Centrifugal pump protection structure
By designing an interconnected protective platform and synchronization components, the problem of the centrifugal pump protective structure needing to be operated separately during transport was solved. This enabled the automatic expansion and contraction of the protective frame, simplified the operation process, and improved work efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DALIAN YUAN KUN MASCH EQUIP CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-05-26
Smart Images

Figure CN224282985U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pump body protection technology, and in particular to a centrifugal pump protection structure. Background Technology
[0002] Centrifugal pumps, as a common fluid transport device, are widely used in many fields such as industry, agriculture, construction, and civil engineering due to their advantages of simple structure, stable operation, and high efficiency. In practical applications, centrifugal pumps need to be frequently transferred and fixed in place, which places stringent requirements on their protective structure.
[0003] Effective protection is crucial for centrifugal pumps during actual use. Existing centrifugal pump protection structures typically employ frames and protective covers to prevent damage to the pump casing from external forces. However, these structures present significant operational inconveniences when transporting the pump. Firstly, transporting the pump requires separately removing lifting rods and other handling aids, followed by further enlarging the protective frame to accommodate the increased space needed for pump protection and handling during transport. Secondly, once the pump is in place, the lifting rods must be retracted, and the protective frame adjusted to fit the pump's dimensions for targeted protection. This separate operation of existing protective structures and lifting rods significantly increases the workload and efficiency for operators.
[0004] Therefore, it is necessary to provide a centrifugal pump protection structure to solve the above-mentioned technical problems. Utility Model Content
[0005] This invention provides a centrifugal pump protective structure, which solves the problem that the protective structure and the lifting rod need to be operated separately when transferring a centrifugal pump.
[0006] To solve the above-mentioned technical problems, the present invention provides a centrifugal pump protection structure including: a protective platform, a centrifugal pump and two protective frames. The centrifugal pump is fixedly installed at the top center of the protective platform. The two anti-slip frames are located at the top of the protective platform and are arranged around the outside of the centrifugal pump. Pull plates are provided on the front and rear sides of the protective platform. The pull plates can slide relative to the protective platform in the front and rear directions, causing the two protective frames to move closer to or away from the centrifugal pump.
[0007] Preferably, the bottom of the protective platform is fixedly connected to two support rods, both ends of which are fixedly connected to the bottom of the protective platform. The top of the protective platform is provided with multiple sliding grooves, and the middle of the bottom of the protective platform is also fixedly connected to two square sliding sleeves. Square support rods are fixedly connected to the front and rear sides of the bottom of the protective platform, and a limiting hole plate is fixedly connected to the bottom of the pull plate near the front of the protective platform.
[0008] Both of the aforementioned protective frames have a circular sleeve and a circular rod fixedly connected to the side of the centrifugal pump, with the circular rod fitted inside the circular sleeve.
[0009] The bottom of the protective platform is equipped with a synchronization component, which includes two synchronization plates and two synchronization gears. The two synchronization plates are located above the protective platform and have two slide rods fixedly connected to their bottoms. The tops of the synchronization plates are fixedly connected to the bottom of the protective frame. The slide rods are slidably connected in the slide grooves. Synchronous racks are fixedly connected to both slide rods and mesh with the synchronization gears. The synchronization racks are positioned opposite each other on both sides of the synchronization gears. The two synchronization gears are located below the protective platform and have synchronization rotating rods fixedly connected to them. The synchronization rotating rods are rotatably connected to the bottom of the protective platform, and a drive gear is fixedly connected to the bottom of the synchronization rods.
[0010] Both of the aforementioned pull plates are fixedly connected to a square rod and a square sleeve, with the square rod and the square sleeve arranged opposite to each other. The square sleeve on the pull plate located at the front of the protective platform is provided with two sets of spring buttons on its side. The square sleeve and the square sliding sleeve are adapted to each other. A drive rack is also fixedly connected to the pull plate, and the drive rack is located between the square rod and the square sleeve. The drive rack meshes with the drive gear.
[0011] A transmission rod is fixedly connected to the bottom center of the protective platform. A transmission gear is rotatably connected to the transmission rod, and the transmission gear meshes with the drive racks on the two pull plates.
