Low-noise horizontal centrifugal pump

Abstract

The utility model relates to a low-noise horizontal centrifugal pump, which belongs to the technical field of centrifugal pumps and comprises a horizontal centrifugal pump body, a buffer structure and a shell are arranged below the horizontal centrifugal pump body, a moving mechanism is arranged inside the shell, and a supporting structure is arranged outside the shell. The moving mechanism comprises trundles, a gear motor, a lead screw and a mounting plate which are arranged in the shell, a sliding block which is in threaded connection with the exterior of the lead screw, and an adjusting rod which is hinged between the sliding block and the mounting plate; the supporting structure comprises a mounting table welded to the side wall of the shell and a rotating thread sleeve rotationally mounted on the mounting table. According to the low-noise horizontal centrifugal pump, the horizontal centrifugal pump body can be supported, it is guaranteed that the horizontal centrifugal pump body adapts to road surfaces with different flatness, the horizontal centrifugal pump body is stably placed, shaking is reduced, low noise is achieved, and therefore the advantages of being high in practicability, stable in placement and the like are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal pumps, in particular to a low-noise horizontal centrifugal pump. Background Technique

[0002] Horizontal centrifugal pumps are designed based on the principle of centrifugal force. The high-speed rotating impeller blades drive the water to rotate and throw the water out, thus achieving the purpose of transportation. There are many types of centrifugal pumps. From the perspective of use, they can be divided into civil and industrial pumps; from the perspective of the transported medium, they can be divided into clean water pumps, impurity pumps, corrosion-resistant pumps, etc. With the continuous development of the economy, horizontal centrifugal pumps are increasingly widely used in production projects due to their strong sewage discharge capacity, high efficiency, energy saving, and good self-priming performance. They can be applied to urban environmental protection, construction, fire protection, chemical industry, pharmaceuticals, dyeing and printing, brewing, electric power, electroplating, papermaking, petroleum, mining, equipment cooling, oil tanker unloading, etc. Horizontal centrifugal pumps are relatively large in volume, and the base is convenient to install on the ground. However, when transportation is required, they are not easy to move and need to be carried by operators, increasing the labor intensity of the operators.

[0003] After retrieval, the patent No. CN220667830U discloses a horizontal centrifugal pump, including: a base; four setting grooves are opened around the bottom of the base, a moving groove is arranged on one side of the inner cavity of the setting groove, an adjusting device is arranged inside the moving groove, and a moving device is threadedly engaged with the outer surface of the adjusting device; a limiting groove is opened on the other side of the inner cavity of the setting groove, and a sliding rod is fixedly installed inside the limiting groove. The utility model provides a horizontal centrifugal pump. By screwing the moving device downward through the adjusting device, the moving wheels are in contact with the ground and the base is suspended. After moving to a suitable position, the moving device is screwed upward through the adjusting device to retract into the setting groove, so that the base is in contact with the ground, which is convenient for installation. The device has a simple structure, strong practicability, and is convenient for operators to transport the horizontal centrifugal pump.

[0004] However, this horizontal centrifugal pump of the utility model lacks a support structure. Since horizontal centrifugal pumps are usually directly placed on the ground, when encountering uneven roads, direct placement will cause the center of gravity of the horizontal centrifugal pump to be unstable due to vibration during operation, posing a risk of the horizontal centrifugal pump tipping over, resulting in the distortion of the connecting water pipe and a slowdown in the flow rate. Therefore, it cannot meet the use requirements, so a low-noise horizontal centrifugal pump is proposed to solve the problems raised above. Content of the Utility Model

[0005] In view of the deficiencies of the prior art, the utility model provides a low-noise horizontal centrifugal pump, which has the advantages of strong practicability and stable placement, and solves the problem that when encountering uneven roads, direct placement will cause the center of gravity of the horizontal centrifugal pump to be unstable due to vibration during operation, posing a risk of the horizontal centrifugal pump tipping over.

