An installation structure for pre-embedded water-stop steel sleeves

Abstract

This utility model provides a pre-embedded water-stop steel sleeve installation structure, suitable for scenarios such as water supply and drainage in high-rise buildings, industrial circulating water, and municipal water supply pipeline renovation. It can effectively solve problems such as loose pipe connections, water hammer impact damage, and axial torsion. The structure includes a steel pipe sleeve, a flange, an anti-loosening mechanism, a buffer mechanism, and an anti-torsion rib. The anti-loosening mechanism achieves longitudinal adjustment and secondary anti-loosening through the sliding of the height adjustment column and the insertion of the positioning pin; the lateral adjustment ensures a tight fit of the external flange; the buffer mechanism uses a buffer spring to absorb the impact force of water hammer and protect the connecting parts; and the anti-torsion rib enhances the resistance to axial torsion. This utility model is easy to install, has reliable sealing, efficient buffering, strong anti-torsion, and a simple structure, making it easy to modify and upgrade, reducing construction and maintenance costs, and ensuring the stable operation of the pipeline system.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe sleeve technology, specifically to a pre-embedded water-stop steel sleeve installation structure. Background Technology

[0002] In pipeline systems, pre-embedded water-stop steel sleeves serve as crucial connecting components. The stability and sealing of their installation structure directly impact the operational safety and efficiency of the entire pipeline system. However, in practical applications, the dynamic changes in the fluid within the pipeline, particularly the water hammer phenomenon generated during valve opening and closing, can exert tremendous impact on the pre-embedded water-stop steel sleeves and their connecting components. This impact can not only lead to loosening and leakage of connecting components but may even cause serious consequences such as pipeline rupture. Therefore, effectively mitigating the impact of water hammer on pre-embedded water-stop steel sleeves and improving the stability and sealing of their installation structure has become an urgent problem to be solved in the design and installation of current pipeline systems.

[0003] In addition, the existing pre-embedded water-stop steel sleeve installation structure also has certain deficiencies in terms of preventing loosening and resisting torsion. During long-term operation, due to the vibration and impact of the fluid, the connecting parts are prone to loosening, resulting in a decrease in sealing performance. At the same time, water hammer may also cause the overall torsion of the steel sleeve, further aggravating the risk of loosening and leakage at the connection.

[0004] Therefore, developing a pre-embedded water-stop steel sleeve installation structure that is anti-loosening, anti-torsion, and effectively buffers water hammer is of great significance for improving the operational safety and efficiency of pipeline systems. Utility Model Content

[0005] To address the problems mentioned in the background art, the purpose of this utility model is to provide a pre-embedded water-stop steel sleeve installation structure and method, which has the advantages of preventing loosening and resisting torsion. It solves the problem that the existing pre-embedded water-stop steel sleeve installation structure also has certain shortcomings in preventing loosening and resisting torsion. During long-term operation, due to the vibration and impact of fluid, the connecting parts are prone to loosening, resulting in a decrease in sealing performance. At the same time, water hammer may also cause the overall torsion of the steel pipe sleeve, further aggravating the problem of loosening and leakage risk at the connection.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pre-embedded water-stop steel sleeve installation structure, including a steel pipe sleeve and flanges fixedly installed at the top and bottom of the steel pipe sleeve. Four sets of annularly distributed reinforcing ears are fixedly installed on the outside of the flanges. The interior of the reinforcing ears is provided with an anti-loosening mechanism for pressing the external flange. The interior of the steel pipe sleeve is provided with a buffer mechanism for buffering the fluid water hammer situation after docking.

[0007] In a preferred embodiment of this invention, the anti-loosening mechanism includes a height adjusting column. A lateral adjusting component is movably installed on the top of the height adjusting column to eliminate the longitudinal gap between the height adjusting column and the external farad plate after longitudinal adjustment. A positioning pin is slidably installed inside the height adjusting column. A fixing hole is provided on the side of the reinforcing ear near the positioning pin. Several sets of positioning holes are provided inside the height adjusting column and are distributed longitudinally at equal intervals. Both the positioning holes and the fixing holes are inserted and engaged with the positioning pin. The outer wall of the height adjusting column is slidably engaged with the inside of the reinforcing ear.