[0012] Compared with related technologies, the centrifugal pump protection structure provided by this utility model has the following beneficial effects:
[0013] This device changes the traditional model where the protective frame and lifting rod need to be operated separately, linking the lifting rod's movement with the change in the size of the protective frame. When moving a centrifugal pump, workers only need to remove the lifting rod, and the protective frame automatically expands without additional operation; after the centrifugal pump is in place, retracting the lifting rod causes the protective frame to automatically shrink, simplifying the operation process and effectively reducing workload. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0015] Figure 2 This is a schematic diagram of the structure of the synchronization component of this utility model;
[0016] Figure 3 This is a detailed structural diagram of the pull plate of this utility model;
[0017] Figure 4 This is a schematic diagram of the structure of the protective platform and protective frame of this utility model.
[0018] The following are the labeling elements in the diagram: 1. Protective platform; 11. Support rod; 12. Slide groove; 13. Square sliding sleeve; 14. Square support rod; 15. Restricting orifice plate; 2. Centrifugal pump; 3. Protective frame; 31. Circular sleeve; 32. Circular rod; 4. Synchronization assembly; 41. Synchronization plate; 411. Slide rod; 412. Synchronization rack; 42. Synchronization gear; 421. Synchronization rotating rod; 422. Drive gear; 5. Pull plate; 51. Square rod; 52. Square sleeve; 521. Spring button; 53. Drive rack; 6. Transmission rod; 61. Transmission gear. Detailed Implementation
[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0020] Please refer to the following: Figures 1 to 4 A centrifugal pump protection structure includes: a protective platform 1, a centrifugal pump 2, a protective frame 3, a synchronization component 4, and a pull plate 5. The centrifugal pump 2 is fixedly installed on the top of the protective platform 1. The protective frame 3 is located on the top of the protective platform 1 and surrounds the outside of the centrifugal pump 2. The synchronization component 4 is located at the bottom of the protective platform 1 and is connected to the protective frame 3. The pull plate 5 is located on the front and rear sides of the protective platform 1 and can slide relative to the protective platform 1. The centrifugal pump 2 is placed in the middle of the top of the protective platform 1. There are two protective frames 3 located outside the centrifugal pump 2. When the centrifugal pump 2 is moved, the pull plates 5 on the front and rear sides of the protective platform 1 are pulled to slide, which can drive the two protective frames 3 on the synchronization component 4 to move away from the centrifugal pump 2, so that it has a larger protection range. When the centrifugal pump 2 is moved to the designated range, the pull plate 5 is reset, and the two protective frames 3 on the synchronization component 4 can be tightly fitted again to protect the centrifugal pump 2.
[0021] Two support rods 11 are fixedly connected to the bottom of the protective platform 1. Both ends of the support rods 11 are fixedly connected to the bottom of the protective platform 1. Multiple sliding grooves 12 are opened on the top of the protective platform 1. Two square sliding sleeves 13 are fixedly connected to the middle of the bottom of the protective platform 1. Square struts 14 are fixedly connected to the front and rear sides of the bottom of the protective platform 1. A limiting hole plate 15 is fixedly connected to the bottom of the pull plate 5 near the front of the protective platform 1. Two limiting holes are opened on the limiting hole plate 15. The support rods 11 support the entire device. The synchronization component 4 can drive the protective frame 3 to move closer to or away from the centrifugal pump 2 along the direction of the sliding grooves 12. The square sliding sleeves 13 and the square struts 14 are used to support the pull plate 5. The limiting hole plate 15 is used to limit the distance that the pull plate 5 is pulled out.
[0022] Both protective frames 3 are fixedly connected to a circular sleeve 31 and a circular rod 32 on the side near the centrifugal pump 2. The circular rod 32 is sleeved inside the circular sleeve 31. When the protective frame 3 moves closer to or further away from the centrifugal pump 2, the circular rod 32 slides inside the circular sleeve 31, ensuring that the front and rear sides of the centrifugal pump 2 are always protected by the protective frame 3 when the protective frame 3 slides relative to the centrifugal pump 2.
