Shockproof assembly and shockproof centrifugal pump structure

Abstract

The utility model discloses a shockproof assembly and a shockproof centrifugal pump structure, and belongs to the technical field of pumps and shock absorption supports for the pumps. The shockproof assembly comprises a rubber hose and first flange plates arranged at the two ends of the rubber hose respectively, the rubber hose comprises a first ball part, inner concave rings, a flange and a second ball part, the two ends of the first ball part axially extend to form the inner concave rings respectively, and the ends, away from the first ball part, of the inner concave rings extend outwards in the radial direction to form the flange; a second ball part is arranged at the end, away from the inner concave ring, of the turned edge, and the first flange plate is located at the inner concave ring. The shockproof centrifugal pump structure comprises a shockproof assembly and further comprises a pump body, a medium outlet is formed in the pump body, and the medium outlet is connected with the water pipeline through the shockproof assembly. The damping device can achieve a good damping effect, provides protection for connection of the pump body and a water pipeline, and prolongs the service life of the pump body and the water pipeline.

Description

Technical Field

[0001] The utility model relates to a shock-proof component and a shock-proof centrifugal pump structure, belonging to the technical field of pumps and shock-absorbing brackets for pumps. Background Technique

[0002] A water pump is a machine that transports liquids or increases the pressure of liquids. It transmits the mechanical energy of the prime mover or other external energy to the liquid, increasing the energy of the liquid. It is mainly used to transport liquids such as water, oil, acid-base solutions, emulsions, suspension liquids, and liquid metals. It can also transport liquid-gas mixtures and liquids containing suspended solids. A centrifugal pump is a type of water pump. It lifts water to a higher place due to the centrifugal force generated by the high-speed rotation of the impeller, so it is called a centrifugal pump. When a centrifugal pump is in use, different pipes need to be connected to its inlet and outlet. During the operation of the centrifugal pump, vibrations will occur, and the vibrations are stronger closer to the pump body. The vibrations during the operation of the centrifugal pump will affect the use of its connection with the pipeline. During the operation process, there will be a problem of large vibrations in the pump outlet pipeline. The pipeline bends and welds are often torn, and the bolts of the pipeline fixing pressing plate may also break.

[0003] In a water pump system, the inlets and outlets of the water pump play the role of connecting the pipeline and the water pump, and their stability is crucial for the operation efficiency and safety of the water pump system. Installing shock-absorbing expansion joints at the inlets and outlets of the pump can reduce the vibrations and noises of the pipeline system. Traditional shock-absorbing compensators for pump inlets and outlets generally use stainless steel corrugated compensators. Currently, a rubber flexible joint is often installed at the inlets and outlets of the water pump to control and reduce the vibrations and noises generated during the operation of the water pump.

[0004] The rubber flexible joint is composed of a tubular rubber vulcanized and formed under high temperature and high pressure and loosely sleeved with a metal flange. The existing structure of the rubber flexible joint is too simple, the installation with the pipeline and the pump body is not firm, and the sealing performance at the connection is poor. Since the rubber flexible joint is made of rubber, the soft joint will shift after connection, and large displacements and impacts may occur at both ends of the joint for the pipeline and the pump body. During the later use, leakage is likely to occur. In addition, under long-term use, it is easy to cause insufficient toughness of the rubber flexible joint, resulting in bending, even cracking and damage of the rubber flexible joint, shortening the service life of the soft joint. Summary of the Invention

[0005] In order to overcome the above-mentioned deficiencies of the prior art, the utility model provides a shock-proof component and a shock-proof centrifugal pump structure.

[0006] The technical solution adopted by the present utility model is as follows: A shock-proof component is designed, which includes a rubber hose and first flange plates respectively arranged at both ends of the rubber hose. A flow channel penetrating the rubber hose is arranged in the middle of the rubber hose. The rubber hose includes a first spherical part, an inner concave ring, a flange, and a second spherical part. Inner concave rings extend axially from both ends of the first spherical part respectively. One end of the inner concave ring far away from the first spherical part extends radially outwards to form a flange. A second spherical part is arranged at one end of the flange far away from the inner concave ring. The first flange plate is located at the inner concave ring.

[0007] Further, dense arc-shaped convex strips are arranged on the outer surface of the first spherical part, and the arc-shaped convex strips are arranged in a circumferential array along the first spherical part.

