Plunger pump with filtering structure

Abstract

The utility model belongs to the field of plunger pumps, and particularly relates to a plunger pump with a filter structure, which comprises a plunger pump, a filter box and a fixing mechanism. A filter box is arranged on the plunger pump, a sealing plate is connected to the top of the filter box in an inserted mode, three filter plates are fixedly installed on the sealing plate, the three filter plates are all connected with the filter box in a sliding mode, a fixing mechanism is arranged on the sealing plate and connected with the filter box, an oil inlet is formed in the plunger pump, and an oil outlet is formed in the oil inlet. And one end of the oil inlet is connected with the filter box in a sealing manner. According to the oil filter, through cooperation of all the components, the effect of filtering impurities in oil can be achieved, the effect of rapidly disassembling and assembling the sealing plate and the three filter plates can be achieved without tools, and only one worker is needed for operation; and the convenience and the practicability are greatly improved.

Description

Technical Field

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

[0002] A piston pump is an important component of a hydraulic system. It relies on the reciprocating motion of a piston within a cylinder to change the volume of the sealed working chamber, thus achieving oil suction and pressure. Piston pumps offer advantages such as high rated pressure, compact structure, high efficiency, and convenient flow rate adjustment, making them widely used in high-pressure, high-flow-rate applications where flow rate regulation is required, such as hydraulic presses, construction machinery, and ships.

[0003] In existing technologies, when a plunger pump circulates and pumps oil during operation, the oil flows within the pump and pipeline for extended periods, easily generating impurities that mix into the oil. When this mixture continues to flow into the pump, it can cause wear on internal components, reducing the pump's lifespan. To address this issue, application number 202420091303.8 discloses a plunger pump with a filtration function. This pump includes a pump body, with a filter box mounted on the outer casing. The pump body's oil inlet is connected to one side of the filter box, and the filter box has a liquid inlet on the other side. An opening is located at the top of the filter box, where a sealing plate is installed. Multiple spaced filter plates are installed inside the filter box, each connected to the sealing plate. Pulling the sealing plate allows the filter plates to be removed from the filter box. Limiting mechanisms are located on the front and rear sides of the filter box to limit and fix the sealing plate during installation.

[0004] The above-mentioned patent has the following problems when used: During use, at least two of the limit blocks on the same side need to be moved at the same time to disassemble, so two workers are required to cooperate in the operation, resulting in low work efficiency and inconvenient disassembly and assembly. The operation steps are cumbersome during the maintenance of the blockage pump, which leads to a waste of manpower and time and needs to be improved.

[0005] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a plunger pump with a filtration structure.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A plunger pump with a filtration structure includes a plunger pump, a filter box, and a fixing mechanism;

[0009] The plunger pump is equipped with a filter box, and a sealing plate is inserted into the top of the filter box. Three filter plates are fixedly installed on the sealing plate, and the three filter plates are slidably connected to the filter box. The sealing plate is equipped with a fixing mechanism, which is connected to the filter box. The plunger pump is equipped with an oil inlet, and one end of the oil inlet is sealed to the filter box.

[0010] The fixing mechanism includes a storage tank, a threaded rod, a piston, a sliding groove, a limiting plate, a through hole, and a connecting groove. The sealing plate has a storage tank. Through the cooperative design between the filter box, the sealing plate, the fixing mechanism, and the filter plates, it can not only filter impurities in the oil, but also achieve the effect of quick disassembly and installation of the sealing plate and the three filter plates without the need for tools. Moreover, it can be operated by only one person, which greatly improves convenience and practicality.

[0011] Preferably, a piston is slidably connected inside the storage tank, and a threaded rod is threadedly connected to the piston. The threaded rod is rotatably connected to the sealing plate. By rotating the rotating plate, the threaded rod rotates on the sealing plate and performs threaded transmission with the piston, so that the piston slides up and down inside the storage tank.

[0012] Preferably, the sealing plate has four sliding grooves, each containing a limiting plate that is slidably connected to it. Each limiting plate engages with the filter box. The filter box has four slots on its inner side, each matching one of the limiting plates. The sealing plate has four through holes, each connecting to one of the sliding grooves. When the piston slides upward, it compresses the hydraulic oil above it, which is then pumped through the four through holes to the areas between the ends of the limiting plates and the sliding grooves. This increases the pressure within the sliding grooves. Under this pressure, the limiting plates slide outward within the sliding grooves and engage with the four slots on the inner side of the filter box. Through the interaction between the limiting plates and the slots, the sealing plate is fixed in place, allowing for quick installation of the sealing plate and the three filter plates.