[0006] To achieve the above object, the utility model provides the following technical solutions: a low-noise horizontal centrifugal pump, including a horizontal centrifugal pump body, a buffer structure and a housing are arranged below the horizontal centrifugal pump body, a moving mechanism is arranged inside the housing, and a support structure is arranged outside the housing;

[0007] The moving mechanism includes casters, a reduction motor, a lead screw and a mounting plate arranged inside the housing, a slider threadedly connected to the outside of the lead screw, and an adjusting rod hinged between the slider and the mounting plate;

[0008] The support structure includes a mounting table welded to the side wall of the housing, a rotating nut rotatably mounted on the mounting table, a support rod threadedly connected to the inside of the rotating sleeve and passing through the inside of the mounting table, and a horizontal foot fixedly mounted at the bottom end of the support rod.

[0009] Further, the buffer structure includes a support frame welded to the lower surface of the horizontal centrifugal pump body and a buffer pad fixedly mounted on the upper surface of the housing, and the support frame is mounted on the buffer pad by bolts.

[0010] Further, the casters are rotatably mounted on the lower surface of the mounting plate, an activity port is formed inside the housing, and the casters can extend to the outside of the housing through the activity port.

[0011] Further, the inside of the housing is hollow, and two symmetrically arranged mounting seats are fixedly mounted on the inner top wall thereof, and the reduction motor is fixedly mounted on the outside of one of the mounting seats.

[0012] Further, the number of the structures other than the reduction motor in the moving mechanism is two, the two lead screws are respectively connected to the two mounting seats by bearings, and one end of one of the lead screws is fixed to the output shaft of the reduction motor, and a coupling for connection is arranged between the two lead screws.

[0013] Further, the threads on the two lead screws are arranged in opposite directions, and the two adjusting rods are crossed and rotatably connected.

[0014] Further, guide rods passing through the inside of the mounting plate are fixedly mounted between the lower surfaces of the two mounting seats and the inner bottom wall of the housing, and a maintenance plate is detachably mounted outside the housing.

[0015] Further, a limiting component for limiting the slider is arranged on the inner top wall of the housing, a controller is mounted on the back of the housing, and a wiring hole and a heat dissipation hole are formed on the back of the housing.

[0016] Compared with the prior art, the utility model provides a low-noise horizontal centrifugal pump, which has the following beneficial effects:

[0017] 1. The low-noise horizontal centrifugal pump can support the horizontal centrifugal pump body, ensure that the horizontal centrifugal pump body adapts to roads with different flatness, enable the horizontal centrifugal pump body to be stably placed, reduce shaking, achieve low noise, and thus have the advantages of strong practicability and stable placement. It solves the problem that when encountering an uneven road surface, directly placing the horizontal centrifugal pump may cause the center of gravity to be unstable due to vibration during operation, posing a risk of the horizontal centrifugal pump tipping over.

[0018] 2. In this low-noise horizontal centrifugal pump, the reduction motor drives two sliders to move relative to each other through a lead screw, causing the adjusting rod to rotate and drive the casters to move downward and lift the horizontal centrifugal pump body, thereby enabling the movement of the horizontal centrifugal pump body and improving its mobility. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structure diagram of the present utility model;

[0020] Figure 2 is a structural sectional view of the housing of the present utility model;

[0021] Figure 3 is of the present utility model Figure 2 an enlarged structural schematic diagram of A shown;

[0022] Figure 4 is of the present utility model Figure 1 an enlarged structural schematic diagram of B shown.

