Plunger pump with built-in filtering structure

Abstract

The utility model relates to the technical field of plunger pump filtering, in particular to a plunger pump with a built-in filtering structure. Comprising a mounting cylinder, guide rings are symmetrically arranged in the mounting cylinder, reinforcing ribs are arranged on the two guide rings at intervals in the circumferential direction, the reinforcing ribs are fixedly connected with the inner wall of the mounting cylinder, damping cylinders are arranged on the two guide rings in the circumferential direction in a penetrating mode respectively, and a sliding rod is arranged between every two adjacent and opposite damping cylinders in a sliding mode; a mounting ring located between the two guide rings is fixedly arranged between the sliding rods, a filter plate used for filtering and screening impurities is arranged in the mounting ring, springs are symmetrically arranged on the sliding rods in a sleeving mode, and the two ends of each spring are connected with the adjacent guide ring and the mounting ring respectively. According to the utility model, by arranging the sliding rod, the damping cylinder and the spring, when fluid impacts the filter plate in an instantaneous high-pressure form, the impact force can be effectively absorbed and dispersed, so that the effect of relieving and slowly releasing the impact force is achieved, and the filter plate is prevented from directly bearing overlarge stress.

Description

Technical Field

[0001] This utility model relates to the field of plunger pump filtration technology, and more particularly to a plunger pump with a built-in filter structure. Background Technology

[0002] A plunger pump is a positive displacement pump that uses a reciprocating plunger to change volume within a pump cylinder to draw in and discharge fluid. These pumps are commonly used in applications requiring high-pressure liquid or gas transport, such as oil extraction, chemical production, food processing, and water treatment.

[0003] A search revealed a plunger pump built-in filter according to patent authorization announcement number CN210265108U, comprising a cylindrical metal substrate and a metal filter screen. The cylindrical metal substrate has external threads on its outer circumferential surface and a through hole along its axial direction. One end of the through hole has an annular groove, and the edge of the metal filter screen is embedded in the annular groove. This device achieves the filtering function of the oil inside the plunger pump through the aforementioned specific structure. However, due to the fixed connection design of the filter, when the oil inside the pump impacts the metal filter screen, the filter screen will bear a large impact force. Each reciprocating motion of the plunger causes the liquid to act on the metal screen from the flow direction in the form of instantaneous impact force. This keeps the filter screen in a high-stress state for a long time, thus significantly reducing its service life.

[0004] Therefore, given the above problems, there is an urgent need to propose a plunger pump with a built-in filter structure that can effectively mitigate the impact force. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, the present invention provides a plunger pump with a built-in filter structure that can effectively mitigate the impact force.

[0006] The technical solution is as follows: A plunger pump with a built-in filter structure includes a pump body, a mounting cylinder, guide rings, reinforcing ribs, damping cylinders, sliding rods, mounting rings, filter plates, and springs. The mounting cylinder is provided at the liquid inlet of the pump body. Guide rings are symmetrically arranged inside the mounting cylinder. Reinforcing ribs are arranged circumferentially on both guide rings. The reinforcing ribs are fixedly connected to the inner wall of the mounting cylinder. Damping cylinders are respectively installed circumferentially on the two guide rings. A sliding rod is slidably arranged between two adjacent damping cylinders. A mounting ring is fixedly arranged between the two guide rings between all the sliding rods. A filter plate for filtering impurities is provided inside the mounting ring. Springs are also symmetrically sleeved on each sliding rod. The two ends of the springs are respectively connected to the adjacent guide rings and mounting rings.

[0007] Furthermore, it also includes a sealing ring, with the mounting ring having a sealing ring that adheres to the inner wall of the mounting cylinder.

[0008] Furthermore, it also includes protective covers. Protective covers adapted to the layout of the sliding rod are provided circumferentially on both sides of the mounting ring. The ends of the protective covers are connected to the adjacent guide rings to cover and protect the springs on the same side.

[0009] Furthermore, it also includes clamping plates. The inner walls on both sides of the mounting ring are equipped with clamping plates that engage with the filter plate, allowing the filter plate and the mounting ring to be detached.

[0010] Furthermore, it also includes screws, with screws threaded around both sides of the mounting ring at circumferential intervals. The screws abut against the clamping plate on the same side to fix the position of the clamping plate and the filter plate.

[0011] Furthermore, a groove is formed along the circumference of the inner ring of the mounting ring, which is used to place the filter plate.

[0012] The beneficial effects are as follows: 1. By setting up sliding rods, damping cylinders and springs, when fluid impacts the filter plate in the form of instantaneous high pressure, these components can effectively absorb and disperse the impact force, so as to achieve the effect of reducing and releasing the impact force, avoiding the filter plate from directly bearing excessive stress, thereby extending the service life of the filter plate.