[0008] In a preferred embodiment of this utility model, the lateral adjustment assembly includes a guide plate, a pressure block is fixedly installed at one end of the guide plate near the flange, the guide plate is laterally slidingly engaged with the height adjustment column, a screw is laterally threaded to the top of the height adjustment column, a stepped end is fixedly connected to one end of the screw near the pressure block, and a limiting groove is provided on the top of the pressure block to rotatably engage with the stepped end.

[0009] In a preferred embodiment of this invention, the buffer mechanism includes a stabilizing ring, which is fixedly installed at the center of the inner wall of the steel pipe sleeve. An impact-resistant ring is slidably installed on the top of the inner wall of the steel pipe sleeve. A guide tube is fixedly installed on the inner ring of the impact-resistant ring. The outer wall of the guide tube is slidably fitted with the inner wall of the stabilizing ring. A buffer spring is sleeved on the surface of the guide tube. The top of the buffer spring is fixedly installed with the bottom of the impact-resistant ring, and the bottom of the buffer spring is fixedly installed with the top of the stabilizing ring.

[0010] As a preferred embodiment of this utility model, the flange is provided with an inlay groove on the side away from the steel pipe sleeve, and an anti-torsion rib is movably inlaid inside the inlay groove. A plug-in seat that is inserted and matched with the bottom of the anti-torsion rib is fixedly installed on the top of the bottom flange. There are eight sets of anti-torsion ribs and plug-in seats, which are distributed in a ring at equal intervals.

[0011] As a preferred embodiment of this utility model, the cross-sections of the impact-resistant ring and the stabilizing ring are both trapezoidal, and a magnetic block is embedded in the inside of the fixing hole near the flange, which magnetically engages with the positioning pin.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model achieves rapid and precise adjustment of the connection height through the sliding fit between the height adjustment column and the reinforcing ear, and the insertion fit between the positioning pin and the positioning hole and the fixing hole, effectively eliminating longitudinal gaps; the lateral adjustment component, through the cooperation of the screw, the stepped end and the pressure block, enables the pressure block to move stably horizontally, further squeezing the external flange, achieving secondary anti-loosening, and greatly enhancing the stability and sealing of the connection.

[0014] 2. This utility model provides stable elastic support for the buffer spring through the stabilizing ring in the buffer mechanism. The sliding cooperation between the impact-resistant ring and the guide tube, as well as the elastic deformation of the buffer spring, together constitute an efficient buffer system. When water hammer occurs in the pipeline, the buffer mechanism can quickly absorb and disperse the impact force, avoiding direct impact on the connection between the top and bottom flanges of the steel pipe sleeve, effectively protecting the connecting parts and extending the service life.

[0015] 3. This utility model, through the combined design of anti-torsion ribs, inlay grooves, and plug-in seats, enables the pre-embedded water-stop steel sleeve to form axial resistance with the object at the pre-embedded location through multiple sets of anti-torsion ribs when subjected to external forces, thus having a significant anti-axial torsion capability; this design effectively prevents the overall torsion of the steel pipe sleeve caused by water hammer or equipment vibration, further enhancing the stability and reliability of the pipeline system. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of a partial explosion of the present invention;

[0018] Figure 3 This is a schematic diagram of the partially exploded three-dimensional structure of this utility model.

[0019] Figure 4 This utility model Figure 2 A magnified structural diagram of point A in the middle.