[0008] Further, an annular groove is arranged on one side surface of the flange far away from the inner concave ring, and a sealing ring is arranged in the annular groove.

[0009] Further, this design also includes a positioning rod and a locking nut. At least two ear plates are arranged on the first flange plate, and positioning holes are opened on the ear plates. The ear plate positioning holes of the two first flange plates are aligned and the positioning rod is passed through. Locking nuts are respectively arranged on the rod bodies of each end of the positioning rod on the upper and lower sides of the corresponding ear plates.

[0010] The present utility model also discloses a shock-proof centrifugal pump structure, which is used in connection with a water pipe. It includes the shock-proof component described above, and also includes a pump body. A medium outlet is arranged on the pump body, and the medium outlet is connected to the water pipe through the shock-proof component. When in use, all the locking nuts on the shock-proof component are loosened or the positioning rod is removed.

[0011] Further, a second flange plate is arranged on the medium outlet, and a third flange plate is arranged on the water pipe. The first flange plates at both ends of the rubber hose are respectively connected and fixed to the second flange plate and the third flange plate through multiple groups of bolt assemblies. The flanges at both ends of the rubber hose are respectively closely attached to the corresponding end faces of the second flange plate and the third flange plate.

[0012] Further, the second spherical parts at both ends of the rubber hose respectively extend into the medium inlet and the water pipe, and their diameters are not less than the diameters of the medium inlet and the water pipe.

[0013] Furthermore, it also includes rubber reinforcement parts. Multiple rubber reinforcement parts are arranged between the first flange plates at both ends of the rubber hose. The rubber reinforcement parts are of a C-shaped structure, and reinforcement holes are respectively opened on the wing plates at both ends. The wing plates at the ends of the rubber reinforcement parts are fixed in the bolt assemblies adjacent to the first flange plates.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] With the provision of the second spherical part in the rubber hose of the present utility model, when in use, it is clamped into the medium inlet and outlet of the pipeline or pump body, so that the sealing performance at the connection with the pipeline and pump body is good. Even if the hose is offset after connection, resulting in large displacements and impacts that may occur at both ends of the rubber hose between the pipeline and the pump body, the second spherical part can always firmly fit the inner wall of the medium inlet and outlet of the pipeline or pump body, and it is not prone to leakage during long-term use.

[0016] In addition, with the provision of the arc-shaped convex strip and the rubber reinforcement in the present utility model, the installation of the rubber hose with the pipeline and pump body is more firm, which can share the pressure for it. After long-term use, the rubber hose can also maintain good toughness due to being protected from impact and reduced impact, and it is not easy to cause bending, even cracking, damage, etc. of the rubber hose, thus improving the service life of the rubber hose.

[0017] The present utility model can also well protect the pump body and the pipeline structure connected thereto, making it not easily damaged by vibration. Moreover, the rubber hose has a high internal density, can withstand high pressure, has good elastic deformation effect, while reducing vibration, reducing noise, having good stretchability, and is convenient to use. It not only improves the stability and safety of the entire pump body pipeline system, but also extends the service life of the pump and pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic isometric view of the shock-proof component of the present utility model.

[0020] Figure 2 It is a schematic cross-sectional view of the shock-proof component of the present utility model.

[0021] Figure 3 It is a schematic view of the shock-proof component of the present utility model with a rubber reinforcement added, etc.

[0022] Figure 4 It is a schematic structural view of the shock-proof centrifugal pump of the present utility model.

[0023] In the figure: 1. Rubber hose; 2. First flange; 3. Flow channel; 4. First spherical part; 5. Concave ring; 6. Flange; 7. Second spherical part; 8. Arc-shaped convex strip; 9. Sealing ring; 10. Positioning rod; 11. Locking nut; 12. Ear plate; 13. Water pipe; 14. Pump body; 15. Medium outlet; 16. Second flange; 17. Third flange; 18. Rubber reinforcement. Detailed implementation manners

[0024] For the purposes of making the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the scope of protection of the present utility model.

