Centrifugal pump with adjustable height

Abstract

The utility model discloses a centrifugal pump with adjustable height, which comprises a base, a pump body arranged at the top of the base, a flange plate arranged at the water inlet end of the pump body, and a cushioning component comprising a support ring arranged at the bottom of the flange plate, a movable sleeve arranged at the bottom of the support ring, an adjusting box connected with the bottom of the movable sleeve in a penetrating manner, friction parts are arranged on the outer sides of the movable sleeves, compression springs are arranged in inner cavities of the movable sleeves, and supporting parts are arranged at the bottoms of the adjusting boxes; the adjusting assembly comprises a movable ring arranged at the bottom of the compression spring, a threaded rod is connected to the middle of the movable ring in a threaded penetrating mode, and a driving part is arranged in an inner cavity of the adjusting box; an operator rotates the driving part to drive the threaded rod in the adjusting box to rotate, the threaded rod is rotated to drive the movable ring to adjust the compression spring, the height of the supporting ring is adjusted, and therefore the supporting part supports and buffers water suction pipelines with different diameters.

Description

Technical Field

[0001] This utility model relates to the field of centrifugal pump technology, and in particular to a height-adjustable centrifugal pump. Background Technology

[0002] During the installation and use of traditional horizontal centrifugal pumps, the connection of the pump body suction port flange is often affected by the vibration and impact force brought about by fluid movement. Long-term vibration not only generates noise, but may also lead to pump body structural fatigue, causing loosening or even damage to bolts and other connecting parts, reducing the stability and service life of the system.

[0003] To solve the above problems, a support and shock-absorbing component that can adjust the support height according to the actual diameter of the water pump suction pipe needs to be installed at the suction port flange position to absorb and reduce these vibrations and impacts, and prevent them from affecting the stability of the connection between the suction pipe and the suction port flange. Therefore, to solve this problem, a new type of height-adjustable centrifugal pump is needed. Utility Model Content

[0004] The purpose of this invention is to provide a height-adjustable centrifugal pump to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a height-adjustable centrifugal pump, including a base, a pump body disposed on the top of the base, a flange disposed at the water inlet end of the pump body, and further comprising:

[0006] A shock-absorbing assembly includes a support ring disposed at the bottom of a flange, a movable sleeve disposed at the bottom of the support ring, an adjustment box inserted into the bottom of the movable sleeve, a friction part disposed on the outer side of the movable sleeve, a compression spring disposed in the inner cavity of the movable sleeve, and a support part for connecting to a base disposed at the bottom of the adjustment box.

[0007] An adjustment assembly is provided for adjusting the initial height of a compression spring. The adjustment assembly includes a movable ring disposed on the inner wall of a movable sleeve and located at the bottom of the compression spring. A threaded rod is threadedly connected to the middle of the movable ring. The inner cavity of the adjustment box is provided with a drive unit for rotating the threaded rod.

[0008] Preferably, the drive unit includes a worm gear that is inserted into the side of the adjustment box, and a worm wheel is engaged on the side of the worm gear and inside the adjustment box, and the middle part of the worm wheel is inserted into the outer side of the bottom end of the threaded rod.

[0009] Preferably, one end of the worm gear is provided with an internal hexagonal slot for the rotation of the worm gear, and the other end of the worm gear is provided with a limit block for limiting the worm gear.

[0010] Preferably, a limiting ring is provided on the inner wall of the top of the movable sleeve, and the limiting ring is used to limit the compression spring.

[0011] Preferably, a bearing is provided at the point where the threaded rod intersects with the inner wall of the adjusting box.

[0012] Preferably, the friction part includes a damping ring disposed on the outside of the movable sleeve, and the damping ring is disposed inside the adjustment box.

[0013] Preferably, the outer side of the movable sleeve is symmetrically provided with limiting protrusions, which are used to rotate and limit the movable sleeve.

[0014] Preferably, the support includes a support plate disposed at the bottom of the adjustment box, the support plate being fixedly connected to the side of the base, and the bottom of the support plate being provided with auxiliary feet.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] This utility model has a support part on the side of the base at the bottom of the pump body. The support part is used to fix the position of the support ring, the movable sleeve and the adjustment box. The operator drives the threaded rod inside the adjustment box to rotate by rotating the drive part. The rotating threaded rod drives the movable ring to adjust the compression spring, thereby adjusting the height of the support ring. This allows the support part to support and dampen the water suction pipes of different diameters. Attached Figure Description

[0017] Figure 1 This is one of the overall structural schematic diagrams of this utility model.