[0020] In the diagram: 1. Steel pipe sleeve; 2. Flange; 21. Reinforcing lug; 211. Height adjustment column; 212. Positioning pin; 213. Screw; 214. Stepped end; 215. Pressure block; 216. Guide plate; 217. Positioning hole; 218. Fixing hole; 3. Impact ring; 31. Buffer spring; 32. Guide tube; 33. Stabilizing ring; 4. Anti-torsion rib; 41. Embedding groove; 42. Plug-in socket. Detailed Implementation

[0021] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1 to 4As shown, the present invention provides a pre-embedded water-stop steel sleeve installation structure, including a steel pipe sleeve 1 and a flange 2 fixedly installed on the top and bottom of the steel pipe sleeve 1. Four sets of annularly distributed reinforcing ears 21 are fixedly installed on the outside of the flange 2. The inside of the reinforcing ears 21 is provided with an anti-loosening mechanism for pressing the external flange. The inside of the steel pipe sleeve 1 is provided with a buffer mechanism for buffering the fluid water hammer after docking.

[0023] refer to Figure 4 The anti-loosening mechanism includes a height adjustment column 211. A lateral adjustment component is movably installed on the top of the height adjustment column 211 to eliminate the longitudinal gap between the height adjustment column 211 and the external farad plate after longitudinal adjustment. A positioning pin 212 is slidably installed inside the height adjustment column 211. A fixing hole 218 is opened on the side of the reinforcing ear 21 near the positioning pin 212. Several sets of positioning holes 217 are opened inside the height adjustment column 211 and are distributed longitudinally at equal distances. The positioning holes 217 and the fixing holes 218 are inserted and engaged with the positioning pin 212. The outer wall of the height adjustment column 211 is slidably engaged with the inside of the reinforcing ear 21.

[0024] As a technical optimization of this utility model, the height adjustment column 211 can slide up and down inside the reinforcing ear 21, and the height closest to the external flange can be quickly found through multiple positioning holes 217, shortening the adjustment time. Finally, the horizontal adjustment component is operated according to the closest height to eliminate the longitudinal gap between the height adjustment column 211 and the external flange, so that the external flange and the flange 2 can be in close contact for a sealed connection, providing a secondary relaxation effect.

[0025] refer to Figure 4 The lateral adjustment assembly includes a guide plate 216. A pressure block 215 is fixedly installed on one end of the guide plate 216 near the flange 2. The guide plate 216 and the height adjustment column 211 slide laterally. A screw 213 is threadedly connected to the top of the height adjustment column 211. A stepped end 214 is fixedly connected to one end of the screw 213 near the pressure block 215. A limiting groove is provided on the top of the pressure block 215 to rotate with the stepped end 214.

[0026] As a technical optimization of this utility model, the lateral position of the screw 213 on the height adjustment column 211 can be changed by torsion screw 213. Then, through the limiting cooperation between the stepped end 214 and the pressure block 215, the screw 213 moving during rotation can drive the pressure block 215 to move through the stepped end 214. Furthermore, through the sliding relationship between the guide plate 216 and the height adjustment column 211, the pressure block 215 can move horizontally stably. Then, the slope of the pressure block 215 can squeeze the external flange and the flange 2 into tight contact, realizing secondary anti-loosening installation.

[0027] refer to Figure 3The buffer mechanism includes a stabilizing ring 33, which is fixedly installed at the center of the inner wall of the steel pipe sleeve 1. An impact-resistant ring 3 is slidably installed on the top of the inner wall of the steel pipe sleeve 1. A guide tube 32 is fixedly installed on the inner ring of the impact-resistant ring 3. The outer wall of the guide tube 32 is slidably fitted with the inner wall of the stabilizing ring 33. A buffer spring 31 is sleeved on the surface of the guide tube 32. The top of the buffer spring 31 is fixedly installed with the bottom of the impact-resistant ring 3, and the bottom of the buffer spring 31 is fixedly installed with the top of the stabilizing ring 33.

[0028] As a technical optimization of this utility model, the stabilizing ring 33 can provide elastic support for the buffer spring 31. When water hammer occurs, the water hammer force can be absorbed and buffered by the buffer spring 31 through the anti-impact ring 3 and the guide tube 32, avoiding direct rigid impact on the connection between the top and bottom flanges 2 of the steel pipe sleeve 1. Direct water hammer impact force will cause the connection to loosen without buffering, which will lead to leakage or breakage at the connection. The installation position and direction of the stabilizing ring 33 are set according to the direction of fluid flow. If the fluid is transported from top to bottom, the position is inconvenient. If the fluid is transported from bottom to top, it can be installed in a mirror image of the position described above, which can ensure stable buffering after water hammer occurs.

