Fixing structure for oil absorption filter

Abstract

The utility model discloses a fixing structure for an oil suction filter, which belongs to the technical field of hydraulic pressure and comprises a connecting plate, the connecting plate is detachably connected to the outer wall of an oil tank, a quick-release connector is arranged on the upper portion of the connecting plate, the oil suction filter is connected to the upper portion of the quick-release connector, and a limiting supporting mechanism is arranged on the outer side of the oil tank. The limiting and supporting mechanism is used for limiting and supporting the oil suction filter, and the phenomenon that the filter is directly screwed on an oil tank, and under the working condition of frequent vibration or large load fluctuation, looseness and even oil leakage are easily caused by fretting wear of a thread pair or loss of pre-tightening force can be avoided.

Description

Technical Field

[0001] This utility model belongs to the field of hydraulic technology, specifically a fixed structure for an oil suction filter. Background Technology

[0002] Suction filters are essential equipment in hydraulic systems, primarily used to filter impurities in the hydraulic fluid and protect hydraulic pumps and valve assemblies from contamination. Currently, most suction filters are connected directly to the oil tank via threads, meaning the filter is screwed directly into the mounting hole on the tank wall through a threaded interface.

[0003] Direct threaded connections in filters are prone to loosening or even oil leakage under conditions of frequent vibration or large load fluctuations due to fretting wear of the threaded pair or loss of preload. For example, in high-vibration environments such as construction machinery and mining equipment, threaded connections often gradually loosen due to vibration and impact, which affects sealing performance and may even cause hydraulic oil leakage, increasing maintenance costs and safety risks. Utility Model Content

[0004] The purpose of this invention is to provide a fixing structure for an oil suction filter, so as to solve at least one aspect of the problems and defects mentioned in the background art.

[0005] A fixing structure for an oil suction filter is provided, including a connecting plate, which is detachably connected to the outer wall of an oil tank. A quick-release connector is provided on the upper part of the connecting plate, and an oil suction filter is connected to the upper part of the quick-release connector. A limiting support mechanism is provided on the outer side of the oil tank, which is used to limit and support the oil suction filter.

[0006] Furthermore, the outer wall of the oil tank is provided with a slot, and a magnetic block is provided in the slot. A magnetic part is provided on one side of the lower part of the connecting plate. The magnetic part is magnetically connected to the magnetic block. The slot design has a limiting and guiding function. The attraction force of the magnetic block will automatically pull the connecting plate into the alignment position, improve the alignment accuracy of the quick-release connector, ensure reliable sealing of the oil circuit connection, and facilitate the disassembly of the lower part of the connecting plate.

[0007] Furthermore, an elastic sealing ring is provided between the quick-release connector and the oil suction filter to seal and prevent leakage at the interface between the quick-release connector and the oil suction filter, thus preventing oil leakage from the oil tank.

[0008] Furthermore, an mounting plate is provided on one side of the upper part of the connecting plate, and mounting holes are provided around the upper part of the mounting plate. The upper part of the connecting plate is fixedly connected to the oil tank by bolts passing through several mounting holes, providing the main fixing force for the detachable connection between the mounting plate and the oil tank and bearing the structural load. The magnetic attraction part at the lower part of the connecting plate is magnetically connected to the magnetic block in the slot on the outer wall of the oil tank to achieve auxiliary positioning, absorb vibration, and improve assembly and disassembly efficiency.

[0009] Furthermore, the limiting support mechanism includes two lifting frames, which are disposed on the outer wall of the oil tank. Each of the two lifting frames is provided with a support plate, and a support block is slidably connected to the support plate. An upper limiting component is disposed between the two support plates.

[0010] Furthermore, the support plate has a sliding groove inside, and the support block is slidably connected in the sliding groove. The support block has a positioning hole. After the two support blocks are adjusted in the sliding groove, the positioning bolt is inserted through the positioning hole on the support block to firmly fix the support block in the target position in the sliding groove, thereby limiting the bottom of the outer wall on both sides of the oil suction filter and preventing it from shaking left and right and causing the threads to loosen.

