beam slab. In use, as shown in Figure 4As shown, the length of the telescopic part 2 can be adjusted according to the embedded position of the embedded part (such as the water and electricity pipeline 60 or the beam-penetrating pipeline sleeve 50), and the telescopic part 2 and the fixed part 3 are suspended in the beam-slab framework to ensure that the embedded part connected by the fixed part 3 is properly positioned in the concrete beam-slab. Since the embedded part is fixedly connected with the telescopic part 2 through the fixed part 3, the telescopic part 2 and the suspension part 1 are both rigid members, and the suspension part 1 is fixed with the surface reinforcement 40. During the concrete pouring process, the pipeline positioning tool is stable in position and is not easily affected by the fluidity of the concrete. Compared with the traditional unconstrained state, the embedded part is stable in hoisting position, has a small displacement, is more conducive to ensuring the embedded quality of the embedded part, reduces the risk of concrete cracking, and reduces the centering error of the front and rear sleeve 50 of the beam-penetrating pipeline.
[0051] Specifically, in the present embodiment, as shown in Figure 5 、 Figure 6 , the suspension part 1 includes a first rod member 11, a second rod member 12 and a first adjusting member 13. The first rod member 11 and the second rod member 12 are both linear, and the first rod member 11 and the second rod member 12 are both threadedly connected with the first adjusting member 13. The plane of the suspension part 1 is in a linear configuration. The length of the suspension part 1 is adaptively adjusted according to the spacing between the two sides of the reinforcement to enable the two ends of the suspension part 1 to be supported on the surface reinforcement 40 for preliminary positioning. In use, the support length of the suspension part 1 can be adjusted by rotating the first rod member 11 or the second rod member 12 to adapt to the spacing between the two sides of the reinforcement. The thread adjustment direction of the first rod member 11 or the second rod member 12 can be set to be consistent or opposite. In the present embodiment, the first rod member 11 and the second rod member 12 are preferably arranged in parallel, i.e., the first adjusting member 13 is correspondingly provided with two threaded holes, and the two threaded holes are respectively threadedly connected with the first rod member 11 and the second rod member 12. The first rod member 11 and the second rod member 12 are arranged in a horizontal staggered manner, which is conducive to reducing the length of the first adjusting member 13 and better adapting to the small gap between the surface reinforcement 40, and better adapting to the working conditions.
[0052] As other implementable manners, the first rod member 11 and the second rod member 12 can also be coaxially arranged in the same threaded hole.
[0053] Further, the first adjusting member 13 is perpendicularly connected with the telescopic part 2, and the suspension part 1 is centrally stressed.
[0054] As shown in Figure 7As shown, the telescopic part 2 includes a second adjusting member 23, a third rod member 21 and a fourth rod member 22, one end of the third rod member 21 is connected perpendicularly with the first adjusting member 13 of the hanging part 1, the other end of the third rod member 21 and the fourth rod member 22 are both threadedly connected with the second adjusting member 23, the third rod member 21 and the fourth rod member 22 are arranged in parallel and the threadedly arranged directions are opposite. The distal end of the fourth rod member 22 is provided with a sleeve, the sleeve is fastened and connected with the fixed part 3 by means of interference fit, sleeve joint, adhesion, hot melting, welding and the like, the sleeve and the telescopic part can be rigidly connected by means of threadedly connection or welding or one-piece forming, which is not limited to the above examples.
[0055] The fixed part 3 in the embodiment can adopt a flexible rod member with circular cross section, the leading end and the trailing end of the fixed part 3 are connected through a universal joint. By rotating at least one of the second adjusting member 23, the third rod member 21 and the fourth rod member 22, the relative displacement of the third rod member 21 and the fourth rod member 22 is adjusted, so as to adjust the length of the telescopic part 2. In use, it is preferred to adopt at least two pipeline positioning tools to hoist and connect the embedded part, which is beneficial to ensure the levelness and position stability of the embedded part.
[0056] As other implementable manners, the fixed part 3 can also adopt a ring-shaped structure with the leading end and the trailing end superimposed, such as Figure 8 As shown, the leading end and the trailing end of the fixed part 3 are fixedly connected and self-locked through a binding belt, the ring circumference of the fixed part 3 can also be adjusted according to the size of the embedded part, so as to adapt to different working conditions. The self-locking fixation of the binding belt is prior art. Alternatively, as other implementable manners, the fixed part 3 can also adopt a support arc surface with sufficient axial length, which increases the support area of the side wall of the embedded part, so as to better support the embedded part, thereby ensuring the position levelness and stability of the embedded part.