[0029] refer to Figure 3 The flange 2 has an inlay groove 41 on the side away from the steel pipe sleeve 1. The anti-torsion rib 4 is movably inlaid inside the inlay groove 41. The bottom flange 2 has a plug seat 42 that is fixedly installed on the top and engages with the bottom of the anti-torsion rib 4. There are eight sets of anti-torsion ribs 4 and plug seats 42, which are distributed in a ring at equal intervals.

[0030] As a technical optimization of this utility model, the eight sets of inlay grooves 41 facilitate the connection of the flange 2 to the external flange after inlay installation, and at the same time facilitate the installation of sealing elements on the flange 2. Moreover, the design can be directly slotted into existing products to complete iterative improvements without making major changes to the existing molds. The anti-torsion ribs 4 produced by the bending machine can achieve the function of resisting axial torsion. After pre-embedding, it avoids the overall torsion of the steel pipe sleeve 1 caused by water hammer, which would lead to increased loosening at the connection. The multiple sets of anti-torsion ribs 4 form axial resistance with the object at the pre-embedded location, thereby achieving the function of resisting axial torsion.

[0031] refer to Figure 3 The cross-sections of the impact-resistant ring 3 and the stabilizing ring 33 are both trapezoidal. The inside of the fixing hole 218 is inlaid with a magnetic block on the side near the flange 2, and it magnetically engages with the positioning pin 212.

[0032] As a technical optimization of this utility model, the trapezoidal cross section can ensure the stable transition of the fluid and also has a guiding function, allowing the fluid to pass stably through the guide tube 32. Furthermore, the magnetic block makes the positioning pin 212 easy to operate without the need for twisting the thread, reducing processing steps, and allowing the operation to be done by simply pulling it out. Finally, since it is pre-embedded in the space, the positioning pin 212 can be squeezed by an external object to prevent it from falling off.

[0033] Example 1: Application of Water Supply and Drainage Systems in High-Rise Buildings

[0034] Scene description:

[0035] In the water supply and drainage systems of high-rise buildings, due to the large differences in floor heights and frequent changes in water flow velocity, water hammer is likely to occur, causing huge impacts on pipe connection components. At the same time, vibrations of the building structure may also cause pipe connections to loosen.

[0036] Application solutions:

[0037] The pre-embedded water-stop steel sleeve installation structure provided by this utility model is used for installation in the pre-embedded section of water supply and drainage pipes in high-rise buildings. The specific steps are as follows:

[0038] Installation preparation: Select appropriate steel pipe sleeve 1 and flange 2 according to pipe specifications and design requirements, and ensure that the reinforcing lug 21 and anti-loosening mechanism components are complete;

[0039] Height adjustment: Adjust the height to match the height of the external flange by sliding the height adjustment column 211 in the reinforcing lug 21, and fix it by inserting the positioning pin 212 into the corresponding positioning hole 217 and fixing hole 218.

[0040] Lateral adjustment: The torsion screw 213 pushes the pressure block 215 to move horizontally through the stepped end 214, so that it is in close contact with the external flange, thereby achieving secondary anti-loosening;

[0041] Buffer mechanism installation: Fix the stabilizing ring 33 to the center of the inner wall of the steel pipe sleeve 1, install the impact-resistant ring 3 and the guide tube 32, and fit the buffer spring 31 to ensure the normal operation of the buffer mechanism;

[0042] Anti-torsion installation: Anti-torsion ribs 4 are embedded in the groove 41 of flange 2 and are inserted into the socket 42 of bottom flange 2 to enhance the resistance to axial torsion.

