A fixing support for an external pipe of a water pump

Abstract

The utility model discloses a kind of fixing support of water pump external connection pipe, including ring and expansion bolt;The ring includes two half rings and connecting piece, two half rings two ends are fixedly connected by connecting piece, wherein the top of half ring is provided with top support rod, side is provided with side support rod, bottom is also provided with bottom support rod, wherein the rod end of top support rod, side support rod and bottom support rod is fixedly provided with steel plate;The steel plate is at least symmetrically provided with a pair of bolt holes, and the bolt hole is used for installing and fixed expansion bolt with wall body.The utility model is rigidly connected with wall body by each support rod, enhances external connection pipe rigidity, inhibits vibration transmission, reduces motor support vibration, and is suitable for low tide level operation;Simple structure, convenient to install, without reforming pipe body, can effectively improve water pump operation stability, prolong equipment life.

Description

Technical Field

[0001] This utility model relates to the field of water pump installation technology, specifically to a fixing bracket for the external pipe of a water pump. Background Technology

[0002] Testing revealed that since the second-phase circulating water pumps in the factory were put into operation in 2016, the strength of the upper support of the motor has been consistently high. Monitoring data showed that the effective value of its vibration velocity has consistently exceeded the factory standard and industry specification limits. Subsequently, several circulating water pumps were overhauled in 2020 and 2021, but the vibration value was not effectively reduced after the overhaul and remained in a high range.

[0003] Analysis of operational data from various circulating water pumps under different tide levels revealed that vibration displacement was generally 0.015 mm to 0.03 mm lower at high tide compared to low tide. Multiple tests and analyses by the technical team concluded that this phenomenon was related to insufficient rigidity of the external pipe structure of the circulating water pumps. The external pipe wall thickness of the Shanghai KSB circulating water pumps used in this project is 12 mm, which is relatively low compared to the 16 mm wall thickness designed by the Changsha Pump Factory. Under high tide conditions, the increased immersion height of the external pipe in seawater provides greater fluid damping to the pipe body, suppressing vibration and thus improving overall vibration performance. However, at low tide, the reduced immersion height weakens the fluid damping effect, leading to increased system vibration.

[0004] In summary, insufficient rigidity of the external pipe structure and changes in operating water level jointly affect the vibration characteristics of the circulating water pump unit. To address the intensified vibration of the external pipe during low tide, it is necessary to design a fixed support for the external pipe. Utility Model Content

[0005] To address the issue of insufficient rigidity in the external pipe of a water pump leading to increased vibration at low tide, this invention provides a fixed support that can assist in fixing and limiting the external pipe of the water pump, reducing vibration during use, and maintaining reliable and stable operation.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows: A fixing bracket for an external pipe of a water pump includes a ring sleeve and expansion bolts. The ring sleeve includes two semi-rings and a connector. The two semi-rings are fixedly connected at both ends by the connector. A top support rod is provided at the top of the semi-rings, a side support rod is provided on the side, and a bottom support rod is provided at the bottom. A steel plate is fixedly provided at the end of the top support rod, the side support rod, and the bottom support rod. The steel plate has at least one pair of bolt holes symmetrically provided for installing expansion bolts fixed to the wall.

[0007] Furthermore, the connector includes a threaded connecting post, a U-shaped limiting plate, and a limiting nut, wherein the limiting nut is connected to the threaded connecting post via a threaded connection. Threaded connecting posts are fixedly welded to two sides of one end of the semi-ring, and a U-shaped limiting plate that mates with the threaded connecting post is fixedly connected to the other end. When the two semi-rings are engaged, the notch of the U-shaped limiting plate engages with the threaded connecting post. Then, the limiting nut is tightened to fix the threaded connecting post and the U-shaped limiting plate together. When the two semi-rings are engaged, the threaded connecting post of one semi-ring engages with the notch of the U-shaped limiting plate of the other semi-ring, and then the limiting nut is tightened, achieving quick connection and locking of the semi-rings. This connection structure, through threaded engagement and U-shaped engagement, achieves convenient assembly and secure fixing of the ring, ensuring connection strength while facilitating on-site installation and disassembly, thus improving the assembly efficiency and reliability of the fixed bracket.

[0008] Furthermore, silicone pads are provided on both sides of the U-shaped limiting piece. The silicone pads on both sides of the U-shaped limiting piece increase the friction between the U-shaped limiting piece and the contact surfaces of the semi-ring and the limiting nut when the ring is tightened, effectively preventing loosening of the connection due to equipment vibration. Simultaneously, the silicone pads have a buffering effect, reducing rigid impact during tightening, protecting the surface of the semi-ring, and improving the stability and durability of the connection.

