Flexible sleeve for water pump

Abstract

The utility model relates to pipeline technical field especially relates to a water pump flexible sleeve, include: inner flexible pipe, outer flexible pipe, outer rigid pipe, connecting rod, inner flexible pipe sets up in the outer flexible pipe inside, outer flexible pipe sets up in the outer rigid pipe inside, and the cavity is left between inner flexible pipe and outer flexible pipe, and the cavity is left between outer flexible pipe and outer rigid pipe, connecting rod includes: telescopic link, support rod, telescopic cylinder, telescopic cylinder passes through the lateral wall of outer flexible pipe, one end of telescopic link is connected with the outer wall of inner flexible pipe, and the other end stretches into telescopic cylinder, one end of support rod is connected with the inner wall of outer rigid pipe, and the other end stretches into telescopic cylinder. Common rigid sleeve lacks flexibility, and the displacement and deformation of pipeline in the operation process due to equipment vibration, thermal expansion and contraction and other factors cannot be effectively coped with. Compared with the prior art, the utility model sets the flexible pipe on the pipeline, so that the flexible pipe can buffer and shock absorption for the pipeline, and avoid the pipeline damage.

Description

Technical Field

[0001] This utility model relates to the field of pipeline technology, and in particular to a flexible sleeve for a water pump. Background Technology

[0002] In the field of mechanical engineering, piping systems are an indispensable component of numerous industrial facilities and civil buildings. With the continuous development of industry and the increasing demands for quality of life, piping systems face increasingly complex operating environments and higher performance requirements. In many scenarios involving liquid transportation, such as water supply, drainage, and chemical fluid transport, pump pipelines need to possess good flexibility and protective properties to adapt to different installation conditions and withstand various possible external impacts.

[0003] A common practice is to use a rigid sleeve made of a single material, which is directly wrapped around the outside of the water pump pipe to provide some protection for the pipe.

[0004] However, rigid sleeves lack flexibility and cannot effectively cope with the displacement and deformation of pipelines caused by equipment vibration, thermal expansion and contraction, etc. during operation. This can easily lead to gaps or even cracks between the sleeve and the pipeline, thus affecting the stability of the pipeline. Utility Model Content

[0005] In view of the technical problems of the prior art, this utility model provides a flexible sleeve for water pumps.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] A flexible sleeve for a water pump includes: an inner flexible tube, an outer flexible tube, an outer rigid tube, and a connecting rod; the inner flexible tube is disposed inside the outer flexible tube; the outer flexible tube is disposed inside the outer rigid tube; a cavity is provided between the inner flexible tube and the outer flexible tube; the connecting rod includes: a telescopic rod, a support rod, and a telescopic cylinder; the telescopic cylinder passes through the side wall of the outer flexible tube; one end of the telescopic rod is connected to the outer wall of the inner flexible tube, and the other end extends into the telescopic cylinder; one end of the support rod is connected to the inner wall of the outer rigid tube, and the other end extends into the telescopic cylinder.

[0008] Furthermore, it also includes: an end cap; a limit block on the inner wall of the outer rigid tube; a positioning port on the limit block; a positioning block on one side of the end cap; and the positioning block matching the positioning port.

[0009] Furthermore, the end cap includes: a base plate, a connecting plate, a rotating rod, and an insert rod; a slot is formed on the base plate; one end of the rotating rod is rotatably disposed in the connecting plate, and the other end is provided with a positioning plate; a positioning hole is formed on the positioning plate; the insert rod can extend and retract through the positioning hole; the insert rod matches the slot.

[0010] Furthermore, the connecting rod also includes: a spring and an abutment plate; the abutment plate is disposed inside the telescopic cylinder; one end of the spring is connected to the end of the support rod away from the inner flexible tube, and the other end is connected to the abutment plate.

[0011] Furthermore, the outer rigid tube also includes: a screw barrel; a screw groove is opened on the inner side of the screw barrel; the support rod is threaded on the side away from the outer flexible tube, and the thread matches the screw groove; the threaded side of the support rod extends into the screw barrel, and the other side is rotatably connected to the contact plate.

[0012] Furthermore, a rotating rod is provided on the side wall of the support rod; the rotating rod is located between the screw cylinder and the telescopic cylinder.

[0013] Furthermore, a gasket is provided on the side of the telescopic rod near the inner flexible tube; the gasket is connected to the inner flexible tube.

[0014] The beneficial effects of this utility model are: by sleeved on the pipeline, the flexible tube can buffer and dampen the pipeline when it vibrates or deforms, thus preventing damage to the pipeline and ensuring its stability. Attached Figure Description

[0015] Figure 1 : A schematic diagram of the structure of this utility model;

[0016] Figure 2 : A schematic diagram of the structure of this utility model after removing the end caps;

[0017] Figure 3 : Structural diagram of the connecting rod;

[0018] Figure 4 : Partial structural cross-sectional view of the connecting rod;

[0019] Figure 5 : Schematic diagram of the end cap structure.

