Electrostatic oil filter convenient for replacing filter element

Abstract

The utility model relates to the field of electrostatic oil filters, in particular to an electrostatic oil filter with a filter element convenient to replace. Comprising a frame and a mounting structure, two first-stage filtering devices, two second-stage filtering devices and two electrostatic filtering devices are arranged in the frame, and the two first-stage filtering devices, the two second-stage filtering devices and the two electrostatic filtering devices are all connected with the frame through the mounting structure; an oil inlet device and an oil outlet device are installed at one end of the frame, a hopper is fixedly connected to the end, close to the oil outlet device, of the frame, connecting pipes are fixedly connected to the lower ends of the first-stage filtering device, the second-stage filtering device and the electrostatic filtering device, and six installation structures are installed in the frame. The electrostatic oil filter with the filter element convenient to replace has the advantages that the electrostatic filter element can be conveniently and rapidly replaced, the replacement time of the electrostatic filter element can be greatly saved, and the electrostatic filter element replacement efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of electrostatic oil filters, and in particular to an electrostatic oil filter that is easy to replace the filter element. Background Technology

[0002] An electrostatic oil filter consists of a frame, a primary filtration device, a secondary filtration device, an electrostatic filter, a hopper, an oil inlet device, an oil outlet device, and connecting pipes. It is a device used for multi-stage filtration of oil and is quite common in daily life.

[0003] Existing technologies, such as the utility model patent with publication number CN202427252U, disclose a vacuum electrostatic oil filter. This patent employs an oil inlet and an outlet connected to the inlet, a moisture sensor for detecting water content in the oil, a vacuum filter and an electrostatic purifier connected to the two outlets of the moisture sensor, respectively. The outlet of the vacuum filter for filtering water is connected to the inlet of the electrostatic purifier for filtering impurities. The outlet of the vacuum electrostatic filter is connected to the oil tank where the inlet is located. The moisture sensor detects and determines the water content in the oil. Oil with high moisture content enters the vacuum filter and undergoes multiple cycles until the moisture content is acceptable before entering the electrostatic purifier. Oil with acceptable moisture content enters the electrostatic purifier. After multiple passes through the vacuum filter and electrostatic purifier, the oil is purified to a satisfactory level. This allows for online moisture detection and high purification accuracy: particulate matter of all sizes can be removed (minimum 0.02μm particles can be removed), and the oil in the tank can ultimately maintain a NAS3 level (10 times cleaner than new oil).

[0004] In daily use, it has been found that existing electrostatic filter elements suffer from reduced efficiency or even failure over long-term use due to the accumulation of static charge or blockage by impurities in the oil. In such cases, filter element replacement is necessary. However, if the filter element design does not consider ease of replacement, it may require disassembling the entire oil filtration unit, increasing operational difficulty and cost. Furthermore, current installation methods use multiple bolts for fixing, but these bolts are prone to corrosion after prolonged use, making it difficult to disassemble and replace the electrostatic filter element. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an electrostatic oil filter that facilitates filter element replacement.

[0006] To solve the above-mentioned technical problems, this utility model provides an electrostatic oil filter that facilitates filter element replacement, comprising: a frame and an installation structure. The frame contains two primary filtration devices, two secondary filtration devices, and two electrostatic filtration devices. All three devices are connected to the frame via the installation structure. One end of the frame is equipped with an oil inlet device and an oil outlet device. A hopper is fixedly connected to the end of the frame near the oil outlet device. Connecting pipes are fixedly connected to the lower ends of each primary, secondary, and electrostatic filtration device. Six installation structures are installed inside the frame, each including four positioning rods, all of which are fixedly connected to the frame. The positioning rod has a card slidably connected to its arc surface. Several rotating rods are fixedly connected to the upper surface of the card. The arc surfaces of the primary filter, secondary filter, and electrostatic filter are all fixedly connected to a fixing ring. The inner wall of the fixing ring has a rotating groove, and the inner wall of the rotating groove is slidably connected to the rotating rod. The positioning rod is slidably connected to the primary filter, secondary filter, and electrostatic filter, respectively. The arc surfaces of the primary filter, secondary filter, and electrostatic filter are all fixedly connected to a slide rail. A slider is slidably connected to the inner wall of the slide rail. An insertion rod is fixedly connected to the lower surface of the slider. The inner wall of the card has an insertion hole, and the insertion rod is adapted to the insertion hole. A spring is installed inside the slide rail, and the two ends of the spring are fixedly connected to the slider and the slide rail, respectively.