[0023] In the figure: 1. Horizontal centrifugal pump body; 2. Support frame; 3. Housing; 4. Buffer pad; 5. Caster; 6. Mounting seat; 7. Reduction motor; 8. Lead screw; 9. Slider; 10. Adjusting rod; 11. Mounting plate; 12. Coupling; 13. Limiting component; 14. Guide rod; 15. Moving port; 16. Mounting table; 17. Rotating nut; 18. Support rod; 19. Horizontal foot; 20. Maintenance plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Embodiment 1:

[0026] Please refer to Figures 1-4, A low-noise horizontal centrifugal pump, including a horizontal centrifugal pump body 1, a buffer structure and a housing 3 are arranged below the horizontal centrifugal pump body 1, a moving mechanism is arranged inside the housing 3, and a supporting structure is arranged outside the housing 3; a controller is installed on the back of the housing 3, and a wiring hole and a heat dissipation hole are opened on the back of the housing 3. The moving mechanism includes casters 5, a reduction motor 7, a lead screw 8 and a mounting plate 11 arranged inside the housing 3, a slider 9 threadedly connected to the outside of the lead screw 8, and an adjusting rod 10 hinged between the slider 9 and the mounting plate 11. The supporting structure includes a mounting table 16 welded to the side wall of the housing 3, a rotating sleeve 17 rotatably installed on the mounting table 6, a support rod 18 threadedly connected to the inside of the rotating sleeve 17 and passing through the inside of the mounting table 16, and a horizontal foot 19 fixedly installed at the bottom end of the support rod 18.

[0027] Among them, the number of the rotating sleeve 17, the support rod 18 and the horizontal foot 19 in the supporting structure is two, and the two rotating sleeves 17 are symmetrically arranged. The number of the supporting structures is two. The length of the support rod 18 is longer than the length of the housing 3, which can realize the support of the horizontal centrifugal pump body 1.

[0028] In this embodiment, the buffer structure includes a support frame 2 welded to the lower surface of the horizontal centrifugal pump body 1 and a buffer pad 4 fixedly installed on the upper surface of the housing 3, and the support frame 2 is installed on the buffer pad 4 through bolts. Through the installation of the buffer structure, it is ensured that the horizontal centrifugal pump body 1 is placed stably, realizing low noise.

[0029] Among them, the caster 5 is rotatably installed on the lower surface of the mounting plate 11, a movable opening 15 is opened inside the housing 3, and the caster 5 can extend to the outside of the housing 3 through the movable opening 15. The inside of the housing 3 is hollow, and two symmetrically arranged mounting seats 6 are fixedly installed on the inner top wall thereof, and the reduction motor 7 is fixedly installed outside one of the mounting seats 6.

[0030] It should be noted that the number of the structures other than the reduction motor 7 in the moving mechanism is two. The two lead screws 8 are respectively connected to the two mounting seats 6 by bearings, and one end of one of the lead screws 8 is fixed to the output shaft of the reduction motor 7. A coupling 12 is arranged between the two lead screws 8. The threads on the two lead screws 8 are arranged in the opposite direction, and the two adjusting rods 10 are cross-connected and rotatably connected.

[0031] When this embodiment is in use, start the reduction motor 7 to drive the two sliders 9 to displace relative to each other through the lead screw 8, so that the adjusting rod 10 rotates to drive the caster 5 to move downward and lift the horizontal centrifugal pump body 1, and then the horizontal centrifugal pump body 1 can be moved.

[0032] Embodiment Two:

[0033] Please refer to Figure 2, on the basis of the first embodiment, guide rods 14 penetrating the interior of the mounting plate 11 are fixedly installed between the lower surfaces of the two mounting seats 6 and the inner bottom wall of the housing 3, and a maintenance plate 20 is detachably installed outside the housing 3. A limiting component 13 for limiting the slider 9 is provided on the inner top wall of the housing 3.

[0034] In this embodiment, the limiting component 13 is composed of a slide rail fixedly installed on the inner top wall of the housing 3 and a slide bar fixedly installed on the upper surface of the slider 9 and slidably connected to the slide rail, which can realize the limitation of the slider 9. The number of slide bars in the limiting component 13 is two, and the two slide bars are respectively connected to the two sliders 9.

[0035] Among them, the number of the limiting components 13 and the moving mechanisms are both two.

[0036] By adopting the above technical solution, the stable adjustment of the casters 5 is realized.