[0018] Figure 2 The second schematic diagram shows the overall structure of this utility model.

[0019] Figure 3 This utility model Figure 2 Enlarged view of the structure at point A in the middle.

[0020] Figure 4 This is a cross-sectional view of the adjustment component of this utility model.

[0021] Figure 5 This is a cross-sectional view of the drive unit of this utility model.

[0022] In the diagram: 1. Base; 2. Pump body; 201. Flange; 3. Support ring; 4. Movable sleeve; 401. Limiting ring post; 402. Damping ring; 403. Limiting protrusion; 5. Adjusting box; 6. Compression spring; 7. Adjusting assembly; 701. Movable ring; 702. Threaded rod; 703. Worm gear; 7031. Socket hexagonal slot block; 7032. Limiting block; 704. Worm gear; 705. Bearing; 8. Support plate; 801. Auxiliary foot. Detailed Implementation

[0023] 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.

[0024] This utility model provides, for example Figure 1-5 The centrifugal pump shown includes a base 1, a pump body 2 on the top of the base 1, a flange 201 at the water inlet end of the pump body 2, and also includes a shock-absorbing component and an adjustment component 7.

[0025] It should be noted that the working principle of the pump body 2 is based on that of the ISW horizontal centrifugal pump. The pump body 2 and the flange 201 are fixed by welding. The flange 201 is connected to the suction pipe. Due to the pressure difference, the connection between the suction pipe and the flange 201 will vibrate continuously, which will affect the stability of the bolts at the flange 201 connection.

[0026] Specifically, the shock absorption assembly includes a support ring 3 located at the bottom of the flange 201, a movable sleeve 4 located at the bottom of the support ring 3, an adjustment box 5 inserted into the bottom of the movable sleeve 4, a friction part located on the outer side of the movable sleeve 4, a compression spring 6 located in the inner cavity of the movable sleeve 4, and a support part for connecting the base 1 located at the bottom of the adjustment box 5.

[0027] It should be noted that the support ring 3 is made of rubber and is fixed to the movable sleeve 4 with glue.

[0028] Specifically, the support part includes a support plate 8 disposed at the bottom of the adjustment box 5, the support plate 8 is fixedly connected to the side of the base 1, and the bottom of the support plate 8 is provided with an auxiliary foot 801. The friction part includes a damping ring 402 disposed on the outside of the movable sleeve 4, and the damping ring 402 is disposed inside the adjustment box 5.

[0029] It should be noted that the adjustment box 5 and the support plate 8 are fixed by welding, the side of the support plate 8 is fixed to the base 1 by bolts, and the auxiliary foot 801 is fixed to the bottom of the support plate 8 by welding. The auxiliary foot 801 is used to support the support plate 8 and prevent the bolt connection between it and the base 1 from loosening.

[0030] Specifically, the adjusting component 7 is used to adjust the initial height of the compression spring 6. The adjusting component 7 includes a movable ring 701 disposed on the inner wall of the movable sleeve 4 and located at the bottom of the compression spring 6. A threaded rod 702 is threadedly connected to the middle of the movable ring 701.

[0031] It should be noted that the inner cavity of the movable sleeve 4 has a rectangular cross section, and the movable ring 701 is a rectangular ring with a thread on its inner wall for the threaded rod 702 to pass through. The top inner wall of the movable sleeve 4 is provided with a limiting ring post 401, which is used to limit the compression spring 6. Due to the limitation of the shape of the movable ring 701, the movable ring 701 cannot rotate. The rotating threaded rod 702 drives the movable ring 701 to move in the inner cavity of the movable sleeve 4 through the thread.

[0032] Specifically, a bearing 705 is provided at the intersection of the threaded rod 702 and the inner wall of the adjusting box 5. A cylindrical groove for the bearing 705 to pass through is provided on the inner wall of the adjusting box 5. The inner wall of the cylindrical groove is glued to the outer side of the bearing 705. The middle part of the bearing 705 is welded to the outer side of the threaded rod 702. The limiting ring column 401 is welded to the inner wall of the movable sleeve 4. The threaded rod 702 can enter the middle part of the limiting ring column 401 after the compression spring 6 is deformed by compression.

[0033] It should be noted that the movable sleeve 4 is symmetrically provided with limiting protrusions 403 on the outer side. The limiting protrusions 403 are used to rotate and limit the movable sleeve 4. The limiting protrusions 403 can move up and down inside the adjusting box 5 to prevent the movable sleeve 4 from rotating in the adjusting box 5.