[0007] The aforementioned components achieve the following effect: When installing the primary, secondary, and electrostatic filtration devices, pulling the primary, secondary, and electrostatic filtration devices moves them. Each device drives its fixing ring to move, which in turn moves the rotating groove. The rotating groove then moves the rotating rod. A card is inserted into the positioning rod. After moving to the appropriate position, the slider is pulled upwards. The slider slides along the inner wall of the slide rail, which in turn moves the insertion rod. The slider then stretches the spring, causing the card to rotate. The card moves the rotating rod, which slides along the inner wall of the rotating groove. Finally, the card is engaged and fixed into the positioning rod.

[0008] Preferably, a plurality of movable blocks are fixedly connected to the arc surface of the card, and the plurality of movable blocks are evenly distributed on the card.

[0009] The effect achieved by the above components is that when it is necessary to rotate the card, the moving block can be rotated directly, and the moving block drives the card to rotate, making it more convenient to rotate the card.

[0010] Preferably, an anti-slip pad, which is a rubber pad, is fixedly connected to the inner wall of the positioning rod.

[0011] The effect achieved by the above components is that the anti-slip pad can increase the friction between the positioning rod and the card, preventing slippage when the positioning rod and the card are connected.

[0012] Preferably, a limiting rod is fixedly connected inside the slide rail, the limiting rod is slidably connected to the slider, and the spring is sleeved on the arc surface of the limiting rod.

[0013] The effect achieved by the above components is that the limiting rod can limit the spring, prevent the spring from deforming during use, and improve the service life of the spring.

[0014] Preferably, the lower surface of the frame is provided with a plurality of support structures, each support structure including two screws, the two screws being fixedly connected to the frame, a connecting plate being slidably connected to the surface of the screws, a support plate being fixedly connected to one end of the two connecting plates that are close to each other, and a threaded ring being rotatably connected to the lower surface of the connecting plate, the threaded ring being threadedly connected to the screw.

[0015] The effect achieved by the above components is as follows: when it is necessary to support the connecting pipe, the threaded ring is rotated and moved. The threaded ring moves on the screw, and the threaded ring drives the connecting plate to move. The connecting plate slides on the arc surface of the screw, and the connecting plate drives the support plate to move. The support plate moves upward, and then the support plate supports the connecting pipe.

[0016] Preferably, a plurality of protective pads are fixedly connected to the upper surface of the support plate, and the cross-section of the protective pads is arc-shaped.

[0017] The effect achieved by the above components is that the protective pad can protect the connecting pipe and prevent the support plate from being worn when supporting the connecting pipe.

[0018] Preferably, a plurality of handles are fixedly connected to the arc surface of the threaded ring, and the plurality of handles are evenly distributed on the threaded ring.

[0019] The effect achieved by the above components is that the handle can be rotated directly when rotating the threaded ring, and the handle drives the threaded ring to move, making it more convenient to move the threaded ring.

[0020] Compared with related technologies, the electrostatic oil filter provided by this utility model, which facilitates filter element replacement, has the following beneficial effects:

[0021] By designing an installation structure, this invention addresses the issue that existing electrostatic filter elements, due to the accumulation of static charge or clogging by impurities in the oil, experience reduced efficiency or even failure over long-term use. In such cases, filter element replacement is necessary. However, if the filter element design does not prioritize ease of replacement, it may require disassembling the entire oil filtration unit, increasing operational difficulty and cost. Furthermore, existing installation methods utilize multiple bolts for fixing, which are prone to corrosion after prolonged use, making disassembly and replacement of the electrostatic filter element difficult. This device achieves convenient and rapid replacement of the electrostatic filter element, significantly reducing replacement time and improving replacement efficiency.