[0013] Preferably, each of the four limiting plates has a groove on both sides, and the four sliding grooves are adapted to the four limiting plates respectively. Hydraulic oil is contained in both the four sliding grooves and the storage groove. The sealing plate has four connecting grooves, which are connected to the four sliding grooves respectively. One end of each of the four connecting grooves corresponds to a groove on one side of the four limiting plates. When the piston slides downward, the piston squeezes the hydraulic oil below the piston and delivers it to the area between the grooves on the four limiting plates and the four sliding grooves through the four connecting grooves. This increases the pressure in the corresponding four grooves. Under the pressure, the four limiting plates slide into the four sliding grooves. During this process, one end of each of the four limiting plates squeezes the hydraulic oil in the four sliding grooves and delivers the hydraulic oil at one end of each of the four limiting plates to the storage groove through the four through holes. This causes the four limiting plates to disengage from the four slots inside the filter box, thereby releasing the sealing plate from its limiting position.

[0014] Preferably, the four connecting grooves and the four through holes are located on both sides of the piston. A sealing ring is fixedly sleeved on the piston. A sealing gasket is fixedly connected to one end of each of the four limiting plates. A sealing bearing is fixedly sleeved on the threaded rod. The outer wall of the sealing bearing is fixedly connected to the sealing plate to improve the sealing performance. A rotating plate is fixedly connected to one end of the threaded rod to facilitate the rotation of the threaded rod and the pulling of the sealing plate.

[0015] Preferably, the filter box has an inlet on one side, through which oil is fed into the filter box. After being filtered by three filter plates in sequence, the oil is then fed into the plunger pump through the oil inlet, thereby achieving the effect of filtering impurities in the oil, extending the service life of the plunger pump, and ensuring the normal operation of the plunger pump. The plunger pump has an outlet, through which the oil in the plunger pump is discharged.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] (1) The present invention provides a plunger pump with a filter structure, which sends oil into the filter box from the inlet on one side, filters it through three filter plates in sequence, and then sends it into the plunger pump from the oil inlet, thereby achieving the effect of filtering impurities in the oil, extending the service life of the plunger pump, and ensuring the normal use of the plunger pump.

[0018] (2) The plunger pump with a filter structure of this utility model can achieve the effect of quick disassembly and installation of the sealing plate and the three filter plates without the aid of tools through the cooperative design between the filter box, the sealing plate and the fixing mechanism. Moreover, only one worker is needed to operate it, which greatly improves the convenience and practicality. Attached Figure Description

[0019] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary. The structures, proportions, sizes, etc., shown in this specification are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which this utility model can be implemented. Therefore, they have no substantial technical significance, and any modification of the structure, change of the proportional relationship, or adjustment of the size is not permitted.

[0020] Figure 1 This is a three-dimensional schematic diagram of a plunger pump with a filter structure proposed in this utility model;

[0021] Figure 2 This is an assembly diagram of a plunger pump with a filter structure proposed in this utility model;

[0022] Figure 3 This is a schematic diagram of the cover plate of a plunger pump with a filter structure proposed in this utility model.

[0023] Figure 4 This is a schematic diagram of the fixing mechanism of a plunger pump with a filter structure proposed in this utility model.

[0024] Explanation of reference numerals in the attached drawings: 1. Plunger pump; 2. Filter box; 3. Sealing plate; 4. Fixing mechanism; 41. Storage tank; 42. Threaded rod; 43. Piston; 44. Sliding groove; 45. Limiting plate; 46. Through hole; 47. Connecting groove; 48. Rotating plate; 5. Liquid inlet; 6. Oil inlet; 7. Oil outlet; 8. Filter plate. Detailed Implementation

[0025] 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.

[0026] This utility model provides a plunger pump with a filter structure, see reference. Figure 1-4A plunger pump with a filter structure includes a plunger pump 1, a filter box 2, and a fixing mechanism 4.

[0027] The plunger pump 1 is equipped with a filter box 2. A sealing plate 3 is inserted into the top of the filter box 2. Three filter plates 8 are fixedly installed on the sealing plate 3. All three filter plates 8 are slidably connected to the filter box 2. A fixing mechanism 4 is provided on the sealing plate 3. The fixing mechanism is connected to the filter box 2. The plunger pump 1 is equipped with an oil inlet 6. One end of the oil inlet 6 is sealed to the filter box 2.