[0037] The working principle of the above embodiment is as follows:

[0038] During use, start the reduction motor 7 to drive the two sliders 9 to displace relative to each other through the lead screw 8, so that the adjusting rod 10 rotates to drive the caster 5 to move downward and lift the horizontal centrifugal pump body 1, and then the horizontal centrifugal pump body 1 can be moved. After the horizontal centrifugal pump body 1 is displaced to the specified position, rotate the screw sleeve 17 to drive the support rod 18 to move downward, and the horizontal foot 19 contacts the ground and lifts the horizontal centrifugal pump body 1 to realize the support of the horizontal centrifugal pump body 1, so as to facilitate the horizontal centrifugal pump body 1 to adapt to different ground surfaces and ensure the stable operation of the horizontal centrifugal pump body 1.

[0039] The electrical components mentioned in the text are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device such as a computer for control, and the existing publicly disclosed power connection technology will not be elaborated in the text.

[0040] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the element.

[0041] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A low-noise horizontal centrifugal pump, comprising a horizontal centrifugal pump body (1), characterized in that: A buffer structure and a housing (3) are provided below the horizontal centrifugal pump body (1). A moving mechanism is provided inside the housing (3), and a support structure is provided outside the housing (3). The moving mechanism includes casters (5), a reduction motor (7), a lead screw (8) and a mounting plate (11) arranged inside the housing (3), a slider (9) threadedly connected to the outside of the lead screw (8), and an adjusting rod (10) hinged between the slider (9) and the mounting plate (11). The support structure includes a mounting table (16) welded to the side wall of the housing (3), a rotating sleeve (17) rotatably mounted on the mounting table (6), a support rod (18) threadedly connected to the inside of the rotating sleeve (17) and passing through the inside of the mounting table (16), and a horizontal foot (19) fixedly mounted at the bottom end of the support rod (18).

2. The low-noise horizontal centrifugal pump according to claim 1, wherein: The buffer structure includes a support frame (2) welded to the lower surface of the horizontal centrifugal pump body (1) and a buffer pad (4) fixedly mounted on the upper surface of the housing (3). The support frame (2) is mounted on the buffer pad (4) by bolts.

3. A low-noise horizontal centrifugal pump according to claim 1, characterized in that: The casters (5) are rotatably mounted on the lower surface of the mounting plate (11). An activity opening (15) is formed inside the housing (3), and the casters (5) can extend to the outside of the housing (3) through the activity opening (15).

4. A low-noise horizontal centrifugal pump according to claim 1, characterized in that: The inside of the housing (3) is hollow, and two symmetrically arranged mounting seats (6) are fixedly mounted on the inner top wall thereof. The reduction motor (7) is fixedly mounted outside one of the mounting seats (6).

5. The low-noise horizontal centrifugal pump according to claim 4, wherein: Except for the reduction motor (7), the number of the remaining structures in the moving mechanism is two. The two lead screws (8) are respectively connected to the two mounting seats (6) by bearings, and one end of one of the lead screws (8) is fixed to the output shaft of the reduction motor (7). A coupling (12) for connection is provided between the two lead screws (8).

6. The low-noise horizontal centrifugal pump according to claim 5, characterized in that: The threads on the two lead screws (8) are arranged in opposite directions, and the two adjusting rods (10) cross and are rotatably connected.

7. A low-noise horizontal centrifugal pump according to claim 5, characterized in that: A guide rod (14) passing through the inside of the mounting plate (11) is fixedly mounted between the lower surfaces of the two mounting seats (6) and the inner bottom wall of the housing (3). An inspection plate (20) is detachably mounted outside the housing (3).

8. A low-noise horizontal centrifugal pump according to claim 1, characterized in that: A limit assembly (13) for limiting the slider (9) is provided on the inner top wall of the housing (3). A controller is mounted on the back of the housing (3), and a wiring hole and a heat dissipation hole are formed on the back of the housing (3).

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