[0022] By setting up a support structure, the connecting pipes that connect the primary filter, secondary filter, and electrostatic filter can be supported, thus preventing the connecting pipes from shaking. Attached Figure Description

[0023] Figure 1 A schematic diagram of the structure of an electrostatic oil filter that facilitates filter element replacement, provided by this utility model;

[0024] Figure 2 for Figure 1 The diagram shows the side structure.

[0025] Figure 3 for Figure 1 The installation structure diagram shown is shown below;

[0026] Figure 4 for Figure 3 The enlarged view at point A is shown below;

[0027] Figure 5 for Figure 3 The diagram shows a partial structural representation.

[0028] Figure 6 for Figure 1 The diagram shows the supporting structure.

[0029] The diagram is labeled as follows: 1. Frame; 2. Primary filtration device; 3. Secondary filtration device; 4. Electrostatic filtration device; 5. Hopper; 6. Oil inlet device; 7. Oil outlet device; 8. Installation structure; 801. Fixing ring; 802. Rotating rod; 803. Positioning rod; 804. Card; 805. Moving block; 806. Rotating groove; 807. Insertion hole; 808. Insertion rod; 809. Slide rail; 810. Limiting rod; 811. Sliding block; 812. Spring; 813. Anti-slip pad; 9. Support structure; 91. Screw; 92. Threaded ring; 93. Handle; 94. Support plate; 95. Protective pad; 96. Connecting plate. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0031] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0032] Please see Figures 1 to 6 This utility model provides an electrostatic oil filter that facilitates filter element replacement, comprising: a frame 1 and an installation structure 8. The frame 1 is internally provided with two primary filtration devices 2, two secondary filtration devices 3, and two electrostatic filtration devices 4. The two primary filtration devices 2, two secondary filtration devices 3, and two electrostatic filtration devices 4 are all connected to the frame 1 via the installation structure 8. An oil inlet device 6 and an oil outlet device 7 are respectively installed at one end of the frame 1. A hopper 5 is fixedly connected to the end of the frame 1 near the oil outlet device 7. Connecting pipes are fixedly connected to the lower ends of the primary filtration devices 2, secondary filtration devices 3, and electrostatic filtration devices 4. Six installation structures 8 are installed inside the frame 1, and several support structures 9 are provided on the lower surface of the frame 1.

[0033] In the embodiments of this utility model, please refer to Figures 3 to 5The installation structure 8 includes four positioning rods 803, all of which are fixedly connected to the frame 1. A card 804 is slidably connected to the arc surface of each positioning rod 803. Several rotating rods 802 are fixedly connected to the upper surface of the card 804. A fixing ring 801 is fixedly connected to the arc surfaces of the primary filter device 2, the secondary filter device 3, and the electrostatic filter device 4. A rotating groove 806 is formed on the inner wall of the fixing ring 801, and the inner wall of the rotating groove 806 is slidably connected to the rotating rods 802. The positioning rods 803 are respectively connected to the primary filter device 2, the secondary filter device 3, and the electrostatic filter device 4. The secondary filter device 3 and the electrostatic filter device 4 are slidably connected. The arc surfaces of the primary filter device 2, the secondary filter device 3 and the electrostatic filter device 4 are all fixedly connected to the slide rail 809. The inner wall of the slide rail 809 is slidably connected to the slider 811. The lower surface of the slider 811 is fixedly connected to the insertion rod 808. The inner wall of the card 804 is provided with an insertion hole 807. The insertion rod 808 is adapted to the insertion hole 807. The slide rail 809 is provided with a spring 812. The two ends of the spring 812 are fixedly connected to the slider 811 and the slide rail 809 respectively. When installing the primary filter 2, secondary filter 3, and electrostatic filter 4, pull the primary filter 2, secondary filter 3, and electrostatic filter 4 to move them. Each of these components will move its fixing ring 801, which in turn will move the rotating groove 806. The rotating groove 806 will then move the rotating rod 802. Next, insert the card 804 onto the positioning rod 803. After moving to the appropriate position, pull the slider 811 upwards. The slider 811 moves along the inner wall of the slide rail 809, causing the insertion rod 808 to move. The slider 811 also stretches the spring 812, causing the card 804 to rotate and move. The card 804 then moves the rotating rod 802, which slides along the inner wall of the rotating groove 806. The card 804 then engages with the positioning rod 803 for secure locking. Several moving blocks 805 are fixedly connected to the arc surface of the card 804, and these moving blocks 805 are evenly distributed on the card 804. When it is necessary to rotate the card 804, the moving blocks 805 can be rotated directly, causing the card 804 to rotate. The moving blocks 805 make rotating the card 804 more convenient. An anti-slip pad 813, which is a rubber pad, is fixedly connected to the inner wall of the positioning rod 803. The anti-slip pad 813 increases the friction between the positioning rod 803 and the card 804, preventing slippage when they are connected. A limit rod 810 is fixedly connected inside the slide rail 809, and the limit rod 810 is slidably connected to the slider 811. A spring 812 is fitted onto the arc surface of the limit rod 810. The limit rod 810 limits the spring 812, preventing deformation during use and extending its service life.