[0009] Furthermore, an epoxy resin layer is provided on the outer side of the expansion bolts. After determining the installation position of the expansion bolts at the ends of each support rod, holes are drilled in the wall or fixing structure, epoxy resin is injected into the holes, and the expansion bolts are inserted. After curing, a dense epoxy resin layer is formed. This structure not only enhances the bonding strength and sealing between the expansion bolts and the wall, effectively preventing bolt corrosion and loosening caused by seawater and salt spray erosion, but also significantly improves the overall anchoring reliability and durability of the fixing bracket, making it suitable for long-term stable operation in harsh marine environments such as high humidity and high salt spray.

[0010] Furthermore, a silicone pad is fixedly installed on the inner side of the semi-ring. The silicone pad on the inner side of the semi-ring provides elastic contact when the ring is tightly fitted around the outer pipe, increasing friction to prevent relative slippage. It also buffers vibration and impact, reduces wear on the outer pipe wall of the water pump, improves the fit and protective function of the fixed bracket, and enhances support stability and equipment operational safety.

[0011] Furthermore, aluminum anode blocks are welded to the top support rod, side support rod, and bottom support rod respectively. The sacrificial protection effect of the aluminum anodes in the seawater environment preferentially induces electrochemical corrosion, effectively delaying the corrosion process of the fixed support metal components when exposed to high salt spray or seawater in coastal areas. This improves the overall corrosion resistance and service life of the support, ensuring the structural strength and safety during long-term operation.

[0012] Furthermore, the top support rod, side support rod, and bottom support rod all adopt Y-shaped rods, and steel plates are installed at the branch ends of the rods. The Y-shaped rod structure provides limiting and fixing, enabling multi-point anchoring, so that the fixed bracket and the wall form a more stable spatial support system, effectively distributing the force, enhancing the overall structure's vibration resistance and stability, and adapting to installation requirements under complex working conditions, thereby improving the reliability and adaptability of the support.

[0013] Furthermore, a reinforcing rod is fixedly connected between the side support rod and the bottom support rod. The reinforcing rod effectively enhances the rigidity and stability of the support structure, suppresses the deformation and vibration of the support rod under external forces, improves the overall mechanical properties and fatigue resistance of the fixed bracket, and ensures the reliable connection and stable load-bearing capacity of the support system during long-term operation.

[0014] How to use this utility model: The external pipe of the circulating water pump needs to be fixedly installed in the pump pit and connected to the circulating water pump. The number of supports can be selected according to the actual length of the external pipe. When the external pipe is long, the number of supports can be increased accordingly. When using the supports, firstly, the two half rings are placed in the predetermined position of the external pipe of the circulating water pump. The two half rings are then fastened to form a complete ring sleeve through the connector, so that it is firmly attached to the outer wall of the external pipe. Then, the positions of the top support rod, side support rod and bottom support rod are adjusted so that the steel plate at the end of each support rod is close to the surrounding wall or fixed structure. Finally, expansion bolts are installed in the symmetrical bolt holes of the steel plate to firmly anchor the steel plate to the wall, thereby realizing the multi-directional limiting and stable support of the ring sleeve and the external pipe.

[0015] Compared with the prior art, the present invention has the following advantages and beneficial effects: 1. This utility model forms a rigid connection with the wall through support rods in multiple directions (top, side, and bottom), significantly enhancing the overall structural rigidity of the external pipe. Especially during low tide operation, it effectively compensates for the reduced fluid damping caused by the decrease in immersion height, suppresses the vibration transmission of the external pipe, and reduces the effective value of vibration velocity at the motor support. Furthermore, the overall structure of the support is simple and easy to install, requiring no modification to the external pipe body. It is suitable for vibration control retrofitting of already operational units. By adding fixed supports, auxiliary support and reliable limiting of the external pipe are achieved, improving the operational stability and safety of the circulating water pump under different tide conditions and extending the service life of the equipment.

[0016] 2. This utility model uses a threaded connecting column and a U-shaped limiting plate to lock the semi-ring, achieving quick assembly and secure connection of the ring sleeve, facilitating installation and disassembly. The U-shaped limiting plate is equipped with a silicone pad to enhance friction and buffer vibration, preventing loosening. The silicone pad on the inner side of the semi-ring increases friction with the outer pipe, reducing shock and preventing wear. A steel plate is installed at the end of the Y-shaped support rod to achieve multi-point anchoring, improving vibration resistance and stability. The reinforcing rod enhances the rigidity of the support structure and suppresses deformation. The expansion bolts are filled with epoxy resin to improve bonding strength and prevent seawater corrosion. The support rod is equipped with an aluminum anode block, which delays the corrosion of metal parts through sacrificial anode protection. The overall structure is stable, highly corrosion-resistant, suitable for harsh environments such as high salt spray, has a long service life, and is safe and reliable. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0018] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 3 This is a schematic diagram of the specific structure of the connector of this utility model.