[0043] Example 2: Application of Industrial Circulating Water System

[0044] Scene description:

[0045] In industrial circulating water systems, frequent pump starts and stops and large changes in water flow velocity can easily lead to water hammer. At the same time, vibrations from industrial equipment can also affect pipe connections.

[0046] Application solutions:

[0047] In view of the characteristics of industrial circulating water systems, the pre-embedded water-stop steel sleeve installation structure provided by this utility model is used for modification. The specific steps are as follows:

[0048] System assessment: Assess the existing circulating water system to determine the pipe sections that need to be modified and the specifications of the pre-embedded water-stop steel sleeves;

[0049] Removal of old components: Remove the existing pre-embedded water-stop steel sleeves and connecting parts;

[0050] Install new components: Follow the steps in Example 1 to install the new pre-embedded waterstop steel sleeve installation structure, and ensure that all components are tightly and stably connected;

[0051] System debugging: After installation, the circulating water system is debugged to check whether parameters such as water flow rate and pressure are normal, and to ensure stable system operation;

[0052] The buffer mechanism effectively mitigates the impact of water hammer on pipe connection components, improving the stability and reliability of the system. At the same time, the anti-torsion rib 4 also enhances the system's anti-torsion capability and reduces maintenance costs.

[0053] Working principle and usage process of this utility model: Working principle of the anti-loosening mechanism:

[0054] During installation, the height adjustment column 211 is first slid up and down inside the reinforcing ear 21 to quickly find the height position closest to the external flange. The outer wall of the height adjustment column 211 slides with the inside of the reinforcing ear 21 to ensure the stability of the adjustment process. Then, the positioning pin 212 is used to fix the height adjustment column 211 and the external flange by inserting and engaging multiple longitudinally equidistant positioning holes 217 and fixing holes 218. This quickly eliminates the longitudinal gap between the height adjustment column 211 and the external flange. The positioning holes 217 are opened inside the height adjustment column 211, and the fixing holes 218 are opened on the side of the reinforcing ear 21 near the positioning pin 212.

[0055] Next, by twisting the screw 213, the stepped end 214 and the pressure block 215 are engaged in a limiting fit, allowing the pressure block 215 to move stably horizontally under the guidance of the guide plate 216. The screw 213 is connected to the height adjustment column 211 by a transverse thread. The stepped end 214 is fixedly connected to the end of the screw 213 near the pressure block 215. The top of the pressure block 215 has a limiting groove that rotates with the stepped end 214. The pressure block 215 is fixedly installed on the end of the guide plate 216 near the flange 2 and slides laterally with the height adjustment column 211. The slope design of the pressure block 215 allows it to squeeze the external flange and make tight contact with the flange 2, achieving a secondary anti-loosening installation effect. This design not only improves the stability of the connection but also enhances the sealing performance.

[0056] Working principle of the buffer mechanism:

[0057] The stabilizing ring 33 is fixedly installed at the center of the inner wall of the steel pipe sleeve 1 to provide elastic support for the buffer spring 31. The impact-resistant ring 3 is slidably installed on the top of the inner wall of the steel pipe sleeve 1. The inner ring of the ring is fixedly installed with the guide tube 32. The outer wall of the guide tube 32 is slidably fitted with the inner wall of the stabilizing ring 33. The buffer spring 31 is sleeved on the guide tube 32. Its top is fixedly installed with the bottom of the impact-resistant ring 3, and its bottom is fixedly installed with the top of the stabilizing ring 33.

[0058] When water hammer occurs in the pipeline, the anti-impact ring 3 will move downward under the impact force. Through the sliding cooperation between the guide tube 32 and the stabilizing ring 33, the buffer spring 31 is compressed and absorbs the impact force. In this way, the water hammer force is effectively buffered, avoiding direct rigid impact on the connection between the top and bottom flanges 2 of the steel pipe sleeve 1, thereby protecting the stability and sealing of the connection.