[0057] Further, in one or more embodiments, the first adjusting member 13 can adopt a T-shaped member, the first adjusting member 13 is threadedly connected with the top end of the third member, in the case that the second adjusting member 23 and the fourth rod member 22 remain unchanged, the displacement of the fourth rod member 22 can be finely adjusted by rotating the third member, which has high adjustment flexibility and good working condition adaptability.
[0058] In one or more implementable manners, scale marks can be arranged on the third rod member 21 and / or the fourth rod member 22, which is convenient for quickly comparing the telescopic lengths between different position positioning tools.
[0059] The pipeline positioning tool is used to assist the pre-embedding of the embedded part, which can ensure the protection layer thickness of the beam plate concrete on the water and electricity pipeline 60 or the through-beam pipeline, and reduce the risk of cracking of the beam plate concrete.
[0060] Embodiment 2
[0061] A building structure pre-embedding device includes one or at least two pipeline positioning tools in embodiment 1, such asFigure 6 、 Figure 9 As shown in FIG. 1, the pipeline positioning tool is vertically arranged, the top of the pipeline positioning tool is hung on the surface layer steel bar 40 through the hanging part 1, the bottom of the pipeline positioning tool is connected with the sleeve pipe 50 of the pipeline passing through the beam, and the sleeve pipe 50 is located in the framework of the cast-in-place beam 10. The sleeve pipe 50 is preferably hoisted and arranged through at least two pipeline positioning tools, and the pipeline positioning tools should have a proper distance to ensure the position stability of the sleeve pipe 50.
[0062] Embodiment 3
[0063] The building structure pre-burying device comprises one or at least two pipeline positioning tools in the embodiment 1, each pipeline positioning tool is vertically arranged, the top of the pipeline positioning tool is hung on the surface layer steel bar 40 of the floor 20 through the hanging part 1, and the bottom of the pipeline positioning tool is connected with the water and electricity pipeline 60 located in the framework of the floor 20 through the fixing part 3. The water and electricity pipeline 60 is preferably hoisted and arranged through at least two pipeline positioning tools, and the pipeline positioning tools should have a proper distance to ensure the position stability of the water and electricity pipeline 60.
[0064] The above only describes the preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims
1. A pipe positioning tool characterized by, The utility model relates to a pipeline positioning tool, which comprises the following parts: A hanging part (1) is used for fixing a surface layer reinforcing bar (40); A telescopic part (2) is fixedly connected with the hanging part (1), and the hanging part (1) and the telescopic part (2) are both rigid members; the length of the telescopic part (2) is adjustable; A fixing part (3) is fixedly connected with the telescopic part (2), and the fixing part (3) is used for fixing a pre-embedded part.
2. A pipeline positioning tool according to claim 1, wherein, The hanging part (1) is in the shape of a single-end or double-end hook.
3. A pipe positioning tool according to claim 1, wherein, The hanging part (1) comprises a first rod (11), a second rod (12) and a first adjusting part (13); the first rod (11) and the second rod (12) are both in the shape of a straight line; the first rod (11) and the second rod (12) are both threadedly connected with the first adjusting part (13); and the first rod (11) and the second rod (12) are arranged in parallel or coaxially.
4. A pipeline positioning tool according to claim 3, wherein, The first adjusting part (13) is connected with the telescopic part (2).
5. A pipe positioning tool according to claim 1, wherein, The telescopic part (2) comprises a second adjusting part (23), a third rod (21) and a fourth rod (22); the third rod (21) is perpendicularly connected with the hanging part (1); the third rod (21) is fixedly connected with the second adjusting part (23); the fourth rod (22) is slidably connected with the second adjusting part (23); a plurality of positioning holes are arranged on the fourth rod (22) at intervals along the length direction; and the positioning holes are detachably connected with the second adjusting part (23) through a bolt. Alternatively, the third rod (21) and the fourth rod (22) are both threadedly connected with the second adjusting part (23); the third rod (21) and the fourth rod (22) are arranged in parallel and the threadedly arranged directions thereof are opposite.
6. A pipeline positioning tool according to claim 5, wherein, A scale mark is arranged on the third rod (21) and / or the fourth rod (22).
7. A pipeline positioning tool according to any one of claims 1 to 6, wherein, The fixing part (3) is a flexible rod member with a circular cross section; the fixing part (3) is fixedly connected with the telescopic part (2) through a sleeve; and the leading end and the trailing end of the fixing part (3) are connected through a universal joint.
8. A pipeline positioning tool according to any one of claims 1 to 6, wherein, The leading end and the trailing end of the fixing part are fixedly connected through a binding belt.
9. A building pre-embedded structure, characterized by, The utility model relates to a pipeline positioning tool, which comprises the following parts:
10. A building pre-embedded structure, characterized by, The utility model relates to a pipeline positioning tool, which comprises the following parts:
Citation Information
Patent Citations
Wire fixing device for fabricated building
CN220874184U