[0011] Furthermore, the upper limiting assembly includes two adjusting plates, which are respectively fixedly connected to two support plates. Each adjusting screw is equipped with a fixing plate, and an upper limiting plate is fixedly connected between the two fixing plates. By rotating the screw, the fixing plate moves up and down along the thread, thereby achieving precise adjustment of the height of the upper limiting plate. This allows for the adaptation to filters of different models or within tolerance ranges. The connecting plate moves up and down with the adjusting screw to adjust the specific height position of the upper limiting plate, limiting problems such as lifting, jumping, and loosening of the oil suction filter during operation, and preventing loosening of the threads due to vibration.

[0012] Furthermore, each of the upper limiting plates is provided with a rubber layer, which serves as a flexible buffer medium to absorb vibration energy, delay the transmission of shock, and play a role in shock absorption and anti-jumping.

[0013] Furthermore, the upper limiting plate has a U-shaped cross-section, which can fully enclose and restrict the left and right sides and the top surface of the oil suction filter. When the oil suction filter tends to move up and down or left and right, the U-shaped edges of the upper limiting plate will act as a blockage to prevent the oil suction filter from slipping.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] The connecting plate evenly transmits the load of the suction filter to the oil tank structure, avoiding direct action on the oil tank. The quick-release connector allows for rapid connection or disconnection of the oil circuit, improving maintenance efficiency and reducing the risk of leakage. The limiting support mechanism is used to limit and support the suction filter, protecting the connection interface between the suction filter and the quick-release connector. Multi-directional limiting reduces the stress on the threaded pair and absorbs vibration energy, preventing the filter from being directly threaded onto the oil tank. Under conditions of frequent vibration or large load fluctuations, the threaded pair is prone to loosening or even oil leakage due to fretting wear or loss of preload. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this drawing or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this drawing. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 A side view schematic diagram of the overall structure of a fixing structure for an oil suction filter;

[0018] Figure 2 This is a front view of the overall structure of the present invention;

[0019] Figure 3 A cross-sectional structural diagram of the limiting support mechanism provided by this utility model.

[0020] In the diagram: 1. Connecting plate; 11. Magnetic suction part; 12. Mounting plate; 121. Mounting hole; 2. Oil tank; 21. Slot; 22. Magnetic block; 3. Quick-release connector; 4. Oil suction filter; 5. Limiting support mechanism; 51. Lifting frame; 52. Support plate; 521. Slide groove; 53. Support block; 531. Positioning hole; 54. Upper limiting component; 541. Adjusting plate; 542. Adjusting screw; 543. Fixing plate; 544. Upper limiting plate; 545. Rubber layer; 6. Elastic sealing ring. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this application clearer, the application is described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. All other embodiments obtained by those skilled in the art based on the embodiments provided in this application without inventive effort are within the scope of protection of this application.

[0022] Obviously, the accompanying drawings described below are merely some examples or embodiments of this application. Those skilled in the art can apply this application to other similar scenarios based on these drawings without any inventive effort. Furthermore, it is understood that although the efforts made in this development process may be complex and lengthy, for those skilled in the art related to the content disclosed in this application, any changes to design, manufacturing, or production based on the technical content disclosed in this application are merely conventional technical means and should not be construed as insufficient disclosure of the content of this application.

[0023] However, there may be instances where unnecessary detailed descriptions are omitted. For example, detailed descriptions of well-known matters or repetitive descriptions of essentially the same structures may be omitted. This is to avoid unnecessarily lengthy descriptions and to facilitate understanding by those skilled in the art. Furthermore, the accompanying drawings and the following description are provided to enable those skilled in the art to fully understand this application and are not intended to limit the subject matter of the claims.

[0024] Please see Figure 1-3 As shown in the embodiment of this utility model, a fixing structure for an oil suction filter includes a connecting plate 1, which is detachably connected to the outer wall of an oil tank 2. A quick-release connector 3 is provided on the upper part of the connecting plate 1. One side of the quick-release connector 3 is a quick-release female head fixed to the connecting plate 1, with an internal oil passage that leads directly to the oil tank 2. The other side is a quick-release male head that is detachably connected to an oil suction filter 4. The quick-release connector 3 is detachably connected to the oil suction filter 4, which facilitates the replacement of the oil suction filter 4 on the connecting plate 1. The quick-release connector 3 is connected to the oil suction filter 4. (The specific model of the quick-release connector 3 is Parker 6600 Series / ISO Type A.) A limit support mechanism 5 is provided on the outside of the oil tank 2. The limit support mechanism 5 is used to limit and support the oil suction filter 4.