[0025] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, if the terms "installation", "connection" and "connection" are used, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0026] Embodiment 1

[0027] As Figure 1 and Figure 2 shown, a shock-proof assembly includes a rubber hose 1 and first flange plates 2 respectively arranged at both ends of the rubber hose 1. A flow channel 3 penetrating through the rubber hose 1 is arranged in the middle of the rubber hose 1. All of these are prior arts and will not be elaborated herein. In this embodiment, the rubber hose 1 includes a first spherical portion 4, an inner concave ring 5, a flanging 6 and a second spherical portion 7. Axial extensions of one inner concave ring 5 are respectively arranged at both ends of the first spherical portion 4. A radially outward extension of the end of the inner concave ring 5 away from the first spherical portion 4 forms a flanging 6. A second spherical portion 7 is arranged at the end of the flanging 6 away from the inner concave ring 5. The first flange plate 2 is located at the inner concave ring 5. During use, both ends of the rubber hose 1 are respectively connected to a pipeline or a pump body 14. At this time, the second spherical portion 7 is clamped into the inlet and outlet of the pipeline or the pump body 14 to form a seal. Even if the devices at both ends of the rubber hose 1 are displaced, the second spherical portion 7 can deform accordingly and maintain good sealing performance.

[0028] Embodiment 2

[0029] This embodiment is a further optimization and refinement of the structure of the rubber hose 1 on the basis of Embodiment 1. Specifically:[[]]

[0030] The outer surface of the first spherical portion 4 is provided with dense arc-shaped ridges 8 which are arranged in a circumferential array along the first spherical portion 4, strengthening the toughness of the rubber hose 1, making its tolerance better and not easily damaged. The arc-shaped ridges 8 can also protect the outer surface of the first spherical portion 4 to prevent scratching the surface of the rubber hose 1 during processes such as screwing bolts.

[0031] Embodiment 3

[0032] This embodiment is a further optimization and refinement of the structure of the rubber hose 1 on the basis of Embodiment 2, specifically:

[0033] On the surface of the flanging 6 away from the concave ring 5, there is an annular groove, and a sealing ring 9 is arranged in the annular groove, further strengthening the sealing performance when the rubber hose 1 is connected to an external pipeline or a pump body 14.

[0034] Embodiment 4

[0035] This embodiment is a further optimization and refinement of the structure of the shock-proof component on the basis of Embodiment 3, specifically:

[0036] The shock-proof component in this embodiment further includes a positioning rod 10 and a locking nut 11. Four ear plates 12 are arranged in an array on the first flange 2. Positioning holes are provided on the ear plates 12. The positioning holes of the ear plates 12 of the two first flanges 2 are aligned and the positioning rod 10 is passed through. On each end of the positioning rod 10, locking nuts 11 are respectively arranged on the rod bodies on the upper and lower sides of the corresponding ear plates 12. The first flanges 2 are limited and aligned, facilitating the installation of the shock-proof component, etc.

[0037] Embodiment 5

[0038] As Figure 4 shown, this embodiment discloses a shock-proof centrifugal pump structure which is used in connection with a water pipe 13 and includes the above-mentioned shock-proof component. It further includes a pump body 14. A medium outlet 15 is provided on the pump body 14. The medium outlet 15 is connected to the water pipe 13 through the shock-proof component, thereby protecting the connection structure at the medium outlet 15 of the pump body 14. During use, all the locking nuts 11 on the shock-proof component are loosened or the positioning rod 10 is removed to prevent rigid damage caused by the positioning rod 10 and give full play to the protective effect of the shock-proof component.

[0039] Embodiment 6

[0040] This embodiment is a further optimization and refinement of the centrifugal pump structure on the basis of Embodiment 5, specifically:

[0041] For the shock-proof centrifugal pump structure described in this embodiment, a second flange 16 is provided on the medium outlet 15, and a third flange 17 is provided on the water pipe 13. The first flanges 2 at both ends of the rubber hose 1 are respectively connected and fixed to the second flange 16 and the third flange 17 through multiple bolt assemblies, with stable and reliable connection. The flanges 6 at both ends of the rubber hose 1 are closely attached to the corresponding end faces of the second flange 16 and the third flange 17, ensuring good sealing performance.

[0042] Embodiment 7

[0043] This embodiment is a further optimization and refinement of the centrifugal pump structure based on Embodiment 6, specifically as follows:

[0044] For the shock-proof centrifugal pump structure described in this embodiment, the second spherical parts 7 at both ends of the rubber hose 1 respectively extend into the medium inlet and the water pipe 13, and their diameters are not less than the diameters of the medium inlet and the water pipe 13 (the diameters of the medium inlet and the water pipe 13 are equal), ensuring good sealing performance for a long time and preventing leakage. It overcomes factors such as axial displacement, angular displacement, lateral displacement, and flange non-parallelism between pipes, ensuring connection sealing performance.