[0028] The fixing mechanism 4 includes a storage tank 41, a threaded rod 42, a piston 43, a sliding groove 44, a limiting plate 45, a through hole 46, and a connecting groove 47. The sealing plate 3 has a storage tank 41. Through the cooperative design between the filter box 2, the sealing plate 3, the fixing mechanism 4, and the filter plate 8, it can not only achieve the effect of filtering impurities in the oil, but also achieve the effect of quick disassembly and installation of the sealing plate 3 and the three filter plates 8 without the need for tools. Moreover, only one person is needed to operate it, which greatly improves convenience and practicality.

[0029] See attached document Figure 3 A piston 43 is slidably connected inside the storage tank 41. A threaded rod 42 is threadedly connected to the piston 43. The threaded rod 42 is rotatably connected to the sealing plate 3. By rotating the rotating plate 48, the threaded rod 42 rotates on the sealing plate 3 and performs threaded transmission with the piston 43, so that the piston 43 slides up and down inside the storage tank 41.

[0030] See attached document Figure 2-3 The sealing plate 3 has four sliding grooves 44, each of which is slidably connected to a limit plate 45. Each limit plate 45 engages with the filter box 2. The filter box 2 has four slots on its inner side, each slot fitting one of the four limit plates 45. The sealing plate 3 has four through holes 46, each connecting to one of the four sliding grooves 44. When the piston 43 slides upward, it compresses the hydraulic oil above it, which is then transported through the four through holes 46 to the four limit plates. The area between the end of plate 45 and the four sliding grooves 44 increases the pressure within the four sliding grooves 44. Under the pressure, the four limiting plates slide outward within the four sliding grooves 44, and the four limiting plates 45 engage with the four slots on the inner side of the four filter boxes 2. Through the interaction between the four limiting plates 45 and the four slots, the sealing plate 3 is fixed, thereby achieving the effect of quick installation of the sealing plate 3 and the three filter plates 8.

[0031] See attached document Figure 2-3Each of the four limiting plates 45 has a groove on both sides. Four sliding grooves 44 are respectively adapted to the four limiting plates 45. Hydraulic oil is contained in both the four sliding grooves 44 and the storage groove 41. The sealing plate 3 has four connecting grooves 47, which are respectively connected to the four sliding grooves 44. One end of each connecting groove 47 corresponds to a groove on one side of each of the four limiting plates 45. When the piston 43 slides downwards, it compresses the hydraulic oil below it and delivers it to the four limiting plates 45 through the action of the four connecting grooves 47. The area between the groove and the four sliding grooves 44 increases the pressure in the corresponding four grooves. Under the pressure, the four limiting plates 45 slide into the four sliding grooves 44. During this process, one end of the four limiting plates 45 squeezes the hydraulic oil in the four sliding grooves 44, and the hydraulic oil at one end of the four limiting plates 45 is transported to the storage tank 41 through the four through holes 46. This causes the four limiting plates 45 to disengage from the four slots inside the filter box 2, thereby releasing the limiting effect on the sealing plate 3.

[0032] See attached document Figure 4 Four connecting grooves 47 and four through holes 46 are located on both sides of piston 43. A sealing ring is fixedly fitted on piston 43. A sealing gasket is fixedly connected to one end of each of the four limiting plates 45. A sealing bearing is fixedly fitted on threaded rod 42. The outer wall of the sealing bearing is fixedly connected to sealing plate 3 to improve sealing performance. A rotating plate 48 is fixedly connected to one end of threaded rod 42 to facilitate rotation of threaded rod 42 and to facilitate pulling of sealing plate 3.

[0033] See attached document Figure 1-2 The filter box 2 has an inlet 5 on one side. The oil is fed into the filter box 2 through the inlet 5 on one side. After being filtered by three filter plates 8 in sequence, it is then fed into the plunger pump 1 through the oil inlet 6. This achieves the effect of filtering impurities in the oil, extending the service life of the plunger pump and ensuring its normal operation. The plunger pump 1 has an outlet 7, through which the oil in the plunger pump 1 is discharged.

[0034] Working principle: When in use, the oil is fed into the filter box 2 through the inlet 5 on one side, and after being filtered by the three filter plates 8 in sequence, it is then fed into the plunger pump 1 through the oil inlet 6, thereby achieving the effect of filtering impurities in the oil.