[0025] The connecting plate 1 evenly transmits the load of the suction filter 4 to the oil tank 2 structure, avoiding direct action on the thin wall of the oil tank 2. The quick-release connector 3 quickly connects the oil circuit, enabling rapid connection or disconnection of the oil circuit, improving maintenance efficiency and reducing the risk of leakage. The limiting support mechanism 5 is used to limit and support the suction filter 4, protecting the connection interface between the suction filter 4 and the quick-release connector 3. Multi-directional limiting reduces the force on the threaded pair and absorbs vibration energy, which can prevent the filter from being directly threaded on the oil tank 2. Under conditions of frequent vibration or large load fluctuations, the threaded pair is prone to loosening or even oil leakage due to fretting wear or loss of preload.

[0026] In one embodiment, see Figure 1 , Figure 2 and Figure 3The outer wall of the oil tank 2 is provided with a slot 21, and a magnetic block 22 is provided in the slot 21. A magnetic part 11 is provided on one side of the lower part of the connecting plate 1. The magnetic part 11 is magnetically connected to the magnetic block 22. The slot 21 is designed to limit and guide. The attraction force of the magnetic block 22 will automatically pull the connecting plate 1 into the alignment position, improve the alignment accuracy of the quick-release connector 3, ensure reliable sealing of the oil circuit connection, and facilitate the disassembly of the lower part of the connecting plate 1.

[0027] In one embodiment, see Figure 1 , Figure 2 and Figure 3 An elastic sealing ring 6 is also provided between the quick-release connector 3 and the oil suction filter 4. The elastic sealing ring 6 is made of fluororubber or hydrogenated nitrile rubber and is used to seal and prevent leakage at the interface between the quick-release connector 3 and the oil suction filter 4, which would cause oil to leak out of the oil tank 2.

[0028] Specifically, please refer to Figure 1 and Figure 3 As shown, a mounting plate 12 is provided on one side of the upper part of the connecting plate 1. Mounting holes 121 are provided around the upper part of the mounting plate 12. The upper part of the connecting plate 1 is fixedly connected to the oil tank 2 by bolts passing through several mounting holes 121, providing the main fixing force for the detachable connection between the mounting plate 12 and the oil tank 2 and bearing the structural load. The magnetic suction part 11 at the lower part of the connecting plate 1 is magnetically connected to the magnetic suction block 22 in the slot 21 on the outer wall of the oil tank 2 to achieve auxiliary positioning, absorb vibration, and improve the assembly and disassembly efficiency.

[0029] Further, please refer to Figure 1 and Figure 3 As shown, the limiting support mechanism 5 includes two lifting frames 51, which are symmetrically arranged on the outer wall of the oil tank 2. (The lifting frame 51 consists of an outer seat and an inner seat. The inner seat is slidably connected to the outer seat. When the inner seat slides to a certain height inside the outer seat, it is locked by a positioning pin to achieve the adjustment of the support height.) Each lifting frame 51 is provided with a support plate 52. Support blocks 53 are slidably connected to the support plate 52. An upper limiting component 54 is provided between the two support plates 52. The support blocks 53 on both sides can be manually slidably adjusted in the sliding groove 521 to adapt to different specifications or installation tolerances of the suction filter 4. The upper limiting component 54 is used to limit the bottom sides of the suction filter 4. The upper limiting component 54 is used to limit the upper part of the suction filter 4.

[0030] Furthermore, a groove 521 is provided inside the support plate 52, and the support block 53 is slidably connected in the groove 521. The support block 53 is provided with a positioning hole 531. After the two support blocks 53 are adjusted in the groove 521, the positioning bolt is inserted through the positioning hole 531 on the support block 53 to firmly fix the support block 53 in the target position in the groove 521, thereby limiting the bottom of the outer wall on both sides of the oil suction filter 4 and preventing it from shaking left and right and causing the threads to loosen.