[0020] In the diagram: 1. Inner flexible tube; 2. Outer flexible tube; 3. Outer rigid tube; 31. Limiting block; 311. Positioning port; 32. Screw barrel; 4. Connecting rod; 41. Telescopic rod; 411. Gasket; 42. Support rod; 421. Rotating rod; 43. Telescopic cylinder; 44. Spring; 45. Contact plate; 5. End cap; 51. Base plate; 52. Connecting plate; 53. Rotating rod; 531. Positioning plate; 54. Insert rod; 55. Positioning block. Detailed Implementation

[0021] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0022] according to Figure 1-5This utility model provides a flexible sleeve for a water pump, comprising: an inner flexible tube 1, an outer flexible tube 2, an outer rigid tube 3, and a connecting rod 4.

[0023] The inner flexible tube 1 is disposed inside the outer flexible tube 2. The outer flexible tube 2 is disposed inside the outer rigid tube 3. A cavity is left between the inner flexible tube 1 and the outer flexible tube 2. A cavity is left between the outer flexible tube 2 and the outer rigid tube 3. The connecting rod 4 includes: a telescopic rod 41, a support rod 42, and a telescopic cylinder 43. The telescopic cylinder 43 passes through the side wall of the outer flexible tube 2. One end of the telescopic rod 41 is connected to the outer wall of the inner flexible tube 1, and the other end extends into the telescopic cylinder 43. One end of the support rod 42 is connected to the inner wall of the outer rigid tube 3, and the other end extends into the telescopic cylinder 43. The connecting rod 4 is provided at both ends of this utility model.

[0024] In use, this invention utilizes an inner flexible tube 1 fitted onto a pipe to buffer and dampen vibrations when the pipe shifts or deforms. An outer rigid tube 3 is positioned externally to reduce the impact of external factors on the relatively fragile flexible tube. An outer flexible tube 2 is positioned between the inner flexible tube 1 and the outer rigid tube 3 to disperse some of the vibrations received by the inner flexible tube 1, further improving overall stability and durability. Cavities are provided between the inner flexible tube 1 and the outer flexible tube 2, and between the outer flexible tube 2 and the outer rigid tube 3, reducing the propagation of noise during vibration and providing buffer space when the inner and outer flexible tubes 1 and 2 deform, resulting in better adaptability.

[0025] It also includes: an end cap 5. A limiting block 31 is formed on the inner wall of the outer rigid tube 3. A positioning port 311 is formed on the limiting block 31. A positioning block 55 is provided on one side of the end cap 5. The positioning block 55 matches the positioning port 311. The end cap 5 includes: a base plate 51, a connecting plate 52, a rotating rod 53, and an insert rod 54. A slot is formed on the base plate 51. One end of the rotating rod 53 is rotatably disposed in the connecting plate 52, and the other end is provided with a positioning plate 531; a positioning hole is formed on the positioning plate 531. The insert rod 54 can extend and retract through the positioning hole. The insert rod 54 matches the slot. The connecting rod 4 also includes: a spring 44 and an abutment plate 45. The abutment plate 45 is disposed in the telescopic cylinder 43. One end of the spring 44 is connected to the end of the support rod 42 away from the inner flexible tube 1, and the other end is connected to the abutment plate 45. The outer rigid tube 3 also includes: a screw barrel 32. A screw groove is formed on the inner side of the screw barrel 32. The support rod 42 has a thread on the side away from the outer flexible tube 2, and the thread matches the threaded groove. The threaded side of the support rod 42 extends into the screw cylinder 32, and the other side is rotatably connected to the contact plate 45. A rotating rod 421 is provided on the side wall of the support rod 42. The rotating rod 421 is located between the screw cylinder 32 and the telescopic cylinder 43. A gasket 411 is provided on the side of the telescopic rod 41 near the inner flexible tube 1. The gasket 411 is connected to the inner flexible tube 1.