[0035] By rotating the rotating plate 48, the threaded rod 42 rotates on the sealing plate 3 and performs threaded transmission with the piston 43, so that the piston 43 slides up and down in the storage tank 41.

[0036] When piston 43 slides downward, piston 43 squeezes the hydraulic oil below piston 43 and delivers it to the area between the grooves and sliding grooves 44 on the four limiting plates 45 through the four connecting grooves 47. This increases the pressure in the corresponding four grooves. Under the pressure, the four limiting plates 45 slide into the four sliding grooves 44. During this process, one end of the four limiting plates 45 squeezes the hydraulic oil in the four sliding grooves 44 and delivers the hydraulic oil at one end of the four limiting plates 45 to the storage tank 41 through the four through holes 46. This causes the four limiting plates 45 to disengage from the four slots inside the filter box 2, thereby releasing the sealing plate 3 from its position. Then, the sealing plate 3 is pulled by the rotating plate 48 and the threaded rod 42. At the same time, the sealing plate 3 drives the three filter plates 8 to move synchronously, so that the sealing plate 3 and the three filter plates 8 filter the filter box 2. This achieves the effect of quickly disassembling the three filter plates 8 and the sealing plate 3.

[0037] When piston 43 slides upward, it compresses the hydraulic oil above it and delivers it through the four through holes 46 to the area between the ends of the four limiting plates 45 and the four sliding grooves 44. This increases the pressure in the four sliding grooves 44. Under the pressure, the four limiting plates slide outward in the four sliding grooves 44 and engage with the four slots on the inner side of the four filter boxes 2. Through the interaction between the four limiting plates 45 and the four slots, the sealing plate 3 is fixed, thus achieving the effect of quick installation of the sealing plate 3 and the three filter plates 8.

[0038] The technological advancements of this invention compared to existing technologies are as follows: through the cooperation of various components, not only can impurities in the oil be filtered, but the sealing plate 3 and the three filter plates 8 can also be quickly disassembled and installed without the use of tools. Moreover, only one person is needed to operate it, which greatly improves convenience and practicality.

[0039] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A plunger pump with a filter structure, characterized in that, It includes a plunger pump (1), a filter box (2), and a fixing mechanism (4); The plunger pump (1) is equipped with a filter box (2), and a sealing plate (3) is inserted into the top of the filter box (2). Three filter plates (8) are fixedly installed on the sealing plate (3). All three filter plates (8) are slidably connected to the filter box (2). A fixing mechanism (4) is provided on the sealing plate (3). The fixing mechanism is connected to the filter box (2). The plunger pump (1) is equipped with an oil inlet (6). One end of the oil inlet (6) is sealed to the filter box (2). The fixing mechanism (4) includes a storage tank (41), a threaded rod (42), a piston (43), a sliding groove (44), a limiting plate (45), a through hole (46), and a connecting groove (47). The sealing plate (3) has a storage tank (41). A piston (43) is slidably connected in the storage tank (41). A threaded rod (42) is threadedly connected to the piston (43). The threaded rod (42) is rotatably connected to the sealing plate (3). The sealing plate (3) has four sliding grooves (44). Each of the four sliding grooves (44) has a limiting plate (45) slidably connected in it. Each of the four limiting plates (45) is engaged with the filter box (2). The filter box (2) has four slots on its inner side. Each of the four slots is adapted to the four limiting plates (45). The sealing plate (3) has four through holes (46). Each of the four through holes (46) is connected to the four sliding grooves (44). The limiting plate (45) has a groove on both sides. The four sliding grooves (44) are adapted to the four limiting plates (45). Hydraulic oil is provided in the four sliding grooves (44) and the storage groove (41). The sealing plate (3) has four connecting grooves (47). The four connecting grooves (47) are connected to the four sliding grooves (44). One end of the four connecting grooves (47) corresponds to the groove on one side of the four limiting plates (45). The four connecting grooves (47) and the four through holes (46) are located on both sides of the piston (43). A sealing ring is fixedly fitted on the piston (43). A sealing gasket is fixedly connected to one end of each of the four limiting plates (45). A sealing bearing is fixedly fitted on the threaded rod (42). The outer wall of the sealing bearing is fixedly connected to the sealing plate (3). A rotating plate (48) is fixedly connected to one end of the threaded rod (42).

2. A plunger pump with a filter structure according to claim 1, characterized in that, The filter box (2) has an inlet (5) on one side and an oil outlet (7) on the plunger pump (1).

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