[0031] Further, please refer to Figure 1 , Figure 2 and Figure 3 As shown, the upper limiting assembly 54 includes two adjusting plates 541, which are fixedly connected to two support plates 52 respectively. Each adjusting plate 541 is provided with an adjusting screw 542, and each adjusting screw 542 is provided with a fixing plate 543. An upper limiting plate 544 is fixedly connected between the two fixing plates 543. By rotating the screw, the fixing plate 543 is driven to move up and down along the thread, so as to achieve precise adjustment of the height of the upper limiting plate 544. This allows for the adaptation to filters of different models or within tolerance ranges. The fixing plate 543 moves up and down with the adjusting screw 542 to adjust the specific height position of the upper limiting plate 544, limiting problems such as lifting, jumping, and loosening of the oil suction filter 4 during operation, and preventing the threads from loosening due to vibration.

[0032] Further, please refer to Figure 1 , Figure 2 and Figure 3 As shown, each of the upper limiting plates 544 is provided with a rubber layer 545. The rubber layer 545 serves as a flexible buffer medium, absorbing vibration energy and delaying the transmission of shock, thus playing a role in shock absorption and preventing jumping.

[0033] Furthermore, the upper limiting plate 544 has a U-shaped cross-section. Compared with a planar limiting plate, the U-shaped structure can fully enclose and restrict the left and right sides and the top surface of the oil suction filter 4. When the oil suction filter 4 tends to move up and down or left and right, the U-shaped edges of the upper limiting plate 544 will act as a blockage to prevent the oil suction filter 4 from slipping.

[0034] It should be noted that this application is not limited to the above-described embodiments. The above embodiments are merely examples, and any embodiments with the same structure and effect as the technical concept within the scope of this application are included in the technical scope of this application. Furthermore, various modifications that can be conceived by those skilled in the art to the embodiments, and other ways of constructing by combining some of the constituent elements of the embodiments, without departing from the spirit of this application, are also included in the scope of this application.

Claims

1. A fixing structure for an oil suction filter, comprising a connecting plate (1), said connecting plate (1) being detachably connected to the outer wall of an oil tank (2), characterized in that, The upper part of the connecting plate (1) is provided with a quick-release connector (3), the quick-release connector (3) is connected to an oil suction filter (4), and a limit support mechanism (5) is provided on the outside of the oil tank (2), the limit support mechanism (5) is used to limit and support the oil suction filter (4).

2. The fixing structure for an oil suction filter according to claim 1, characterized in that, The outer wall of the oil tank (2) is provided with a slot (21), and a magnetic block (22) is provided in the slot (21). A magnetic part (11) is provided on one side of the lower part of the connecting plate (1), and the magnetic part (11) is magnetically connected to the magnetic block (22).

3. The fixing structure for an oil suction filter according to claim 1, characterized in that, An elastic sealing ring (6) is also provided between the quick-release connector (3) and the oil suction filter (4).

4. The fixing structure for an oil suction filter according to claim 1, characterized in that, A mounting plate (12) is provided on one side of the upper part of the connecting plate (1), and mounting holes (121) are provided around the upper part of the mounting plate (12).

5. The fixing structure for an oil suction filter according to claim 1, characterized in that, The limiting support mechanism (5) includes two lifting frames (51), which are set on the outer wall of the oil tank (2). Each of the two lifting frames (51) is provided with a support plate (52), and a support block (53) is slidably connected to the support plate (52). An upper limiting component (54) is provided between the two support plates (52).

6. The fixing structure for an oil suction filter according to claim 5, characterized in that, The support plate (52) has a sliding groove (521) inside, the support block (53) is slidably connected in the sliding groove (521), and the support block (53) has a positioning hole (531).

7. The fixing structure for an oil suction filter according to claim 5, characterized in that, The upper limiting component (54) includes two adjusting plates (541), which are respectively fixedly connected to two support plates (52). Each adjusting plate (541) is provided with an adjusting screw (542), and each adjusting screw (542) is provided with a fixing plate (543). An upper limiting plate (544) is fixedly connected between the two fixing plates (543).

8. The fixing structure for an oil suction filter according to claim 7, characterized in that, Each of the upper limiting plates (544) is provided with a rubber layer (545).

9. The fixing structure for an oil suction filter according to claim 7, characterized in that, The upper limiting plate (544) has a U-shaped cross-section.

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