[0034] In the embodiments of this utility model, please refer to Figure 1 and Figure 6 The support structure 9 includes two screws 91, which are fixedly connected to the frame 1. Connecting plates 96 are slidably connected to the surfaces of the screws 91. A support plate 94 is fixedly connected to one end of the two connecting plates 96 that is close to each other. A threaded ring 92 is rotatably connected to the lower surface of the connecting plate 96, and the threaded ring 92 is threadedly connected to the screws 91. When support is needed for the connecting pipe, the threaded ring 92 is rotated and moved. The threaded ring 92 moves on the screws 91, causing the connecting plate 96 to move. The connecting plate 96 slides on the arc surface of the screws 91, causing the support plate 94 to move. The support plate 94 moves upward, and then supports the connecting pipe. Several protective pads 95 are fixedly connected to the upper surface of the support plate 94, and the cross-section of the protective pads 95 is arc-shaped. The protective pad 95 protects the connecting pipe and prevents wear from the support plate 94 when supporting the connecting pipe. Several levers 93 are fixedly connected to the arc surface of the threaded ring 92, and these levers 93 are evenly distributed on the threaded ring 92. When rotating the threaded ring 92, the levers 93 can be rotated directly, causing the threaded ring 92 to move. The levers 93 make moving the threaded ring 92 more convenient.

[0035] The working principle of the electrostatic oil filter machine with easy filter element replacement provided by this utility model is as follows: When it is necessary to install the primary filter device 2, the secondary filter device 3, and the electrostatic filter device 4, pull the primary filter device 2, the secondary filter device 3, and the electrostatic filter device 4 to move them. The primary filter device 2, the secondary filter device 3, and the electrostatic filter device 4 each drive the fixed ring 801 to move. The fixed ring 801 drives the rotating groove 806 to move. The rotating groove 806 drives the rotating rod 802 to move. Then, the card 804 is inserted into the positioning rod 803. After moving to the appropriate position, pull the slider 811 to move upward. The slider 811 slides on the inner wall of the slide rail 809. The slider 811 drives the insertion rod 808 to move. The spring 812 is stretched, and the card 804 is rotated and moved. The card 804 drives the rotating rod 802 to move. The rotating rod 802 slides on the inner wall of the rotating groove 806. Then, the card 804 is engaged with the positioning rod 803 for locking and fixing. When it is necessary to rotate the card 804, the moving block 805 can be rotated directly. The moving block 805 drives the card 804 to rotate, making it easier to rotate the card 804. The anti-slip pad 813 can increase the friction between the positioning rod 803 and the card 804, preventing slippage when the positioning rod 803 and the card 804 are connected. The limiting rod 810 can limit the spring 812, preventing the spring 812 from deforming during use and improving the service life of the spring 812.