[0026] The connecting rod 4 connects the three layers of pipes of this utility model together. A spring 44 is provided between the support rod 42 and the contact plate 45 to further enhance the buffering performance, allowing the inner flexible tube 1 to better cope with vibration and pressure changes. One end of the support rod 42 extends into the screw cylinder 32, and the other end abuts against the contact plate 45. When the support rod 42 is screwed into the screw cylinder 32, it will drive the contact plate 45 to move closer to the screw cylinder 32, causing the spring to stretch. This causes the telescopic rod 41 to pull the inner flexible tube 1 towards the outer flexible tube 2, thus reducing the pressure on the inner flexible tube 1. Conversely, when the support rod 42 is screwed out of the screw cylinder 32, it will increase the pressure on the inner flexible tube 1. The position of the support rod 42 can be adjusted by rotating the rod 421 to change the pressure between the inner flexible tube 1 and the pipe, so as to adjust according to the pipe load. Meanwhile, since the inner flexible tube 1 needs to be tightly attached to the pipe for cushioning, the friction between the two is relatively large when the inner flexible tube 1 is fitted onto the pipe, making the fitting process somewhat cumbersome. At this point, the position of the support rod 42 can be adjusted to stretch the inner flexible tube 1 outwards, reducing the friction. After fitting, further adjustments can be made to bring the pressure between the inner flexible tube 1 and the pipe back to a suitable level. The end cap 5 provided in this invention allows the positioning block 55 to extend into the positioning port 311, fixing the end cap 5 at both ends of this invention to cover the cavity and prevent excessive impurities from entering. Since the rotating rod 421 is inside the cavity, it is necessary to adjust the rotating rod 421 first, and then use the end cap 5 for sealing. When the pipe passes through the end cap 5, some pipes have special shapes, and the end cap can only be moved to the flexible tube from one end, not the other. This utility model divides the end cap 5 into two sides. When using the end cap 5, the positioning block 55 on the base plate 51 can be inserted into the positioning port 311 from the side wall of the pipe, and then the positioning block 55 on the connecting plate 52 can be inserted into the positioning port 311. Then, the rotating rod 53 is rotated, so that the positioning plate 531 drives the insertion rod 54 to the slot, and the insertion rod 54 is inserted into the slot, so that the base plate 51 and the connecting plate 52 are fixed together. The side sealing makes the end cap applicable to a variety of pipes, and its versatility is wider. A gasket 411 is provided on the side of the telescopic rod 41 near the inner flexible tube 1, so that the contact area between the telescopic rod 41 and the inner flexible tube 1 is larger, and the inner flexible tube is not damaged due to excessive local pressure.

[0027] Working principle and usage process of this utility model:

[0028] When this utility model needs to be fitted onto a pipe, firstly, the rotating rod 421 is rotated, causing the support rod 42 to be screwed into the screw cylinder 32 by a portion, which drives the contact plate 45 to move closer to the screw cylinder 32, causing the spring 44 to be stretched, and the telescopic rod 41 to stretch the inner flexible tube 1 to a certain extent. Then, the inner flexible tube 1 is fitted onto the pipe, and the rotating rod 421 is adjusted so that the support rod 42 is screwed out of the screw cylinder 32 by a portion. Similarly, the spring 44 is compressed and the inner flexible tube 1 is pressed against the pipe to a certain extent. Then, the positioning block 55 of the base plate 51 is inserted into the positioning port 311, and the positioning block 55 on the connecting plate 52 is inserted into the positioning port 311. Then, the rotating rod 53 is rotated, causing the positioning plate 531 to drive the insertion rod 54 to the slot, and the insertion rod 54 is inserted into the slot, so that the base plate 51 and the connecting plate 52 are fixed together.

[0029] In summary, this utility model, by sleeved on the pipeline, enables the flexible tube to buffer and dampen vibrations when the pipeline vibrates or deforms, thus preventing damage to the pipeline.

[0030] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A flexible sleeve for a water pump, characterized in that: include: Inner flexible tube, outer flexible tube, outer rigid tube, connecting rod; The inner flexible tube is disposed inside the outer flexible tube; The outer flexible tube is disposed inside the outer rigid tube; A cavity is left between the inner flexible tube and the outer flexible tube; A cavity is left between the outer flexible tube and the outer rigid tube; The connecting rod includes: a telescopic rod, a support rod, and a telescopic cylinder; The telescopic cylinder passes through the sidewall of the outer flexible tube; One end of the telescopic rod is connected to the outer wall of the inner flexible tube, and the other end extends into the telescopic cylinder; one end of the support rod is connected to the inner wall of the outer rigid tube, and the other end extends into the telescopic cylinder.

2. The flexible sleeve for a water pump as described in claim 1, characterized in that: Also includes: end caps; A limit block is provided on the inner wall of the outer rigid tube; The limiting block has a positioning port; A positioning block is provided on one side of the end cap; The positioning block is matched with the positioning port.

3. The flexible sleeve for a water pump as described in claim 2, characterized in that: The end cap includes: a base plate, a connecting plate, a rotating rod, and an insert rod; The substrate has slots; One end of the rotating rod is rotatably mounted inside the connecting plate, and the other end is provided with a positioning plate; The positioning plate has positioning holes; The insertion rod is retractable and can pass through the positioning hole; The insert matches the slot.

4. The flexible sleeve for a water pump as described in claim 1, characterized in that: The connecting rod also includes: a spring and a contact plate; The contact plate is disposed inside the telescopic cylinder; One end of the spring is connected to the end of the support rod away from the inner flexible tube, and the other end is connected to the contact plate.

5. A flexible sleeve for a water pump as described in claim 4, characterized in that: The outer rigid tube also includes: a screw cylinder; The inner side of the screw barrel has a screw groove; The support rod is threaded on the side away from the outer flexible tube, and the thread matches the thread groove; The support rod has a threaded side that extends into the screw cylinder, and the other side is rotatably connected to the abutment plate.

6. A flexible sleeve for a water pump as described in claim 5, characterized in that: A rotating rod is provided on the side wall of the support rod; The rotating rod is positioned between the screw cylinder and the telescopic cylinder.

7. A flexible sleeve for a water pump as described in claim 1, characterized in that: The telescopic rod is provided with a gasket on the side near the inner flexible tube; The gasket is connected to the inner flexible tube.

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