[0020] Figure 4 This is an installation diagram of this utility model.

[0021] Attached image labels: Ring-1, Half-ring-11, Connector-12, Threaded connecting post-13, U-shaped limiting plate-14, Limiting nut-15, Top support rod-2, Side support rod-3, Bottom support rod-4, Steel plate-5, Bolt hole-51, Limiting screw reinforcing rod-6. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] Example 1: A fixed bracket for an external pipe of a water pump, comprising a ring sleeve 1 and expansion bolts; the ring sleeve 1 comprises two semi-rings 11 and a connector 12, the two ends of the two semi-rings 11 are fixedly connected by the connector 12 respectively, wherein a top support rod 2 is provided at the top of the semi-rings 11, a side support rod 3 is provided on the side, and a bottom support rod 4 is provided at the bottom, wherein a steel plate 5 is fixedly provided at the end of the top support rod 2, the side support rod 3 and the bottom support rod 4; the steel plate 5 is provided with at least a pair of bolt holes 51 symmetrically, the bolt holes 51 being used to install expansion bolts fixed to the wall.

[0024] How to use this utility model: The external pipe of the circulating water pump needs to be fixedly installed in the pump pit and connected to the circulating water pump. The number of supports can be selected according to the actual length of the external pipe. When the external pipe is long, the number of supports can be increased accordingly. When using the supports, firstly, the two half rings 11 are fitted together at the predetermined position of the external pipe of the circulating water pump. The two half rings 11 are then fastened to form a complete ring sleeve 1 through the connector 12, so that it is firmly attached to the outer wall of the external pipe. Then, the positions of the top support rod 2, the side support rod 3 and the bottom support rod 4 are adjusted so that the steel plate 5 at the end of each support rod is close to the surrounding wall or fixed structure. Finally, by installing expansion bolts in the symmetrical bolt holes 51 of the steel plate 5, the steel plate 5 is firmly anchored to the wall, thereby realizing the multi-directional limiting and stable support of the ring sleeve 1 and the external pipe.

[0025] Example 2: Unlike Example 1, the connector 12 includes a threaded connecting post 13, a U-shaped limiting piece 14, and a limiting nut 15. The limiting nut 15 is connected to the threaded connecting post 13 by thread. The threaded connecting post 13 is fixedly welded to two sides of one end of the semi-ring 11, and the U-shaped limiting piece 14 that mates with the threaded connecting post 13 is fixedly connected to the other end. When the two semi-rings 11 are engaged, the notch of the U-shaped limiting piece 14 is inserted into the threaded connecting post 13. Then, the limiting nut 15 is tightened to fix the threaded connecting post 13 and the U-shaped limiting piece 14 together. When the two half-rings 11 are engaged, the threaded connecting post 13 of one half-ring 11 is inserted into the notch of the U-shaped limiting piece 14 of the other half-ring 11, and then the limiting nut 15 is tightened to achieve quick connection and locking of the half-rings 11. This connection structure achieves convenient assembly and firm fixation of the ring sleeve 1 through threaded engagement and U-shaped snap-fit, which not only ensures the connection strength, but also facilitates on-site installation and disassembly, and improves the assembly efficiency and reliability of the fixed bracket.

[0026] An epoxy resin layer is provided on the outside of the expansion bolts. After determining the installation position of the expansion bolts at the ends of each support rod, holes are drilled in the wall or fixed structure, epoxy resin is poured into the holes, and the expansion bolts are inserted. After curing, a dense epoxy resin layer is formed. This structure not only enhances the bonding strength and sealing between the expansion bolts and the wall, effectively preventing bolt corrosion and loosening caused by seawater and salt spray, but also significantly improves the overall anchoring reliability and durability of the fixed bracket, making it suitable for long-term stable operation in harsh marine environments such as high humidity and high salt spray.

[0027] A silicone pad is fixedly installed on the inner side of the semi-ring 11. The silicone pad on the inner side of the semi-ring 11 provides elastic contact when the ring sleeve 1 clamps the outer pipe, increases friction to prevent relative slippage, buffers vibration and impact, reduces wear on the outer pipe wall of the water pump, improves the fit and protection of the fixed bracket, and enhances the support stability and equipment operation safety.