[0036] When support is needed for the connecting pipe, the threaded ring 92 is rotated to move it. The threaded ring 92 moves on the screw 91, which in turn moves the connecting plate 96. The connecting plate 96 slides on the arc surface of the screw 91, and the connecting plate 96 moves the support plate 94. The support plate 94 moves upward and then supports the connecting pipe. The protective pad 95 can protect the connecting pipe and prevent the support plate 94 from wearing when supporting the connecting pipe. When rotating the threaded ring 92, the lever 93 can be rotated directly. The lever 93 moves the threaded ring 92, making it easier to move the threaded ring 92.

[0037] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0038] 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 description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An electrostatic oil filter that facilitates filter element replacement, characterized in that, include: The frame (1) and the mounting structure (8) are provided. Inside the frame (1) are two primary filters (2), two secondary filters (3) and two electrostatic filters (4). The two primary filters (2), two secondary filters (3) and two electrostatic filters (4) are connected to the frame (1) by means of the mounting structure (8). An oil inlet device (6) and an oil outlet device (7) are respectively installed at one end of the frame (1). The end of the frame (1) near the oil outlet device (7) is fixed. The hopper (5) is connected to the frame (1). The lower ends of the primary filter (2), secondary filter (3) and electrostatic filter (4) are all fixedly connected to connecting pipes. Six mounting structures (8) are installed inside the frame (1). Each mounting structure (8) includes four positioning rods (803). All four positioning rods (803) are fixedly connected to the frame (1). Cards (804) are slidably connected to the arc surface of the positioning rods (803). Several rotating rods (804) are fixedly connected to the upper surface of the cards (804). 2) The arc surfaces of the primary filter (2), secondary filter (3), and electrostatic filter (4) are all fixedly connected to a fixing ring (801). The inner wall of the fixing ring (801) is provided with a rotating groove (806). The inner wall of the rotating groove (806) is slidably connected to the rotating rod (802). The positioning rod (803) is slidably connected to the primary filter (2), secondary filter (3), and electrostatic filter (4) respectively. The arc surfaces of the device (4) are all fixedly connected to slide rails (809). The inner wall of the slide rail (809) is slidably connected to a slider (811). The lower surface of the slider (811) is fixedly connected to a plug rod (808). The inner wall of the card (804) is provided with a plug hole (807). The plug rod (808) is adapted to the plug hole (807). The slide rail (809) is provided with a spring (812). The two ends of the spring (812) are fixedly connected to the slider (811) and the slide rail (809) respectively.

2. The electrostatic oil filter with easy filter element replacement according to claim 1, characterized in that, The arc surface of the card (804) is fixedly connected to several moving blocks (805), and the several moving blocks (805) are evenly distributed on the card (804).

3. The electrostatic oil filter with easy filter element replacement according to claim 1, characterized in that, The inner wall of the positioning rod (803) is fixedly connected with an anti-slip pad (813), which is a rubber pad.

4. An electrostatic oil filter with easy filter element replacement according to claim 1, characterized in that, The slide rail (809) is internally fixedly connected to a limiting rod (810), the limiting rod (810) is slidably connected to the slider (811), and the spring (812) is sleeved on the arc surface of the limiting rod (810).

5. An electrostatic oil filter with easy filter element replacement according to claim 1, characterized in that, The lower surface of the frame (1) is provided with several support structures (9). Each support structure (9) includes two screws (91). The two screws (91) are fixedly connected to the frame (1). A connecting plate (96) is slidably connected to the surface of the screws (91). A support plate (94) is fixedly connected to one end of the two connecting plates (96) that are close to each other. A threaded ring (92) is rotatably connected to the lower surface of the connecting plate (96). The threaded ring (92) is threadedly connected to the screws (91).

6. An electrostatic oil filter with easy filter element replacement according to claim 5, characterized in that, The upper surface of the support plate (94) is fixedly connected with a number of protective pads (95), and the cross-section of the protective pads (95) is arc-shaped.

7. An electrostatic oil filter with easy filter element replacement according to claim 5, characterized in that, The arc surface of the threaded ring (92) is fixedly connected to several handles (93), and the several handles (93) are evenly distributed on the threaded ring (92).

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