[0023] The synchronization component 4 includes two synchronization plates 41 and two synchronization gears 42. Both synchronization plates 41 are located above the protective platform 1, and their bottoms are fixedly connected to two sliding rods 411. The tops of the synchronization plates 41 are fixedly connected to the bottom of the protective frame 3. The sliding rods 411 are slidably connected within the sliding grooves 12. Synchronization racks 412 are fixedly connected to each of the two sliding rods 411, and the synchronization racks 412 mesh with the synchronization gears 42. The synchronization racks 412 are positioned opposite each other on both sides of the synchronization gears 42. Both synchronization gears 42 are located below the protective platform 1, and the synchronization racks... A synchronous rotating rod 421 is fixedly connected to the wheel 42. The synchronous rotating rod 421 is rotatably connected to the bottom of the protective platform 1, and a drive gear 422 is fixedly connected to the bottom of the synchronous rod. When the drive gear 422 rotates, it drives the synchronous rotating rod 421 to rotate, which in turn causes the synchronous gear 42 to rotate, which in turn causes the two synchronous racks 412 to move relative to each other, which in turn causes the slider to slide inside the slide groove 12. The synchronous plate 41 at the top of the slider moves simultaneously, moving closer to or away from the centrifugal pump 2, thereby causing the two protective frames 3 to move closer to or away from the centrifugal pump 2 simultaneously.
[0024] Two pull plates 5 are fixedly connected to square rods 51 and square sleeves 52, with the square rods 51 and square sleeves 52 arranged opposite to each other. The square sleeve 52 on the pull plate 5 located in front of the protective platform 1 has two sets of spring buttons 521 on its side. The spring buttons 521 are adapted to the limiting holes on the limiting hole plate 15. The square sleeve 52 is adapted to the square sliding sleeve 13. A drive rack 53 is also fixedly connected to the pull plate 5, and the drive rack 53 is located between the square rod 51 and the square sleeve 52. The drive rack 53 meshes with the drive gear 422. The square rod 51 on the pull plate 5 is sleeved inside the square sleeve 52 on the other pull plate 5. When the pull plate 5 in front of the protective platform 1 is pulled, the square rod 51 slides inside the square sleeve 52, and the square sleeve 52 is slidably connected inside the square sleeve 52. At the same time, the drive rack 53 slides, thereby driving the drive gear 422 to rotate through meshing, so that the synchronization component 4 starts to work.
[0025] When transferring the centrifugal pump 2, pull out the pull plate 5, and the transfer personnel lift the device by using the two pull plates 5. The square sleeve 52 and the square rod 51 support the entire device through the square sliding sleeve 13 and the square support rod 14.
[0026] A transmission rod 6 is fixedly connected to the bottom center of the protective platform 1. A transmission gear 61 is rotatably connected to the transmission rod 6, and the transmission gear 61 meshes with the drive racks 53 on the two pull plates 5. When the drive rack 53 on the pull plate 5 located at the front of the protective platform 1 slips, the drive gear 422 rotates, and the drive rack 53 simultaneously drives the transmission gear 61 on the transmission rod 6 to rotate. In turn, through meshing, the transmission rack on the pull plate 5 at the rear of the protective platform 1 is moved, so that the pull plate 5 at the rear also moves away from the protective platform 1.
[0027] The working principle of the centrifugal pump protection structure provided by this utility model is as follows:
[0028] Drive racks 53 are fixed on the pull plates 5 on the front and rear sides of the protective platform 1. The drive racks 53 mesh with the drive gears 422 in the synchronization assembly 4. When the pull plate 5 on the front side is pulled, the drive racks 53 slide back and forth with the pull plate 5, driving the drive gears 422 to rotate.
[0029] The drive gear 422 is fixedly connected to the synchronous gear 42 via the synchronous rotating rod 421. When the drive gear 422 rotates, it drives the synchronous gear 42 to rotate synchronously. The synchronous gear 42 meshes with the synchronous rack 412 on both sides. The synchronous rack 412 is fixed on the slide rod 411, and the top of the slide rod 411 is connected to the synchronous plate 41. When the synchronous gear 42 rotates, the synchronous racks 412 on both sides move in opposite directions due to the meshing relationship (one side moves away from the centrifugal pump 2, and the other side moves closer). Through the slide rod 411, the protective frame 3 is driven to slide along the slide groove 12, realizing the synchronous opening and closing of the two protective frames 3.
[0030] When transferring centrifugal pump 2, the pull plate 5 needs to be pulled out as a lifting rod. When the front pull plate 5 is pulled out, the square sleeve 52 of the front pull plate 5 slides in the square sliding sleeve 13. A set of spring buttons 521 separates from the limiting hole of the limiting hole plate 15, releasing the position lock. Another set of spring buttons 521 is inserted into the limiting hole of the limiting hole plate 15 to lock the position again. The drive rack 53 of the front pull plate 5 slides forward, driving the drive gear 422 to rotate. The synchronous gear 42 rotates accordingly. The synchronous racks 412 on both sides of the synchronous gear 42 move forward and backward, so that the pull plates 5 on both the front and rear sides extend simultaneously to be used as lifting rods.