[0045] Embodiment 8

[0046] This embodiment is a further optimization and refinement of the centrifugal pump structure based on Embodiment 7, specifically as follows:

[0047] The shock-proof centrifugal pump structure described in this embodiment further includes a rubber reinforcement 18. As Figure 3 and Figure 4 shown, multiple rubber reinforcements 18 are arranged between the first flanges 2 at both ends of the rubber hose 1. The rubber reinforcement 18 is of a C-shaped structure, with reinforcement holes respectively opened on the wing plates at both ends. The wing plates at the ends of the rubber reinforcement 18 are fixed in the bolt assemblies adjacent to the first flange 2. It shares the burden of the rubber hose 1, protects the structure of the rubber hose 1, and extends its service life.

[0048] When using the shock-proof assembly of the present utility model, it is installed between the medium outlet 15 of the pump body 14 and the pipeline. After installation, the locking nut 11 needs to be loosened or the positioning rod 10 needs to be removed. During installation, the second spherical part 7 of the rubber hose 1 needs to be snapped into the corresponding pipeline or the medium inlet and outlet of the pump body 14.

[0049] In addition, in the description of the present utility model, unless otherwise specified, the terms "a plurality of", "multiple roots", "multiple groups" mean two or more, and the terms "several", "several roots", "several groups" mean one or more. In the description of the present utility model, it should be noted that for the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0050] The specific embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments, and various changes can be made without departing from the gist of the present utility model within the knowledge scope of those of ordinary skill in the art.

Claims

1. A shockproof assembly, comprising a rubber hose and first flanges respectively arranged at both ends of the rubber hose, wherein a flow channel penetrating the rubber hose is arranged in the middle of the rubber hose, characterized in that: The rubber hose includes a first ball portion, a concave ring, a flange and a second ball portion. A concave ring is axially extended from each of the two ends of the first ball portion. The end of the concave ring away from the first ball portion extends radially outward to form a flange. The second ball portion is arranged at the end of the flange away from the concave ring. The first flange is located at the concave ring.

2. The anti-vibration assembly according to claim 1, characterized in that: The outer surface of the first ball portion is provided with dense arc-shaped convex strips, and the arc-shaped convex strips are arranged in an array along the circumference of the first ball portion.

3. The anti-vibration assembly according to claim 2, characterized in that: An annular groove is arranged on a surface of the flange which is away from the inner concave ring, and a sealing ring is arranged in the annular groove.

4. The anti-vibration assembly according to claim 3, characterized in that: It also includes a positioning rod and a locking nut. At least two ear plates are arranged on the first flange, and positioning holes are opened on the ear plates. The ear plate positioning holes of the two first flanges are aligned and penetrated by the positioning rod. A locking nut is respectively arranged on the rod body on the upper and lower sides of the corresponding ear plate at each end of the positioning rod.

5. A shockproof centrifugal pump structure, used in connection with a water pipe, characterized in that: It includes the shockproof assembly as described in claim 4, and also includes a pump body, and the pump body is provided with a medium outlet, and the medium outlet is connected to the water pipe through the shockproof assembly. When in use, all locking nuts on the shockproof assembly are loosened or the positioning rod is removed.

6. The shockproof centrifugal pump structure according to claim 5, characterized in that: A second flange is provided on the medium outlet, a third flange is provided on the water pipe, the first flanges at both ends of the rubber hose are respectively connected and fixed to the second flange and the third flange by multiple groups of bolt assemblies, and the flanges at both ends of the rubber hose are respectively tightly attached to the corresponding end surfaces of the second flange and the third flange.

7. The shockproof centrifugal pump structure according to claim 6 is characterized in that: The second balls at both ends of the rubber hose extend into the medium inlet and the water pipe respectively, and the diameters of the second balls are not less than the diameters of the medium inlet and the water pipe.

8. The shockproof centrifugal pump structure according to claim 7, characterized in that: It also includes a rubber reinforcement piece. A plurality of rubber reinforcement pieces are arranged between the first flanges at both ends of the rubber hose. The rubber reinforcement piece is a C-shaped structure. Reinforcement holes are respectively provided on the wing plates at both ends. The wing plates at the ends of the rubber reinforcement piece are fixed in the bolt assemblies at the adjacent first flanges.

Images