[0013] 2. This utility model enables quick replacement of filter plates through the setting of a clamping plate and a screw, without the need for complicated tools or professional skills, reducing maintenance costs and time. At the same time, this detachable design also makes cleaning and inspection easier. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural cross-sectional view of the guide ring, reinforcing rib, and damping cylinder of this utility model.

[0016] Figure 3 This is a three-dimensional sectional view of the mounting ring, filter plate, spring, and other components of this utility model.

[0017] Figure 4 This is a three-dimensional structural cross-sectional view of the sliding rod, spring, and protective cover of this utility model.

[0018] Figure 5 This is a three-dimensional structural diagram of part A of this utility model.

[0019] Figure 6 This utility model Figure 5 Enlarged 3D structural cross-sectional view of part A.

[0020] The parts and their numbers in the diagram are as follows: 1. Pump body, 2. Mounting cylinder, 3. Guide ring, 4. Reinforcing rib, 5. Damping cylinder, 6. Sliding rod, 7. Mounting ring, 71. Sealing ring, 8. Filter plate, 9. Spring, 10. Protective cover, 11. Clamping plate, 12. Screw. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Example: A plunger pump with a built-in filter structure, such as Figures 1-4 As shown, the pump includes a pump body 1, a mounting cylinder 2, guide rings 3, reinforcing ribs 4, damping cylinders 5, sliding rods 6, mounting rings 7, a filter plate 8, and a spring 9. The pump body 1 is a plunger pump. The mounting cylinder 2 is located at the inlet of the pump body 1, providing a mounting platform for various components. Guide rings 3 are symmetrically arranged front and back inside the mounting cylinder 2. Each guide ring 3 has three reinforcing ribs 4 spaced circumferentially. The reinforcing ribs 4 are fixed to the inner wall of the mounting cylinder 2 by bolts, ensuring the stability of the overall assembly and enhancing the overall structural integrity. Three damping cylinders 5 are circumferentially inserted on each of the two guide rings 3. The damping cylinders 5 and the reinforcing ribs 4 are arranged in a staggered, spaced layout, effectively avoiding conflicts in assembly positions and ensuring efficient use of space in the guide rings 3. A sliding rod 6 is slidably arranged between two adjacent, opposite damping cylinders 5. The damping cylinder 5 guides the corresponding sliding rod 6 to slide in the front and back direction and also helps to slow down the movement speed of the sliding rod 6. To provide a certain damping effect, a mounting ring 7 is fixedly installed between the two guide rings 3 and the three sliding rods 6. A groove is formed around the inner ring of the mounting ring 7, and a filter plate 8 for filtering impurities is embedded in the groove of the mounting ring 7. The filter plate 8 is the main filtration structure of the pump body 1, and the groove lays the foundation for the subsequent detachable design of the filter plate 8. Each sliding rod 6 is symmetrically fitted with a spring 9. The front and rear ends of the spring 9 are connected to the adjacent guide ring 3 and mounting ring 7, respectively. When the filter plate 8 is impacted by the fluid, it is forced to move, which in turn causes the sliding rods 6 to slide in opposite directions in the corresponding damping cylinder 5. The corresponding spring 9 is deformed by the force, and the damping cylinder 5 stably slows down the movement speed of the spring 9 and the sliding rod 6, thereby effectively releasing the impact force on the filter plate 8 and achieving the effect of reducing the impact force, thus effectively protecting the filter plate 8 in use.

[0023] like Figure 3 , Figure 5 and Figure 6 As shown, it also includes a sealing ring 71. The mounting ring 7 is provided with a sealing ring 71 that is in contact with the inner wall of the mounting cylinder 2, thereby ensuring the sealing between the mounting ring 7 and the mounting cylinder 2.

[0024] like Figure 2and Figure 4 As shown, it also includes a protective cover 10. The front and rear sides of the mounting ring 7 are respectively provided with protective covers 10 that are adapted to the layout of the sliding rod 6 along the circumferential direction. The ends of the protective covers 10 are respectively connected to the adjacent guide rings 3, so as to cover the spring 9 and internal parts on the same side, thereby protecting the spring 9 and internal parts from external factors and keeping the structure clean.

[0025] like Figure 5 and Figure 6 As shown, it also includes a clamping plate 11. The inner walls of the front and rear sides of the mounting ring 7 are provided with clamping plates 11 that engage with the filter plate 8. The side of the clamping plate 11 facing the filter plate 8 has a protrusion along the circumference, and the filter plate 8 also has holes and slots spaced along the circumference to engage with the adjacent protrusions. This allows the clamping plates 11 on both sides to clamp and fix the filter plate 8. At the same time, it also allows the filter plate 8 to be detached from the mounting ring 7 when it is no longer in contact with the clamping plate 11, so as to facilitate the subsequent cleaning and replacement of the filter plate 8.