[0031] After the centrifugal pump 2 is installed in place, the square sleeve 52 of the pull plate 5 slides in the square sliding sleeve 13, the spring button 521 is engaged in the limiting hole of the limiting hole plate 15 to lock the position, the drive rack 53 slides forward, driving the drive gear 422 to rotate counterclockwise, the synchronous gear 42 rotates in the opposite direction, the synchronous rack 412 moves towards the center, and the protective frame 3 is pulled towards the centrifugal pump 2 through the slide rod 411 and the synchronous plate 41 to reduce the gap of the protective frame and fit tightly against the shell of the centrifugal pump 2 to achieve targeted protection;
[0032] When the protective frame 3 moves, the circular rod 32 on one side slides inside the circular sleeve 31 on the other side, ensuring that the protective frame 3 remains stable when it moves and avoiding deviation or shaking.
[0033] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A centrifugal pump guard structure, comprising: The protective platform (1), centrifugal pump (2) and two protective frames (3) are provided. The centrifugal pump (2) is fixedly installed at the top center of the protective platform (1). The two anti-slip frames are located at the top of the protective platform (1) and are arranged around the outside of the centrifugal pump (2). The protective platform (1) is characterized by having pull plates (5) on both the front and rear sides. The pull plates (5) can slide relative to the protective platform (1) in the front and rear directions, thereby moving the two protective frames (3) closer to or away from the centrifugal pump (2).
2. A centrifugal pump protection structure according to claim 1, characterized in that The bottom of the protective platform (1) is fixedly connected to two support rods (11), both ends of which are fixedly connected to the bottom of the protective platform (1). The top of the protective platform (1) is provided with multiple sliding grooves (12). The bottom center of the protective platform (1) is also fixedly connected to two square sliding sleeves (13). The front and rear sides of the bottom of the protective platform (1) are fixedly connected to square support rods (14). The bottom of the pull plate (5) near the front of the protective platform (1) is fixedly connected to a limiting hole plate (15).
3. A centrifugal pump protection structure according to claim 1, wherein Both of the protective frames (3) are fixedly connected to a circular sleeve (31) and a circular rod (32) on the side near the centrifugal pump (2), and the circular rod (32) is sleeved inside the circular sleeve (31).
4. The centrifugal pump protection structure according to claim 2, characterized in that, The bottom of the protective platform (1) is provided with a synchronization component (4). The synchronization component (4) includes two synchronization plates (41) and two synchronization gears (42). The two synchronization plates (41) are located above the protective platform (1) and are fixedly connected to two slide rods (411) at the bottom. The top of the synchronization plate (41) is fixedly connected to the bottom of the protective frame (3). The slide rods (411) are slidably connected in the slide groove (12). The two slide rods (411) are fixedly connected to a synchronization rack (412), and the synchronization rack (412) meshes with the synchronization gear (42). The synchronization rack (412) is arranged opposite to the two sides of the synchronization gear (42). The two synchronization gears (42) are located below the protective platform (1), and are fixedly connected to a synchronization rotating rod (421). The synchronization rotating rod (421) is rotatably connected to the bottom of the protective platform (1), and is fixedly connected to a drive gear (422) at the bottom of the synchronization rod.
5. A centrifugal pump protection structure according to claim 4, characterized in that, A square rod (51) and a square sleeve (52) are fixedly connected to each of the two pull plates (5), and the square rod (51) and the square sleeve (52) are arranged opposite to each other. The square sleeve (52) on the pull plate (5) located in front of the protective platform (1) has two sets of spring buttons (521) on its side. The square sleeve (52) is adapted to the square sliding sleeve (13). A drive rack (53) is also fixedly connected to the pull plate (5), and the drive rack (53) is located between the square rod (51) and the square sleeve (52). The drive rack (53) meshes with the drive gear (422).
6. A centrifugal pump protection structure according to claim 5, characterized in that, A transmission rod (6) is fixedly connected to the bottom center of the protective platform (1). A transmission gear (61) is rotatably connected to the transmission rod (6), and the transmission gear (61) meshes with the drive racks (53) on the two pull plates (5).