[0034] The inner cavity of the adjusting box 5 is provided with a drive unit for rotating the threaded rod 702;

[0035] Specifically, the drive unit includes a worm 703 that is inserted and connected to the side of the adjustment box 5. A worm wheel 704 is engaged on the side of the worm 703 and inside the cavity of the adjustment box 5. The middle part of the worm wheel 704 is inserted and connected to the outer side of the bottom end of the threaded rod 702.

[0036] It should be noted that one end of the worm 703 is provided with an internal hexagonal slot block 7031, which is used for the rotation of the worm 703. The other end of the worm 703 is provided with a limit block 7032, which is used to limit the position of the worm 703. The connection between the worm 703 and the internal hexagonal slot block 7031 and the limit block 7032 is fixed by welding. The internal hexagonal slot block 7031 and the limit block 7032 can limit the position of the worm 703.

[0037] Specifically, the connection between the worm 703 and the worm wheel 704 is threaded, while the rest of the parts are smooth curved surfaces. The middle part of the worm wheel 704 is fixed to the outer side of the threaded rod 702 by welding.

[0038] In actual use, a support part is provided on the side of the base 1 at the bottom of the pump body 2. The support part is used to fix the position of the support ring 3, the movable sleeve 4 and the adjustment box 5. The operator drives the threaded rod 702 inside the adjustment box 5 to rotate by rotating the drive part. The rotating threaded rod 702 drives the movable ring 701 to move up and down in the movable sleeve 4, thereby adjusting the position and height of the compression spring 6, thereby changing the rebound force of the movable sleeve 4 after being compressed, and realizing the adjustment of the height of the support ring 3. Thus, the support part can support and dampen the water suction pipes of different diameters.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A height-adjustable centrifugal pump, comprising a base (1), a pump body (2) disposed on the top of the base (1), and a flange (201) disposed at the water inlet end of the pump body (2), characterized in that, Also includes: The shock-absorbing assembly includes a support ring (3) disposed at the bottom of the flange (201), a movable sleeve (4) disposed at the bottom of the support ring (3), an adjustment box (5) inserted and connected at the bottom of the movable sleeve (4), a friction part disposed on the outer side of the movable sleeve (4), a compression spring (6) disposed in the inner cavity of the movable sleeve (4), and a support part for connecting the base (1) disposed at the bottom of the adjustment box (5). Adjustment component (7) is used to adjust the initial height of compression spring (6). The adjustment component (7) includes a movable ring (701) disposed on the inner wall of movable sleeve (4) and located at the bottom of compression spring (6). A threaded rod (702) is threadedly connected to the middle of the movable ring (701). The inner cavity of the adjustment box (5) is provided with a drive part for driving the threaded rod (702) to rotate.

2. The height-adjustable centrifugal pump according to claim 1, characterized in that, The drive unit includes a worm gear (703) that is inserted into the side of the adjustment box (5). A worm wheel (704) is engaged on the side of the worm gear (703) and inside the cavity of the adjustment box (5). The middle part of the worm wheel (704) is inserted into the outer side of the bottom end of the threaded rod (702).

3. A height-adjustable centrifugal pump according to claim 2, characterized in that, One end of the worm (703) is provided with an internal hexagonal slot block (7031), which is used for the rotation of the worm (703). The other end of the worm (703) is provided with a limit block (7032), which is used to limit the worm (703).

4. A height-adjustable centrifugal pump according to claim 1, characterized in that, The movable sleeve (4) is provided with a limiting ring post (401) on the inner wall of the top, and the limiting ring post (401) is used to limit the compression spring (6).

5. A height-adjustable centrifugal pump according to claim 1, characterized in that, A bearing (705) is provided at the intersection of the threaded rod (702) and the inner wall of the adjusting box (5).

6. A height-adjustable centrifugal pump according to claim 1, characterized in that, The friction part includes a damping ring (402) disposed on the outside of the movable sleeve (4), and the damping ring (402) is disposed inside the adjusting box (5).

7. A height-adjustable centrifugal pump according to claim 1, characterized in that, The movable sleeve (4) is symmetrically provided with limiting protrusions (403) on its outer side, and the limiting protrusions (403) are used to rotate and limit the movable sleeve (4).

8. A height-adjustable centrifugal pump according to claim 1, characterized in that, The support includes a support plate (8) disposed at the bottom of the adjustment box (5), the support plate (8) is fixedly connected to the side of the base (1), and the bottom of the support plate (8) is provided with an auxiliary foot (801).

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