[0026] like Figure 5 and Figure 6 As shown, it also includes screws 12. Screws 12 are threaded through both sides of the mounting ring 7 at circumferential intervals. The screws 12 abut against the clamping plate 11 on the same side to fix the position of the clamping plate 11 and the filter plate 8, ensuring that the position of the filter plate 8 is fixed and preventing it from shifting during operation.

[0027] When fluid enters the mounting cylinder 2 from the inlet of pump body 1, the water flow first passes through the mounting ring 7 and then through the filter plate 8. The filter plate 8 removes impurities from the fluid, ensuring that clean fluid can continue to flow into the interior of pump body 1. Here, with the reciprocating motion of the plunger, the fluid impacts the filter plate 8 in the form of instantaneous high pressure. At this time, the guide ring 3 and the sliding rod 6 slide accordingly, and the spring 9 deforms accordingly. Under the action of the damping cylinder 5, the sliding rod 6 generates a certain resistance. This resistance can effectively reduce the vibration caused by fluid impact and spring 9 deformation, thereby avoiding The filter plate 8 directly bears excessive impact force, thus mitigating some of the impact. This process repeats, causing the spring 9 to deform continuously under impact. The sliding rod 6, along with the guide ring 3 and the filter plate 8, moves back and forth. Without affecting the normal flow of fluid or the filter screen, this reduces the impact force on the filter plate 8, extending its service life and effectively protecting important components. When the filter plate 8 needs to be replaced, simply loosen the corresponding screw 12 to remove it, forcing the retaining plate 11 to separate from the filter plate 8. Then, remove the used filter plate 8 and install the new filter plate 8 into the mounting ring 7.

[0028] It should be understood that the above description is for illustrative purposes only and is not intended to limit the present invention. Those skilled in the art will understand that variations of the present invention will be included within the scope of the claims herein.

Claims

1. A plunger pump with a built-in filter structure, comprising a pump body (1), characterized in that, It also includes an installation cylinder (2), guide rings (3), reinforcing ribs (4), damping cylinders (5), sliding rods (6), installation rings (7), filter plates (8), and springs (9). An installation cylinder (2) is provided at the liquid inlet of the pump body (1). Guide rings (3) are symmetrically arranged inside the installation cylinder (2). Reinforcing ribs (4) are arranged circumferentially on both guide rings (3). The reinforcing ribs (4) are fixedly connected to the inner wall of the installation cylinder (2). Reinforcing ribs (4) are arranged circumferentially on both guide rings (3). A damping cylinder (5) is inserted through the damping cylinder (5), and a sliding rod (6) is slidably arranged between two adjacent opposing damping cylinders (5). A mounting ring (7) is fixedly arranged between two guide rings (3) between all the sliding rods (6). A filter plate (8) for filtering impurities is provided inside the mounting ring (7), and a spring (9) is symmetrically sleeved on each of the sliding rods (6). The two ends of the spring (9) are respectively connected to the adjacent guide ring (3) and the mounting ring (7).

2. A plunger pump with a built-in filter structure according to claim 1, characterized in that, It also includes a sealing ring (71), on which the mounting ring (7) is provided with a sealing ring (71) that is in contact with the inner wall of the mounting cylinder (2).

3. A plunger pump with a built-in filter structure according to claim 2, characterized in that, It also includes a protective cover (10), on both sides of the mounting ring (7) are respectively provided with protective covers (10) that are adapted to the layout of the sliding rod (6) along the circumferential direction. The ends of the protective covers (10) are respectively connected to the adjacent guide ring (3) to cover and protect the spring (9) on the same side.

4. A plunger pump with a built-in filter structure according to claim 3, characterized in that, It also includes a retaining plate (11), and the inner walls on both sides of the mounting ring (7) are provided with retaining plates (11) that engage with the filter plate (8), so that the filter plate (8) and the mounting ring (7) can be detached.

5. A plunger pump with a built-in filter structure according to claim 4, characterized in that, It also includes screws (12), and screws (12) are threaded through both sides of the mounting ring (7) at circumferential intervals. The screws (12) abut against the clamping plate (11) on the same side to fix the position of the clamping plate (11) and the filter plate (8).

6. A plunger pump with a built-in filter structure according to claim 5, characterized in that, The mounting ring (7) has a groove along its circumference on the inner ring position, and the groove is used to place the filter plate (8).

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