[0059] Furthermore, this utility model enhances the axial torsion resistance of the pre-embedded water-stop steel sleeve by setting anti-torsion ribs 4 and plug-in seats 42. The anti-torsion ribs 4 are embedded in the inlay groove 41 opened on the side of the flange 2 away from the steel pipe sleeve 1. The top of the bottom flange 2 is fixedly installed with plug-in seats 42 that are inserted and matched with the bottom of the anti-torsion ribs 4. This design enables the pre-embedded water-stop steel sleeve to form axial resistance with the object at the pre-embedded location through multiple sets of anti-torsion ribs 4 when subjected to external forces such as water hammer, thereby having an axial anti-torsion effect and further improving the operational safety and efficiency of the pipeline system.

[0060] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0061] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pre-embedded water-stop steel sleeve installation structure, comprising a steel pipe sleeve (1) and flanges (2) fixedly installed at the top and bottom of the steel pipe sleeve (1), characterized in that: Four sets of annularly distributed reinforcing ears (21) are fixedly installed on the outside of the flange (2). The inside of the reinforcing ears (21) is provided with an anti-loosening mechanism for pressing the external flange. The inside of the steel pipe sleeve (1) is provided with a buffer mechanism for buffering the fluid water hammer after docking.

2. The pre-embedded water-stop steel sleeve installation structure according to claim 1, characterized in that: The anti-loosening mechanism includes a height adjustment column (211). A lateral adjustment component is movably installed on the top of the height adjustment column (211) and is used to eliminate the longitudinal gap between the height adjustment column (211) and the external farad plate after longitudinal adjustment. A positioning pin (212) is slidably installed inside the height adjustment column (211). A fixing hole (218) is opened on the side of the reinforcing ear (212) near the positioning pin (212). Several sets of positioning holes (217) are opened inside the height adjustment column (211) and are distributed longitudinally at equal distances. The positioning holes (217) and fixing holes (218) are both inserted into the positioning pin (212). The outer wall of the height adjustment column (211) is slidably engaged with the inside of the reinforcing ear (21).

3. The pre-embedded water-stop steel sleeve installation structure according to claim 2, characterized in that: The lateral adjustment assembly includes a guide plate (216), and a pressure block (215) is fixedly installed on one end of the guide plate (216) near the flange (2). The guide plate (216) is laterally slidingly engaged with the height adjustment column (211). A screw (213) is laterally threaded to the top of the height adjustment column (211). A stepped end (214) is fixedly connected to one end of the screw (213) near the pressure block (215). A limiting groove is provided on the top of the pressure block (215) to rotate with the stepped end (214).

4. The pre-embedded water-stop steel sleeve installation structure according to claim 3, characterized in that: The buffer mechanism includes a stabilizing ring (33), which is fixedly installed at the center of the inner wall of the steel pipe sleeve (1). An impact-resistant ring (3) is slidably installed on the top of the inner wall of the steel pipe sleeve (1). A guide tube (32) is fixedly installed on the inner ring of the impact-resistant ring (3). The outer wall of the guide tube (32) is slidably engaged with the inner wall of the stabilizing ring (33). A buffer spring (31) is sleeved on the surface of the guide tube (32). The top of the buffer spring (31) is fixedly installed with the bottom of the impact-resistant ring (3), and the bottom of the buffer spring (31) is fixedly installed with the top of the stabilizing ring (33).

5. The pre-embedded water-stop steel sleeve installation structure according to claim 1, characterized in that: The flange (2) has an inlay groove (41) on the side away from the steel pipe sleeve (1). The anti-torsion rib (4) is movably inlaid inside the inlay groove (41). The bottom flange (2) is fixedly installed with a plug seat (42) that is in contact with the bottom of the anti-torsion rib (4). There are eight sets of anti-torsion ribs (4) and plug seats (42) in a ring and they are evenly distributed.

6. The pre-embedded water-stop steel sleeve installation structure according to claim 4, characterized in that: The cross-sections of the impact-resistant ring (3) and the stabilizing ring (33) are both trapezoidal. The inside of the fixing hole (218) is inlaid with a magnetic block on the side near the flange (2), and it magnetically engages with the positioning pin (212).

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