[0028] The top support rod 2, side support rod 3 and bottom support rod 4 are all formed by combining two rod sections. The connecting ends of the two rod sections are fixedly connected with flanges. After the two flanges are aligned, the bolts are tightened to complete the fixed connection.

[0029] Example 3: The difference from Example 2 is that silicone pads are provided on both sides of the U-shaped limiting piece 14. The silicone pads on both sides of the U-shaped limiting piece 14 increase the friction between the ring 1 and the contact surfaces of the semi-ring 11 and the limiting nut 15 when the ring sleeve 1 is tightened, effectively preventing loosening of the connection due to equipment vibration. Simultaneously, the silicone pads have a buffering effect, reducing rigid impact during tightening, protecting the surface of the semi-ring 11, and improving the stability and durability of the connection.

[0030] Aluminum anode blocks are welded to the top support rod 2, side support rod 3, and bottom support rod 4 respectively. The aluminum anodes provide sacrificial protection in the seawater environment, preferentially causing electrochemical corrosion, effectively delaying the corrosion process of the metal components of the fixed support when exposed to high salt spray or seawater in coastal areas, improving the overall corrosion resistance and service life of the support, and ensuring the structural strength and safety of long-term operation.

[0031] The top support rod 2, side support rod 3, and bottom support rod 4 are all Y-shaped rods, with steel plates 5 installed at the branch ends of each rod. The Y-shaped rod structure provides limiting and fixing, enabling multi-point anchoring and forming a more stable spatial support system between the fixed bracket and the wall. This effectively disperses the stress, enhances the overall structure's vibration resistance and stability, and adapts to installation requirements under complex working conditions, improving the reliability and adaptability of the support.

[0032] A reinforcing rod 6 is fixedly connected between the side support rod 3 and the bottom support rod 4. The reinforcing rod 6 effectively enhances the rigidity and stability of the support structure, suppresses deformation and vibration of the support rods under external forces, improves the overall mechanical properties and fatigue resistance of the fixed bracket, and ensures reliable connection and stable load-bearing capacity of the support system during long-term operation. Numerous specific details are set forth in this specification. However, it will be understood that embodiments of this invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A fixing bracket for an external pipe of a water pump, characterized in that: It includes a ring sleeve (1) and expansion bolts; the ring sleeve (1) includes two half rings (11) and a connector (12). The two half rings (11) are fixedly connected at both ends by the connector (12). The top of the half ring (11) is provided with a top support rod (2), the side is provided with a side support rod (3), and the bottom is provided with a bottom support rod (4). The ends of the top support rod (2), the side support rod (3), and the bottom support rod (4) are all fixedly provided with steel plates (5). The steel plates (5) are provided with at least one pair of bolt holes (51) symmetrically. The bolt holes (51) are used to install expansion bolts fixed to the wall.

2. The fixing bracket for the external pipe of a water pump as described in claim 1, characterized in that: The connector (12) includes a threaded connecting post (13), a U-shaped limiting piece (14), and a limiting nut (15), wherein the limiting nut (15) is connected to the threaded connecting post (13) by thread; the threaded connecting post (13) is fixedly welded to the two sides of one end of the semi-ring (11), and the U-shaped limiting piece (14) that matches the threaded connecting post (13) is fixedly connected to the other end. When the two semi-rings (11) are engaged, the notch of the U-shaped limiting piece (14) is inserted into the threaded connecting post (13). Then the limiting nut (15) is tightened so that the threaded connecting post (13) and the U-shaped limiting piece (14) are fixedly connected together.

3. The fixing bracket for the external pipe of a water pump as described in claim 2, characterized in that: The two sides of the U-shaped limiting piece (14) are respectively provided with silicone pads.

4. The fixing bracket for the external pipe of a water pump as described in claim 1, characterized in that: An epoxy resin layer is provided on the outside of the expansion bolt.

5. The fixing bracket for the external pipe of a water pump as described in claim 1, characterized in that: A silicone pad is fixedly installed on the inner side of the semi-ring (11).

6. The fixing bracket for the external pipe of a water pump as described in claim 1, characterized in that: Aluminum anode blocks are welded onto the top support rod (2), side support rod (3) and bottom support rod (4).

7. The fixing bracket for the external pipe of a water pump as described in claim 1, characterized in that: The top support rod (2), side support rod (3) and bottom support rod (4) are all Y-shaped rods, and steel plates (5) are installed at the branch ends of the rods.

8. A fixing bracket for an external water pump pipe as described in any one of claims 1-7, characterized in that: A reinforcing rod (6) is fixedly connected between the side support rod (3) and the bottom support rod (4).

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